CD22357A Datasheet PDF - Intersil Corporation
| Part Number | CD22357A | |
| Description | CMOS Single-Chip/ Full-Feature PCM CODEC | |
| Manufacturers | Intersil Corporation | |
| Logo |  |
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Semiconductor
February 1999
NO
Call
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CD22354A,
CD22357A
CMOS Single-Chip,
Full-Feature PCM CODEC
[ /Title
(CD22
354A,
CD223
57A)
/Sub-
ject
(CMO
S Sin-
gle-
Chip,
Full-
Fea-
ture
PCM
CODE
C)
/
Author
()
/Key-
words
(Har-
ris
Semi-
con-
ductor,
RSLIC
18,
Tele-
com,
SLICs,
SLACs
, Tele-
phone,
Tele-
phony,
WLL,
Wire-
less
Local
Loop,
Features
• Meets or Exceeds All AT&T D3/D4 Specifications and CCITT
Recommendations
• Complete CODEC and Filtering Systems: No External Components
for Sample-and-Hold and Auto-Zero Functions. Receive Output Fil-
ter with (SIN X)/X Correction and Additional 8kHz Suppression
• Variable Data Clocks - From 64kHz . . . . . . . . . . . . . . . . . . . . . 2.1MHz
• Receiver Includes Power-Up Click Filter
• TTL or CMOS-Compatible Logic
• ESD Protection on All Inputs and Outputs
Applications
• PABX
• Central Office Switching Systems
• Accurate A/D and D/A Conversions
• Digital Telephones
• Cellular Telephone Switching Systems
• Voice Scramblers - Descramblers
• T1 Conference Bridges
• Voice Storage and Retrieval Systems
• Sound Based Security Systems
• Computerized Voice Analysis
• Mobile Radio Telephone Systems
• Microwave Telephone Networks
• Fiber-Optic Telephone Networks
Description
The CD22354A and CD22357A are monolithic silicon-
gate, double-poly CMOS integrated circuits containing
the band-limiting filters and the companding A/D and D/A
conversion circuits that conform to the AT&T D3/D4
specifications and CCITT recommendations. The
CD22354A provides the AT&T µ-law and the CD22357A
provides the CCITT A-law companding characteristic.
The primary applications for the CD22354A and
CD22357A are in telephone systems. These circuits
perform the analog and digital conversions between the
subscriber loop and the PCM highway in a digital
switching system. The functional block diagram is
shown below.
With flexible features, including synchronous and
asynchronous operations and variable data rates, the
CD22354A and CD22357A are ideally suited for PABX,
central office switching system, digital telephones as
well as other applications that require accurate A/D and
D/A conversions and minimal conversion time.
Ordering Information
PART
TEMP.
NUMBER RANGE (oC) PACKAGE PKG. NO.
CD22354AE -40 to 80 16 Ld PDIP E16.3
CD22357AE -40 to 80 16 Ld PDIP E16.3
Pinout
Functional Block Diagram
CD22354A, CD22357A
(PDIP)
TOP VIEW
V- 1
GND 2
VFRO 3
V+ 4
FSR 5
DR
BCLKR/
CLKSEL
MCLKR/
PDN
6
7
8
16 VFX1+
15 VFX1-
14 GSX
13 TSX
12 FSX
11 DX
10 BCLKX
9 MCLKX
GSX
VFX1-
VFX1+
14
15
16 +
GND
2
VFRO
3
FULL-FEATURE PCM CODEC
ANTI-ALLAS
FILTER
XMIT
LOW
PASS
FILTER
XMIT
HIGH
PASS
FILTER
TRANSMIT COMPARATOR
D/A
LADDER
XMIT
VREF
BAND
GAP
REFERENCE
XMIT
CLOCK
CIRCUIT
RCV
CLOCK
CIRCUIT
RCV
VREF
SMOOTHING
FILTER
RECEIVE
LOW PASS
FILTER
SIGN
BIT INT.
S.A.R.
XMIT DIGITAL
PARALLEL
TO
SERIAL
D/A
REGISTER
SERIAL
TO
PARALLEL
RCV DIGITAL
RECEIVE
D/A LADDER
+5V
-5V
11
10
12
DX
BCLKX
13 FSX
TSX
9
MCLKX
8 MCLKR/
PDN
5
7
FSR
BCLKR/
6 CLKSEL
DR
4 V+
1 V-
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1999
4-165
File Number 1682.4
|
| |
 
CD22354A, CD22357A
Electrical Specifications (Continued)
PARAMETER
SYMBOL
Transmit Input Amplifier Gain,
Unity
ACL
Transmit Gain, Absolute
Receive Gain, Absolute
GXA
GRA
TEST CONDITIONS
Unity Gain Configuration
Inverting or Non-Inverting
RL ≥ 10K, CL ≤ 50pF
RL ≥ 10K, CL ≤ 50pF
RL ≥ 600Ω, CL ≤ 500pF
MIN
TYP
MAX
UNITS
-0.01
-
0.01 dB
-0.15
-0.15
-
-
0.15 dB
0.15 dB
Electrical Specifications
PARAMETER
AC NOISE
Transmit Noise
Receive Noise
SYMBOL
TEST CONDITIONS
NX VFXI- = GND
VFXI+ = GND
NR PCM Code Equivalent to 0V
V+ Power Supply Rejection
Transmit
V- Power Supply Rejection
Transmit
V+ Power Supply Rejection
Receive
V- Power Supply Rejection
Receive
Cross Talk Transmit to Receive
Cross Talk Receive to Transmit
PSRR
PSRR
PSRR
PSRR
CTXR
CTRX
VFXI+ = 0V
V+ = 5V + (100mVRMS)
f = 0kHz to 50kHz
VFXI- = 0V
V- = -5V + (100mVRMS)
f = 0kHz to 50kHz
PCM Code = All 1 Code
V+ = 5V + (100mVRMS)
f = 0kHz to 4kHz
f = 4kHz to 25kHz
f = 25kHz to 50kHz
PCM Code = All 1 Code
V- = -5V + (100mVRMS)
f = 0kHz to 4kHz
f = 4kHz to 25kHz
f = 25kHz to 50kHz
VFXI- = 0dBm0 at 1020Hz
DR = 0dBm0 at 1020Hz,
VFXI- = 0V
MIN TYP MAX UNITS
- 12 15 dBrnc0
- -74 -67 dBrn0p
- 7 11 dBrnc0
- -83 -79 dBrn0p
40 -
- dBc
40 -
- dBc
40 -
- dBc
37 -
36 -
40 -
- dB
- dB
- dBc
40 -
-
36 -
-
- -80 -70
- -76 -70
dB
dB
dB
dB
4-169
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for CD22357A electronic component. |
| Information | Total 10 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ CD22357A.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| CD22357A | The function is CMOS Single-Chip/ Full-Feature PCM CODEC. Intersil Corporation | |
| CD22357AE | The function is CMOS Single-Chip/ Full-Feature PCM CODEC. Intersil Corporation | |
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