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Details, datasheet, quote on part number:M2004-11PB
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Datasheet text preview:
Integrated Circuit Systems, Inc.
Product Brief
M2004-11
FREQUENCY TRANSLATION PLL
GENERAL DESCRIPTION
The M2004-11 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 is functionally identical to the M2004-01 except that it includes protection switch circuitry to meet phase build-out requirements upon input reference reconfiguration.
PIN ASSIGNMENT (9 x 9 mm SMT)
REF_CLK0 REF_CLK1 nP_LOAD REF_SEL S_LOAD S_DATA 20 GND VCC 19 18 17 16 M0 27
26
24
23
25
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
22
21
S_CLOCK MR nFOUT FOUT GND N1 N0 VCC GND
F EATURE S
· Integrated SAW (surface acoustic wave) delay line · Internal protection switch circuit absorbs input phase · · · · · ·
transients and assures MTIE compliance for GR-253 (SONET) and G.813 (SDH) Output clock center frequencies from 37.5 to 700 MHz (Specify center frequency at time of order) 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
M2004-11
(Top View)
15 14 13 12 11 10
nOP_OUT
Example Input / Output Frequency Combinations
Input Clock (MHz) 19.44 38.80 77.76 155.52 25.00
RPOST CPOST CPOST
Output Divider Ratios
VCSO Freq 1 (MHz)
622.08
BLOCK DIAGRAM
RLOOP CLOOP
625
M5:0 Value Application (decimal) 32 16 OC-12/48 8 4 25 Gigabit Ethernet
1.Specify VCSO center frequency at time of order
Exte rna l Loop Filter Components
RLOOP
CLOOP OP_OUT
RPOST nOP_OUT nV C VC
M2004-11
MUX Phase Detector
OP_IN
nOP_IN
REF_CLK1 REF_CLK0 REF_SEL
1 0
RIN
SAW Delay Line
RIN
Loop Filter Amplifier
Phase Shifter
VCSO
M Divider
M = 3-1023
OP_OUT
N Divider S_DATA S_CLK S_LOAD nP_LOAD
N = 1,2,4,8
Serial / Parallel Configuration Register
6
2
M5:0
N1:0
MR
MNC 2004-11 Rev 1.0
M2004-11 Frequency Translation PLL
I n t e g r a t e d Circuit Systems, Inc. Communications Modules
www.icst.com/comm-modules
tel (508) 852-5400
nOP_IN
FOUT nFOUT
GND
GND
GND
OP_IN
nVC
VC
Revision 112602
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