T8532-JL-DB(2001) Ver la hoja de datos (PDF) - Agere -> LSI Corporation
Número de pieza
componentes Descripción
Lista de partido
T8532-JL-DB Datasheet PDF : 50 Pages
| |||
Preliminary Data Sheet
September 2001
T8531A/T8532 Multichannel Programmable
Codec Chip Set
Features
s Per-channel programmable gain and hybrid bal-
ance
s Programmable termination impedances
s Programmable µ-law, A-law, or linear PCM output
s Tone plant:
— DTMF generator
— DTMF receiver
— Caller ID generator
— Call progress tones generator
s Test utilities:
— Automatic gain calibration
— Tone generation
— dc generation
— dc measurement
— Variance computation
— Peak detection
s Analog and digital loopbacks
s Programmable time-slot assignment with bit offset
s Low-noise, balanced, receive SLIC interface
s Few or no SLIC/codec interface components
required
s Sigma-delta converters with dither noise reduction
s Serial microcontroller control interface
s Meets or exceeds ITU-T G.711—G.712 and rele-
vant Telcordia Technologies™ requirements
s Available in 64-pin MQFP and TQFP packages
General Description
The multichannel programmable codec chip set is
comprised of the T8531A 16-channel line card signal
processor and one or two custom T8532 octal A/D
and D/A converters. A ROM-coded tone plant, with
line-test and self-test utilities, is included on the sig-
nal processor. Together these devices achieve a
highly integrated and highly programmable multi-
channel voice codec solution.
Software is provided to compute the gain and filter
coefficients required to program the codec.
VTX (8)
VRTX (8)
VRP (8)
VRN (8)
T8532
OCTAL
A/D
D/A
VTX (8)
VRTX (8)
VRP (8)
VRN (8)
T8532
OCTAL
A/D
D/A
2
3
T8531A
DIGITAL
SIGNAL
2
PROCESSOR
3
ASIC
PCM
INTERFACE
CK16
Figure 1. System Block Diagram
MICROPROCESSOR
INTERFACE
5-3793i (F)
Share Link: 