Intersil Corporation CD22301 Datasheet
CD22301
January 1997
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
Ordering Information
PART
NUMBER
CD22301E -40 to 85 18 Ld PDIP E18.3
TEMP .
RANGE (oC) PACKAGE PKG. NO.
Monolithic PCM Repeater
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 circuit operates from a 5.1V ±5% externally regulated supply.
The CD22301 provides active circuitry to perform all functions of signal equalization and amplification, automatic line
buildout (ALBO), threshold detection, clock extraction, pulse
timing and buffered output formation.
Pinout
ALBO GROUND
ALBO 1 OUTPUT
ALBO 2 OUTPUT
ALBO 3 OUTPUT
PREAMP INPUT +
PREAMP INPUT -
PREAMP OUTPUT +
PREAMP OUTPUT -
V
1
2
3
4
5
6
7
8
9
EE
CD22301 (PDIP)
TOP VIEW
18
17
16
15
14
13
12
11
10
SUBSTRATE
ALBO BIAS
OSC BIAS
LC TANK INPUT
V
CC
CLOCK LIMITER OUTPUT
TIMING PULSE INPUT
OUTPUT PULSE 1
OUTPUT PULSE 2
Functional Diagram
ALBO GND
AO1
2
AO2
3
AO3
4
ALBO BIAS
171
100Ω 100Ω
100Ω100Ω
ALBO OUTPUT CIRCUIT
1K
100Ω
50K 18K
100Ω
15K
V
CC
FROM ALBO
PEAK DETECTOR
V
EE
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
4-231
File Number 1368.3
CD22301
Absolute Maximum Ratings Thermal Information
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V
Input Current (Into Pin 9 or 10). . . . . . . . . . . . . . . . . . . . . . . . .25mA
Peak Current (Into Pin 9 or 10). . . . . . . . . . . . . . . . . . . . . . . .100mA
Input Surge Voltage (Between Pins 5 and 6, t = 10ms) . . . . . . . 50V
Output Surge Voltage (Between Pins 10 and 11, t = 1ms). . . . . 50V
Power Dissipation
For TA = -40oC to 60oC. . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
For TA = 60oC to 85oC . . . . Derate Linearly 12mW/oC to 200mW
Device Dissipation per Output Transistor
For TA = Full Package Temperature Range (All Types) . . . . . 100mW
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Maximum Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . 175oC
Maximum Junction Temperature (Plastic Package) . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . -65oC ≤ TA≤ 150oC
Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . . 300oC
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . -40oC ≤ TA≤ 85oC
Electrical Specifications T
= 25oC, VCC = 5.1V ±5% (See Figure 4)
A
PARAMETER MIN TYP MAX UNITS
STATIC DC VOLTAGES
ALBO Pins (Pins 2, 3, 4 and 17) - 0 0.1 V
Pre Amp Inputs and Outputs (Pins 5, 6, 7 and 8) 2.4 2.9 3.4 V
Output Pulse 1, 2 (Pins 10 and 11) - 5.1 - V
Oscillator/Clock (Pins 12, 13, 15 and 16) 3.1 3.6 4.1 V
STATIC DC CURRENTS
I
CC
-2230mA
Output Pulse 1, 2 (Pins 10 and 11) - 0 100 µA
Electrical Specifications T
= 25oC, VCC = 5.1V ±5%
A
PARAMETER SYMBOL FIGURE NOTE MIN TYP MAX UNITS
DYNAMIC SPECIFICATIONS
Preamplifier Input Impedance Z
Preamplifier Output Impedance Z
Preamplifier Gain at 2.37MHz A
Preamplifier Output Offset Voltage ∆V
IN
OUT
O
OUT
720--kΩ
7--2kΩ
74750-dB
7 1 -50 0 50 mV
Clock Limiter Input Impedance ZIN(CL) 5 2 10 - - kΩ
ALBO Off Impedance Z
ALBO On Impedance Z
(off) 5 3 20 - - kΩ
ALBO
(on) 5 4 - - 10 Ω
ALBO
DATA Threshold Voltage VTH(D) 6 5, 8 0.62 0.7 0.78 V
CLOCK Threshold Voltage VTH(CL) 6 6, 8 0.92 1.1 1.28 V
ALBO Threshold VTH(AL) 6 7, 8 1.4 1.5 1.6 V
VTH(D) as % of VTH(AL) 44 47 49 %
VTH(CL) as % of VTH(AL) 66 73 80 %
Buffer Gate Voltage (low) V
Differential Buffer Gate Voltage ∆V
Output Pulse Rise Time t
OL
OL
R
4 9 0.65 0.8 0.95 V
4 9 -0.15 0 0.15 V
4, 8 9, 10 - - 40 ns
4-232
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