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PDF CD22301E Data sheet ( Hoja de datos )
| Número de pieza | CD22301E | |
| Descripción | Monolithic PCM Repeater | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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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
VEE 9
18 SUBSTRATE
17 ALBO BIAS
16 OSC BIAS
15 LC TANK INPUT
14 VCC
13 CLOCK LIMITER OUTPUT
12 TIMING PULSE INPUT
11 OUTPUT PULSE 1
10 OUTPUT PULSE 2
Functional Diagram
ALBO GND
1
ALBO OUTPUT CIRCUIT
ALBO BIAS
17
1K
VCC
AO1 2
AO2 3
AO3 4
100Ω
100Ω
100Ω
100Ω
100Ω 50K 18K
15K
FROM ALBO
PEAK DETECTOR
100Ω
VEE
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
1 page  
CD22301
1
2
3
4
- 3V + 8.2kΩ
8.2kΩ
8.2
kΩ
0.1
µF
0.1
µF
8.2kΩ
5kΩ
5
6
7
0.1
µF
0.1 8
µF
9
∆V
18
1µF
17
1µF
16
15 CLOCK
1µF 2kΩ
14
1µF
13
0.1µF 75Ω
12
IN4152
VCC = 5.1V
2.75VRMS at
1.185MHz
11 130Ω
10
DATA
FIGURE 6. TEST CIRCUIT FOR THRESHOLD VOLTAGE MEASUREMENT
1.0µF
ein
50Ω
200
kΩ
1.0
µF
1
2
NC
3
4
5
6
200kΩ
7
8
9
18
17
16 NC
15
14 VCC = 5.1V
0.1µF
13
12
NC
11
10
FIGURE 7. PREAMPLIFIER GAIN AND IMPEDANCE MEASUREMENT CIRCUIT
100%
90%
tW
50%
10%
0%
tR
tF
FIGURE 8. OUTPUT PULSE WAVEFORM
4-235
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet CD22301E.PDF ] | |
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