LTC1324(RevA) View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC1324
(Rev.:RevA)

Single Supply LocalTalk® Transceiver

Linear Technology 

LTC1324

TEST CIRCUIT

TXD+

RL

VOD

TXD–

RL VOC

1324 F01

Figure 1

TXI

TXD+

RL

TXD–

CL RXD+

CL RXD–

RXDO

15pF

Figure 2

1324 F02

OUTPUT

VCC

S1

500Ω

CL

S2

1324 F03

Figure 3

SWITCHING WAVEFORMS

3V

TXD

0V

VO

–VO

TXD–

TXD+

1.5V

f = 1MHz: tr ≤ 10ns: tf ≤ 10ns

1.5V

tPLH

50%

10%

tr

90% VDIFF = V(TXD+) – V(TXD–)

1/2 VO

tPHL

90%

50%

10%

tf

VO

tSKEW

tSKEW

Figure 4. Differential Driver

3V

TXDEN

0V

5V

TXD+, TXD–

VOL

VOH

TXD–, TXD+

0V

1.5V

tZL

tZH

f = 1MHz: tr ≤ 10ns: tf ≤ 10ns

1.5V

tLZ

2.3V

OUTPUT NORMALLY LOW

tHZ

OUTPUT NORMALLY HIGH

2.3V

0.5V

0.5V

Figure 5. Differential Driver Enable and Disable

VOD2

(RXD+) – (RXD–)

–VOD2

VOH

RXDO

VOL

0V

f = 1MHz: tr ≤ 10ns: tf ≤ 10ns

tPLH

1.5V

0V

tPHL

1.5V

Figure 6. Differential Receiver

1324 F04

1324 F05

1324 F06

6

1324fa

Share Link: