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Part: M2004-01PB
Category:
Description:
Company: Integrated Circuit System
Datasheet: Download M2004-01PB datasheet File size : 58 kB
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Integrated Circuit Systems, Inc.
Product Brief
M2004-01
FREQUENCY TRANSLATION PLL
GENERAL DESCRIPTION
The M2004-01 is a VCSO (Voltage Controlled SAW Oscillator) based clock generator PLL designed for reference clock frequency translation and jitter attenuation in a high-speed data communications system. The device's clock multiplication ratio and output divider ratio are user selectable through serial programing or parallel select pins. External loop filter components allow tailoring of the PLL loop response.
PIN ASSIGNMENT (9 x 9 mm SMT)
REF_CLK0 REF_CLK1 nP_LOAD REF_SEL S_LOAD S_DATA 20 GND VCC 19 M0 27
26
24
23
25
22
21
M1 M2 M3 M4 M5 VCC NC NC NC
28 29 30 31 32 33 34 35 36 5 6 7 1 2 3 4 8 9
18 17 16
S_CLOCK MR nFOUT FOUT GND N1 N0 VCC GND
F EATURE S
· Integrated SAW (surface acoustic wave) delay line · Output clock center frequencies from 37.5 to 700 MHz · · · · ·
(Consult factory for available center frequencies) Low phase jitter 0.5ps RMS, typical (12kHz-20MHz) Low phase noise -104dBc/Hz @ 1kHz offset Ideal for OC-48, STM-16, GbE clock reference Single 3.3V power supply Small 9 x 9 mm SMT package includes SAW device
N1:0 00 01 10 11 N Divider Value 1 2 4 8
M2004-01
(Top View)
15 14 13 12 11 10
GND
GND
GND
Output Divider Ratios
Example Input/Output Frequency Combinations
Input Clock (MHz) 19.44 38.80 77.76 155.52 25 VCSO Freq 1 (MHz) M5:0 Value (decimal) 32 16 8 4 25 Application
622.08
nOP_OUT
OP_OUT
nOP_IN
nVC
OP_IN
VC
OC-12/48
BLOCK DIAGRAM
R LOOP C LOOP RPOST
625.00
Gigabit Ethernet
1.Specify VCSO center frequency at time of order
CPOST CPOST R LOOP C LOOP OP_OUT RPOST nOP_OUT nV C VC
Ex terna l Loop Filter Compon ent s
M2004-01
MUX Phase Detector
OP_IN
nOP_IN
RIN
SAW Delay Line
REF_CLK1 REF_CLK0 REF_SEL
1 0
RIN Loop Filter Amplifier Phase Shifter
VCSO
M Divider
M = 3-1023
N Divider S_DATA S_CLK S_LOAD nP_LOAD
N = 1,2,4,8
FOUT nFOUT
Serial / Parallel Configuration Register
6
2
M5:0
N1:0
MR
MNC 2004-01 Rev 1.0
M2004-01 Frequency Translation PLL
Revision 112602
I n t e g r a t e d Circuit Systems, Inc. Communications Modules
www.icst.com/comm-modules
tel (508) 852-5400
Others parts begin by m2
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