MV1442
Features
- On-chip Digital Clock Regenerator
- HDB3 Encoding and Decoding to CCITT Remendation G.703
- Asynchronous Operation
- Simultaneous Encoding and Decoding
- Clock Recovery Signal allows Off-chip Clock Regeneration
- Loop Back Control
- HDB3 Error Monitor
- ‘All Ones’ Error Monitor
- Loss of Input Alarm
- Low Power Operation
- 2.048MHz or 1.544MHz Operation in External or Internal Clock Recovery mode
- 8.448MHz Operation in External Clock Recovery mode
NRZ DATA IN ENCODER CLOCK LOSS OF INPUT NRZ DATA OUT DECODER CLOCK RESET AIS AIS MODE GND
1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10
VDD TXD2 TXD1 RXD2 LOOP TEST ENABLE RXD1 CRYSTAL OUT/CDR DOUBLE VIOLATION CRYSTAL IN
MP18 (WIDE BODY)
Figure 1
- Pin connections
- top view
Absolute Maximum Ratings
VDD Inputs Outputs Storage temperature -0.5V to +7V VDD -0.5V to GND -0.5V VDD -0.5V to GND -0.5V -55°C to +125°C
NRZ DATA IN ENCODER CLOCK MODE CRYSTAL CRYSTAL IN OUT/CDR
ENCODER
CLOCK REGENERATOR
DECODER CLOCK
RXD 1...
