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STLC30R81 Datasheet

  • STLC30R81

  • INTEGRATED RINGING SLIC FOR SHORT LOOP APPLICATIONS

  • 198.72KB

  • 16頁

  • ETC

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STLC30R81
INTEGRATED RINGING SLIC
FOR SHORT LOOP APPLICATIONS
PRODUCT PREVIEW
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MONOCHIP SLIC SUITABLE FOR SHORT
LOOP APPLICATIONS
3.3V SUPPLY
IMPLEMENTS ALL KEY FEATURES OF THE
BORSHT FUNCTION
DIFFERENTIAL OR SINGLE-ENDED Rx
INPUTS
INTEGRATED TRAPEZOIDAL WAVEFORM
RINGING plus SINUSOIDAL and PWM
WAVEFORM RINGING CAPABILITY
TWO SELECTABLE PATH FOR SINUSOIDAL
RING INJECTION
SOFT BATTERY REVERSAL WITH
PROGRAMMABLE TRANSITION TIME
ON HOOK TRANSMISSION
LOW POWER DISSIPATION IN ALL
OPERATING MODES
AUTOMATIC DUAL BATTERY OPERATION
LOOP START, GROUND START FEATURES
SURFACE MOUNT PACKAGE
-40 TO +85擄C OPERATING RANGE
TEST FUNCTION
NO EXTERNAL COMPONENTS FOR POWER
DISSIPATION
TQFP44 (10 x 10) with slug
ORDERING NUMBER:
STLC30R81
functions (phone detection, loop-back, short circuit
detection) are integrated in this device. It provides
three ringing modes: Sinusoidal, Trapezoidal and
PWM waveform.
In sinusoidal ringing modes, depending on the CO-
DEC鈥檚 functionalities and characteristics Rxin+/Rxin-
or Rg+/Rg- paths can be selected. When CODEC
can manage low frequency signals Rxin+/ Rxin- will
be used.
This device can also limit the peak current during On-
Hook/Off-Hook transition and Ring-trip detection.
The device is based on BCD3S 90V technology and
it can work at 3.3V power supply.
The TQFP44 Package with SLUG increases the
SLIC performance in terms of power dissipation mak-
ing unnecessary the use of any external power com-
ponents.
DESCRIPTION
The STLC30R81 is a low voltage SLIC suitable for
short loop applications. All the BORSHT and test
BLOCK DIAGRAM
DET
GDK/AL
CRT
LINE STATUS
D0
D1
D2
D3
CS
RES
AC+
DC
AC
DC
BGND
LOGIC
INTERFACE
&
DECODER
ILT
TIP
SUPERVISION
COMMANDS
ILL
LINE
INTERFACE
RING
RLPBK
RG+
RG-
RXin+
RXin-
ZB
TX
AC
PROCESSOR
REFERENCE
&
BIAS SWITCHING
+
ILTF
DC
PROCESSOR
RLIM
RTH
ZAC1
ZAC
RS
CAC
IREF
V
CC
V
DD
AGND
CREV
CSVR
RD
D01TL518
July 2003
This is preliminary information on a new product now in development. Details are subject to change without notice.
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