The AD807 is a fiber optic receiver from Analog Devices that features a quantizer and clock recovery and data retiming. It meets CCITT G.958 and Bellcore TR-NWT-000253 standards, has a 155Mbps clock recovery and data retiming function, can accept NRZ data, does not require a preamble, and uses a phase-locked loop clock recovery that does not require a crystal.
The AD807 is a fiber‑optic receiver with integrated quantizer, clock recovery and data retiming for 155 Mbps NRZ data. It operates from a single supply (+5 V or –5.2 V) and provides low‑jitter output (2.0° RMS) without requiring an external crystal.
The document includes detailed electrical specifications, absolute maximum ratings, functional block diagrams, and performance graphs covering jitter, bandwidth, level‑detect characteristics, and power‑supply noise sensitivity.
| Quantizer Sensitivity | 2 mV |
|---|---|
| Input Voltage Range | 2.5 V |
| Output Jitter | 2.0 Degrees RMS |
| Center Frequency | 155.52 MHz |
| Upper -3 dB Bandwidth | 180 MHz |
| Power Supply Voltage | 4.5 V – 5.5 V |
| Power Supply Current | 25 – 34.5 mA |
| Input RMS Noise | 50 µV |
The AD807 quantizer has a sensitivity of 2 mV.
The device delivers an output jitter of 2.0 degrees RMS.
It can operate from a single supply of +5 V or –5.2 V, with a recommended range of 4.5 V to 5.5 V.
The PLL’s nominal center frequency is 155.52 MHz.