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IDT821054 Datasheet

  • IDT821054

  • QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE

  • IDT

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QUAD PROGRAMMABLE PCM
CODEC WITH MPI INTERFACE
FEATURES
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4-channel CODEC with on-chip digital filters
Software selectable A/
碌
-law, linear code conversion
Meets ITU-T G.711 - G.714 requirements
Programmable digital filters adapting to system demands:
- AC impedance matching
- Transhybrid balance
- Frequency response correction
- Gain setting
Supports two programmable PCM buses
Flexible PCM interface with up to 128 programmable time slots,
data rate from 512 kbits/s to 8.192 Mbits/s
MPI control interface
Broadcast mode for coefficient setting
7 SLIC signaling pins (including 2 debounced pins) per channel
Fast hardware ring trip mechanism
IDT821054
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鈥?2 programmable tone generators per channel for testing,
ringing and DTMF generation
鈥?1 programmable FSK generator for sending Caller-ID messages
鈥?Two programmable chopper clocks
鈥?Master clock frequency selectable: 1.536 MHz, 1.544 MHz, 2.048
MHz, 3.072 MHz, 3.088 MHz, 4.096 MHz, 6.144 MHz, 6.176 MHz or
8.192 MHz
鈥?Advanced test capabilities:
- 3 analog loopback tests
- 5 digital loopback tests
- Level metering function
鈥?High analog driving capability (300
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AC)
鈥?TTL/CMOS compatible digital I/O
鈥?CODEC identification
鈥?+5 V single power supply
鈥?Low power consumption
鈥?Operating temperature range: -40擄C to +85擄C
鈥?Package available: 64 Pin PQFP
FUNCTIONAL BLOCK DIAGRAM
CH1
VIN1
VOUT1
2 Inputs
3 I/Os
2 Outputs
Filter and A/D
D/A and Filter
CH3
Filter and A/D
D/A and Filter
VIN3
VOUT3
2 Inputs
3 I/Os
2 Outputs
DSP
Core
SLIC Signaling
SLIC Signaling
CH2
MCLK
CHCLK1
CHCLK2
CH4
DR1
DR2
DX1
DX2
PLL and Clock
Generation
General Control
Logic
MPI Interface
PCM Interface
RESET
INT12 INT34
CCLK
CS
CI
CO
FS BCLK
TSX1 TSX2
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
錚?003
Integrated Device Technology, Inc.
FEBRUARY 26, 2003
DSC-6035/5

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