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3-2. BLOCK DIAGRAM
D401-408
IC001
IR
FRONTEND
RECEIVER
IN
5
I/V
MDR-IF4000
IC101
IR RECEIVER/DSP
AMP
SID/
OUT
ADIN
GCA/
16
10
A/D
BPF
RAM
CONTROL
+1.5V
+2.5V
5 VOUT
IC201
D/A CONVERTER
RV201
SCKI
VOL
APX
31
16
VOUTL
9
DAOUT/
ROUT
60
2
DATA
BCK/RCLK
54
3
BCK
LRCK/RCS
59
1
LRCK
8
VOUTR
PD
4
Q101
61
MUTE
DTVALID
DRIVE
XRST
13
1 VOUT
VDD
IC102
RESET
IC501
+1.5V
REGULATOR
LEVEL DETECT
5 VOUT
2
VIN
IC502
+2.5V
REGULATOR
D501
Q601,602
VIN
1
+B SWITCH
OUT
LX
D502
POWER
IC503
+2.8V DC/DC
CONVERTOR
11
11
IC302
HEADPHONE
AMP
w
5
SP002
SPEAKER
4
(L CH)
8
Q302
MUTE
5
SP001
SPEAKER
4
(R CH)
8
Q301
MUTE
IC301
HEADPHONE
AMP
+2.5V
2
S701
S701
AUTO
ON/OFF
IC601
1
2
D601
S602
S601
BATTERY
CHARGE
DETECT
TERMINAL
RECHARGEABLE
BATTERY
・SIGNAL PATH
(BP-HP550)
1.2V 550mAhX2
: ANALOG
: RF
MDR-IF4000
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