72

FIGURE 2. RECEIVER DECODER OPERATION TIMING WAVEFORMS - HDB3 TO NRZ DECODING

FIGURE 3. TRANSMITTER CODER TIMING WAVEFORMS

FIGURE 4. INPUT REQUIREMENTS AND OUTPUT CHARACTERISTICS

CKR

-HDB3 IN

+HDB3 IN

HDB3 RECEIVED SIGNAL

EXTERNALLY

SPLIT

CRX

EXTERNALLY

GENERATED

NRZ - OUT

HANDLING DELAY

NRZ - IN

+HDB3 OUT

OR

-HDB3 OUT

10%

90%

50%

CTX

90%

50%

10%

50%

50%

50%

50%

50%

+HDB3 IN

-HDB3 IN

CKR

NRZ - OUT

CRX

CD22103A