TS5070 データシートの表示（PDF） - STMicroelectronics

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TS5070

PROGRAMMABLE CODEC/FILTER COMBO 2ND GENERATION

STMicroelectronics 

TS5070

®

TS5071

PROGRAMMABLE CODEC/FILTER

COMBO 2ND GENERATION

COMPLETE CODEC AND FILTER SYSTEM

INCLUDING :

– TRANSMIT AND RECEIVE PCM CHANNEL

FILTERS

– µ-LAW OR A-LAW COMPANDING CODER

AND DECODER

– RECEIVE POWER AMPLIFIER DRIVES

300 Ω

– 4.096 MHz SERIAL PCM DATA (max)

PROGRAMMABLE FUNCTIONS :

– TRANSMIT GAIN : 25.4 dB RANGE, 0.1 dB

STEPS

– RECEIVE GAIN : 25.4 dB RANGE, 0.1 dB

STEPS

– HYBRID BALANCE CANCELLATION FIL-

TER

– TIME-SLOT ASSIGNMENT: UP TO 64

SLOTS/FRAME

– 2 PORT ASSIGNMENT (TS5070)

– 6 INTERFACE LATCHES (TS5070)

– A OR µ-LAW

– ANALOG LOOPBACK

– DIGITAL LOOPBACK

DIRECT INTERFACE TO SOLID-STATE

SLICs

SIMPLIFIES TRANSFORMER SLIC, SINGLE

WINDING SECONDARY

STANDARD SERIAL CONTROL INTERFACE

80 mW OPERATING POWER (typ)

1.5mW STANDBY POWER (typ)

MEETS OR EXCEEDS ALL CCITT AND

LSSGR SPECIFICATIONS

TTL AND CMOS COMPATIBLE DIGITAL IN-

TERFACES

DESCRIPTION

The TS5070 series are the second generation com-

bined PCM CODEC and Filter devices optimized

for digital switching applications on subscriber and

trunk line cards.

Using advanced switched capacitor techniques the

TS5070 and TS5071 combine transmit bandpass

and receive lowpass channel filters with a com-

panding PCM encoder and decoder. The devices

are A-law and µ-law selectable and employ a con-

ventional serial PCM interface capable of being

clocked up to 4.096 MHz. A number of programma-

ble functions may be controlled via a serial control

port.

September 2003

DIP20 (Plastic)

ORDERING NUMBER:TS5071N

PLCC28

ORDERING NUMBERS: TS5070FN

TS5070FNTR

Channel gains are programmable over a 25.4 dB

range in each direction, and a programmable filter

is included to enable Hybrid Balancing to be ad-

justed to suit a wide range of loop impedance con-

ditions.

Both transformer and active SLIC interface circuits

with real or complex termination impedances can

be balanced by this filter, with cancellation in ex-

cess of 30 dB being readily achievable when meas-

ured across the passband against standard test ter-

mination networks.

To enable COMBO IIG to interface to the SLIC con-

trol leads, a number of programmable latches are

included ; each may be configured as either an in-

put or an output. The TS5070 provides 6 latches

and the TS5071 5 latches.

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