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參數(shù)資料
| 型號(hào)： | STLC30R81 |
| 英文描述： | INTEGRATED RINGING SLIC FOR SHORT LOOP APPLICATIONS |
| 中文描述： | 綜合振鈴用戶接口短環(huán)路應(yīng)用 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 196K |
| 代理商： | STLC30R81 |
1/16
STLC30R81
July 2003
This is preliminary information on a new product now in development. Details are subject to change without notice.
I
MONOCHIP SLIC SUITABLE FOR SHORT
LOOP APPLICATIONS
I
3.3V SUPPLY
I
IMPLEMENTS ALL KEY FEATURES OF THE
BORSHT FUNCTION
I
DIFFERENTIAL OR SINGLE-ENDED Rx
INPUTS
I
INTEGRATED TRAPEZOIDAL WAVEFORM
RINGING plus SINUSOIDAL and PWM
WAVEFORM RINGING CAPABILITY
I
TWO SELECTABLE PATH FOR SINUSOIDAL
RING INJECTION
I
SOFT BATTERY REVERSAL WITH
PROGRAMMABLE TRANSITION TIME
I
ON HOOK TRANSMISSION
I
LOW POWER DISSIPATION IN ALL
OPERATING MODES
I
AUTOMATIC DUAL BATTERY OPERATION
I
LOOP START, GROUND START FEATURES
I
SURFACE MOUNT PACKAGE
I
-40 TO +85°C OPERATING RANGE
I
TEST FUNCTION
I
NO EXTERNAL COMPONENTS FOR POWER
DISSIPATION
DESCRIPTION
The STLC30R81 is a low voltage SLIC suitable for
short loop applications. All the BORSHT and test
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’s 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.
TQFP44 (10 x 10) with slug
ORDERING NUMBER:
STLC30R81
PRODUCT PREVIEW
INTEGRATED RINGING SLIC
FOR SHORT LOOP APPLICATIONS
BLOCK DIAGRAM
BGND
ILTF
D2
D1
D0
RS
ZAC
IREF
V
CC
RING
D01TL518
DET
GDK/AL
CAC
AGND
CREV
CSVR
LOGIC
INTERFACE
&
DECODER
SUPERVISION
COMMANDS
LINE STATUS
ILT
LINE
INTERFACE
ILL
TIP
RLPBK
CRT
REFERENCE
&
BIAS SWITCHING
DC
PROCESSOR
+
AC+
DC
AC
DC
RLIM
RTH
ZB
RXin-
RXin+
RG-
RG+
TX
V
DD
RD
AC
PROCESSOR
ZAC1
D3
CS
RES
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