CD22301 Datasheet, PDF (1/6 Pages) Intersil Corporation – Monolithic PCM Repeater

CD22301
January 1997
Monolithic PCM Repeater
Features
• Automatic Line Buildout
• Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1V
• Buffered Output
Applications
• Bipolar Carrier System . . . . . . . . . . . . .T1 1.544Mbits/s
• Ternary Carrier System . . . . . . . . . . . .T148 2.37Mbits/s
Description
The CD22301 monolithic PCM repeater circuit is designed
for T1 carrier systems operating with a bipolar pulse train of
1.544Mbits/s. It can also be used in the T148 carrier system
operating with a ternary pulse train of 2.37Mbits/s. The cir-
cuit operates from a 5.1V ±5% externally regulated supply.
The CD22301 provides active circuitry to perform all func-
tions of signal equalization and amplification, automatic line
buildout (ALBO), threshold detection, clock extraction, pulse
timing and buffered output formation.
Ordering Information
PART
NUMBER
CD22301E
TEMP.
RANGE (^oC)
PACKAGE
-40 to 85 18 Ld PDIP
PKG. NO.
E18.3
Pinout
CD22301 (PDIP)
TOP VIEW
ALBO GROUND 1
ALBO 1 OUTPUT 2
ALBO 2 OUTPUT 3
ALBO 3 OUTPUT 4
PREAMP INPUT + 5
PREAMP INPUT - 6
PREAMP OUTPUT + 7
PREAMP OUTPUT - 8
V_EE 9
18 SUBSTRATE
17 ALBO BIAS
16 OSC BIAS
15 LC TANK INPUT
14 V_CC
13 CLOCK LIMITER OUTPUT
12 TIMING PULSE INPUT
11 OUTPUT PULSE 1
10 OUTPUT PULSE 2
Functional Diagram
ALBO OUTPUT CIRCUIT
ALBO GND
1
ALBO BIAS
17
1K
V_CC
AO1 2
AO2 ₃
AO3 4
100Ω
100Ω
100Ω
100Ω
15K
100Ω 50K 18K
FROM ALBO
PEAK DETECTOR
V_EE
100Ω
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
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File Number 1368.3