LE78D110
Dual Channel SLIC/Codecs with DTMF
Product is discontinued and not allowed for new designs.
Use miSLIC Series or ZL880 - Enhanced Dual Channel Wideband FXS Line Interfaces instead.
Overview
The Le78D11 VoSLAC™ device has enhanced and optimized features to directly address the requirements of Voice over Broadband (VoB) applications. Their common goal is to reduce system level cost, board space, and power through higher levels of integration. In addition, this solution reduces the total cost of ownership of the end product by promoting higher quality of service through integrated line and self test capabilities. The Ve770 series chip set uses two devices to provide a completely software configurable solution to perform the BORSCHT functions for two lines, including provision of a single line battery voltage. The resulting system is less complex, smaller, and denser, yet cost-effective with minimal external components. Easy integration into the end application is enabled by the VoicePath™ API Software. Written in ANSI "C," the software development kit reduces the complexity of adding voice into a product and makes use of the more sophisticated chip set functions, such as Caller ID. It includes a management tool that works with the WinSLAC™ Coefficient Generator to easily support multiple market applications |
Features & Benefits
- Integrated Dual-Channel Chipset
- Switching regulator support
- 44-pin TQFP Package
- 3.3 V Operation
- Subscriber Loop Test/Self-Test
- GR-909 compliant drop test capability in both measurements and pass/fail
- Hazardous Potential
- Foreign Electromotive Force
- Resistive Faults
- Receive off-hook
- Ringers Test
- Loop length
- Real-time automatic line fault detection & reporting
- Loop Supervision
- AC/DC Faults
- Integrated self tests
- Loopback tests
- Checksum of programmed values
- GR-909 compliant drop test capability in both measurements and pass/fail
- µ-law, A-law, ADPCM or linear coding
- Industry Standard Interfaces
- PCM/SPI or GCI
- World Wide programmability:
- Ringing waveform generation and control
- Two-wire AC impedance
- Trans-hybrid balance with Adaptation
- Gain
- Programmable loop closure/ringtrip thresholds
- Metering Tone Generation
- Call Progress Tones
- DTMF Generation AND Detection
- FSK/Caller ID Tone Generation -Type I, Type II, & worldwide
- Modem/Fax Tone Detection
- Low power dissipation
Applications
Typical Applications
- Ideal for Short/Medium Loops of ~2000 ft, 26 AWG, and 5 REN loads
- Voice over IP/DSL, Integrated Access Devices, Smart Residential Gateways, Home Gateway/Router
- Cable Telephony, NIU, Set-Top Box, Home Side Box, Cable Modem, Cable PC
- Fiber, Fiber in the Loop (FITL), Fiber to the Home (FTTH)
- Wireless Local Loop, Intelligent PBX, ISDN NT1/TA