CD22103A_02 Datasheet, PDF (1/6 Pages) Intersil Corporation – CMOS HDB3 (High Density Bipolar 3 Transcoder for 2.048/8.448Mb/s Transmission Applications

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November 2002
CD22103A
FN1310.4
CMOS HDB3 (High Density Bipolar 3
Transcoder for 2.048/8.448Mb/s
Transmission Applications
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.
Block Diagram
HDB3/AMI
CTX
NRZ-IN
ENCODER
IN
TRANSMITTER
CODER
+HDB3 OUT
-HDB3 OUT
CKR
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
Part Number Information
PART
NUMBER
CD22103AD
CD22103AE
TEMP. RANGE
(^oC)
PACKAGE
-55 to 125 16 Ld SBDIP
-40 to 85 16 Ld PDIP
PKG. NO.
D16.3
E16.3
Pinout
CD22103A (PDIP, SBDIP)
TOP VIEW
NRZ-IN 1
CTX 2
HDB3/AMI 3
NRZ-OUT 4
CRX 5
RAIS 6
AIS 7
V_{SS 8}
16 VDD
15 +HDB3 OUT
14 -HDB3 OUT
13 +HDB3 IN
12 LTE
11 -HDB3 IN
10 ^CKR
9 ERR
LTE
+HDB3 IN
-HDB3 IN
CRX
DECODER
REQUIRES CLOCK
RECOVERY CIRCUIT
RECEIVER
DECODER ^NRZ-OUT
ERROR
DETECT
ERR
RAIS
AIS
DETECT
AIS
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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