Spread Aware/ Frequency Multiplier and Zero Delay Buffer
W170-01
Spread Aware™, Frequency Multiplier and Zero Delay Buffer
Features
• Spread Aware™—designed to work with SSFTG ...
Description
W170-01
Spread Aware™, Frequency Multiplier and Zero Delay Buffer
Features
Spread Aware™—designed to work with SSFTG reference signals Two outputs Configuration options allow various multiplication of the reference frequency, refer to Table 1 to determine the specific option which meets your multiplication needs Available in 8-pin SOIC package Table 1. Configuration Options FBIN OUT1 OUT1 OUT1 OUT1 OUT2 OUT2 OUT2 OUT2 FS0 0 1 0 1 0 1 0 1 FS1 0 0 1 1 0 0 1 1 OUT1 2 X REF 4 X REF REF 8 X REF 4 X REF 8 X REF 2 X REF 16 X REF OUT2 REF 2 X REF REF/2 4 X REF 2 X REF 4 X REF REF 8 X REF
Key Specifications
Operating Voltage: ...........................3.3V±5% or 5.0V± 10% Operating Range: .......................20 MHz < fOUT1 < 133 MHz Absolute Jitter: ......................................................... ±500 ps Output to Output Skew: .............................................. 250 ps Propagation Delay: ................................................... ±350 ps Propagation delay is affected by input rise time.
Block Diagram
FBIN
External feedback connection to OUT1 or OUT2, not both
Pin Configuration
FBIN IN GND
1 2 3 4
8 7 6 5
OUT2 VDD OUT1 FS1
FS0 FS1 ÷Q
FS0
IN Reference Input
Phase Detector
Charge Pump
Loop Filter
Output Buffer VCO ÷2 Output Buffer
OUT1
OUT2
Spread Aware is a trademark of Cypress Semiconductor Corporation.
Cypress Semiconductor Corporation
3901 North First Street
San Jose
CA 95134 408-943-2600 September 28, 1999, r...
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