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E-STLC3085 View Datasheet(PDF) - STMicroelectronics

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E-STLC3085 Datasheet PDF : 28 Pages
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STLC3085
Integrated Pots Interface
for Home Access Gateway and WLL
Preliminary Data
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
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 buckboost
configuration
BCDIIIS 90V technology
-40 to +85°C operating range
Description
The STLC3085 is a SLIC device specifically
designed for WLL (Wireless Local Loop), and
ISDN Terminal Adaptors and VoIP applications.
One of the distinctive characteristic of this device
TQFP44
is the ability to operate with a single supply
voltage (from +4.5V to +12V) and self generate
the negative battery by means of an on chip DC/
DC converter controller that drives an external
MOS switch.
The battery level is properly adjusted depending
on the operating mode. A useful characteristic for
these applications is the integrated ringing
generator.
The control interface is a parallel type with open
drain output and 3.3V logic levels. Constant
current feed can be set from 20mA to 25mA.
Off-hook detection threshold is programmable
from 5mA to 9mA.
The device, developed in BCDIIIS technology
(90V process), operates in the extended
temperature range and integrates a thermal
protection that sets the device in power down
when Tj exceeds 140°C..
Order codes
Part number
E-STLC3085 (*)
Temp range, °C
-40 to 85
Package
TQFP44
Packing
Tube
(*) ECOPACK® (see Section 5)
February 2006
Rev 1
1/28
www.st.com
28
 

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