LTC1544 datasheet(5/20 Pages) LINER

5 / 20 page

LTC1544

VCC (Pin 1): Positive Supply for the Transceivers. 4.75V ≤

VCC ≤ 5.25V. Connect a 1µF capacitor to ground.

VDD (Pin 2): Positive Supply Voltage for V.28. Connect to

VDD Pin 3 on LTC1543 or 8V supply. Connect a 1µF

capacitor to ground.

D1 (Pin 3): TTL Level Driver 1 Input.

D2 (Pin 4): TTL Level Driver 2 Input.

D3 (Pin 5): TTL Level Driver 3 Input.

R1 (Pin 6): CMOS Level Receiver 1 Output.

R2 (Pin 7): CMOS Level Receiver 2 Output.

R3 (Pin 8): CMOS Level Receiver 3 Output.

D4 (Pin 9): TTL Level Driver 4 Input.

R4 (Pin 10): CMOS Level Receiver 4 Output.

M0 (Pin 11): TTL Level Mode Select Input 0 with Pull-Up

to VCC.

M1 (Pin 12): TTL Level Mode Select Input 1 with Pull-Up

to VCC.

M2 (Pin 13): TTL Level Mode Select Input 2 with Pull-Up

to VCC.

DCE/DTE (Pin 14): TTL Level Mode Select Input with

Pull-Up to VCC.

INVERT (Pin 15): TTL Level Mode Select Input with Pull-

Up to VCC.

D4/R4 A (Pin 16): Receiver 4 Inverting Input and Driver 4

Output.

R3 B (Pin 17): Receiver 3 Noninverting Input.

R3 A (Pin 18): Receiver 3 Inverting Input.

R2 B (Pin 19): Receiver 2 Noninverting Input.

R2 A (Pin 20): Receiver 2 Inverting Input.

D3/R1 B (Pin 21): Receiver 1 Noninverting Input and

Driver 3 Noninverting Output.

D3/R1 A (Pin 22): Receiver 1 Inverting Input and Driver 3

Inverting Output.

D2 B (Pin 23): Driver 2 Noninverting Output.

D2 A (Pin 24): Driver 2 Inverting Output.

D1 B (Pin 25): Driver 1 Noninverting Output.

D1 A (Pin 26): Driver 1 Inverting Output.

GND (Pin 27): Ground.

VEE (Pin 28): Negative Supply Voltage. Connect to VEE Pin

26 on LTC1543 or to – 8V supply. Connect a 1

µF capacitor

to ground.

Figure 1. V.11 Driver Test Circuit

1544 F02

100

Ω

100pF

15pF

1544 F01

VOD

VOC

Ω

Figure 2. V.11 Driver/Receiver AC Test Circuit

PI FU CTIO S

TEST CIRCUITS

LTC1544 Datasheet(PDF) 5 Page - Linear Technology

LTC1544 Datasheet(HTML) 5 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Datasheet Download

Link URL