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7.2. EXPLANATION OF THE CIRCUIT OPERATION
Base circuit consists of the following
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• CPU Circuit
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• Timing Signal Generator Circuit
7.2.1. CPU Circuit
Composition:
ASIC (IC1)
SH1 8bit CPU (IC2)
FLASH ROM 4MB (IC500)
RAM 1MB (IC501)
SH1 8bit CPU (IC2)
FLASH ROM 4MB (IC500)
RAM 1MB (IC501)
7.2.2. Echocanceling Circuit
This block consists of IC100 (Echo Canceller), IC101 (TSW).
IC105 (DC/DC) generates 1.8V used in the IC101 (TSW).
IC100 (Echo Canceller) is connected to IC1 (ASIC) through IC101 (TSW).
IC100 (Echo Canceller) consists of 32 echo cancellation modules. By inserting them into uplink and downlink, it fulfills echo
cancellation functions of 16 lines.
IC105 (DC/DC) generates 1.8V used in the IC101 (TSW).
IC100 (Echo Canceller) is connected to IC1 (ASIC) through IC101 (TSW).
IC100 (Echo Canceller) consists of 32 echo cancellation modules. By inserting them into uplink and downlink, it fulfills echo
cancellation functions of 16 lines.
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KX-TDA6166XJ / KX-TDA6166X
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