Description Of Major Ics - JVC XV-M565BK Service Manual

XV-M565BK/M567GD

Description of major ICs

MN35503-X (IC703) : D/A CONVERTER
1.Terminal layout
MA 1
2
DIN
3
LRCK
BCK 4
MB 5
DVDD2 6
CKO 7
8
DVSS2
9
M1
OUT1C 10
NC 11
AVDD1 12
13
OUT1D
14
AVSS1
3.Pin function
Pin
Symbol I/O
No.
1 MA -
2 DIN I
3 LRCK I
4 BCK
I
5 MB
I
6 DVDD2
-
7 CKO
I
8 DVSS2 -
9 M1 -
10 OUT1C O
11 NC -
12 AVDD1
-
13 OUT1D
O
14 AVSS1
-
1-34
28
RDO
27
MD
26 MC
DIN
25
M3
24
DVDD1 LRCK
23
XIN
22
XOUT BCK
21
DVSS1
20 M2
19
OUT2C
18
NC
17
AVDD2
16
OUT2D
15
AVSS2
RDO
OUT1C
OUT1D
Function
Connected to ground
Data input
L/R clock input
Bit clock input
De-emphasis ON signal
Digital power supply2
Clock output
Digital ground 2
Connected to ground
1C PEM output
Non connect
Analog power supply 1
1D PEM output
Analog ground 1
2.Block diagrams
2
IF
3
BLOCK
4
M1
9
MODE
M2
20
CONTROL
BLOCK
M3
25
MB
5
28
MD
27
10
PEM
BLOCK
13
Pin
Symbol I/O
No.
AVSS2
Analog ground 2
15 -
OUT2D
2D PEM output
16 O
AVDD2
Analog power supply 2
17 -
NC Non connection
18 -
OUT2C 2C PEM output
19 O
M2 Connected to ground
20 -
DVSS1
Digital ground 1
21 -
XOUT
Crystal oscillator output
22 O
XIN
Crystal oscillator input
23 I
DVDD1
Digital power supply 1
24 -
M3 Connected to ground
25 -
MC Connected to ground
26 -
MD Reset signal/Digital Att.control signal input
27 I
RDO Not used
28 -
DF BLOCK
OSC
DE-EMPHASIS
BLOCK
IIR FILTER BLOCK
8fs OVER SAMPLING
DIGITAL FILTER
1ST ORDER NOISE
SHAPER BLOCK
VANS NOISE
SHAPER BLOCK
PEM
BLOCK
D/A BLOCK
Function
XIN
23
22 XOUT
CKO
7
OUT2C
19
OUT2D
16