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DESCRIPTION

TLK1002A

DUAL SIGNAL CONDITIONING TRANSCEIVER

SLLS661 – JUNE 2005

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No External Filter Components Required for

PLLs

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Fully Integrated Signal Conditioning

Transceiver

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Supports Loop-Back Modes

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1.0–1.3 Gbps Operation

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Temperature Rating 0°C to 70°C

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Low Power CMOS Design (<300 mW)

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Small Footprint 4 mm × 4 mm 24-Lead QFN

Package

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High Differential Output Voltage Swing

(1600 mVp-p typical)

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400 mVp-p Differential Input Sensitivity

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Resynchronization in Both Directions for

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High Input Jitter Tolerance 0.606 UI

1.25 Gbps Links

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Single 1.8 V Power Supply

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Repeater for 1.0625 Gbps Applications

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2.5 V Tolerant Control Inputs

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Differential VML Transmit Outputs With No

External Components Necessary

TLK1002A is a single-chip dual signal conditioning transceiver.

This chip supports data rates from 1.0 Gbps up to 1.3 Gbps. An on-chip clock generation phase-locked loop

(PLL) generates the required half-rate clock from an externally applied reference clock. This reference clock

equals approximately one tenth of the data rate. It may be off frequency from both received data streams by up

to ±200 ppm.

Both data paths are implemented identical. The implemented input buffers provide an input sensitivity of 400

mVp-p differential.

The data paths tolerate up to 0.606 UI total input jitter. Signal retiming is performed by means of phase-locked

loop (PLL) circuits. The retimed output signals are fed to VML output buffers, which provide output amplitudes of

typical 1600mVp-p differential across the external 2x50

Ω load.

TLK1002A only requires a single 1.8 V supply voltage. Robust design avoids the necessity of special off-chip

supply filtering.

Advanced low power CMOS design leads to low power consumption.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.