PM5356 datasheet(28/307 Pages) PMC

28 / 307 page

RELEASED

S/UNI-622-MAX

PMC-Sierra, Inc.

PM5356

S/UNI-622-MAX

DATASHEET

PMC-1980589

ISSUE 6

SATURN USER NETWORK INTERFACE (622-MAX)

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Pin Name

Type

No.

Function

RRCLK+

RRCLK-

Differential

PECL

Input

When clock recovery is bypassed (RBYP set high),

RRCLK+/- is nominally a 622.08 MHz 50% duty cycle

clock and provides timing for the S/UNI-622-MAX

receive functions. In this case, RXD+/- is sampled on

the rising edge of RRCLK+/-. RRCLK+/- is ignored

when RBYP is set low.

Please refer to the Operation section for a discussion

of PECL interfacing issues.

PECL

Input

The receive signal detect PECL input (SD) indicates

the presence of valid receive signal power from the

Optical Physical Medium Dependent Device. A PECL

logic high indicates the presence of valid data. A

PECL logic low indicates a loss of signal.

Please refer to the Operation section for a discussion

of PECL interfacing issues

TXD+

TXD-

Differential

PECL

Output

The transmit differential data PECL outputs (TXD+/-)

contain the 622.08 Mbit/s transmit stream. The

TXD+/- outputs are driven using the synthesized

clock from the CSU-622.

Please refer to the Operation section for a discussion

of PECL interfacing issues.

PM5356 Datasheet(PDF) 28 Page - PMC-Sierra, Inc

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