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參數(shù)資料
| 型號： | CD22357A |
| 廠商： | Intersil Corporation |
| 元件分類： | Codec |
| 英文描述： | CMOS Single-Chip, Full-Feature PCM CODEC |
| 中文描述： | CMOS單芯片，全功能的PCM編解碼器 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 55K |
| 代理商： | CD22357A |
4-165
Semiconductor
February 1999
Pinout
CD22354A, CD22357A
(PDIP)
TOP VIEW
Functional Block Diagram
FULL-FEATURE PCM CODEC
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
BCLK
X
MCLK
X
D
X
FS
X
GS
X
VF
X
1+
VF
X
1-
TS
X
V-
GND
VF
R
O
V+
FS
R
D
R
BCLK
R
/
CLKSEL
MCLK
R
/
PDN
R
CV
V
REF
XMIT
V
REF
COMPARATOR
XMIT
CLOCK
CIRCUIT
BAND
GAP
REFERENCE
XMIT DIGITAL
R
CV
DIGITAL
3
VF
R
O
+5V
-5V
V+
V-
11
10
12
13
9
8
5
7
6
4
1
D
X
BCLK
X
FS
X
TS
X
FS
BCLK
R
/
CLKSEL
D
R
PARALLEL
TO
SERIAL
S.A.R.
SIGN
BIT INT.
TRANSMIT
D/A
LADDER
RECEIVE
LOW PASS
FILTER
FILTER
RECEIVE
D/A LADDER
FILTER
XMIT
LOW
PASS
FILTER
XMIT
HIGH
PASS
FILTER
14
15
16
+
2
MCLK
R
/
PDN
MCLK
X
SERIAL
TO
PARALLEL
D/A
REGISTER
SMOOTHING
GND
VF
X
1+
VF
X
1-
GS
X
ANTI-ALLAS
R
CLOCK
CIRCUIT
F
T
D
D
CD22354A,
CD22357A
CMOS Single-Chip,
Full-Feature PCM CODEC
File Number
1682.4
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Harris Corporation 1999
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
CD22354A provides the AT&T
μ
-law and the CD22357A
provides the CCITT A-law companding characteristic.
recommendations.
The
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
NUMBER
TEMP.
RANGE (
o
C)
PACKAGE PKG. NO.
CD22354AE
-40 to 80
16 Ld PDIP E16.3
CD22357AE
-40 to 80
16 Ld PDIP E16.3
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
[ /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,
NO REOBSOLETE PRODUCT
Call or email: centapp@harris.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CD22357AE | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述: |
| CD22357AE WAF | 制造商:Harris Corporation 功能描述: |
| CD22357E | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述: |
| CD223N | 制造商:Schneider Electric 功能描述:SWITCH FUSIBLE GD 240V 100A 2P NEMA1 |
| CD22401BD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC |
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