comtech
aha
corporation
PRODUCT BRIEF
AHA G709D-10 FEC Core
10 GB/S ITU G.709
REED-SOLOMON DECODER
After more than 15 years building leading edge
Reed-Solomon ICs, AHA is licensing its patented
technology for the first time. The G709D-10 core
implements the 16 block interleaved RS(255,239)
code specified by in Annex A of the ITU G.709
standard.
The G709D-10 core is specifically designed to
efficiently perform the Reed-Solomon decoding
function specified by the standard. The core
requires no configuration, no initialization, and no
re-synchronization procedure or includes any
unnecessary features that would add area, power or
complexity to your design.
A complementary G709E RS encoder is also
available from AHA.
FEATURES
鈥?ITU G.709 Compatible Reed-Solomon core
鈥?Input and output data streams are block-
interleaved for seamless connection in G.709
system
鈥?10 Gbits/sec operation in 0.18碌 CMOS process
鈥?140 Kgates in 0.18碌 using a typical standard cell
library
鈥?Less than 100 mA of dynamic current in UMC's
0.18碌 CMOS process
鈥?One-edge, one-clock fully synchronous design
without multi-cycle paths
鈥?Separate FIFO for increased flexibility and
simplified IC floor planning
鈥?Complete error reporting for Bit Error Rate
calculation and feedback into threshold detection
circuits
Figure 1:
AHA G709D-10 FEC
correct_to_zero[10:0]
reset
clk
start
received_data[63:0]
correct_to_one[10:0]
status_valid
AHA G709D-10 FEC
decode_complete
uncorrectable[15:0]
decoded_data[63:0]
FIFO 鈥?64 Kbit
(available from AHA)
comtech
aha
corporation
fifo_data[63:0]
1
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