LE58QL063
Codec/Filter SLAC Device
Overview
We are transitioning to Microchip; this page will be directed to Le58QL063 product page at www.microchip.com.
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Microsemi's cost-effective, software-programmable solution is the Le58QL02/021/031 QLSLAC and the Le58QL061/063 QLSLAC line of DSP-based voice codec/filters. The four-channel QLSLAC devices handle the analog-to-digital and digital-to-analog conversion, filtering, compression and expansion functions required to interface a telephone's analog voice signals to the digital PCM highway or General Circuit Interface (GCI) |
Features & Benefits
- Low-power, 3.3 V CMOS technology with 5 V tolerant digital inputs
- Pin programmable PCM/MPI or GCI interface
- Software and coefficient compatible to the Le79Q061/ 063 QSLAC device
- Standard PCM/microprocessor interface (PCM/MPI mode)
- Single or Dual PCM ports available
- Time slot assigner (up to 128 channels per port)
- Clock slot and transmit clock edge options
- Optional supervision on the PCM highway
- 1.536, 1.544, 2.048, 3.072, 3.088, 4.096, 6.144, 6.176, or 8.192 MHz master clock derived from MCLK or PCLK
- 0P access to PCM data
- Real Time Data with interrupt (open drain or TTL)
- Broadcast mode
- General Circuit Interface (GCI mode)
- Control and PCM data on a single port
- 2.048 Mbits/s data rate
- 2.048 MHz or 4.096 MHz clock option
- Performs the functions of four codec/filters
- Software programmable:
- SLIC device input impedance and Transhybrid balance
- Transmit and receive gains and Equalization
- Programmable Digital I/O pins with debouncing
- A-law, 0-law, or linear coding
- Built-in test modes with loopback, tone generation, and 0P access to PCM data
- Mixed state (analog and digital) impedance scaling
- Performance guaranteed over a 12 dB gain range
- Supports multiplexed SLIC device outputs
- 256 kHz or 293 kHz chopper clock for SLIC devices with switching regulator
- Maximum channel bandwidth for V.90 modems
