ST70136

Supply Voltage(AVDD,DVDD)                         -0.3V to 6V
Input Voltage -0.3V to AVDD,DVDD               + 0.3V
Input current per pin                                    -10mA to + 10mA
Output current per pin                                 -20mA to + 20mA
Storage Temperature                                   -65°C to 150°C
ESD Protection                                              2000V

The ST70136 ADSL Analog Front End (AFE) chip implements the analog transceiver functions required in a Customer Premise ADSL modem. It connects the digital modem chip with the loop driver and hybrid balance circuits.

The AFE has been designed with high dynamic range in order to greatly reduce the external filtering requirements at the front end.

The ST70136 chip and its companion digital chip along with a loop driver, implement the complete G.992.2 and G.992.1 DMT modem solution.

The AFE receive path contains a programmable gain amplifier (RxPGA), a low pass anti-aliasing filter, and a 12-bit A/D converter. The RxPGA is digitally programmable from 0 to 31dB in 1dB steps.

The ST70136 transmit path consists of a 14-bit D/A converter, followed by a programmable gain amplifier (TxPGA). The transmit gain is programmable from 0 to -15dB in 1dB steps.