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IDT821034 Datasheet(PDF) 1 Page - Integrated Device Technology

No. de Pieza. IDT821034
Descripción  QUAD PCM CODEC WITH PROGRAMMABLE GAIN
Descarga  19 Pages
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Fabricante  IDT [Integrated Device Technology]
Página de inicio  http://www.idt.com
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IDT821034 Datasheet(HTML) 1 Page - Integrated Device Technology

 
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MAY 13, 2003
DSC-6032/3
© 2003 Integrated Device Technology, Inc.
QUAD PCM CODEC WITH
PROGRAMMABLE GAIN
IDT821034
The IDT logo is a registered trademark of Integrated Device Technology, Inc
INDUSTRIAL TEMPERATURE RANGE
FEATURES:
4 channelCODEC with on-chip digital filters
Software Selectable A-law/
µ-lawcompanding
Programmablegainsetting
Automatic master clock frequency selection: 2.048MHz, 4.096
MHz or 8.192MHz
Flexible PCM interface with up to 128 programmable time slots,
data rate from 512 kbits/s to 8.192 Mbits/s
5 SLIC signaling pins per channel
Flexible Serial Control Interface to microcontroller
Software programmable timing modes
TTL and CMOS compatible digital I/O
Meets or exceeds ITU-T G.711 - G.714 requirements
+5 V single power supply
Low power consumption: 100mW Typ.
Operating temperature range: -40 °C to +85 °C
Packages available: 52 pin PQFP
FUNCTIONAL BLOCK DIAGRAM
A/D
+
D/A
+
+2.5V
-
Channel 0
SLIC Interface I/O
Channel 1
Channel 2
Channel 3
DSP
PCM
Interface
Serial
Control
Interface
Timing
DX
DR
FS
BCLK
TSX
CO
CI
CS
CCLK
MCLK
GSX0
VFXI0
VFRO0
O_0(4 - 2)
I/O_0(1 - 0)
DESCRIPTION:
The IDT821034 is a single-chip, four channel PCM CODEC with on-
chip filters and programmable gain setting. This device provides both
µ-Law and A-Law companding digital-to-analog and analog-to-digital
conversions based on ITU-T G.711 - G.714 specifications. The digital
filters in IDT821034 provides the necessary transmit and receive filtering
for voice telephone circuit to interface with time-division multiplexed
systems. The IDT821034 has a flexible PCM interface with software
selectable timing modes and independently programmable time slot for
each transmit and receive channel. It also integrates the SLIC signaling
functions through internal registers. The CODEC and SLIC control/status
registers are accessed via the Serial Control Interface.
The IDT821034 can be used in digital telecommunication applications
such as PBX, Central Office Switch, Digital Telephone and Integrated Voice/
Data Access Unit.


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