– 39 –
IC3 BU1924
2
1
3
4
16
14
13
15
12
11
10
9
5
6
7
8
VREF
ANALOG
RCLK
(NC)
X2
X1
VDD2
VSS2
T1
T2
DIGITAL
QUAL
RDATA
VREF
MUX
VDD1
VSS1
VSS3
CMP
TEST
PLL
57KHz
RDS/ARI
CLOCK
&
DRIVER
DEFFERENTIAL
DECODER
BIPHASE
DECODER
PLL
1187.5Hz
ANTI-ALIASING
8TH SWITCHED
CAPACITOR FILTER
COMPARATOR
1
2
3
6
9
10
11
12
8
7
4
5
22
TAPE
TAPE
TAPE
BUF AMP
A1
BUF AMP
A2
NAB
AMP1
NAB
AMP2
23
24
15
14
13
21
20
17
16
RADIO
BUF AMP
B1
BUF AMP
B2
MUTE
MUTE
ON
ON
ON
7dB
26dB
26dB
MONITOR
AMP
LOGIC
18
19
MUTE
7dB
MONITOR
AMP
LINE
TAPE
RADIO
LINE
ALC2
ALC1
DET
REC
AMP1
REC
AMP2
2.1
REF
AMP
MIC
AMP1
LINE
IN1
INT
EXT
RADIO
IN1
REC
PLAY
PRE
OUT1
PRE
OUT2
RADIO
LINE
RADIO
IN2
LINE
IN2
MIC
IN
TAPE
TAPE
VCC
ALC
NAB
OUT1
NAB
NF1
REC
OUT1
NAB
IN1
VREF
GND
NAB
IN2
REC
OUT2
NAB
NF2
NAB
OUT2
MIC
NF
4
5
6
7
8
9
10
11
12
13
14
15
16
TONE
VR
MATRIX
SURROUND
CONTROL
1
2
3
AGND
IN1
NF1
BVN1
BIN1
BVO1
TIN1
TVO1
OUT1
VCC
SC
PORT1
PORT2
PORT3
PORT4
DGND
24
23
22
21
20
19
18
17
TONE
VR
FILTER
IN2
NF2
BVN2
BIN2
BVO2
TIN2
TVO2
OUT2
VC
TC
BC
CK
DATA
LATCH
VREF
32
31
30
29
28
27
26
25
1 2
3
6
9
10 11 12
8
7
4
5
15
14
13
FILTER
BS
STBY
BS
NC
BS2
OUT2
VCC
OUT1
BS1
POWER GND
ST BY
FILTER
NF1
IN1
IN2
NF2
PRE GND1
PRE GND2
IC301 TA2068N
IC303 BA5417
IC302 BH3854AFS