CDX-GT930UI/GT937UI/GT980UI
CDX-GT930UI/GT937UI/GT980UI
3232
• IC Block Diagrams
IC401 BD3447AFV-E2 (MAIN Board (1/4))
IC1 TEF6607T/V4/S470,518 (MAIN Board (1/4))
IC551 TDA7333013TR (MAIN Board (1/4))
21222930 232440
FIL
A-GND
SDA
SCL
OUTF1
OUTF2
OUTR1
OUTR2
OUTS1
OUTS2
SOUT
DATA
MIN1
MIN2
EBIAS2
DS22
DS12
DS32
ACLK
39 38 37
VCC
36 2728 25263132333435
20191211 18171
A1
A2
B1
B2
C2
DP1
DN
DP2
EP1
EN
EP2
FP1
FN2
FP2
EBIAS1
DS21
DS11
DS31
FN1
2 3 4
C1
5 1413 1615109876
I2C BUS
LOGIC,
VCO
FADERFADER FADER
HPF
LPF
GND
ISO AMP
GND
ISO AMP
180°/0°
3 BAND P-EQ (TONE CONTROL)
7 BAND
SPECTRUM ANALYZER
/LEVEL METER
EFFECT
VOLUME/MUTE
INPUT GAIN
INPUT SELECTOR (3 SIGLE-END AND 3 STEREO IS O)
FADER FADER
SPEANA
LVL METER
LVL METER
SPEANA
GND
ISO AMP
GND
ISO AMP
GND
ISO AMP
GND
ISO AMP
AMRFIN
1
AMRFDEC
2
FMIN2
3
FMIN1
4
LOUT
8
ROUT
9
MPXOUT
13
RSSI
14
XTAL2
15
XTAL1
16
GNDAUD
10
GNDRF
5
VCC2
6
AMRFAGC
7
AMIFAGC2
11
MPXIN
12
AMSELOUT2
32
AMSELOUT1
31
AMIFAGC1
30
AMSELIN2
29
PLL
25
VCODEC
24
VREF
20
SDA
19
SCL
18
GNDD
17
GND
23
AMSELIN1
28
TEST
27
PLLREF
26
VCC1
22
GREGSUP
21
AM
TUNER
FM
TUNER
OUTPUT
PLL
TUNING
SYSTEM
I2C BUS
POWER
SUPPLY
STEREO DECODER
HIGH CUT
SOFT MUTE
NOISE BLANKER
SIGNAL
IMPROVEMENT
CONTROL
BANDWIDTH
CONTROL
VDDA
INTERPOLATOR
RAM
BUFFER
&
CONTROL
LOGIC
TEST LOGIC
&
PIN MUX'S
I
2
C/SPI
INTERFACE
BAND PASS
FILTER
SIGMA DELTA
CONVERTER
SINC4
FILTER
REF3
REF2
REF1
VSS
VDDD
RESETN
TM
1
MPX
16
CSN
SDAOUT
RDSREG
3
INTN
MPX
SINC4REG
SDAIN
SCK
SPI
TESTREG
14
2
3
4
5
6
7
8
INTN
15
SA
13
SDA
12
SCL
11
OSCILLATOR
XTO
10
XTI
9
RDS
DEMODULATOR &
SYNCHRONIZATION
2
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