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TION EVALUA AVAILA SiGe, High-Linearity, 2300MHz 4000MHz Downconv


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19-4827; 10/09
TION EVALUA AVAILA
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
MAX19998 single, high-linearity downconversion mixer provides 8.7dB conversion gain, +24.3dBm input IP3, +11.3dBm input compression point, noise figure 9.7dB 2300MHz 4000MHz WiMAXK, LTE, MMDS receiver applications. With ultra-wide 2600MHz 4300MHz frequency range, MAX19998 used either low-side high-side injection architectures virtually 2.5GHz 3.5GHz applications. 2.5GHz variant tuned specifically high-side injection, refer MAX19996A. addition offering excellent linearity noise performance, MAX19998 also yields high level component integration. This device includes doublebalanced passive mixer core, amplifier, buffer. On-chip baluns also integrated allow single-ended inputs. MAX19998 requires nominal drive 0dBm, supply current typically 230mA 5.0V 150mA 3.3V. MAX19998 compatible with MAX19996/ MAX19996A 2000MHz 3900MHz mixer family. device also similar with MAX9984/MAX9986/ MAX9986A 400MHz 1000MHz mixers MAX9993/MAX9994/MAX9996 1700MHz 2200MHz mixers, making this entire family downconverters ideal applications where common layout used multiple frequency bands. MAX19998 available compact, 5mm, 20-pin thin with exposed pad. Electrical performance guaranteed over extended -40NC +85NC temperature range.
Features
2300MHz 4000MHz Frequency Range 2600MHz 4300MHz Frequency Range 50MHz 500MHz Frequency Range 8.7dB Conversion Gain 9.7dB Noise Figure +24.3dBm Typical Input +11.3dBm Typical Input Compression Point 67dBc Typical Spurious Rejection -10dBm Integrated Buffer Integrated Baluns Single-Ended Inputs -3dBm +3dBm Drive Compatible with MAX19996/MAX19996A 2000MHz 3900MHz Mixers Similar with MAX9984/MAX9986/ MAX9986A Series 400MHz 1000MHz Mixers MAX9993/MAX9994/MAX9996 Series 1700MHz 2200MHz Mixers Single 5.0V 3.3V Supply External Current-Setting Resistors Provide Option Operating Device Mode
MAX19998
Applications
2.5GHz WiMAX Base Stations 2.7GHz MMDS Base Stations 3.5GHz WiMAX Base Stations Fixed Broadband Wireless Access Wireless Local Loop Private Mobile Radios Military Systems
Ordering Information
PART MAX19998ETP+ MAX19998ETP+T TEMP RANGE -40NC +85NC -40NC +85NC PIN-PACKAGE Thin QFN-EP* Thin QFN-EP*
+Denotes lead(Pb)-free/RoHS-compliant package. Exposed pad. Tape reel.
WiMAX trademark WiMAX Forum.
Maxim Integrated Products
pricing, delivery, ordering information, please contact Maxim Direct 1-888-629-4642, visit Maxim's website www.maxim-ic.com.
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
ABSOLUTE MAXIMUM RATINGS
GND.-0.3V +5.5V IF+, IF-, LOBIAS, IFBIAS -0.3V (VCC 0.3V) Input Power +12dBm Current shorted through balun) .50mA Continuous Power Dissipation (Note (Notes +38NC/W (Notes +13NC/W Operating Case Temperature Range (Note -40NC +85NC Junction Temperature .+150NC Storage Temperature Range. -65NC +150NC Lead Temperature (soldering, 10s) .+300NC
Note Based junction temperature (BJC ICC). This formula used when temperature exposed known while device soldered down PCB. Applications Information section details. junction temperature must exceed +150NC. Note Junction temperature (BJA ICC). This formula used when ambient temperature known. junction temperature must exceed +150NC. Note Package thermal resistances were obtained using method described JEDEC specification JESD51-7, using fourlayer board. detailed information package thermal considerations, refer Note temperature exposed package. ambient temperature device PCB.
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
5.0V SUPPLY ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, 698, 604, 4.75V 5.25V, input signals. -40NC +85NC, unless otherwise noted. Typical values 5.0V, +25NC, parameters production tested.) PARAMETER Supply Voltage Supply Current SYMBOL Total supply current CONDITIONS 4.75 5.25 UNITS
3.3V SUPPLY ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, 845, 1.1k, 3.0V 3.6V, input signals. -40NC +85NC, unless otherwise noted. Typical values 3.3V, +25NC, parameters guaranteed design, unless otherwise noted.) (Note PARAMETER Supply Voltage Supply Current SYMBOL Total supply current CONDITIONS UNITS
RECOMMENDED OPERATING CONDITIONS
PARAMETER Frequency Range Frequency SYMBOL (Notes (Notes Using Mini-Circuits TC4-1W-17 transformer defined Typical Application Circuit, matching components affect frequency range (Notes Using Mini-Circuits TC4-1W-7A transformer defined Typical Application Circuit, matching components affect frequency range (Notes CONDITIONS 2300 2600 4000 4300 UNITS
Frequency
Drive
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
5.0V SUPPLY ELECTRICAL CHARACTERISTICS-fRF 3100MHz 3900MHz, LOW-SIDE INJECTION
(Typical Application Circuit, with tuning elements outlined Table 698, 604, 4.75V 5.25V, ports driven from sources, -3dBm +3dBm, -5dBm, 3100MHz 3900MHz, 300MHz, 2800MHz 3600MHz, fLO, -40NC +85NC. Typical values +25NC, 5.0V, -5dBm, 0dBm, 3500MHz, 3200MHz, 300MHz. parameters guaranteed design characterization, unless otherwise noted.) (Note PARAMETER Small-Signal Conversion Gain SYMBOL CONDITIONS +25NC (Notes 3100MHz 3900MHz, 100MHz band 3100MHz 3900MHz, 200MHz band 3100MHz 3900MHz, -40NC +85NC (Note fRF1 fRF2 1MHz, PRF1 PRF2 -5dBm/tone, +25NC (Note 3100MHz 3900MHz, fRF1 fRF2 1MHz, PRF1 PRF2 -5dBm/tone, -40NC +85NC NFSSB TCNF blockers present (Note blockers present, +25NC (Note Single sideband, blockers present, -40NC +85NC +8dBm blocker tone applied port, 3500MHz, 3200MHz, fBLOCKER 3750MHz, 0dBm, +5.0V, +25NC (Notes fSPUR 150MHz fSPUR 100MHz -10dBm (Note -5dBm (Note -10dBm (Note -5dBm (Note 10.0 0.15 -0.01 11.4 24.3 Q0.2 0.018 12.5 11.0 dB/NC dB/NC UNITS
MAX19998
Gain Variation Frequency
Conversion Gain Temperature Coefficient Input Compression Point Third-Order Input Intercept Point IIP3 Variation with Single-Sideband Noise Figure Noise Figure Temperature Coefficient Noise Figure Under Blocking
TCCG IP1dB IIP3
Spur Rejection Spur Rejection Input Return Loss Input Return Loss Output Impedance
RLRF RLLO
terminated into matched impedance terminated into matched impedance Nominal differential impedance IC's outputs terminated into 50I, driven source, transformed using external components shown Typical Application Circuit. Typical Operating Characteristics performance inductor values. 450MHz, 120nH 350MHz, 270nH 300MHz, 390nH
Output Return Loss
RLIF
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
5.0V SUPPLY ELECTRICAL CHARACTERISTICS-fRF 3100MHz 3900MHz, LOW-SIDE INJECTION (continued)
(Typical Application Circuit, with tuning elements outlined Table 698, 604, 4.75V 5.25V, ports driven from sources, -3dBm +3dBm, -5dBm, 3100MHz 3900MHz, 300MHz, 2800MHz 3600MHz, fLO, -40NC +85NC. Typical values +25NC, 5.0V, -5dBm, 0dBm, 3500MHz, 3200MHz, 300MHz. parameters guaranteed design characterization, unless otherwise noted.) (Note PARAMETER RF-to-IF Isolation Leakage Port Leakage Port Leakage Port SYMBOL CONDITIONS 3500MHz, +3dBm (Note 2800MHz 3600MHz, +3dBm (Note +3dBm +3dBm (Note 29.5 UNITS
3.3V SUPPLY ELECTRICAL CHARACTERISTICS-fRF 3100MHz 3900MHz, LOW-SIDE INJECTION
(Typical Application Circuit, with tuning elements outlined Table 845, 1.1k, ports driven from sources, fLO. Typical values +25NC, 3.3V, -5dBm, 0dBm, 3500MHz, 3200MHz, 300MHz, unless otherwise noted.) (Note PARAMETER Small-Signal Conversion Gain Gain Variation Frequency Conversion Gain Temperature Coefficient Input Compression Point Third-Order Input Intercept Point IIP3 Variation with Single-Sideband Noise Figure Noise Figure Temperature Coefficient Spur Rejection Spur Rejection Input Return Loss Input Return Loss Output Impedance NFSSB TCNF RLRF RLLO SYMBOL TCCG IP1dB IIP3 3100MHz 3900MHz, 100MHz band 3100MHz 3900MHz, -40NC +85NC (Note fRF1 fRF2 1MHz, PRF1 PRF2 -5dBm/tone fRF1 fRF2 1MHz, PRF1 PRF2 -5dBm/tone, -40NC +85NC blockers present Single sideband, blockers present, -40NC +85NC fSPUR 150MHz fSPUR 100MHz -10dBm -5dBm -10dBm -5dBm CONDITIONS 0.15 -0.01 20.1 Q0.2 0.018 UNITS dB/NC dB/NC
terminated into matched impedance terminated into matched impedance Nominal differential impedance IC's outputs
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
3.3V SUPPLY ELECTRICAL CHARACTERISTICS-fRF 3100MHz 3900MHz, LOW-SIDE INJECTION (continued)
(Typical Application Circuit, with tuning elements outlined Table 845, 1.1k, ports driven from sources, fLO. Typical values +25NC, 3.3V, -5dBm, 0dBm, 3500MHz, 3200MHz, 300MHz, unless otherwise noted.) (Note PARAMETER SYMBOL CONDITIONS terminated into 50I, 450MHz, 120nH driven source, transformed using 350MHz, external components shown 270nH Typical Application Circuit. Typical 300MHz, Operating Characteristics performance inductor 390nH values. 3100MHz 3900MHz, +3dBm 2800MHz 3600MHz, +3dBm 2800MHz 3600MHz, +3dBm 2800MHz 3600MHz, +3dBm UNITS
MAX19998
Output Return Loss
RLIF
RF-to-IF Isolation Leakage Port Leakage Port Leakage Port
-26.5 -27.5
5.0V SUPPLY ELECTRICAL CHARACTERISTICS-fRF 3100MHz 3900MHz, HIGH-SIDE INJECTION
(Typical Application Circuit, with tuning elements outlined Table 698, 604, 4.75V 5.25V, ports driven from sources, -3dBm +3dBm, -5dBm, 3100MHz 3900MHz, 300MHz, 3400MHz 4200MHz, fLO, -40NC +85NC. Typical values +25NC, 5.0V, -5dBm, 0dBm, 3500MHz, 3800MHz, 300MHz, unless otherwise noted.) (Note PARAMETER Small-Signal Conversion Gain SYMBOL +25NC 3100MHz 3900MHz, 100MHz band 3100MHz 3900MHz, 200MHz band 3100MHz 3900MHz, -40NC +85NC (Note fRF1 fRF2 1MHz, PRF1 PRF2 -5dBm/tone, +25NC 3100MHz 3900MHz, fRF1 fRF2 1MHz, PRF1 PRF2 -5dBm/tone, -40NC +85NC NFSSB TCNF blockers present Single sideband, blockers present, -40NC +85NC fSPUR 150MHz fSPUR 100MHz -10dBm -5dBm -10dBm -5dBm CONDITIONS 0.15 -0.01 11.4 24.8 Q0.2 0.018 dB/NC dB/NC UNITS
Gain Variation Frequency
Conversion Gain Temperature Coefficient Input Compression Point Third-Order Input Intercept Point IIP3 Variation with Single-Sideband Noise Figure Noise Figure Temperature Coefficient Spur Rejection Spur Rejection
TCCG IP1dB IIP3
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
5.0V SUPPLY ELECTRICAL CHARACTERISTICS-fRF 3100MHz 3900MHz, HIGH-SIDE INJECTION (continued)
(Typical Application Circuit, with tuning elements outlined Table 698, 604, 4.75V 5.25V, ports driven from sources, -3dBm +3dBm, -5dBm, 3100MHz 3900MHz, 300MHz, 3400MHz 4200MHz, fLO, -40NC +85NC. Typical values +25NC, 5.0V, -5dBm, 0dBm, 3500MHz, 3800MHz, 300MHz, unless otherwise noted.) (Note PARAMETER Input Return Loss Input Return Loss Output Impedance SYMBOL RLRF RLLO CONDITIONS terminated into matched impedance terminated into matched impedance Nominal differential impedance IC's outputs terminated into 50I, driven source, transformed using external components shown Typical Application Circuit. Typical Operating Characteristics performance inductor values. +3dBm +3dBm +3dBm +3dBm 450MHz, 120nH 350MHz, 270nH 300MHz, 390nH UNITS
Output Return Loss
RLIF
RF-to-IF Isolation Leakage Port Leakage Port Leakage Port
-30.3
5.0V SUPPLY ELECTRICAL CHARACTERISTICS-fRF 2300MHz 2900MHz, HIGH-SIDE INJECTION
(Typical Application Circuit, with tuning elements outlined Table 698, 604, 4.75V 5.25V, ports driven from sources, -3dBm +3dBm, -5dBm, 2300MHz 2900MHz, 300MHz, 2600MHz 3200MHz, fLO, -40NC +85NC. Typical values +25NC, 5.0V, -5dBm, 0dBm, 2600MHz, 2900MHz, 300MHz, unless otherwise noted.) (Note PARAMETER Small-Signal Conversion Gain SYMBOL +25NC 2300MHz 2900MHz, 100MHz band 2300MHz 2900MHz, 200MHz band 2300MHz 2900MHz, -40NC +85NC (Note fRF1 fRF2 1MHz, PRF1 PRF2 -5dBm/tone, +25NC CONDITIONS 0.15 -0.01 11.4 25.0 dB/NC UNITS
Gain Variation Frequency
Conversion Gain Temperature Coefficient Input Compression Point Third-Order Input Intercept Point
TCCG IP1dB IIP3
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
5.0V SUPPLY ELECTRICAL CHARACTERISTICS-fRF 2300MHz 2900MHz, HIGH-SIDE INJECTION (continued)
(Typical Application Circuit, with tuning elements outlined Table 698, 604, 4.75V 5.25V, ports driven from sources, -3dBm +3dBm, -5dBm, 2300MHz 2900MHz, 300MHz, 2600MHz 3200MHz, fLO, -40NC +85NC. Typical values +25NC, 5.0V, -5dBm, 0dBm, 2600MHz, 2900MHz, 300MHz, unless otherwise noted. (Note PARAMETER IIP3 Variation with Single-Sideband Noise Figure Noise Figure Temperature Coefficient Spur Rejection Spur Rejection Input Return Loss Input Return Loss Output Impedance NFSSB TCNF RLRF RLLO SYMBOL CONDITIONS 2300MHz 2900MHz, fRF1 fRF2 1MHz, PRF1 PRF2 -5dBm/tone, -40NC +85NC blockers present Single sideband, blockers present, -40NC +85NC fSPUR 50MHz fSPUR 100MHz -10dBm -5dBm -10dBm -5dBm Q0.2 10.0 0.018 300MHz, 390nH UNITS dB/NC
MAX19998
terminated into matched impedance terminated into matched impedance Nominal differential impedance IC's outputs terminated into 50I, driven source, transformed using external components shown Typical Application Circuit. Typical Operating Characteristics performance inductor values. +3dBm +3dBm +3dBm +3dBm 450MHz, 120nH 350MHz, 270nH
Output Return Loss
RLIF
RF-to-IF Isolation Leakage Port Leakage Port Leakage Port Note Note
-28.8 -42.3 -26.3
production tested. Operation outside this range possible, with degraded performance some parameters. Typical Operating Characteristics. Note limits reflect losses external components, including 0.8dB loss 300MHz impedance transformer. Output measurements were taken outputs Typical Application Circuit. Note Guaranteed design characterization. Note 100% production tested functional performance. Note Maximum reliable continuous input power applied port this device +12dBm from source. Note Measured with external source noise filtered that noise floor -174dBm/Hz. This specification reflects effects degradations mixer including noise, defined Application Note 2021: Specifications Measurement Local Oscillator Noise Integrated Circuit Base Station Mixers.
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Typical Operating Characteristics
(Typical Application Circuit with tuning elements outlined Table 5.0V, 3100MHz 3900MHz, low-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
CONVERSION GAIN FREQUENCY
MAX19998 toc01
CONVERSION GAIN FREQUENCY
MAX19998 toc02
CONVERSION GAIN FREQUENCY
MAX19998 toc03
CONVERSION GAIN (dB) 3000 3200 3400 3600 3800
CONVERSION GAIN (dB)
CONVERSION GAIN (dB)
-40°C +25°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
+85°C
4000
3000
3200
3400
3600
3800
4000
3000
3200
3400
3600
3800
4000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
INPUT FREQUENCY
MAX19998 toc04
INPUT FREQUENCY
MAX19998 toc05
INPUT FREQUENCY
-5dBm/TONE 5.25V
INPUT (dBm)
MAX19998 toc06 MAX19998 toc09
-5dBm/TONE +25°C
-5dBm/TONE
INPUT (dBm)
INPUT (dBm)
+85°C
-40°C
-3dBm, 0dBm, +3dBm
5.0V
4.75V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
RESPONSE FREQUENCY
MAX19998 toc07
RESPONSE FREQUENCY
-5dBm
MAX19998 toc08
RESPONSE FREQUENCY
-5dBm
-5dBm
RESPONSE (dBc)
RESPONSE (dBc)
RESPONSE (dBc)
+85°C +25°C
+3dBm
0dBm -40°C
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz) 3000 3200 3400
-3dBm
3600 3800 4000 3000
4.75V, 5.0V, 5.25V
3200 3400 3600 3800 4000
FREQUENCY (MHz)
FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 3100MHz 3900MHz, low-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
RESPONSE FREQUENCY
MAX19998 toc10
MAX19998
RESPONSE FREQUENCY
MAX19998 toc11
RESPONSE FREQUENCY
-5dBm
MAX19998 toc12 MAX19998 toc18 MAX19998 toc15
-5dBm
-5dBm
RESPONSE (dBc)
RESPONSE (dBc)
RESPONSE (dBc)
-40°C, +25°C, +85°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
NOISE FIGURE FREQUENCY
MAX19998 toc13
NOISE FIGURE FREQUENCY
MAX19998 toc14
NOISE FIGURE FREQUENCY
NOISE FIGURE (dB)
NOISE FIGURE (dB)
NOISE FIGURE (dB)
+85°C
+25°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
-40°C
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz) 3000 3200 3400 3600 3800 4000 FREQUENCY (MHz) 3000 3200 3400 3600 3800 4000
FREQUENCY (MHz)
INPUT P1dB FREQUENCY
+85°C
INPUT P1dB (dBm)
MAX19998 toc16
INPUT P1dB FREQUENCY
MAX19998 toc17
INPUT P1dB FREQUENCY
INPUT P1dB (dBm)
INPUT P1dB (dBm)
5.0V
5.25V
-40°C
+25°C
-3dBm, 0dBm, +3dBm
4.75V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 3100MHz 3900MHz, low-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
LEAKAGE PORT FREQUENCY
MAX19998 toc19
LEAKAGE PORT FREQUENCY
MAX19998 toc20
LEAKAGE PORT FREQUENCY
MAX19998 toc21
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
+85°C
LEAKAGE PORT (dBm)
+25°C -40°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
2700 2900 3100 3300 3500 3700 FREQUENCY (MHz)
2700 2900 3100 3300 3500 3700 FREQUENCY (MHz)
2700 2900 3100 3300 3500 3700 FREQUENCY (MHz)
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc22
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc23
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc24
RF-TO-IF ISOLATION (dB)
RF-TO-IF ISOLATION (dB)
+85°C
RF-TO-IF ISOLATION (dB)
+25°C
-40°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
LEAKAGE PORT FREQUENCY
MAX19998 toc25
LEAKAGE PORT FREQUENCY
MAX19998 toc26
LEAKAGE PORT FREQUENCY
MAX19998 toc27
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
-40°C
+85°C +25°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 3100MHz 3900MHz, low-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
LEAKAGE PORT FREQUENCY
MAX19998 toc28
MAX19998
LEAKAGE PORT FREQUENCY
MAX19998 toc29
LEAKAGE PORT FREQUENCY
MAX19998 toc30
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
+25°C -40°C
+85°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 2500 3000 3500 4000 FREQUENCY (MHz) FREQUENCY (MHz)
PORT RETURN LOSS FREQUENCY
MAX19998 toc31
PORT RETURN LOSS FREQUENCY
3600MHz
MAX19998 toc32
300MHz
PORT RETURN LOSS (dB)
PORT RETURN LOSS (dB)
4.75V, 5.0V, 5.25V
-3dBm, 0dBm, +3dBm
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
FREQUENCY (MHz)
PORT RETURN LOSS FREQUENCY
MAX19998 toc33
SUPPLY CURRENT TEMPERATURE (TC)
MAX19998 toc34
SUPPLY CURRENT (mA)
PORT RETURN LOSS (dB)
5.25V
-3dBm
5.0V
0dBm
4.75V
+3dBm
2600 2950 3300 3650 4000 FREQUENCY (MHz)
TEMPERATURE (°C)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 3.3V, 3100MHz 3900MHz, low-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
CONVERSION GAIN FREQUENCY
MAX19998 toc35
CONVERSION GAIN FREQUENCY
MAX19998 toc36
CONVERSION GAIN FREQUENCY
MAX19998 toc37
-40NC CONVERSION GAIN (dB) 3.3V
3.3V CONVERSION GAIN (dB)
+25NC
-3dBm, 0dBm, +3dBm
CONVERSION GAIN (dB)
3.0V, 3.3V, 3.6V
+85NC
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
INPUT FREQUENCY
MAX19998 toc38
INPUT FREQUENCY
MAX19998 toc39
INPUT FREQUENCY
-5dBm/TONE
MAX19998 toc40
3.3V -5dBm/TONE +85NC
3.3V -5dBm/TONE
INPUT (dBm)
INPUT (dBm)
INPUT (dBm)
3.6V
3.3V
+25NC -40NC
-3dBm, 0dBm, +3dBm
3.0V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
RESPONSE FREQUENCY
MAX19998 toc41
RESPONSE FREQUENCY
MAX19998 toc42
RESPONSE FREQUENCY
-5dBm RESPONSE (dBc) 3.0V, 3.3V, 3.6V
MAX19998 toc43
3000 3200 3400 3600 -40NC +25NC +85NC
3.3V -5dBm
0dBm 3.3V -5dBm
RESPONSE (dBc)
RESPONSE (dBc)
+3dBm
-3dBm
3800
4000
3000
3200
3400
3600
3800
4000
3000
3200
3400
3600
3800
4000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 3.3V, 3100MHz 3900MHz, low-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
RESPONSE FREQUENCY
MAX19998 toc44
MAX19998
RESPONSE FREQUENCY
MAX19998 toc45
RESPONSE FREQUENCY
-5dBm RESPONSE (dBc) 3.0V 3.6V
MAX19998 toc46
3000 3200 3400 3600
3.3V -5dBm
3.3V -5dBm
RESPONSE (dBc)
-40°C, +25°C, +85°C
RESPONSE (dBc)
-3dBm, 0dBm, +3dBm
3.3V
3800
4000
3000
3200
3400
3600
3800
4000
3000
3200
3400
3600
3800
4000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
NOISE FIGURE FREQUENCY
MAX19998 toc47
NOISE FIGURE FREQUENCY
MAX19998 toc48
NOISE FIGURE FREQUENCY
MAX19998 toc49
3.3V NOISE FIGURE (dB) 3000 3200 3400 3600 3800 +85NC
3.3V NOISE FIGURE (dB) -3dBm, 0dBm, +3dBm
NOISE FIGURE (dB) 3.0V, 3.3V, 3.6V
+25NC
-40NC
4000
3000
3200
3400
3600
3800
4000
3000
3200
3400
3600
3800
4000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
INPUT P1dB FREQUENCY
MAX19998 toc50
INPUT P1dB FREQUENCY
MAX19998 toc51
INPUT P1dB FREQUENCY
MAX19998 toc52
+85NC INPUT P1dB (dBm) 3.3V
3.3V
3.6V INPUT P1dB (dBm)
INPUT P1dB (dBm)
-40NC
+25NC
-3dBm, 0dBm, +3dBm
3.3V
3.0V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 3.3V, 3100MHz 3900MHz, low-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
LEAKAGE PORT FREQUENCY
MAX19998 toc53
LEAKAGE PORT FREQUENCY
MAX19998 toc54
LEAKAGE PORT FREQUENCY
MAX19998 toc55
3.3V LEAKAGE PORT (dBm)
3.3V LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
3.6V
-40°C, +25°C, +85°C
-3dBm, 0dBm, +3dBm
3.3V 3.0V
2700 2900 3100 3300 3500 3700 FREQUENCY (MHz)
2700 2900 3100 3300 3500 3700 FREQUENCY (MHz)
2700 2900 3100 3300 3500 3700 FREQUENCY (MHz)
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc56
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc57
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc58
3.3V RF-TO-IF ISOLATION (dB) +85NC +25NC -40NC
3.3V RF-TO-IF ISOLATION (dB)
-3dBm, 0dBm, +3dBm
RF-TO-IF ISOLATION (dB)
3.0V, 3.3V, 3.6V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
LEAKAGE PORT FREQUENCY
MAX19998 toc59
LEAKAGE PORT FREQUENCY
MAX19998 toc60
LEAKAGE PORT FREQUENCY
MAX19998 toc61
3.3V LEAKAGE PORT (dBm) -40°C, +25°C, +85°C
3.3V LEAKAGE PORT (dBm) -3dBm, 0dBm, +3dBm
LEAKAGE PORT (dBm)
3.6V 3.3V 3.0V
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 3.3V, 3100MHz 3900MHz, low-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
LEAKAGE PORT FREQUENCY
MAX19998 toc62
MAX19998
LEAKAGE PORT FREQUENCY
MAX19998 toc63
LEAKAGE PORT FREQUENCY
MAX19998 toc64
3.3V LEAKAGE PORT (dBm) -40NC +25NC
3.3V LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
3.0V 3.3V 3.6V
+85NC
-3dBm, 0dBm, +3dBm
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 FREQUENCY (MHz)
PORT RETURN LOSS FREQUENCY
MAX19998 toc65
3.3V 300MHz PORT RETURN LOSS (dB) -3dBm, 0dBm, +3dBm
3600MHz PORT RETURN LOSS (dB) 3.0V, 3.3V, 3.6V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
FREQUENCY (MHz)
PORT RETURN LOSS FREQUENCY
MAX19998 toc67
3.3V PORT RETURN LOSS (dB)
3.6V SUPPLY CURRENT (mA)
-3dBm 0dBm
+3dBm 2600 2950 3300 3650 4000 FREQUENCY (MHz)
3.3V 3.0V
TEMPERATURE (°C)
MAX19998 toc68
SUPPLY CURRENT TEMPERATURE (TC)
MAX19998 toc66
PORT RETURN LOSS FREQUENCY
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 3100MHz 3900MHz, high-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
CONVERSION GAIN FREQUENCY
MAX19998 toc69
CONVERSION GAIN FREQUENCY
MAX19998 toc70
CONVERSION GAIN FREQUENCY
MAX19998 toc71
CONVERSION GAIN (dB) 3000 3200 3400 3600 3800
CONVERSION GAIN (dB)
CONVERSION GAIN (dB)
-40°C +25°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
+85°C
4000
3000
3200
3400
3600
3800
4000
3000
3200
3400
3600
3800
4000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
INPUT FREQUENCY
MAX19998 toc72
INPUT FREQUENCY
MAX19998 toc73
INPUT FREQUENCY
-5dBm/TONE 5.25V
INPUT (dBm)
MAX19998 toc74 MAX19998 toc77
-5dBm/TONE +85°C +25°C
-5dBm/TONE
INPUT (dBm)
INPUT (dBm)
-40°C
-3dBm, 0dBm, +3dBm
5.0V
4.75V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
RESPONSE FREQUENCY
MAX19998 toc75
RESPONSE FREQUENCY
-5dBm
MAX19998 toc76
RESPONSE FREQUENCY
-5dBm
-5dBm
RESPONSE (dBc)
RESPONSE (dBc)
RESPONSE (dBc)
+85°C
+3dBm
+25°C
-3dBm 0dBm
-40°C
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz) 3000
4.75V, 5.0V, 5.25V
3200 3400 3600 3800 4000 3000 3200 3400 3600 3800 4000 FREQUENCY (MHz) FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 3100MHz 3900MHz, high-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
RESPONSE FREQUENCY
MAX19998 toc78
MAX19998
RESPONSE FREQUENCY
MAX19998 toc79
RESPONSE FREQUENCY
-5dBm
MAX19998 toc80
-5dBm +85°C
-5dBm
RESPONSE (dBc)
RESPONSE (dBc)
RESPONSE (dBc)
+25°C -40°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
NOISE FIGURE FREQUENCY
MAX19998 toc81
NOISE FIGURE FREQUENCY
MAX19998 toc82
NOISE FIGURE FREQUENCY
MAX19998 toc83
NOISE FIGURE (dB)
NOISE FIGURE (dB)
NOISE FIGURE (dB)
+85°C +25°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
-40°C
3000 3175 3350 3525 3700 FREQUENCY (MHz) 3000 3175 3350 3525 3700 FREQUENCY (MHz) 3000 3175 3350 3525 3700
FREQUENCY (MHz)
INPUT P1dB FREQUENCY
MAX19998 toc84
INPUT P1dB FREQUENCY
MAX19998 toc85
INPUT P1dB FREQUENCY
5.25V
MAX19998 toc86
+85°C
INPUT P1dB (dBm)
INPUT P1dB (dBm)
INPUT P1dB (dBm)
5.0V
+25°C
-3dBm, 0dBm, +3dBm
4.75V
-40°C
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 3100MHz 3900MHz, high-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
LEAKAGE PORT FREQUENCY
MAX19998 toc87
LEAKAGE PORT FREQUENCY
MAX19998 toc88
LEAKAGE PORT FREQUENCY
MAX19998 toc89
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
+25°C
LEAKAGE PORT (dBm)
-40°C
+85°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
3000 3500 3700 3900 4100 4300 FREQUENCY (MHz)
3000 3500 3700 3900 4100 4300 FREQUENCY (MHz)
3000 3500 3700 3900 4100 4300 FREQUENCY (MHz)
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc90
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc91
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc92
RF-TO-IF ISOLATION (dB)
RF-TO-IF ISOLATION (dB)
+85°C
RF-TO-IF ISOLATION (dB)
+25°C
-40°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
LEAKAGE PORT FREQUENCY
MAX19998 toc93
LEAKAGE PORT FREQUENCY
MAX19998 toc94
LEAKAGE PORT FREQUENCY
MAX19998 toc95
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
+85°C
+25°C
-40°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
3300 3550 3800 4050 4300 FREQUENCY (MHz)
3300 3550 3800 4050 4300 FREQUENCY (MHz)
3300 3550 3800 4050 4300 FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 3100MHz 3900MHz, high-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
LEAKAGE PORT FREQUENCY
MAX19998 toc96
MAX19998
LEAKAGE PORT FREQUENCY
MAX19998 toc97
LEAKAGE PORT FREQUENCY
MAX19998 toc98
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
-40°C +85°C +25°C
+3dBm
-3dBm
4.75V, 5.0V, 5.25V
0dBm
3300 3550 3800 4050 4300 FREQUENCY (MHz)
3300 3550 3800 4050 4300 FREQUENCY (MHz)
3300 3550 3800 4050 4300 FREQUENCY (MHz)
PORT RETURN LOSS FREQUENCY
300MHz
MAX19998 toc99
PORT RETURN LOSS FREQUENCY
4100MHz
PORT RETURN LOSS (dB)
MAX19998 toc100
PORT RETURN LOSS (dB)
4.75V, 5.0V, 5.25V
-3dBm, 0dBm, +3dBm
3000 3200 3400 3600 3800 4000 FREQUENCY (MHz)
FREQUENCY (MHz)
PORT RETURN LOSS FREQUENCY
MAX19998 toc101
SUPPLY CURRENT TEMPERATURE (TC)
MAX19998 toc102
SUPPLY CURRENT (mA)
PORT RETURN LOSS (dB)
5.25V
-3dBm
5.0V
0dBm
4.75V
+3dBm
2700 3100 3500 3900 4300 FREQUENCY (MHz)
TEMPERATURE (°C)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 2300MHz 2900MHz, high-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
CONVERSION GAIN FREQUENCY
MAX19998 toc103
CONVERSION GAIN FREQUENCY
MAX19998 toc104
CONVERSION GAIN FREQUENCY
MAX19998 toc105
CONVERSION GAIN (dB) 2300 2450 2600 2750 -40°C +25°C
CONVERSION GAIN (dB) -3dBm, 0dBm, +3dBm
CONVERSION GAIN (dB) 4.75V, 5.0V, 5.25V
+85°C
2900
2300
2450
2600
2750
2900
2300
2450
2600
2750
2900
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
INPUT FREQUENCY
MAX19998 toc106
INPUT FREQUENCY
MAX19998 toc107
INPUT FREQUENCY
-5dBm/TONE INPUT (dBm) 5.25V 5.0V 4.75V
MAX19998 toc108
-5dBm/TONE INPUT (dBm) +85°C
-5dBm/TONE INPUT (dBm)
+25°C
-3dBm, 0dBm, +3dBm
-40°C
2300 2450 2600 2750 2900 FREQUENCY (MHz)
2300 2450 2600 2750 2900 FREQUENCY (MHz)
2300 2450 2600 2750 2900 FREQUENCY (MHz)
RESPONSE FREQUENCY
MAX19998 toc109
RESPONSE FREQUENCY
MAX19998 toc110
RESPONSE FREQUENCY
-5dBm RESPONSE (dBc) 4.75V
MAX19998 toc111
+85NC RESPONSE (dBc) -5dBm
-5dBm RESPONSE (dBc) +3dBm
-40NC
-3dBm 0dBm
5.25V 5.0V
+25NC
2300 2450 2600 2750 2900 FREQUENCY (MHz)
2300 2450 2600 2750 2900 FREQUENCY (MHz)
2300 2450 2600 2750 2900 FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 2300MHz 2900MHz, high-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
RESPONSE FREQUENCY
MAX19998 toc112
MAX19998
RESPONSE FREQUENCY
MAX19998 toc113
RESPONSE FREQUENCY
-5dBm RESPONSE (dBc)
MAX19998 toc114
-5dBm RESPONSE (dBc) +85NC
-5dBm RESPONSE (dBc)
-40NC
+25NC
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
2300 2450 2600 2750 2900 FREQUENCY (MHz)
2300 2450 2600 2750 2900 FREQUENCY (MHz)
2300 2450 2600 2750 2900 FREQUENCY (MHz)
NOISE FIGURE FREQUENCY
MAX19998 toc115
NOISE FIGURE FREQUENCY
MAX19998 toc116
NOISE FIGURE FREQUENCY
MAX19998 toc117
NOISE FIGURE (dB) -40NC 2300 2450 2600 2750 +85NC
NOISE FIGURE (dB)
NOISE FIGURE (dB) 4.75V 5.25V 5.0V
+25NC
-3dBm, 0dBm, +3dBm
2900
2300
2450
2600
2750
2900
2300
2450
2600
2750
2900
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
INPUT P1dB FREQUENCY
MAX19998 toc118
INPUT P1dB FREQUENCY
MAX19998 toc119
INPUT P1dB FREQUENCY
5.25V
MAX19998 toc120
+85NC
5.0V
INPUT P1dB (dBm)
INPUT P1dB (dBm)
INPUT P1dB (dBm)
-40NC
+25NC
-3dBm, 0dBm, +3dBm
4.75V
2300 2450 2600 2750 2900 FREQUENCY (MHz)
2300 2450 2600 2750 2900 FREQUENCY (MHz)
2300 2450 2600 2750 2900 FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 2300MHz 2900MHz, high-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
LEAKAGE PORT FREQUENCY
MAX19998 toc121
LEAKAGE PORT FREQUENCY
MAX19998 toc122
LEAKAGE PORT FREQUENCY
MAX19998 toc123
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
+85°C
+25°C
LEAKAGE PORT (dBm)
-40°C
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
2600 2750 2900 3050 3200 FREQUENCY (MHz)
2600 2750 2900 3050 3200 FREQUENCY (MHz)
2600 2750 2900 3050 3200 FREQUENCY (MHz)
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc124
RF-TO-IF ISOLATION FREQUENCY
MAX19998 toc125
RF-TO-IF ISOLATION FREQUENCY
5.25V RF-TO-IF ISOLATION (dB) 5.0V
MAX19998 toc126
RF-TO-IF ISOLATION (dB)
RF-TO-IF ISOLATION (dB)
+85NC
+25NC -40NC
-3dBm, 0dBm, +3dBm
4.75V
2300 2450 2600 2750 2900 FREQUENCY (MHz)
2300 2450 2600 2750 2900 FREQUENCY (MHz)
2300 2450 2600 2750 2900 FREQUENCY (MHz)
LEAKAGE PORT FREQUENCY
MAX19998 toc127
LEAKAGE PORT FREQUENCY
MAX19998 toc128
LEAKAGE PORT FREQUENCY
MAX19998 toc129
LEAKAGE PORT (dBm) -40NC
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
+25NC +85NC
-3dBm, 0dBm, +3dBm
4.75V, 5.0V, 5.25V
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 FREQUENCY (MHz)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
Typical Operating Characteristics (continued)
(Typical Application Circuit with tuning elements outlined Table 5.0V, 2300MHz 2900MHz, high-side injected 300MHz -5dBm, 0dBm, +25NC, unless otherwise noted.)
LEAKAGE PORT FREQUENCY
MAX19998 toc130
MAX19998
LEAKAGE PORT FREQUENCY
MAX19998 toc131
LEAKAGE PORT FREQUENCY
MAX19998 toc132
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
LEAKAGE PORT (dBm)
-40NC
+3dBm
4.75V
5.0V
+25NC +85NC
0dBm -3dBm
5.25V
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 FREQUENCY (MHz)
2500 3000 3500 4000 FREQUENCY (MHz)
PORT RETURN LOSS FREQUENCY
MAX19998 toc133
PORT RETURN LOSS FREQUENCY
3000MHz PORT RETURN LOSS (dB) 4.75V, 5.0V, 5.25V
MAX19998 toc134
300MHz PORT RETURN LOSS (dB)
-3dBm, 0dBm, +3dBm 2300 2450 2600 2750 2900 FREQUENCY (MHz)
FREQUENCY (MHz)
PORT RETURN LOSS FREQUENCY
MAX19998 toc135
SUPPLY CURRENT TEMPERATURE (TC)
MAX19998 toc136
SUPPLY CURRENT (mA)
PORT RETURN LOSS (dB)
5.25V
-3dBm
5.0V
4.75V
0dBm +3dBm
2600 2950 3300 3650 4000 FREQUENCY (MHz)
TEMPERATURE (°C)
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Configuration/Functional Diagram
IFBIAS
VIEW
LEXT
MAX19998
LOBIAS
Description
NAME LOBIAS LEXT IF-, IFBIAS FUNCTION Power Supply. Bypass with 0.01FF capacitors close possible pin. Single-Ended Input. Internally matched shorted through balun. Provide input DC-blocking capacitor required. Ground. internally connected. Pins grounded. Ground. Internally connected exposed pad. Connect ground pins exposed (EP) together. Amplifier Bias Control. Output bias resistor buffer. Connect 604I (5V, 230mA bias condition) from LOBIAS ground. Local Oscillator Input. This input internally matched 50I. Requires input DC-blocking capacitor. External Inductor Connection. Connect low-ESR 4.7nH inductor from this ground increase RF-to-IF LO-to-IF isolation. Connect this directly ground reduce component count expense reduced RF-to-IF LO-to-IF isolation. Mixer Differential Output. Connect pullup inductors from each these pins (see Typical Application Circuit). Amplifier Bias Control. bias resistor connection amplifier. Connect 698I (5V, 230mA bias condition) from IFBIAS GND. Exposed Pad. Internally connected GND. Solder this exposed that uses multiple ground vias provide heat transfer device into ground planes. These multiple grounds also required achieve noted performance.
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
Detailed Description
MAX19998 provides high linearity noise figure multitude 2300MHz 4000MHz WiMAX, LTE, MMDS base-station applications. This device operates over 2600MHz 4300MHz range 50MHz 500MHz range. Integrated baluns matching circuitry allow single-ended interfaces ports. integrated buffer provides high drive level mixer core, reducing drive required MAX19998's input range -3dBm +3dBm. port incorporates differential output, which ideal providing enhanced performance. MAX19998 input provides match when combined with series DC-blocking capacitor. This DC-blocking capacitor required input internally shorted ground through on-chip balun. When using 8.2pF DC-blocking capacitor, port input return loss typically 17dB over frequency range 3200MHz 3900MHz. Table lower band tuning. input internally matched 50I, requiring only DC-blocking capacitor. two-stage internal buffer allows -3dBm +3dBm input power range. on-chip low-loss balun, along with buffer, drives double-balanced mixer. interfacing matching components from inputs outputs integrated on-chip. core MAX19998 double-balanced, highperformance passive mixer. Exceptional linearity provided large swing from on-chip buffer. When combined with integrated amplifier, IIP3, rejection, noise-figure performance typically +24.3dBm, 67dBc, 9.7dB, respectively, low-side injection architectures covering 3000MHz 4000MHz band. MAX19998 50MHz 500MHz frequency range, where low-end frequency depends frequency response external components. MAX19998 mixer tuned 300MHz using 390nH external pullup bias inductors. Lower frequencies would require higher inductor values maintain good match. differential, open-collector output ports require that these inductors connected VCC. Note that these differential ports ideal providing enhanced performance. Single-ended applications require (impedance ratio) balun transform 200I differential impedance single-ended system. TC4-1W-17 transformer frequencies above 200MHz TC4-1W-7A transformer frequencies below 200MHz. user differential amplifier filter mixer port, block required both IF+/ ports keep external from entering ports mixer.
MAX19998
Input Balun
Applications Information
inputs provide matches when combined with proper tuning. 8.2pF capacitor value port frequencies ranging from 3000MHz 4000MHz. 3.3nH series inductor 0.3pF shunt capacitor port frequencies ranging from 2300MHz 2900MHz. port, DC-blocking capacitor cover operations spanning 2600MHz 4300MHz range. output impedance 200I (differential). evaluation, external low-loss (impedance ratio) balun transforms this impedance down single-ended output (see Typical Application Circuit). MAX19998 pins (LOBIAS, IFBIAS) that allow external resistors internal bias currents. Table nominal values these resistors. Larger value resistors used reduce power dissipation expense some performance loss. resistors readily available, substitute with resistors. Significant reductions power consumption also realized operating mixer with optional supply voltage 3.3V. Doing reduces overall power consumption (typ). 3.3V Supply Electrical Characteristics table relevant 3.3V curves Typical Operating Characteristics section evaluate power performance trade-offs.
Input Output Matching
Inputs, Buffer, Balun
High-Linearity Mixer
Reduced-Power Mode
Differential Output Amplifier
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Short LEXT ground using resistor. applications requiring improved RF-to-IF LO-to-IF isolation, changed optimize performance (see Typical Operating Characteristics). However, load impedance presented mixer must such that capacitances from ground exceed several picofarads ensure stable operating conditions. Since approximately 120mA flows through LEXT, important low-DCR wire-wound inductor.
LEXT Inductor
properly designed essential part microwave circuit. Keep signal lines short possible reduce losses, radiation, inductance. load impedance presented mixer must such that capacitance from both ground
Layout Considerations
does exceed several picofarads. best performance, route ground traces directly exposed under package. exposed MUST connected ground plane PCB. suggested that multiple vias used connect this lower level ground planes. This method provides good RF/thermal-conduction path device. Solder exposed bottom device package PCB. MAX19998 evaluation used reference board layout. Gerber files available upon request www.maxim-ic.com. Proper voltage supply bypassing essential highfrequency circuit stability. Bypass each with capacitors shown Typical Application Circuit Table component values.
Power-Supply Bypassing
Table Component Values
DESIGNATION DESCRIPTION COMPONENT SUPPLIER 8.2pF microwave capacitor (0402). Murata Electronics North America, Inc. frequencies ranging from 3000MHz 4000MHz. 3.3nH microwave inductor (0402). Coilcraft, Inc. frequencies ranging from 2300MHz 2900MHz. 0.01FF microwave capacitors (0402) installed, capacitors microwave capacitor (0402) 1000pF microwave capacitors (0402) 82pF microwave capacitor (0402) installed frequencies ranging from 3000MHz 4000MHz Murata Electronics North America, Inc. Murata Electronics North America, Inc. Murata Electronics North America, Inc. Murata Electronics North America, Inc.
C13,
0.3pF microwave capacitor (0402). Murata Electronics North America, Inc. frequencies ranging from 2300MHz 2900MHz. 390nH wire-wound high-Q inductors* (0805) 4.7nH wire-wound high-Q inductor (0603) 698I resistor (0402). 5.0V applications. 845I resistor (0402). 3.3V applications. 604I resistor (0402). 5.0V applications. 1.1kI resistor (0402). 3.3V applications. resistor (1206) balun TC4-1W-17* MAX19998 Thin QFN-EP) Coilcraft, Inc. Coilcraft, Inc.
Digi-Key Corp.
Digi-Key Corp.
Digi-Key Corp. Mini-Circuits Maxim Integrated Products, Inc.
*Use larger value inductors TC4-1W-7A balun frequencies below 200MHz.
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer
exposed QFN-EP package path die. MAX19998
Exposed RF/Thermal Considerations
(EP) MAX19998's 20-pin thin provides thermal-resistance important that which mounted designed conduct
heat from addition, provide with lowinductance path electrical ground. MUST soldered ground plane PCB, either directly through array plated holes.
MAX19998
Typical Application Circuit
OUTPUT
IFBIAS IF+5.0V LEXT
MAX19998
INPUT
C16*
+5.0V
INPUT
LOBIAS
+5.0V
NOTE: PINS INTERNALLY CONNECTED EXPOSED GROUND PAD. CONNECT THESE PINS GROUND IMPROVE ISOLATION. PINS HAVE INTERNAL CONNECTION, EXTERNALLY GROUNDED IMPROVE ISOLATION. *C16 USED 3000MHz 4000MHz APPLICATIONS.
+5.0V
SiGe, High-Linearity, 2300MHz 4000MHz Downconversion Mixer with Buffer MAX19998
Chip Information
PROCESS: SiGe BiCMOS
Package Information
latest package outline information land patterns, www.maxim-ic.com/packages. Note that "+", "#", package code indicates RoHS status only. Package drawings show different suffix character, drawing pertains package regardless RoHS status.
PACKAGE TYPE Thin QFN-EP PACKAGE CODE T2055+3 DOCUMENT 21-0140
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2009 Maxim Integrated Products Maxim registered trademark Maxim Integrated Products, Inc.

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