VCSO-Based Frequency Generator M901-01 Preliminary Specifica
|
|
|
Top Searches for this datasheet
M901-01
VCSO-Based Frequency Generator
M901-01
Preliminary Specifications
DESCRIPTION
M901-01 integrates high performance Phase Locked Loop (PLL) with Voltage Controlled Oscillator (VCSO) provide jitter Frequency Generator surface mount package. internal high filter provides jitter signal performance determines maximum output frequency VCSO. programmable output divider divide VCSO frequency factor
FEATURES
Output Clock Frequency 700MHz Internal Voltage Controlled Oscillator Intrinsic Jitter <1psec (12kHz 20MHz 622.08MHz) XTAL LVCMOS Input, LVPECL Output Single 3.3V Supply Small 9x9mm Package Ideal OC-48, SDH-12, 10GbE Transmit Clock Reference
output frequency accuracy assured phase-locking VCSO external frequency reference. M901-01 reference external crystal with appropriate load capacitors, external clock source such LVCMOS/LTL compatible crystal oscillator. phase noise jitter performance M901-01 make ideal high frequency master clock.
9001 Registered
Integrated Circuit Systems, Inc.
Communications Modules
www.icst.com/Comm-Modules
tel: 508-852-5400
FUNCTIONAL DESCRIPTION
M901-01
Preliminary Specifications
parallel-resonant, fundamental mode crystal should used input on-chip oscillator. output oscillator into phase detector becomes phase detector reference frequency. external LVCMOS/LVTTL clock source used, should applied XTAL_1 input pin. internal will adjust VCSO output frequency (feedback divider) times input crystal frequency. product input crystal frequency must such that falls within "lock" range VCSO. output divider programmed divide VCSO output frequency provide output duty cycle. multiplying factor programmed 5-bit
parallel (M5-M2; M0). Note: been deleted, therefore, causes some multiplying factors unavailable. relationship between VCSO frequency, divider input crystal frequency defined follows: vcso xtal When output divider included, complete relationship output frequency defined vcso xtal inputs hard wired divider specific state that will automatically occur during power-up.
BLOCK DIAGRAM
RLOOP CLOOP
RPOST CPOST CPOST External Loop Filter Components
RLOOP CLOOP
RPOST nOP_OUT
M901-01
Phase Detector XTAL
OP_IN
nOP_IN
OP_OUT
XTAL_1 REF_IN XTAL_2
Delay Line
Loop Filter Amplifier
Phase Shifter VCSO Divider
M1=0 Divider
FOUT nFOUT
M5:2,
P1:0
OUT_EN
Integrated Circuit Systems, Inc.
Communications Modules
www.icst.com/Comm-Modules
tel: 508-852-5400
FUNCTIONAL DESCRIPTION LOOP FILTER
Rloop Cloop
M901-01
Preliminary Specifications
Rpost
Cpost
M901-01 requires external loop filter provided filter pins. differential design, implementation requires identical, filters shown here.
OP_IN nOP_IN
nOP_OUT nOP_OUT
Rloop
Cloop
Rpost
Cpost
FILTER COMPONENT VALUES Bandwidth Damping Factor loop loop post post
400Hz 1.2kHz 2.5kHz 9.9kHz
1.5k 4.7k
4.7µF 0.022µF
3300pF 1500pF 470pF 470pF
Integrated Circuit Systems, Inc.
Communications Modules
www.icst.com/Comm-Modules
tel: 508-852-5400
SPECIFICATIONS DESCRIPTIONS Number Name OP_IN, nOP_IN nOP_OUT, OP_OUT nVC, FOUT nFOUT OUT_EN XTAL_1/REF_IN XTAL_2 Configuration Analog Analog Input Power Input Pull-down Output Output Input Input Input Input Input Unterminated Unterminated Pull down
M901-01
Preliminary Specifications
Pull down Pull
Description Power Supply Ground Used External Loop Filter. figure Used External Loop Filter. figure VCSO Differential Control Voltage Input. Power Supply Ground Positive Power Supply Determines output divider value defined table below. LVCMOS/LVTTL interface levels. Non-inverting Differential Output. LVPECL Inverting Differential Output. LVPECL Logic enables output. LVCMOS LVTTL interface levels. Crystal Oscillator Input. also accept LVCMOS/ LVTTL compatible clock source. Crystal Oscillator Input. Divider Inputs. Data always transparent. latch signal required. Connection. Connect. Internal test pins.
OUTPUT DIVIDER RATIOS Divider Ratios
ABSOLUTE MAXIMUM RATINGS
Inputs, Output, Supply Voltage, Storage Temperature
-0.5 +0.5V -0.5 +0.5V 4.6V -45°C +100°C
Stresses beyond those listed under Absolute Maximum Ratings cause permanent damage device. These ratings stress specifications only. Functional operation product these conditions conditions beyond those listed Characteristics Characteristics implied. Exposure absolute maximum rating conditions extended periods affect product reliability.
Integrated Circuit Systems, Inc.
Communications Modules
www.icst.com/Comm-Modules
tel: 508-852-5400
SPECIFICATIONS POWER SUPPLY CHARACTERISTICS Symbol Parameter
M901-01
Preliminary Specifications
Typical
Units
Positive Supply Voltage Power Supply Current
3.135
3.465
LVCMOS/LVTTL CHARACTERISTICS
+3.3 Volts 70°C
Symbol Parameter Typical Units
Input High Voltage Input Voltage Input High Current Input Current
XTAL_1/ REF_IN XTAL_1/ REF_IN XTAL_1/ REF_IN XTAL_1/ REF_IN
-0.3 -5.0
DIFFERENTIAL OUTPUT CHARACTERISTICS
+3.3 Volts 70°C
Symbol Parameter Typical Units
VP-P
Output High Voltage Output Voltage Peak Peak Output Voltage
-2.0
0.85
CHARACTERISTICS
+3.3 Volts 70°C
Symbol Parameter Test Conditions Units
Fout
Output Frequency Single Side Band Phase Noise @622MHz 1kHz Offset 10kHz OffsetI 100kHz Offset 1kHz Offset 10kHz Offset I00kHz Offset 50kHz 20MHz @622MHz
-100 -123 0.50 FOUT, nFOUT FOUT, nFOUT XTAL_1/ REF_IN
dBc/Hz dBc/Hz dBc/Hz
J(t)
Jitter (rms) Output Duty Cycle Output Rise Time Output Fall Time Input Frequency
Non-deterministic
Integrated Circuit Systems, Inc.
Communications Modules
www.icst.com/Comm-Modules
tel: 508-852-5400
MECHANICAL DIMENSIONS CONFIGURATION
M901-01
Preliminary Specifications
XTAL_2 XTAL_1 REF_IN
M901-01
(Top View)
OUT_EN nFOUT FOUT
RECOMMENDED FOOTPRINT
PIN#
DESIGNATION OP_IN nOP_OUT OP_OUT nOP_IN FOUT nFOUT OUT_EN
PIN#
DESIGNATION XTAL_1, REF_IN XTAL_2
DIMENSIONS INCHES, DIMENSIONS
reserves right make changes device data identified this publication without further notice. advises customers obtain latest version device data verify that information being relied upon customer current accurate.
Integrated Circuit Systems, Inc.
Communications Modules Clark Street Worcester, 01606 tel: 508-852-5400 fax: 508-852-8456
European Sales Headquarters Hertogsingel 6214 Maastricht Netherlands tel: +31-43-32-70912 fax: +31-43-32-70715 Integrated Circuit Systems, Inc.
www.icst.com/Comm-Modules Communications Modules www.icst.com/Comm-Modules
OP_IN nOP_OUT OP_OUT nOP_IN
Rev. tel: 508-852-5400
Other recent searches
RN1410 - RN1410 RN1410 Datasheet
RN1411 - RN1411 RN1411 Datasheet
IDT23S05T - IDT23S05T IDT23S05T Datasheet
ENN7130 - ENN7130 ENN7130 Datasheet
MCH3206 - MCH3206 MCH3206 Datasheet
E72E72- - E72E72- E72E72- Datasheet
DAC7644 - DAC7644 DAC7644 Datasheet
BSM300GB120DLC - BSM300GB120DLC BSM300GB120DLC Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
