AD809:  155 MHz Frequency Synthesizer

The AD809 provides a 155.52 MHz ECL/PECL output clock from either a 19.44 MHz or a 9.72 MHz TTL/CMOS/ECL/PECL reference frequency. The AD809 functionality supports a distributed timing ...More

AD809:  155 MHz Frequency Synthesizer

Product Description

The AD809 provides a 155.52 MHz ECL/PECL output clock from either a 19.44 MHz or a 9.72 MHz TTL/CMOS/ECL/PECL reference frequency. The AD809 functionality supports a distributed timing architecture, allowing a backplane or PCB 19.44 MHz or 9.72 MHz timing reference signal to be distributed to multiple 155.52 Mbps ports. The AD809 can be applied to create the transmit bit clock for one or more ports.

An input signal multiplexer supports loop-timed applications where a 155.52 MHz transmit bit clock is recovered from the 155.52 Mbps received data.

The low jitter VCO, low power and wide operating temperature range make the device suitable for generating a 155.52 MHz bit clock for SONET/SDH/Fiber in the Loop systems.

The device has a low cost, on-chip VCO that locks to either 8x or 16x the frequency at the 19.44 MHz or 9.72 MHz input. No external components are needed for frequency synthesis; however, the user can adjust loop dynamics through selection of a damping factor capacitor whose value determines loop damping.

The AD809 design guarantees that the clock output frequency will drift low (by roughly 20%) in the absence of a signal at the input.

The AD809 consumes 90 mW and operates from a single power supply at either +5 V or -5.2 V.

Features

  • Frequency Synthesis to 155.52 MHz
  • 19.44 MHz or 9.72 MHz Input
  • Reference Signal Select Mux
  • Single Supply Operation: +5 V or –5.2 V
  • Output Jitter: 2.0 Degrees RMS
  • Low Power: 90 mW
  • 10 KH ECL/PECL Compatible Output
  • 10 KH ECL/PECL/TTL/CMOS
    Compatible Input
  • Package: 16-Pin Narrow 150 Mil SOIC

Diagrams

AD809 Diagram
Functional Block Diagram for AD809

技术指标

Type Synthesizer
Output Frequency Range 155.52 MHz
Norm Phase Noise (dBc/Hz) -219dBc
Max REFin (MHz) 19.44MHz
Supply Current (max) 17mA
Package 16-Lead SOIC

浏览其他的产品

Part# Type Max RF Input (MHz) Output Frequency Range Norm Phase Noise (dBc/Hz) Max REFin (MHz) RF Prescalers Supply Current (max) Package Price* (1000-4999)
AD809 Synthesizer - 155.52 MHz -219 19.44 - 17 16-Lead SOIC $3.85
ADF4001 Single Integer-N 200 - -214 104 n/a 4.5 16-Lead TSSOP, 20-Lead CSP $1.72
ADF4002 Single Integer-N 400 - -222 300 n/a 5 16-Lead TSSOP, 20-Lead CSP $1.97
ADF4007 Single Integer-N 7500 - -219 240 N counter = 8/16/32/64 13 20-Lead CSP $2.16
ADF4106 Single Integer-N 6000 - -219 300 16/17, 32/33, 64/65, 8/9 13 16-Lead TSSOP, 20-Lead CSP $2.16
ADF4107 Single Integer-N 7000 - -219 250 16/17, 32/33, 64/65, 8/9 13 16-Lead TSSOP, 20-Lead CSP $2.67
ADF4108 Single Integer-N 8000 - -219 250 16/17, 32/33, 4/5, 64/65, 8/9 17 20-Lead CSP $3.34
ADF4110 Single Integer-N 550 - -215 104 16/17, 32/33, 64/65, 8/9 4.5 16-Lead TSSOP, 20-Lead CSP $2.28
ADF4111 Single Integer-N 1200 - -215 104 16/17, 32/33, 64/65, 8/9 4.5 16-Lead TSSOP, 20-Lead CSP $2.28
ADF4112 Single Integer-N 3000 - -215 104 16/17, 32/33, 64/65, 8/9 6.5 16-Lead TSSOP, 20-Lead CSP $2.28
ADF4113 Single Integer-N 4000 - -215 104 16/17, 32/33, 64/65, 8/9 8.5 16-Lead TSSOP, 20-Lead CSP $2.28
ADF4113HV Single Integer-N 4000 - -212 104 16/17, 32/33, 64/65, 8/9 11 16-Lead TSSOP, 20-Lead CSP $2.49
ADF4116 Single Integer-N 550 - -211 100 8/9 4.5 16-Lead TSSOP $2.28
ADF4117 Single Integer-N 1200 - -213 100 32/33 4.5 16-Lead TSSOP $2.28
ADF4118 Single Integer-N 3000 - -216 100 32/33 6.5 16-Lead TSSOP $2.28
ADF4153 Single Fractional-N 4000 - -213 250 4/5, 8/9 12 16-Lead TSSOP, 20-Lead CSP $2.28
ADF4154 Single Fractional-N 4000 - -213 250 4/5, 8/9 12 16-Lead TSSOP, 20-Lead CSP $2.28
ADF4156 Single Fractional-N 6000 - -213 250 4/5, 8/9 12 16-Lead TSSOP, 20-Lead CSP