ADN2855ACPZ-R7

ADN2855ACPZ-R7概述

CDR 155.52Mbps/622.08Mbps/1244.16Mbps/1250Mbps 32Pin LFCSP EP T/R

Product Details

The ADN2855 is a burst mode clock and data recovery IC designed for GPON/BPON/GEPON optical line terminal OLT receiver applications. The part can operate at 155.52 Mbps, 622.08 Mbps, 1244.16 Mbps, or 1250.00 Mbps data rates, selectable via the I2C interface.

The ADN2855 frequency locks to the OLT reference clock and aligns to the input data within 12 bits of the start of the preamble. The device provides a full rate or an optional half rate output clock for a double data rate DDR interface to an FPGA or digital ASIC.

All specifications are quoted for −40°C to +85°C ambient temperature, unless otherwise noted. The ADN2855 is available in a compact 5 mm × 5 mm, 32-lead chip scale package.

**Applications**

.
Passive optical networks
.
GPON/BPON/GEPON OLT receivers

### Features and Benefits

.
Serial data input
.
155.52 Mbps/622.08 Mbps/1244.16 Mbps/1250.00 Mbps
.
12-bit acquisition time
.
4-bit parallel LVDS output interface
.
Patented dual-loop clock recovery architecture
.
Integrated PRBS generator
.
Byte rate reference clock
.
Loss-of-lock indicator
.
Supports double data rate DDR-compatible FPGA
.
I2C interface to access optional features
.
Single-supply operation: 3.3 V
.
Power
.
670 mW typical in serial output mode
.
825 mW typical in deserializer mode
.
5 mm × 5 mm, 32-lead LFCSP
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