CA16B2CNN datasheet(22/30 Pages) AGERE

Part #	CA16B2CNN

Description	CA16-Type 2.5 Gbits/s DWDM Transponder with 16-Channel 155 Mbits/s Multiplexer/Demultiplexer

PDF	30 Pages

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Manufacturer	AGERE [Agere Systems]

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Agere Systems Inc.

CA16-Type 2.5 Gbits/s DWDM Transponder with

Advance Data Sheet

16-Channel 155 Mbits/s Multiplexer/Demultiplexer

March 2001

Timing Characteristics (continued)

PCLK-to-PICLK Timing

After powerup or RESET, the LOCKDET signal will go

active, signifying that the PLL has locked to the clock

provided on the TXREFCLK input. The FIFO is initialized

on the third PICLK after LOCKDET goes active. The

PCLK-to-PICLK delay (tD) can have any value before the

FIFO is initialized. The tD is fixed at the third PICLK

after LOCKDET goes active. Once the FIFO is initial-

ized, PCLK and PICLK cannot drift more than 5.2 ns;

tCH cannot be more than 5.2 ns.

Figure 8. PCLK-to-PICLK Timing

PCLK

PICLK

LOCKDET

ACTIVE

3RD

IS INITALIZED AT THE THIRD RISING EDGE OF

PICLK AFTER LOCKDET GOES ACTIVE.

PCLK-TO-PICLK DELAY IS FIXED AND FIFO

2ND

1ST

tCH

1-1123(F)

CA16B2CNN Datasheet(PDF) 22 Page - Agere Systems