HC-5560_03 Datasheet, PDF (8/10 Pages) Intersil Corporation – PCM Transcoder

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”.
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