Low-Power Narrowband Receiver includes dual conversion with oscil
|
|
|
Top Searches for this datasheet
Order this document MC3362/D
Low-Power Narrowband Receiver
includes dual conversion with oscillators, mixers, quadrature discriminator, meter drive/carrier detect circuitry. MC3362 also buffered first second local oscillator outputs comparator circuit detection. Complete Dual Conversion Circuitry
MC3362
LOW-POWER DUAL CONVERSION RECEIVER
SEMICONDUCTOR TECHNICAL DATA
Voltage: Drain Current (3.6 (Typical) Vdc) Excellent Sensitivity: Input Voltage µVrms (Typical) SINAD Externally Adjustable Carrier Detect Function Number External Parts Required Manufactured Using Motorolais MOSAICr Process Technology MC13135 Preferred Designs
SUFFIX PLASTIC PACKAGE CASE
SUFFIX PLASTIC PACKAGE CASE 751E (SO-24L)
Figure Connections Representative Block Diagram Figure Simplified Application Frequency Synthesized Receiver
Input
Mixer Input Output Emitter Mixer Input Varicap Control Tank Tank Output Mixer Output Mixer Input Mixer Input Comparator Output Comparator Input Detector Output
Figure
Input Match 0.01 10.245 Ceramic Filter MC3362 Carrier Detect Indicator 0.001 Recovered 0.01 Audio Data Prescaler Ceramic Filter 10.7 0.01 0.41 From Phase Detector
Base Mixer Output Limiter Input Limiter Decoupling Limiter Decoupling Meter Drive Carrier Detect Quadrature Coil
ORDERING INFORMATION
Device MC3362DW MC3362P Operating Temperature Range +85°C Package SO-24L Plastic
Motorola, Inc. 1996
MOTOROLA ANALOG DEVICE DATA
MC3362
MAXIMUM RATING 25°C, unless otherwise noted)
Rating Power Supply Voltage (See Figure Operating Supply Voltage Range (Recommended) Input Voltage (VCC Symbol VCC(max) V1-24 Tstg Value Unit Vrms
Vdc)
Junction Temperature Operating Ambient Temperature Range Storage Temperature Range
ELECTRICAL CHARACTERISTICS (VCC Vdc, 49.7 MHz, Deviation kHz, 25°C, Test Circuit Figure
unless otherwise noted) Characteristic Drain Current (Carrier Detect Figure Input Limiting Input SINAD (See Figure Series Equivalent Input Impedence Recovered Audio signal level Noise Output signal level Carrier Detect Threshold (below VCC) Meter Drive Slope Input N)/N (See Figure First Mixer Order Intercept (Input) First Mixer Input Resistance (Rp) First Mixer Input Capacitance (Cp) Conversion Voltage Gain, First Mixer Conversion Voltage Gain, Second Mixer Dector Output Resistance 450-j350 0.64 Units µVrms µVrms mVrms mVrms nA/dB µVrms
Input 10.245
Ferronics 12-345-K
Figure Test Circuit
MC3362
0.01 10.5 Turns Coilcraft UNI-10/142 FL1: muRata CFU455D Toko LFC-4551 FL2: muRata SFE10.7MA Toko SK107M3-A0-10
Toko RMC-2A6597HM
NOTE: AN980 Additional Design Information.
MOTOROLA ANALOG DEVICE DATA
MC3362
Figure Drain Current, Recovered Audio versus Supply
MC3362 (mA) Recovered Audio ICC, Carr. Det. ICC, Carr. Det. High (mVrms)
Figure IMeter versus Input
INPUT (dBm)
Figure Signal Levels
Input Transformer INPUT (dBm) First Mixer Input Second Mixer Output First Mixer Output Second Mixer Input (dB) POWER (dBm)
Figure versus Input
MC3362 0.01 0.01
INPUT (dBm)
Figure Mixer Order Intermodulation
INPUT (dBm) Desired Products Order Intermod. Products (Vdc)
Figure Detector Output versus Frequency
RELATIVE INPUT FREQUENCY (kHz)
MOTOROLA ANALOG DEVICE DATA
MC3362
Figure Board Test Circuit
Oscillator Configuration Used Synthesized Receiver)
Input 49.67
1000 0.47 0.001 0.01 CRF2 10.7 Cer. Filt. First Local Oscillator Buffered Output CRF1 muRata 455X suffix denotes bandwidth. Rout CRF2 muRata SFA10.7 SFE10.7 equivalent. Rout Crystal filters used impedance matching will need added ensure proper filter characteristics realized. Data Output (optional) Recovered Audio 0.01 0.01 0.41 Varactor Control (keep
VCC)
(This network must tuned exactly 10.7 above below incoming signal. NOTE: rolled above 10.7 reduce L.O. feedthrough.)
10.245, Fund. Mode Load Cer. Filt. CRF1
Adjust Carrier Detect
Resonator
(MC3362)
Figure 10A. Crystal Oscillator Configuration Single Channel Application
Crystal used series mode resonant load capacity specified), overtone. This method proven adequate fundamental mode, overtone crystals. inductor capacitor will need changed other frequency crystals. AN980 further information.
MC3362
0.68
0.68 38.97
MOTOROLA ANALOG DEVICE DATA
MC3362
Figure Component Placement View Showing Crystal Oscillator Circuit
Figure 11A. Oscillator Component View
120p 10.245MHz 455KHz
MC3362P
10.7
100K
L.O.OUT
.047
10.7MHz
CONTROL
METER DRIVE
DATA
REC. AUDIO
NOTES: Recovered Audio components deleted when using data output. Carrier Detect components must deleted order obtain linear Meter Drive output. With these components place Meter Drive outputs serve only trip Carrier Detect indicator. Data Output components should deleted applications where only audio modulation used. combined audio/data applications, 0.047 coupling capacitor will distortion audio, pull-down resistor required. Toko 7MC81282 Quadrature coil.
Meter Drive cannot used simultaneously with Carrier Detect output. analog meter drive, remove components labelled measure meter current (4-12 through ammeter VCC. Either type oscillator circuit used with output circuit configuration. Oscillator Coil: Coilcraft 10/42 10.5 turns, 0.41 Crystal Oscillator circuit: trim coil, 0.68 Coilcraft M1287-A. 0.47 Coilcraft M1286-A. Input network used match first mixer input impedance
CIRCUIT DESCRIPTION MC3362 complete narrowband receiver from antenna input audio preamp output. voltage dual conversion design yields power drain, excellent sensitivity good image rejection narrowband voice data link applications. typical application (Figure first mixer amplifies signal converts input 10.7 MHz. This signal filtered externally into second mixer, which further amplifies signal converts signal. After external bandpass filtering, into limiting amplifier detection circuitry. audio recovered using conventional quadrature detector. Twice-IF filtering provided internally. input signal level monitored meter drive circuitry which detects amount limiting limiting amplifier. voltage meter drive determines state carrier detect output, which active low.
APPLICATIONS INFORMATION first local oscillator using free-running tank, using synthesis, driven from external crystal oscillator. been MHz.* buffered output available second local oscillator common base Colpitts type which typically 10.245 under crystal control. buffered output available Pins interchangeable. mixers doubly balanced reduce spurious responses. first second mixers have conversion gains (typical), respectively, seen Figure Mixer gain stable with respect supply voltage. both conversions, mixer impedances layout designed allow user employ cost, readily available ceramic filters. Overall sensitivity rejection shown Figure input level N)/N using two-pole post-detection filter pictured.
first local oscillator (Pins and/or driven from strong external source (100 mVrms), mixer used over MHz.
MOTOROLA ANALOG DEVICE DATA
L.O.OUT
TOKO 55VLC06379GT
.047
CONTROL
INPUT
CARRIER DETECT
MC3362
Following first mixer, 10.7 ceramic band-pass filter recommended. 10.7 filtered signal then into second mixer input pin, other input being connected VCC. (VCC) treated common point emitter-driven signals. typically filtered using ceramic bandpass filter then into limiter input pin. limiter sensitivity limiting, flat MHz. output limiter internally connected quadrature detector, including quadrature capacitor. parallel tank needed externally from VCC. shunt resistance included which determines peak separation quadrature detector; smaller value will increase spacing linearity decrease recovered audio sensitivity. data shaping circuit available coupled recovered audio output circuit comparator which designed detect zero crossings modulation. Data rates typically limited 1200 baud ensure data integrity avoid adjacent channel "splatter." Hysteresis available connecting high valued resistor from Values below recommended input signal cannot overcome hysteresis. meter drive circuitry detects input signal level monitoring limiting amplifier stages. Figure shows unloaded current versus input power. meter drive current used directly (RSSI) used trip carrier detect circuit specified input power. this, pick trip level dBm. Read corresponding current from Figure pick resistor such that: 0.64 Hysteresis available connecting high valued resistor between Pins formula Hysteresis VCC/(RH
Figure Circuit Side View
MC3362P
REC. AUDIO
DATA
METER DRIVE
MOTOROLA ANALOG DEVICE DATA
CARRIER DETECT
INPUT
CONTROL L.O.
Figure Representative Schematic Diagram
MOTOROLA ANALOG DEVICE DATA
bias bias bias
bias
bias
MC3362
MC3362
OUTLINE DIMENSIONS
SUFFIX PLASTIC PACKAGE CASE 724-03 ISSUE
NOTES: CHAMFERED CONTOUR OPTIONAL. DIMENSION CENTER LEADS WHEN FORMED PARALLEL. DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: INCH. INCHES 1.230 1.265 0.250 0.270 0.145 0.175 0.015 0.020 0.050 0.040 0.060 0.100 0.007 0.012 0.110 0.140 0.300 0.020 0.040 MILLIMETERS 31.25 32.13 6.35 6.85 3.69 4.44 0.38 0.51 1.27 1.02 1.52 2.54 0.18 0.30 2.80 3.55 7.62 0.51 1.01
SEATING PLANE
NOTE
0.25 (0.010)
0.25 (0.010)
SUFFIX PLASTIC PACKAGE CASE 751E-04 (SO-24L) ISSUE
0.010 (0.25)
NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: MILLIMETER. DIMENSIONS INCLUDE MOLD PROTRUSION. MAXIMUM MOLD PROTRUSION 0.15 (0.006) SIDE. DIMENSION DOES INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL 0.13 (0.005) TOTAL EXCESS DIMENSION MAXIMUM MATERIAL CONDITION. MILLIMETERS 15.25 15.54 7.40 7.60 2.35 2.65 0.35 0.49 0.41 0.90 1.27 0.23 0.32 0.13 0.29 10.05 10.55 0.25 0.75 INCHES 0.601 0.612 0.292 0.299 0.093 0.104 0.014 0.019 0.016 0.035 0.050 0.009 0.013 0.005 0.011 0.395 0.415 0.010 0.029
0.010 (0.25)
SEATING PLANE
Motorola reserves right make changes without further notice products herein. Motorola makes warranty, representation guarantee regarding suitability products particular purpose, does Motorola assume liability arising application product circuit, specifically disclaims liability, including without limitation consequential incidental damages. "Typical" parameters which provided Motorola data sheets and/or specifications vary different applications actual performance vary over time. operating parameters, including "Typicals" must validated each customer application customer's technical experts. Motorola does convey license under patent rights rights others. Motorola products designed, intended, authorized components systems intended surgical implant into body, other applications intended support sustain life, other application which failure Motorola product could create situation where personal injury death occur. Should Buyer purchase Motorola products such unintended unauthorized application, Buyer shall indemnify hold Motorola officers, employees, subsidiaries, affiliates, distributors harmless against claims, costs, damages, expenses, reasonable attorney fees arising directly indirectly, claim personal injury death associated with such unintended unauthorized use, even such claim alleges that Motorola negligent regarding design manufacture part. Motorola registered trademarks Motorola, Inc. Motorola, Inc. Equal Opportunity/Affirmative Action Employer. Mfax trademark Motorola, Inc. reach EUROPE Locations Listed: Motorola Literature Distribution; P.O. 5405, Denver, Colorado 80217. 303-675-2140 1-800-441-2447 JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan. 81-3-5487-8488
MfaxTM: RMFAX0@email.sps.mot.com TOUCHTONE 602-244-6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Ping Industrial Park, Canada ONLY 1-800-774-1848 Ting Road, N.T., Hong Kong. 852-26629298 INTERNET: http://motorola.com/sps
MOTOROLA ANALOG DEVICE DATA MC3362/D
Other recent searches
SC-70 - SC-70 SC-70 Datasheet
SC-75 - SC-75 SC-75 Datasheet
MH32S64PHB-6 - MH32S64PHB-6 MH32S64PHB-6 Datasheet
KDZ16EV - KDZ16EV KDZ16EV Datasheet
eKA8561A - eKA8561A eKA8561A Datasheet
CX74076 - CX74076 CX74076 Datasheet
CIS019 - CIS019 CIS019 Datasheet
AN-14 - AN-14 AN-14 Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
