Quad Differential Drivers
Description
Data Sheet January 1999
Quad Differential Drivers BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and BPPGA
Features
s
Pin-equivalent to the general-trade 26LS31 device, with improved speed, reduced power consumption, and significantly lower levels of EMI Four line drivers per package Meets ESDI standards 2.
0 ns maximum propagation delay Single 5.
0 V ± 10% supply Operating temperature range: −40 °C to +125 °C (wider than the 41 Series) 400 Mbits/s maximum data rate Logic to convert TTL input logic levels to differential, pseudo-ECL output logic levels No line loading when VCC = 0 (BDG1A, BDP1A only) High output driver for 50 Ω loads <0.
2 ns output skew (typical) On-chip 220 Ω loads available Third-state outputs available Surge-protection to ±60 V for 10 ms available (BPNGA, BPNPA, BPPGA) Available in four package types ESD performance better than the 41 Series Lower power requirement than the 41 Series
equivalent to the general-trade 26LS31, but offer increased speed, decreased power consumption, and significantly lower levels of electromagnetic interference (EMI).
They replace the Lucent 41 Series drivers.
The BDG1A device is the generic driver in this family and requires the user to supply external resistors on the circuit board for impedance matching.
The BDGLA is a low-power version of the BDG1A, reducing the power requirement by more than one half.
The BDGLA features a 3-state output with a typical third-state level of 0.
2 V.
The BDP1A is equivalent to the BDG1A but has 220 Ω termination resistors to ground on each driver output.
This eliminates the need for external pulldown resistors when driving a 100 Ω impedance line.
The BPNGA and BPNPA are equivalent to the BDG1A and BDP1A, respectively, except that a lightning protection circuit has been added to the driver outputs.
This circuit will absorb large transitions on the transmission lines without destroying the device.
The BPPGA combines the features of the BPNGA and BPNPA.
Two of the gates have their outputs terminate...
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