TNETA1622 Datasheet, PDF (1/5 Pages) Texas Instruments – 622.08-MHz CLOCK-RECOVERY DEVICE

TNETA1622
622.08ĆMHz CLOCKĆRECOVERY DEVICE
SDNS017C − FEBRUARY 1994 − REVISED DECEMBER 1995
D Recovers a 622.08-MHz Clock Signal From
a 622.08-Mbit /s STS-12/STM-4 NRZ Data
Stream
D Accepts Pseudo-ECL (PECL) Input Voltage
Levels on the Input Data Stream
D Requires a Single 5-V Supply
D Provides PECL-Clock and PECL-Data
Outputs
description
The TNETA1622 recovers an embedded clock
signal from a 622.08-Mbit /s STS-12/STM-4
nonreturn-to-zero (NRZ) data stream using a
frequency/phase-locked loop. The device
accepts PECL (ECL signals referenced to 5 V
instead of GND) input-voltage levels. The
recovered clock and data outputs are PECL
compatible. The serial data input and recovered
clock and data outputs are differential to provide
maximum noise immunity.
DW PACKAGE
(TOP VIEW)
V_CC 1
V_CC 2
NC 3
GND 4
DATAIN 5
DATAIN 6
GND 7
V_CC 8
CAPOUTN 9
CAPOUTP ¹⁰
20 GND
19 GND
18 DATAOUT
17 DATAOUT
16 V_CC
15 V_CC
14 CLKOUT
13 CLKOUT
12 GND
11 _GND
NC − No internal connection
The TNETA1622 requires only a positive 5-V supply (5 V ± 5%) for operation. The TNETA1622 is characterized
for operation over a temperature range of − 40°C to 85°C.
functional block diagram
CAPOUTP CAPOUTN
DATAIN
DATAIN
Transition
Detector
Frequency-
and-Phase
Detector
Charge
Pump/Loop
Filter
Voltage -
Controlled
Oscillator
Retiming
DATAOUT
DATAOUT
CLKOUT
CLKOUT
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PRODUCT PREVIEW information concerns products in the formative or
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Copyright  1995, Texas Instruments Incorporated
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