XR-T5683A Datasheet, PDF(5/12 Page) Exar Corporation

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XR-T5683A Datasheet, PDF (5/12 Pages) Exar Corporation – PCM Line Interface Chip

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XR-T5683A

Table 1 shows typical expected jitter tolerance. The

following measurements have been done at a

transmission rate of T1 (1.544MHz). (See Figure 2).

Jitter

10Hz

100Hz

500Hz

1kHz

2kHz

3kHz

4kHz

1.544Mbs in UI

>10UI

6.5UI

3.3UI

2.1UI

1.5UI

Jitter

5kHz

8kHz

10kHz

32kHz

50kHz

77kHz

1.544Mbs in UI

1.3UI

0.8UI

0.7UI

0.5UI

0.45UI

VCC = +5V "5%, TA = 25Â°C

Table 1. Jitter Tolerance at 1.544Mbps with 6db Cable Loss

Jitter

Generator

HP3785B

(transmitter

side)

Clock

6db Cable Attenuation

Pattern

Generator

HP3781B

RXDATA+

XR-T5683A

RXDATA-

RPOS

RCLK

RNEG

Clock

Phase

Shift

Circuit

TPOS

XR-T5683A

TCLK

TNEG

TXDATA+

TXDATA-

Figure 2. Jitter Measurement Set-up

Jitter

Analyzer

HP3785B

(Receive Side)

Rev. 2.01

▷