HC-5560 데이터 시트보기 (PDF) - Intersil

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HC-5560

PCM Transcoder

Intersil 

Timing Waveforms (Continued)

HC-5560

CLK DEC

RESET AIS

NRZ DATA OUT

AIS

FIGURE 5.

Zeros which occur during a high to low transition of Reset AIS are counted with the zeros that occurred before the high to low

transition.

NRZ DATA IN

CLK ENC

OUT 1

AMI

OUT 2

HDB3

OUT 1

OUT 2

S

S

S

S

S

B6ZS

OUT 1

OUT 2

S

S

S

S

B8ZS

OUT 1

OUT 2

3 1/2 CYCLES

5 1/2 CYCLES

S

S

S

FIGURE 6. ENCODE TIMING AND DELAY

Data is clocked on the negative edge of CLK ENC and appears on OUT1 and OUT2. OUT1 and OUT2 are interchangeable.

Bipolar violations and all other pulses inserted by the line coding scheme to encode strings of zeros are labeled with an “S”.

8

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