LSI (LSI Logic Corperation ) : SpeedREACH AR8201

5V Analog Front End

The SpeedREACH AR8201 is a Analog Front End (AFE) designed to perform all of the analog functions of the receive (RX) and transmit (TX) paths for ADSL customer premise modems — full-rate and G.lite. The AR8201 is also the industry’s first AFE to offer the integrated combination of a +5 V line driver and digitally controlled crystal oscillator (DCXO), eliminating the need for a +12 V supply required when using an external line driver.

Features ADSL CPE AFE with full RX and TX analog signal path Compatible with both ITU G.992.1 and (G.dmt) and G.992.2 (G.lite) standards Integrated line driver capable of driving +13 dBm onto the line using a 4.25:1 transformer Low-power wakeup detector for G.hs (G.994.1) and ANSI T1E1.413 Issue 7 wakeup protocol Programmable interface for RX/TX digital data Integrated DCXO Power: 1W (driving +13 dBm DMT signal onto the line) Line driver total harmonic distortion for 138 kHz sinewave at 7.4 V peak-to-peak differential with either (a) 11 W resistance load or (b) 5.5 W resistance and 4.25:1 transformer: -85 dB 14-bit linear 4.4 MS/s ADCs and 14-bit linear 4.4 MS/s DACs 4th-order low-pass filters for RX/TX paths with a ±5% cutoff frequency accuracy TX channel: support for 138 kHz and 276 kHz (for ADSL over ISDN) RX channel: support for both 552 kHz (G.lite) and 1.104 MHz (G.dmt) Entire RX channel linearity: 80 dB MTPR and TX channel linearity: 80 dB MTPR RX input-referred noise at peak gain: –160 dBm/Hz at 300 kHz

Technology:	ADSL
Package:	unknown 0 Pin
Linux support:	No