Overview
The AD809BRZ-REEL, produced by Analog Devices Inc., is a clock/frequency synthesizer IC designed to generate a 155.52 MHz output clock from either a 19.44 MHz or a 9.72 MHz input reference signal. This device is particularly useful in telecommunications and data transmission systems, such as SONET/SDH and Fiber in the Loop networks. It features a low-cost, on-chip Voltage-Controlled Oscillator (VCO) that requires no external components for frequency synthesis, making it a compact and efficient solution for timing needs.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Reference Frequency | - | 19.42 | 19.44 | 19.46 | MHz (×8 Synthesis) |
| Input Reference Frequency | - | 9.71 | 9.72 | 9.73 | MHz (×16 Synthesis) |
| Output Jitter | - | 1.6 | 2.0 | 2.9 | Degrees RMS |
| Power Supply | - | +5 V or –5.2 V | - | - | V |
| Power Consumption | - | - | 90 | - | mW |
| Output Compatibility | - | - | - | - | ECL/PECL/TTL/CMOS |
| Package Type | - | - | - | - | 16-Pin Narrow 150 Mil SOIC |
Key Features
- Frequency synthesis up to 155.52 MHz from 19.44 MHz or 9.72 MHz input reference signals.
- Single supply operation: +5 V or –5.2 V.
- Low power consumption: 90 mW.
- Low jitter VCO: 2.0 degrees RMS.
- ECL/PECL compatible output.
- TTL/CMOS/ECL/PECL compatible input.
- No external components required for frequency synthesis.
- Adjustable loop dynamics through selection of a damping factor capacitor.
Applications
- SONET/SDH and Fiber in the Loop systems.
- Distributed timing architectures in backplanes or PCBs.
- Generating transmit bit clocks for one or more ports.
- Loop-timed applications where a 155.52 MHz transmit bit clock is recovered from received data.
Q & A
- What is the primary function of the AD809BRZ-REEL?
The AD809BRZ-REEL is a clock/frequency synthesizer IC that generates a 155.52 MHz output clock from either a 19.44 MHz or a 9.72 MHz input reference signal.
- What are the input reference frequencies supported by the AD809BRZ-REEL?
The device supports input reference frequencies of 19.44 MHz and 9.72 MHz.
- What is the output jitter specification of the AD809BRZ-REEL?
The output jitter is specified as 2.0 degrees RMS.
- What power supply options are available for the AD809BRZ-REEL?
The device can operate from a single power supply of either +5 V or –5.2 V.
- How much power does the AD809BRZ-REEL consume?
The device consumes 90 mW of power.
- What type of output is provided by the AD809BRZ-REEL?
The output is ECL/PECL compatible.
- Does the AD809BRZ-REEL require external components for frequency synthesis?
No, the device does not require external components for frequency synthesis.
- How can the loop dynamics of the AD809BRZ-REEL be adjusted?
The loop dynamics can be adjusted through the selection of a damping factor capacitor.
- What are some common applications of the AD809BRZ-REEL?
Common applications include SONET/SDH and Fiber in the Loop systems, distributed timing architectures, and generating transmit bit clocks.
- What is the package type of the AD809BRZ-REEL?
The device is packaged in a 16-Pin Narrow 150 Mil SOIC.
