AS3588A Datasheet, PDF (1/15 Pages) ams AG – DIGITAL TIME/SPACE CROSSPOINT SWITCH

Data Sheet
AS3588A
Austria Mikro Systeme International AG
Key Features
n 8-Line x 32 PCM Channel Inputs
n 8-Line x 32 PCM Channel Output
n 256 Ports Non Blocking Time/Space Crosspoint
Switch
n Single Power Supply of 5V
n Low Power Consumption
n Microprocessor Control Interface
n Open Drain Serial Outputs
n CMOS Process
n Simultaneous Connection/Disconnection under
Microprocessor Control
n Extraction/Insertion of Single PCM Channels
n Channel Zero Extraction
DIGITAL TIME/SPACE
CROSSPOINT SWITCH
General Description
AS3588A is designed for switching PCM channels
under microprocessor control in digital exchanges,
PBX or Central Office equipment. It provides a non
blocking digital switching matrix for up to 256x256
64 kbit/sec channels.
Each of the eight serial inputs and outputs consists of
32 64 kbit/sec channels multiplexed to/from a 2048
kbit/sec serial PCM bit stream.
Simultaneously it allows its controlling microprocessor
to read PCM output channels or to write to PCM
output channels.
Ordering Information
Part Number
Package
AS3588AP
40 Pin DIP
AS3588AQ
44 QFP
Block Diagramme
INP PCM0
INP PCM1
INP PCM2
INP PCM3
INP PCM4
INP PCM5
INP PCM6
INP PCM7
SERIAL
TO
PARALLEL
CONVERTER
CHANNEL 0
EXTRACTION
LOGIC
DATA MEMORY
256 X 8
DIN
DOUT
AD
DM MUX
OD
MUX
PARALLEL
SERIAL
TO
CONVERTER
DOUT
CONNECTION
MEMORY _AD
256 X 9
DIN
CM
MUX
TIME BASE
MICROPROCESSOR INTERFACE AND CONTROL LOGIC
OUT PCM0
OUT PCM1
OUT PCM2
OUT PCM3
OUT PCM4
OUT PCM5
OUT PCM6
OUT PCM7
SYNC
CLOCK
RES A1 S1 A2 S2 CS1 CS2 WR RD C/D DR
D0......D7
Figure 1: Block Diagramme
Rev. 3.1
Page 1 of 15
July 1999