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Intersil Electronic Components Datasheet

CD22357A Datasheet

CMOS Single-Chip/ Full-Feature PCM CODEC

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Semiconductor
February 1999
NO
Call
CRoeErnOCetrOBmaSMlaOAiMl:pLEpEcNlTeiDcnEaEtaPtDipoRpRnO@sEDP1hUL-aC8Ar0rTCi0sE-.4cM4o2Em-N7T747
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


Intersil Electronic Components Datasheet

CD22357A Datasheet

CMOS Single-Chip/ Full-Feature PCM CODEC

No Preview Available !

CD22354A, CD22357A
Absolute Maximum Ratings
Thermal Information
DC Supply-Voltage, (V+) . . . . . . . . . . . . . . . . . . . . . . . . . .-0.5 to 7V
DC Supply-Voltage, (V-) . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 to -7V
DC Input Diode Current,
IIK (VI < V- -0.5V or VI > V+ 0.5V) . . . . . . . . . . . . . . . . . . . . . . . .±20mA
DC Output Diode Current,
IOK (VI < V- -0.5V or VO > V+ 0.5V). . . . . . . . . . . . . . . . . . . . . . .±20mA
DC Drain Current, Per Output
IO (V- -0.5V < VO < V+ 0.5V) . . . . . . . . . . . . . . . . . . . . . . . . . . . .±25mA
DC Supply/Ground Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±50mA
Power Dissipation Per Package (PD):
For TA = -40oC to 60oC . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
For TA = 60oC to 85oC . . . . . . . . . . . . Derate Linearly at 8mW/oC
to 300mW
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 175oC
Maximum Junction Temperature (Plastic Package) . . . . . . . . 150oC
Maximum Storage Temperature Range (TSTG) . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC
Operating Conditions
Operating-Temperature Range (TA) . . . . . . . . . . . . . . -40oC to 80oC
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.
Electrical Specifications At TA = 25oC
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
STATIC SPECIFICATIONS
Positive Power Supply
V+
4.75 5 5.25 V
Negative Power Supply
V-
-4.75 -5 -5.25 V
Power Dissipation (Operating)
Power Dissipation (Standby)
POPR
PSTBY
V+ = 5V
V- = -5V
- 75 90 mW
- 9 15 mW
Electrical Specifications At TA = 0oC to 70oC; V+ = 5V ±5%, V- = -5V ±5%
PARAMETER
SYMBOL
TEST CONDITIONS
STATIC SPECIFICATIONS
Analog Input Resistance
Input Capacitance
Input Leakage Current, Digital
Low Level Input Voltage
High Level Input Voltage
Low Level Output Voltage
High Level Output Voltage
Open State Output Current
Input Leakage Current, Analog
RINA
CIN
II
VIL
VIH
VOL
VOH
IOZ
II
All Logic and Analog Inputs
VI = 0V or V+
IIL = ±10µA (Max)
IIH = ±10µA (Max)
IOL = 3.2mA
IOH = 1.0mA
GND < DX < V+
-2.5V VFX < 2.5V
MIN
10
-
-10
-
2
-
2.4
-10
-200
TYP
-
5
-
-
-
-
-
-
-
MAX
UNITS
- M
- pF
10 µA
0.8 V
-V
0.4 V
-V
10 µA
200 nA
4-166


Part Number CD22357A
Description CMOS Single-Chip/ Full-Feature PCM CODEC
Maker Intersil Corporation
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CD22357A Datasheet PDF






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Intersil Corporation





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