IDT821054 Datasheet, PDF (1/45 Pages) Integrated Device Technology – QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE

QUAD PROGRAMMABLE PCM
CODEC WITH MPI INTERFACE
IDT821054
FEATURES
• 4-channel CODEC with on-chip digital filters
• Software selectable A/µ-law, linear code conversion
• Meets ITU-T G.711 - G.714 requirements
• Programmable digital filters adapting to systemdemands:
- 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
FUNCTIONAL BLOCK DIAGRAM
• 2 programmable tone generators per channel for testing,
ringing and DTMF generation
• 1 programmable FSK generator for sending Caller-ID messages
• Two programmable chopper clocks
• 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
• Advanced test capabilities:
- 3 analog loopback tests
- 5 digital loopback tests
- Level metering function
• High analog driving capability (300 Ω AC)
• TTL/CMOS compatible digital I/O
• CODEC identification
• +5 V single power supply
• Low power consumption
• Operating temperature range: -40°C to +85°C
• Package available: 64 Pin PQFP
VIN1
VOUT1
2 Inputs
3 I/Os
2 Outputs
MCLK
CHCLK1
CHCLK2
CH1
Filter and A/D
D/A and Filter
SLIC Signaling
DSP
Core
CH3
Filter and A/D
D/A and Filter
SLIC Signaling
CH2
CH4
PLL and Clock
Generation
General Control
Logic
MPI Interface
PCM Interface
VIN3
VOUT3
2 Inputs
3 I/Os
2 Outputs
DR1
DR2
DX1
DX2
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
2003 Integrated Device Technology, Inc.
FEBRUARY 26, 2003
DSC-6035/5