Description Of Major Ics - JVC UX-Z7MDR Service Manual

UX-Z7MDR
4.1 AK4519VF-X (IC480) : A/D D/A converter
• Pin layout
• Block diagram
VCMR
VCOM
AOUTL
AOUTR
• Pin Function
Pin
Symbol I/O
No.
1 VRDA I Voltage Reference Input Pin for DAC, VA
2 VRAD I Voltage Reference Input Pin for ADC, VA
3 AINR I RCH Analog Input Pin
4 VCMR O Rch Common Voltage Output Pin, 0.45xVA
5 VCML O Lch Common Voltage Output Pin, 0.45xVA
6 AINL I Lch Analog Input Pin
7 PWAD I ADC Power-Down Mode Pin "L":Power
Down
8 PWDA I DAC Power-Down Mode Pin "L":Power
Down
9 MCLK I Master Clock Input Pin
10 LRCK I Input/Output Channel Clock Pin
11 SCLK I Audio Serial Data Clock Pin
1-44 (No.22042)

Description of major ICs

1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
10 15
11 14
12 13
VA AGND VB VD DGND
AINL
VCML Modulator
AINR
Modulator
VRAD
ARDV
LPF
Modulator
LPF
Modulator
PWAD PWDA
Function
SECTION 4
Decimation
Filter
Decimation
Filter
Serial I/O
Interface
Common Voltage
8x
Interpolator
8x
Interpolator
Pin
Symbol I/O
No.
12 SDTO
13 DGND
14 VD
15 SDTI
16 CMODE
17 DEM1
18 DEM0
19 AOUTL
20 AOUTR
21 VCOM
22 AGND
23 VB
24 VA
MCLK
Clock
Divider CMODE
LRCK
SCLK
SDTO
SDTI
Function
O Audio Serial Data Output Pin
- Digital Ground Pin
- Digital Power Supply Pin
I Audio Serial Data Input Pin
I Master Clock Select Pin
I De-emphasis Frequency Select Pin
I De-emphasis Frequency Select Pin
O Lch Analog Output Pin
O Rch Analog Output Pin
O Common Voltage Output Pin, 0.45xVA
- Analog Ground Pin
- Substrate Pin
- Analog Power Supply Pin