器件名称:
E-STLC3055N
功能描述:
WLL & ISDN-TA SUBSCRIBER LINE INTERFACE CIRCUIT
文件大小:
315.8KB 共25页
简 介:
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 1. Package TQFP44 Table 1. Order Codes Part Number STLC3055N E-STLC3055N (*) Package TQFP44 TQFP44 (*) ECOPACK (see Section 9) 2 DESCRIPTION The STLC3055N is a SLIC device specifically designed for WLL (Wireless Local Loop) and ISDNTerminal 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 battery by means of an on chip DC/DC converter controller that drives an external MOS switch. Figure 2. Block Diagram PD D0 D1 D2 DET GAIN SETTING INPUT LOGIC AND DECODER OUTPUT LOGIC BGND Status and functions TIP TX RX ZAC1 ZAC RS ZB LINE OUTPUT SUPERVISION AC PROC DRIVER STAGE RING CREV DC PROC CSVR CLK RSENSE GATE VF DC/DC CKTTX CTTX1 CTTX2 FTTX CONV. TTX……