STU2071 Datasheet PDF | STMicroelectronics

STMicroelectronics STU2071

The coefficient of the equalizer and echo canceller are conserved during a power down. The analog front end consists of receive path RX and transmit path TX, providing a full duplex analog interfacing to the twisted pair telephone cable.

Part No.	STU2071
Datasheet	STU2071 Download
Manufacturer	STMicroelectronics
Description	4B3T U INTERFACE CIRCUIT
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DESCRIPTION

Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15, 16, 17 18 19 20 21 22 23 24,25 26, 27 28 Name DVSS(input) PFOFF(input) LT(input) TEST(input) DISS(output) RESETN(input) DIN(input) TSP(input) BURST(input) FR(in/out) DOUT(output) CL(in/out) RD1(output) RD2(output) S2,S1,S0 DVDD(input) AVSS(input) LOUT1(output) AVDD(input) AGND(input) LOUT2(output) LIN1,LIN2(input) XTAL1,XTAL2(inputs) CLS(output) Digital Ground. Power feed off. PFOFF=HIGH is coded by the A-bit indication HI accessible on DOUT. Active in LT mode only. LT/NT mode selection. Test Mode. A bit channel driven pin. Active in LT mode only. Hardware Reset. Digital interface input. Transmit single pulse. 1 KHz single pulse alternating positive and negative polarity is transmitted. Burst mode selection. Active in LT mode only. 8KHz Digital interface frame clock; input in LT and output in NT mode. Digital interface output. Digital interface bit clock; input in LT and output in NT mode. Power feeder relay driver. Power feeder relay driver.