STLC3075 Datasheet, PDF (1/26 Pages) STMicroelectronics – INTEGRATED POTS INTERFACE FOR HOME ACCESS GATEWAY AND WLL

STLC3075
INTEGRATED POTS INTERFACE
FOR HOME ACCESS GATEWAY AND WLL
1 FEATURES
■ MONOCHIP SLIC OPTIMISED FOR WLL &
VoIP APPLICATIONS
■ IMPLEMENT ALL KEY FEATURES OF THE
BORSHT FUNCTION
■ SINGLE SUPPLY (4.5 TO 12V)
■ BUILT IN DC/DC CONVERTER
CONTROLLER.
■ SOFT BATTERY REVERSAL WITH
PROGRAMMABLE TRANSITION TIME.
■ ON-HOOK TRANSMISSION.
■ PROGRAMMABLE OFF-HOOK DETECTOR
THRESHOLD
■ METERING PULSE GENERATION AND FILTER
■ INTEGRATED RINGING
■ INTEGRATED RING TRIP
■ PARALLEL CONTROL INTERFACE (3.3V
LOGIC LEVEL)
■ PROGRAMMABLE CONSTANT CURRENT
FEED
■ SURFACE MOUNT PACKAGE
■ INTEGRATED THERMAL PROTECTION
■ DUAL GAIN VALUE OPTION
■ AUTOMATIC RECOGNITION FLYBACK AND
Figure 2. Block Diagram
PD D0 D1 D2
Figure 1. Package
TQFP44
Table 1. Order Codes
Part Number
STLC3075
Package
TQFP44
BUCKBOOST CONFIGURATION
■ BCDIIIS 90V TECNOLOGY
■ -40 TO +85°C OPERATING RANGE
2 DESCRIPTION
The STLC3075 is a SLIC device specifically de-
signed for WLL (Wireless Local Loop), and ISDN-
Terminal Adaptors and VoIP applications. One of
the distinctive characteristic of this device is the
ability to operate with a single supply voltage (from
+4.5V to +12V) and self generate the negative bat-
tery by means of an on chip DC/DC converter con-
troller that drives an external MOS switch.
DET
January 2005
GAIN
SETTING
TX
RX
ZAC1
ZAC
RS
ZB
CKTTX
CTTX1
CTTX2
FTTX
INPUT LOGIC AND DECODER
Status and functions
AC PROC
SUPERVISION
OUTPUT LOGIC
LINE
DRIVER
OUTPUT
STAGE
BGND
TIP
RING
TTX PROC
REFERENCE ^Vcc
Vss
Agnd
RTTX CAC ILTF RD IREF RLIM RTH
DC PROC
CREV
CSVR
DC/DC
CONV.
VOLT.
REG.
Vbat
CLK
RSENSE
GATE
VF
CZ
CVCC
VPOS
VBAT
AGND
Rev. 3
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