Marantz SR4000 Service Manual - Page 47

Block-diagram, Multi-channel Decoding Module '98

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9-3 BLOCK-DIAGRAM MULTI-CHANNEL DECODING MODULE '98 OPT IN COAX IN 1 IIS-20 S/P-DIF I2C DUET DSP SAA2505H IIS-20 (Ls-Rs) IIS-20 (C-SW) IIS-20 (L-R) IIS-20 IIS-20 COAX IN 2 S/P-DIF Transceiver LC8904Q L3 COAX OUT L3 Microcontroller P83C654 +5V +5V 3V3 Stab LF33CV +3V3 CODEC UDA1344 L3 +3V3 +12V -12V 6-ch DAC UDA1328T OP-AMP MC34072 RESET REQUEST I2C - SDA I2C - SCL GND +5V LEFT_IN GND RIGHT_IN GND +12V -12V DMIX_R GND DMIX_L SUBWOOFER SURROUND_R SURROUND_L GND CENTER GND RIGHT GND LEFT Signals Control Digital Audio Analog Audio Supply Terms DUET: Philips Dual Core DSP DSP: Digital Signal Processor DAC: Digital to Analog Converter ADC: Analog to Digital Converter CODEC: Combined ADC and DAC S/P-DIF: Sony/Philips Digital Interface Transceiver: Transmitter/Receiver IIS-20: Inter-IC Sound (20 bit) I2C: Inter-IC Communication L3 : 3-line Communication OP-AMP: Operational Amplifier Stab: Stabiliser DMIX: Downmix OPTO: Optical Connector COAX: Cinch Connector

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9-3
S/P-DIF
Transceiver
LC8904Q
DUET
DSP
SAA2505H
Micro-
controller
P83C654
CODEC
UDA1344
6-ch DAC
UDA1328T
IIS-20 (L-R)
IIS-20 (C-SW)
IIS-20 (Ls-Rs)
RESET
REQUEST
I2C - SDA
I2C - SCL
GND
+5V
LEFT_IN
GND
RIGHT_IN
GND
+12V
-12V
GND
DMIX_R
GND
DMIX_L
SUBWOOFER
SURROUND_R
SURROUND_L
GND
CENTER
GND
RIGHT
LEFT
OPT IN
COAX IN 1
COAX IN 2
COAX OUT
IIS-20
S/P-DIF
I2C
IIS-20
IIS-20
OP-AMP
MC34072
3V3 Stab
LF33CV
+3V3
+3V3
+5V
+5V
+12V
-12V
L3
L3
L3
BLOCK-DIAGRAM
MULTI-CHANNEL DECODING MODULE '98
Signals
Control
Digital Audio
Analog Audio
Supply
Terms
DUET: Philips Dual Core DSP
DSP: Digital Signal Processor
DAC: Digital to Analog Converter
ADC: Analog to Digital Converter
CODEC: Combined ADC and DAC
S/P-DIF: Sony/Philips Digital Interface
Transceiver: Transmitter/Receiver
IIS-20: Inter-IC Sound (20 bit)
I2C: Inter-IC Communication
L3 : 3-line Communication
OP-AMP: Operational Amplifier
Stab: Stabiliser
DMIX: Downmix
OPTO: Optical Connector
COAX: Cinch Connector