The ADN2812 provides receiver functions for quantization, signal‑level detection, and clock‑and‑data recovery over continuous data rates from 12.3 Mb/s to 2.7 Gb/s. It locks automatically without an external reference clock, meets SONET jitter requirements, and includes a loss‑of‑signal detector with adjustable threshold.
The device is supplied in a 5 mm × 5 mm 32‑lead LFCSP, operates from a single 3.3 V supply (3.0 V‑3.6 V range), and draws about 750 mW. Typical applications include SONET OC‑1/3/12/48, Fibre Channel, GbE, HDTV, WDM transponders, repeaters, test equipment, and broadband routers.
| Data Rate | 12.3 Mb/s to 2.7 Gb/s |
|---|---|
| Supply Voltage | 3.0 V to 3.6 V |
| Supply Current (typical) | 235 mA |
| Operating Temperature Range | -40 °C to +85 °C |
| Loss‑of‑Signal Detect Range | 3 mV to 15 mV |
| Jitter Transfer Bandwidth (OC‑48) | 490 kHz to 670 kHz |
The ADN2812 accepts serial data from 12.3 Mb/s up to 2.7 Gb/s.
No, the device operates without a reference clock.
It operates from a single supply of 3.0 V to 3.6 V, typically 3.3 V.
The LOS detector monitors the input level and asserts when it falls below a programmable threshold of 3 mV to 15 mV, with hysteresis to prevent chatter.