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ST5481

L.O.U.I.S -

LOW

COST

USB ISDN SOLUTION

PRODUCT PREVIEW

HARDWARE FEATURES

S/T ISDN Interface

s

COMMUNICATION DEVICE CLASS AND

VENDOR REQUESTS

s

SUPPORTS OSI LEVEL 1 IN CONFOR-

MANCE WITH UIT-T I.430 FOR BASIC

ACCESS AT S AND T INTERFACES (ETSI

300012/ANSI T1.605)

s

BUS OR SELF POWERED APPLICATION

(PIN PROGRAMMABLE)

s

ONNOW POWER MANAGEMENT (D0,D2,D3)

SUSPEND MODE COMPLIANCE

s

LINE INTERFACE TRANSFORMER DIRECT

DRIVE

s

PIN PROGRAMMABLE HIGH/LOW POWER

USB DEVICE REGISTRATION, WAKE-UP

CAPABILITY, USB DEVICE IDENTIFICATION

GENERAL

鈥?USB hot plug and play interface.

鈥?Control access and interrupt handling provided

through the USB interface.

鈥?All FIFOS and FIFOS management needed in-

cluded for USB/ISDN data processing.

鈥?Internal PLL to generate the USB 48MHz clock

from a 15.36MHz crystal.

鈥?Internal regulator for 3.3V generation from USB

bus 5V.

鈥?48 pin TQFP package.

鈥?0.35 micron HCMOS 6 process.

DESCRIPTION

ST5481 combines ISDN link access and an USB

interface to allow a very simple USB/ISDN

modem design with all ISDN protocols and upper

applications processed into the HOST PC.

s

FULL-DUPLEX TRANSMISSION AT 192KBps

ON SEPARATE TRANSMIT AND RECEIVE

TWISTED PAIRS USING ALTERNATE MARK

INVERSION (AMI) LINE CODING

s

2 B CHANNELS AT 64KBps EACH PLUS 1 D

CHANNEL AT 16KBps

s

ALL

I.430 WIRING CONFIGURATIONS

SUPPORTED INCLUDING PASSIVE BUS

FOR TE鈥橲 DISTRIBUTED POINT TO POINT

AND POINT TO MULTIPOINT

s

MULTIFRAME SUPPORT

s

ANALOG

PART:

INCLUDED

WITH

ADAPTIVE DETECTION THRESHOLD AND

EQUALIZER

USB Interface

s

USB 1.0 SPECIFICATION FULL COMPLI-

ANCE, 1.1 SPECIFICATION COMPATI-

BILITY (1.1 POWER MANAGEMENT COM-

PLIANCE), 12 MBps FULL SPEED

s

ON-CHIP

USB

DIGITAL PLL

TRANSCEIVER

WITH

s

6 ISOCHRONOUS ENDPOINTS FOR B1,

B2, D CHANNELS

ENDPOINT FOR I430

DATA.INTERRUPT

TQFP48

ORDERING NUMBER:

ST5481 TQF7

s

ISDN PROTOCOL AND DATA.CONTROL

ENDPOINT FOR USB STANDARD PLUS

VENDOR SPECIFIC REQUEST

October 2000

This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

1/18

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ST5481TQF7相關型號PDF文件下載

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  下載
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