LTC2854/LTC2855

8

285455fa

RO (Pin 1): Receiver Output. If the receiver output is enabled

(⎯R⎯E low) and A > B by 200mV, then RO will be high. If A

< B by 200mV, then RO will be low. If the receiver inputs

are open, shorted, or terminated without a signal, RO will

be high.

⎯R⎯E (Pin 2): Receiver Enable. A low enables the receiver.

A high input forces the receiver output into a high imped-

ance state.

DE (Pin 3): Driver Enable. A high on DE enables the driver.

A low input will force the driver outputs into a high imped-

ance. If ⎯R⎯E is high with DE and TE low, the part will enter

a low power shutdown state.

DI (Pin 4): Driver Input. If the driver outputs are enabled

(DE high), then a low on DI forces the driver positive out-

put low and negative output high. A high on DI, with the

driver outputs enabled, forces the driver positive output

high and negative output low.

(DD/DE/GN)

TE (Pin 5): Internal Termination Resistance Enable. A high

input will connect a termination resistor (120Ω typical)

between pins A and B.

GND (Pins 6,11/6,13/6): Ground. Pins 11 and 13 are

backside thermal pad, connected to Ground.

Y (Pins NA/8/12): Positive Driver Output for LTC2855.

Z (Pins NA/9/13): Negative Driver Output for LTC2855.

B (Pins 9/10/14): Negative Receiver Input (and Negative

Driver Output for LTC2854).

A (Pins 8/11/15): Positive Receiver Input (and Positive

Driver Output for LTC2854).

3.6V. Bypass with 0.1μF ceramic capacitor.

PIN FUNCTIONS