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Rainbow Electronics DS2152 User Manual

Page 60

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DS2152

031897 60/79

DS2152 JITTER ATTENUATION Figure 14–4

FREQUENCY (Hz)

0 dB

–20 dB

–40 dB

–60 dB

1

10

100

1K

10K

J

IT

TER AT

TEN

U

A

T

IO

N

(

d

B)

100K

CURVE A

CURVE B

DS2152 JITTER
ATTENUATION
CURVE

TR 62411 (DEC. 90)

PROHIBITED AREA

15.0 TIMING DIAGRAMS

RECEIVE SIDE D4 TIMING Figure 15–1

1

2

3

4

5

6

7

8

9

10

11

12

FRAME#

1

2

3

4

5

RSYNC

1

/

RFSYNC

RSYNC

2

RSYNC

3

RLINK

4

RLINK

NOTES:

1. RSYNC in the frame mode (RCR2.4=0) and double–wide frame sync is not enabled (RCR2.5=0).

2. RSYNC in the frame mode (RCR2.4=0) and double–wide frame sync is enabled (RCR2.5=1).

3. RSYNC in the multiframe mode (RCR2.4=1).

4. RLINK data (Fs bits) is updated one bit prior to even frames and held for two frames.

5. RLINK and RLCLK are not synchronous with RSYNC when the receive side elastic store is enabled.