SP319

® SP319 20Mbps, +5V-Only V.35 Interface with RS-232 (V.28) Control Lines s s s s s s s s s 20Mbps V.35 Data Throughput +5V-Only, Single Supply Operation 3 Drivers, 3 Receivers – V.35 4 Drivers, 4 Receivers – RS-232 Improved V.35 Receiver Propagation Delays No External V.35 Termination Resistors Required Termination Disable for V.35 80-pin QFP Surface Mount Packaging Pin Compatible with SP320 DESCRIPTION The SP319 is a complete V.35 interface transceiver offering 3 drivers and 3 receivers for V.35, and 4 drivers and 4 receivers for RS-232 (V.28). A Sipex patented charge pump allows +5V only low power operation. RS-232 drivers and receivers are specified to operate at 120kbps, all V.35 drivers and receivers operate up to 10Mbps. Typical Applications Circuit +5V Pinout 80 R1OUT 79 RCOUT3 78 R2OUT 77 RCB3 76 RCA3 75 NC 74 NC 73 VCC 72 GND 71 RCB1 70 RCA1 69 NC 68 R2IN 67 NC 66 R1IN 65 DRB3 64 GND 63 DRA3 62 VCC 61 DRA1 25, 33, 41, 62, 73 26 + 0.1µF + 0.1µF C1+ VCC VDD 27 32 + 0.1µF 30 C128 C2+ 31 C2- SP319 VSS 0.1µF + +5V 3 TS000 9 ENV35 75 ENT Vcc 400kΩ 100Ω RCA1 70 RCOUT 1 RCB1 71 RCA2 37 RCOUT2 20 RCB2 38 R1IN 66 R1OUT 80 R2IN 68 R2OUT 78 R3IN 35 5kΩ 5kΩ 100Ω 14 DRIN1 61 DRA1 Vcc 400kΩ 59 DRB1 13 T1IN Vcc 58 T1OUT 16 T2IN 400kΩ Vcc 400kΩ 54 T2OUT 17 T3IN Vcc 400kΩ 47 T3OUT 24 T4IN RCOUT1 1 NC 2 TS000 3 NC 4 NC 5 TTEN 6 RTEN 7 NC 8 ENV35 9 NC 10 NC 11 NC 12 T1IN 13 DRIN1 14 DRIN3 15 T2IN 16 T3IN 17 NC 18 R3OUT 19 RCOUT2 20 SP319 60 GND 59 DRB1 58 T1OUT ...