MDX-M690
22
22
1
2
ANT-FM
ANT-AM
53
S-METER
14
S-METER
10
MPX
8
AM-DET
9
RDS-DET
FM/AM TUNER UNIT
TUX201
SYSTEM CONTROLLER
IC501 (1/3)
17
SDA (EEPROM)
(FM/AM ANTENNA IN)
5
VCC 8.5V
TU +8.5V
16
VDD 5V
TU +5V
11
B/U 5V
10
52
MPTH
75
DAVN
RDS DECODER
IC202
INTERFACE
REGISTER
IIC BUS
SLAVE
TRANSCEIVER
OSCILLATOR
& CLOCK
X201
4.332MHz
4
8
5
OSCI
OSCO
SDA
SCL
DAVN
57 kHz
BAND-PASS
FILTER
CLOCKED
COMPARATOR
RDS/RDBS
DEMODULATOR
& DECODER
SIGNAL
QUALITY
DECODER
16
18
19
MPX
CIN
4
5
SC
OUT
MULTI
PATH
DETECTOR
20
2
LVIN
MPTH
50
QUAL
56
NS MASK
BAND-PASS
FILTER
IC201
Q203
NOISE DET
DISCHARGE
SWITCH
DATA
CLOCK
DATA, CLOCK
MPX
E
AM
F
S-METER
QUAL
H
B/U +5V
EEP SIO
• SIGNAL PATH
: FM
: AM (MW/LW)
18
SCL (EEPROM)
11
EEP CKO
SDA
SCL
BUFFER
Q202
DATA
12 13
CLOCK
9
G
10
(Page 23)
(Page 23)
(Page 23)
(Page 23)
J
(Page 23)
6-2.
BLOCK DIAGRAM – TUNER Section –
Summary of Contents for MDX-M690
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