STLC3075 Integrated POTS interface for home access gateway and WLL

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 parallel with open drain output and 3.3 V logic levels.

The metering pulses are generated on-chip starting from two logic signals (0 and 3.3 V): one signal defining the metering pulse frequency, the other signal defining the metering pulse duration.

An on-chip circuit then provides the proper shaping and filtering. Metering pulse amplitude and shaping (rising and decay time) can be programmed by external components.

A dedicated cancellation circuit avoids possible codec input saturation due to metering pulse echo.

Constant current feed can be set from 20 mA to 40 mA. Off-hook detection threshold is programmable from 5 mA to 9 mA.

The device, which is developed in BCDIIIS technology (90 V process), operates in the extended temperature range and integrates a thermal protection that sets the device in power down when Tj exceeds 140 °C.

技术特性

Monochip SLIC optimized for WLL & VoIP applications
Implements all Borsht function key features
Single supply (4.5 V to 12 V) for fly-back configuration
Single supply (5.5 V to 12 V) for buck-boost configuration
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 (3.3 V 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 °C to +85 °C operating range

功能框图

STLC3075 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
E-STLC3075TR	Active			LQFP 44 10x10x1.4	Tape And Reel		E-STLC3075TR
E-STLC3075	Active			LQFP 44 10x10x1.4	Tray		E-STLC3075

DATASHEET

描述	版本	大小
STLC3075 : WLL and ISDN-TA subscriber line interface circuit	11	320KB

APPLICATION NOTES

描述	版本	大小
AN2132: STLC3075 VERY LOW SINGLE SUPPLY SLIC FOR WLL APPLICATION IN FLY-BACK CONFIGURATION	3	343KB
AN2118: STLC3075 SINGLE SUPPLY SLIC FOR WLL APPLICATION IN BUCK-BOOST CONFIGURATION	3	254KB

USER MANUALS

描述	版本	大小
UM0271: Evaluation board with STLC3075 SLIC for WLL	1	414KB