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4
KX-TDA3451XJ / KX-TDA3451X
3 Specifications
Following table shows the specifications.
4 Technical Descriptions
4.1.
Block Diagram
4.2.
Circuit Operations
4.2.1.
Explanation
Configuration:
DSP (IC101)
Explanation DSP card connector (CN2)
Explanation DSP card connector (CN2)
Function:
DSP works as a CODEC (G.711 and G.729AB) with echo cancel and jitter buffer functions, it can add four voice channels on KX-
TDA3451.
TDA3451.
Function
Description
CODEC
DSP
For ITU-T G711, G729AB
A/
A/
µ - law selectable (call by call)
Power supply
+3.3V
For the peripheral circuitry
It is supplied from the PBX Main board.
It is supplied from the PBX Main board.
DSP (4ch)
IC101
Address BHA [0-3]
Data BHD [0-7]
Control Signal
nVPRST
HW_FH
HW_CLK_XIN/SCLK
+3.3V
50pin connector (CN2)
(T
o SIP-GW4)
PCM Data
KX-TDA3451XJ/KX-TDA3451X BLOCK DIAGRAM
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