tda7421n STMicroelectronics, tda7421n Datasheet - Page 30

• Manufacturer Part Number: tda7421n
• Description: Am/fm Tuner For Car Radio And Hi-fi Applications
• Manufacturer: STMicroelectronics

TDA7421N
7.0 TUNER DATA BYTE SPECIFICATION
7.1 ADDRESS ORGANIZATION (Tuner AM/FM)
7.2 STATUS (subaddress 00H)
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STATUS
FM STOP STATION/
FM IF AGC
FM SMETER SLIDER/
AM IF2 AMP
AM AGC1/AM STOP
STATION
IFT1/IFT2
FRONT END
ADJUSTMENT
FM DEMOD
ADJUSTMENT
FM AUDIO MUTE
GAIN/FM IF BUFFERS/
FM SOFT MUTE
FM HOLE DETECTOR/
FM DETUNING
TUNER TESTING
MSB
FUNCTION
FMMUTE
S6
0
1
FMADJ
SUBAD
S5
1
1
O3H
00H
01H
02H
04H
05H
06H
07H
08H
09H
AMSTEREO
PLLTEST
BWM2
MSbit
ANA3
FSM3
FAG2
ASS3
FSL4
T2A3
S4
N.U.
N.U.
0
1
B7
FMMUTE FMADJ
BWM1
DEM6
SEEK
ANA2
FSM2
FAG1
ASS2
FSL3
T2A2
S3
B6
T2
0
1
BWM0
DEM5
FSM1
AM/FM/
FAG0
ASS1
ANA1
FSL2
T2A1
STBY
B5
T1
AM
AM
FM
FM
S2
0
0
0
1
1
STEREO
DEM4
HDM4
FSM0
ASS0
ANA0
FSS4
FSL1
T2A0
AM/FM/
AM
B4
T0
STBY
AM
AM
FM
FM
S1
0
0
1
1
0
AAGN1
SDDIS
FFBL1
DEM3
HDM3
SEEK
FSS3
RFA3
FSL0
T1A3
B3
AM/FM/
STBY
LSB
AM
AM
FM
FM
S0
0
1
0
0
0
AM/FM/
AAGN0
BWDIS
DEM2
HDM2
IF2A1
STBY
FSS2
RFA2
T1A2
FBL0
B2
Stand by
FM on
AM on (/6)
AM on (/10)
AM on (/8)
RECEPTION
SEEK
AM IFC Out
AM Stereo OUT
FM on for demodulator
adjustment, demod on
FM on for demodulator
adjustment, demod muted
AAGW1 AAGW0
AM/FM/
FUNCTION
HDDID
DEM1
HDM1
IF2A0
AUM1
STBY
FSS1
RFA1
T1A1
B1
AM/FM/
SMDIS
DEM0
HDM0
AUM0
STBY
LSbit
FSS0
RFA0
T1A0
N.U.
B0