TLK1002A
DUAL SIGNAL CONDITIONING TRANSCEIVER
www.ti.com
SLLS661–JUNE 2005
FEATURES
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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
Temperature Rating 0°C to 70°C
Low Power CMOS Design (<300 mW)
Small Footprint 4 mm × 4 mm 24-Lead QFN
Package
High Differential Output Voltage Swing
(1600 mVp-p typical)
APPLICATIONS
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400 mVp-p Differential Input Sensitivity
High Input Jitter Tolerance 0.606 UI
Single 1.8 V Power Supply
Resynchronization in Both Directions for
1.25 Gbps Links
Repeater for 1.0625 Gbps Applications
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2.5 V Tolerant Control Inputs
Differential VML Transmit Outputs With No
External Components Necessary
DESCRIPTION
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.