CD22103A
CMOS HDB3 (High Density Bipolar 3 Transcoder for 2.048/8.448Mb/s Transmission Applications
Typical Diagram
Key Features
- HDB3 Coding and Decoding for Data Rates from 50Kb/s to 10Mb/s in a Manner Consistent with CCITT G703 Recommendations
- HDB3/AMI Transmission Coding/Reception Decoding with Code Error Detection is Performed in Independent Coder and Decoder Sections
- All Transmitter and Receiver Inputs/Outputs are TTL Compatible
- Internal Loop Test Capability
- Pin and Functionally Compatible with Type MJ1471
Description
The CD22103A is an LSI SOS integrated circuit which performs the HDB3 transmission coding and reception decoding functions with error detection. It is used in 2.048Mb/s and 8.448Mb/s transmission applications. The CD22103A performs HDB3 coding and decoding for data rates from 50Kb/s to 10Mb/s in a manner consistent with CCITT G703 recommendations.
HDB3 transmission coding/reception decoding with code error detection is performed in independent coder and decoder sections. All transmitter and receiver inputs/outputs are TTL compatible.
The HDB3 transmitter coder codes an NRZ binary unipolar input signal (NRZ-IN) and a synchronous transmission clock (CTX) into two HDB3 binary unipolar RZ output signals (+HDB3 OUT, -HDB3 OUT). The TTL compatible output signals +HDB3 OUT, -HDB3 OUT are externally mixed to generate ternary bipolar HDB3 signals for driving transmission lines.
The receiver decoder converts binary unipolar inputs (+HDB3 IN, -HDB3 IN), which were externally split from ternary bipolar HDB3 signals, and a synchronous clock signal (CRX) into binary unipolar NRZ signals (NRZ-OUT). The CD22103A operates with a 5V ±10% power supply voltage over the full military temperature range at data rates from 50Kb/s up to 10Mb/s.
