STLC3055N Datasheet, PDF (1/25 Pages) STMicroelectronics – WLL & ISDN-TA SUBSCRIBER LINE INTERFACE CIRCUIT

STLC3055N
WLL & ISDN-TA SUBSCRIBER LINE INTERFACE CIRCUIT
1 FEATURES
■ MONOCHIP SLIC OPTIMISED FOR WLL &
VoIP APPLICATIONS
■ IMPLEMENT ALL KEY FEATURES OF THE
BORSHT FUNCTION
■ SINGLE SUPPLY (5.5 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
■ BCD III S, 90V TECHNOLOGY
■ -40 TO +85°C OPERATING RANGE
Figure 2. Block Diagram
PD D0 D1 D2
Figure 1. Package
TQFP44
Table 1. Order Codes
Part Number
STLC3055N
E-STLC3055N ^(*)
(*) ECOPACK® (see Section 9)
Package
TQFP44
TQFP44
2 DESCRIPTION
The STLC3055N 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
+5.5V 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
February 2006
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
DC PROC
CREV
CSVR
DC/DC
CONV.
CLK
RSENSE
GATE
VF
VOLT.
REG.
Vbat
CVCC
VPOS
VBAT
RTTX CAC ILTF RD IREF RLIM RTH
AGND
Rev. 10
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