CMX264D5 Просмотр технического описания (PDF) - CML Microcircuits

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CMX264D5

Frequency Domain Split Band Scrambler

CML Microcircuits 

Frequency Domain Split Band Scrambler

CMX264

The bits are used as follows:

D2 Tx Channel Input Pre-Emphasis

D3 Tx Channel Output De-Emphasis

D4 Rx Channel Input Pre-Emphasis

D5 Rx Channel Output De-Emphasis

In all cases, setting the relevant bit to 1 selects the block. Resetting the bit to 0 bypasses and

powersaves it.

1.5.3.6 Scramble Mode - Split Point Selection (D1, D0)

D10 D9 D8

0

0 MICO

Output

Control

D7

RECO

Output

Control

D6

EXTO

Output

Control

D5 D4 D3 D2 D1 D0

Pre/De-Emphasis

Select/Bypass

0

0

0

1

1

0

1

1

Split

Point

(Hz)

1966

1482

1276

1027

Lower

Carrie

r

(Hz)

2244

1759

1551

1304

Upper

Carrie

r

(Hz)

5132

4618

4398

4198

Table 7: Split Point Selection

Bits D1, D0 operate in scramble mode only and are used to select the split point.

© 1999 Consumer Microcircuits Limited

12

D/CMX264/1

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