AHA4524 - AHA

AHA4524 TURBO PRODUCT CODE ENCODER/DECODER

Figure 3: Comparison of TPC Code Types TPC @ 3 Iterations 1.E+00 1.E-01 1.E-02 1.E-03 Uncoded BPSK RS(255,239) R=.937 TPC(64,63)x(64,62)+ R=.954 TPC(64,57)x(64,62)+ R=.863 TPC(64,57)^2 R=.793 TPC(32,26)x(32,26)x(4,3 ) R=.495 Bit Error Rate P(e) 1.E-04 1.E-05 1.E-06 1.E-07 1.E-08 1.E-09 1.E-10 0 1 2 3 4 5 6 7 8 9 10 Eb/No (dB) comtech aha corporation F.

Features

PERFORMANCE:
• 60 Mbit/sec channel rate and 50 Mbit/sec payload data rate for (64,57)x(64,57) code with 3 iterations
• Integrated 16 bit scrambler and descrambler
• Integrated 32 bit CRC computation and verification
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• 3.3V I/O, 1.8V core operation 5V tolerant inputs TTL signal compatible 64 pin TQFP Package Commercial or Industrial temperature rating comtech aha corporation ThIs product is covered under multiple patents held or licensed by Comtech AHA Corporation. This product is covered by a Turbo Code Patent License from France Telecom TDF - Groupe des ecoles des telecommunicati.