Description Of Major Ics - JVC CA-MXS6MDR Service Manual

Description of major ICs

AK4519VF-X (IC480) : A / D D / A converter
1.Pin layout
1
2
3
4
5
6
7
8
9
10
11
12
2.Block diagram
AINL
VCML
AINR
VCMR
VRAD
ARDV
VCOM
AOUTL
AOUTR
3.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
VCMR Rch Common Voltage Output Pin, 0.45xVA
4 O
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
12 SDTO O Audio Serial Data Output Pin
13 DGND - Digital Ground Pin
14 VD - Digital Power Supply Pin
15 SDTI I Audio Serial Data Input Pin
CMODE I Master Clock Select Pin
16
17 DEM1 I De-emphasis Frequency Select Pin
18 DEM0 I De-emphasis Frequensy Select Pin
19 AOUTL O Lch Analog Output Pin
20 AOUTR O Rch Analog Output Pin
21 VCOM O Common Voltage Output Pin, 0.45xVA
22 AGND - Analog Ground Pin
23 VB - Substrate Pin
24 VA - Analog Power Supply Pin
24
23
22
21
20
19
18
17
16
15
14
13
VA AGND VB VD DGND
Decimation
Modulator Filter
Decimation
Modulator
Filter
Common Voltage
LPF
Modulator
LPF
Modulator
PWAD PWDA
Function
Clock
Divider
Serial I/O
Interface
8x
Interpolator
8x
Interpolator
CA-MXS6MDR
SP-MXS6MD
MCLK
CMODE
LRCK
SCLK
SDTO
SDTI
1-41