LTC1327

5

PI FU CTIO S

against ESD to

±10kV for human body model discharges.

RX IN: Receiver Inputs. These pins can be forced to

±25V

without damage. The receiver inputs are protected against

ESD to

±10kV for human body model discharges. Each

receiver provides 0.4V of hysteresis for noise immunity.

RX OUT: Receiver Outputs With TTL/CMOS Voltage Lev-

els. Outputs are in a high impedance state when in SHUT-

DOWN mode to allow data line sharing.

These pins require two external capacitors C = 0.1

µF. One

maintain charge pump efficiency, the capacitor’s effective

series resistance should be less than 20

Ω.

DR IN: EIA/TIA-562 Driver Input Pins. Inputs are TTL/

CMOS compatible. Inputs should not be allowed to float.

DR OUT: Driver Outputs at EIA/TIA-562 Voltage Levels.

Outputs are in a high impedance state when in SHUT-

ESD Test Circuit

Driver Timing Test Load

Receiver Timing Test Load

RX

RX IN

51pF

RX

OUTPUT

1327 TC03

TEST CIRCUITS

DR1 OUT

RX1 IN

DR2 OUT

RX2 IN

RX3 IN

RX4 IN

DR3 OUT

RX5 IN

ON/OFF

NC

LT1327 • TC01

C1

0.1

µF

EIA/TIA 562

LINE PINS

PROTECTED

TO ±10kV

LTC1327

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

DR1 IN

RX1 OUT

DR2 IN

RX2 OUT

RX3 OUT

RX4 OUT

DR3 IN

RX5 OUT

GND

C2

0.1

µF

C3

0.1

µF

C4

0.1

µF

DR

DRIVER

INPUT

3k

51pF

DRIVER

OUTPUT

1327 TC02