THS7103 Datasheet | Texas Instruments

SLOS387 - DECEMBER 2001 ADSL (ISDN) CENTRAL OFFICE LINE INTERFACE DRIVER/RECEIVER Features D 15-V Single Supply Operation D Low 1.1-W Total Power Consumption - 0.9-W Transmit Drivers - 0.2-W Receive Channel D Active Termination Differential Line Drivers - No Line Matching Resistors Reduces Output Voltage and Power Consumption by up to 50% D Integrated Differential Receivers D Includes Analog Filters in Both Transmit and Received Channels D Multiple Power Saving Modes - Bias Current Is Adjustable in 20% Increments to Allow Lower Power Modes for Short Line Lengths APPLICATIONS D Full Rate ADSL Central Office Line Driver/Receiver for ISDN Applications DESCRIPTION The THS7103 is a low power differential ADSL (ISDN) central office line interface driver/receiver. It Features active termination drivers that eliminate the matching resistors required with traditional ADSL line drivers. Removal of the matching resistors allows the THS7103 to output nearly half the output voltage as pared with traditional drivers, resulting in power savings of up to 50%. The lower output voltage levels resulting from the active termination also allow the THS7103 to operate on a single 15-V supply, easing power supply requirements. The THS7103 also Features integrated differential receivers to reduce the ponent count on multichannel ADSL line cards. To reduce valuable PCB space further, the transmit path integrates a band-pass filter while the receive path integrates a low-pass filter. Four power-saving modes are featured on this device, allowing it to operate at lower power levels for shorter line lengths. VFP PACKAGE (TOP VIEW) TXINN TXINP TXCM TXEN1 TXEN2 VCCL GND NC BUFEN 1BUFOUT 1BUFIN RXOUTP RXOUTN 2BUFIN 2BUFOUT RXCM 32 31 30 29 28 27 26 25 Power PAD 9 10 11 12 13 14 15 16 VCCOP1 TXAS1 TXAF TXAS2 VCCON TXBS2 TXBF TXBS1 RXMO RXMI RXMN VAG RXPN RXPI RXPO...