Parts - Pioneer MJ-HX3000 Service Manual

MJ-HX5000, MJ-HX3000, MJ-HX2000, MJ-HX700

7.2 PARTS

7.2.1 IC
7 52186 (AK4518-VF-E2) (AD/DA PCB ASSY : IC801)
7 AD/DA Converter IC
¶ Block Diagram
AINL 6
VCML 5
AINR
3
VCMR
4
VRAD
2
VRDA
1
VCOM
21
AOUTL
19
AOUTR
20
¶ Pin Arrangement
No. Pin Name I/O
1 VRDA I Reference voltage input for DAC and VA
2 VRAD I Reference voltage input for ADC and VA
3 AINR I R ch analog input
R ch common voltage output , 0.45
4 VCMR O
Connect an electrolytic capacitor (about 4.7 F) and a ceramic capacitor (0.1 F) between this pin and AGND.
L ch common voltage output , 0.45
5 VCML O
Connect an electrolytic capacitor (about 4.7 F) and a ceramic capacitor (0.1 F) between this pin and AGND.
6 AINL I L ch analog input
7 PWAD I ADC power down mode L: power down
8 PWDA I DAC power down mode L: power down
9 MCLK I Master clock input
10 LRCK I Input/output channel clock pin
11 SCLK I Audio serial data clock pin
12 SDTO O Audio serial data output
13 DGND Digital ground
14 VD Digital power supply
15 SDTI I Audio serial data input
16 CMODE I Master clock selection "H": 384fs or 512fs, "L": 256fs
17 DEM1
I Deemphasis frequency selection
18 DEM0
19 AOUTL O L ch analog output
20 AOUTR O R ch analog output
Common voltage output , 0.45
21 VCOM O
Connect an electrolytic capacitor (about 4.7 F) and a ceramic capacitor (0.1 F) between this pin and AGND.
22 AGND Analog ground pin
23 VB Substraight pin
24 VA Analog power supply
30
¶ The information shown in the list is basic information and may not
VA AGND VB VD DGND
24 22 23 14
Decimation
Filter
Modulator
Decimation
Modulator Filter
Common Voltage
LPF
Modulator
LPF
Modulator
7 8
PWAD PWDA
VA
VA
VA
correspond exactly to that shown in the schematic diagrams.
13
Clock
Divider
Serial I/O
Interface
8
Interpolator
8
Interpolator
18
DEM0 DEM1
Function
9 MCLK
16 CMODE
10 LRCK
11 SCLK
12 SDTO
15 SDTI
17