The ADN2807 provides the receiver functions of quantization, signal level detect, and clock and data recovery at rates of OC-3, OC-12, and 15/14 FEC. All SONET jitter requirements are met, including jitter transfer, jitter generation, and jitter tolerance. All specifications are quoted for -40°C to +85°C ambient temperature, unless otherwise noted. The device is intended for WDM system applications and can be used with either an external reference clock or an on-chip oscillator with external crystal. Both native rates and 15/14 rate digital wrappers are supported by ADN2807, without any change of reference clock. This device, together with PIN diode and TIA preamplifier, can implement highly integrated, low cost, low power, fiber optic receiver. The receiver front end signal detect circuit indicates when the input signal level has fallen below a user adjustable threshold. The signal detect circuit has hysteresis to prevent chatter at the output. The ADN2807 is available in compact 7 x 7mm 48-lead chip-scale package (LFCSP).
- 4 mV typical Quantizer sensitivity
- ±100 mV Adjustable slice level
- Patented clock recovery architecture
- 3mV to 15mV Loss-of-signal detect range
- Loss-of-lock indicator
- Output squelch and bypass features
- 3.3V Single-supply operation
- 540mW typical low power
- 7 x 7 mm 48-lead LFCSP
- Meets SONET requirements for jitter transfer/ generation/tolerance
- Single-reference clock frequency for all rates, including 15/14 (7%) wrapper rate
- Applications:
- SONET OC-3/-12, SDH STM-1/-4 and, 15/14 FEC rates
- WDM transponders
- Regenerators/repeaters
- Test equipment
- Passive optical networks
