CD22354AE Harris Corporation, CD22354AE Datasheet

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CD22354AE

Manufacturer Part Number
CD22354AE
Description
Manufacturer
Harris Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CD22354AE
Manufacturer:
ALLEGRO
Quantity:
6 223
Company:
Part Number:
CD22354AE
Quantity:
125
February 1999
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Features
• Meets or Exceeds All AT&T D3/D4 Specifications and CCITT
• Complete CODEC and Filtering Systems: No External Components
• 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
Pinout
CLKSEL
MCLK
BCLK
Recommendations
for Sample-and-Hold and Auto-Zero Functions. Receive Output Fil-
ter with (SIN X)/X Correction and Additional 8kHz Suppression
VF
GND
PDN
FS
R
D
V+
©
V-
O
R
R
CD22354A, CD22357A
R
R
/
/
Harris Corporation 1999
1
2
3
4
5
6
7
8
Semiconductor
TOP VIEW
(PDIP)
16
15
14
13
12
11
10
9
VF
VF
GS
TS
FS
D
BCLK
MCLK
X
X
X
X
X
X
1+
1-
X
X
Functional Block Diagram
VF
GND
VF
VF
GS
X
X
1+
R
1-
O
X
14
15
16
2
3
+
ANTI-ALLAS
SMOOTHING
FILTER
FILTER
4-165
REFERENCE
BAND
GAP
FULL-FEATURE PCM CODEC
FILTER
LOW PASS
PASS
XMIT
LOW
RECEIVE
FILTER
CIRCUIT
CIRCUIT
CLOCK
CLOCK
XMIT
V
XMIT
V
R
R
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 -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
REF
REF
CV
CV
CD22354AE
CD22357AE
NUMBER
PART
FILTER
HIGH
PASS
XMIT
Full-Feature PCM CODEC
XMIT DIGITAL
REGISTER
CD22354A,
S.A.R.
D/A LADDER
TRANSMIT
RANGE (
D/A
CD22357A
RECEIVE
LADDER
-40 to 80
-40 to 80
TEMP.
D/A
CMOS Single-Chip,
R
CV
BIT INT.
o
SIGN
C) PACKAGE PKG. NO.
PARALLEL
DIGITAL
COMPARATOR
PARALLEL
SERIAL
SERIAL
TO
16 Ld PDIP E16.3
16 Ld PDIP E16.3
TO
File Number
+5V
-5V
11
10
12
13
9
8
5
7
6
4
1
D
BCLK
FS
MCLK
MCLK
PDN
FS
D
TS
BCLK
CLKSEL
V+
V-
X
R
X
R
1682.4
X
X
X
R
R
/
/

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CD22354AE Summary of contents

Page 1

... 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 NUMBER CD22354AE CD22357AE FULL-FEATURE PCM CODEC 14 GS XMIT X ...

Page 2

Absolute Maximum Ratings DC Supply-Voltage, (V .-0 Supply-Voltage, (V ...

Page 3

Electrical Specifications 5 - PARAMETER SYMBOL TRANSMIT AND RECEIVE FILTER TRANSFER CHARACTERISTICS Transmit Gain (Relative to Gain at 1020Hz) Input Amplifier Set to Unity Gain Receive Gain (Relative to Gain ...

Page 4

Electrical Specifications PARAMETER SYMBOL AC DISTORTION Signal to Total Distortion STD Xmit Single Frequency Distortion SFD Xmit Intermodulation (End-to-End Measurement) 2-Tone Transmit Delay, Absolute Transmit Envelope Delay Relative to t DAX Receive Delay, Absolute ...

Page 5

Electrical Specifications (Continued) PARAMETER SYMBOL Transmit Input Amplifier Gain, Unity Transmit Gain, Absolute G Receive Gain, Absolute G Electrical Specifications PARAMETER SYMBOL AC NOISE Transmit Noise Receive Noise V+ Power Supply Rejection PSRR Transmit V- Power Supply Rejection PSRR Transmit ...

Page 6

Electrical Specifications PARAMETER SYMBOL AC TIMING Frequency of Master Clocks 1/t Width of Master Clock High t Width of Master Clock Low t Rise Time of Master Clock Fall Time of Master Clock Set-up Time from BCLK High t X ...

Page 7

Electrical Specifications (Continued) PARAMETER SYMBOL Hold Time from 3rd Period of Bit Clock Low to Frame Sync ( Minimum Width of the Frame Sync Pulse (Low Level) NOTE: 1. For short frame sync timing, FS ...

Page 8

Functional Description Power Supply Sequencing Do not apply input signal or load on output before powering up V supply. Care must be taken to ensure that D CC goes on common back plane (with other D chips). D pin cannot ...

Page 9

A rising edge on the receive frame sync, FS PCM data latched in on the next falling edge of the R BCLK . The remaining seven bits are latched on the succes- R sive seven falling ...

Page 10

RM t WWH t FM MCLK R MCLK X t SBFM t SBFM BCLK SFB HBF t DZF t DZF HBF 1 BCLK SFB ...

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