TDA7421 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7421' PDF : 38 Pages View PDF
TDA7421
TUNER DATA BYTE SPECIFICATION
ADDRESS ORGANIZATION (Tuner AM/FM)
MSB
FUNCTION
SUBAD BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2
STATUS
00H T ES T O N FMMUTE FMADJ FMHIGH AMSTER AMSEEK
EO
/ FM
RECSEEK
FM STOP STATION/
FM IF AGC
01H FAG2 FAG1 FAG0 FSS4 FSS3 FSS2
FM SMETER SLIDER 02H
FSL4
FSL3 FSL2 FSL1 FSL0
-
AM AGC1/AM STOP
STATION
03H ASS3 ASS2 ASS1 ASS0 AAG3 AAG2
IFT1/IFT2
04H
T2A3
T2A2 T2A1 T2A0 T1A3 T1A2
FRONT END
ADJUSTMENT
05H ANA3 ANA2 ANA1 ANA0 RFA3 RFA2
FM DEMODULATOR
06H
SDD DEM6 DEM5 DEM4 DEM3 DEM2
ADJUSTMENT
FM IF BUFFERS
07H
FBL3
FBL2 FBL1 FBL0 FBH3 FBH2
FM SOFT MUTE/
08H FSM3 FSM2 FSM2 FSM0
-
AUM2
FM AUDIO MUTE GAIN
FM HOLE DETECTOR 09H BWM2 BWM1 BWM0 HDM4 HDM3 HDM2
/FM DETUNING
DETECTOR
BIT 1
AM/FM/
STBY
FSS1
-
AAG1
T1A1
RFA1
DEM1
FBH1
AUM1
HDM1
LSB
BIT 0
AM/FM/
STBY
FSS0
-
AAG0
T1A0
RFA0
DEM0
FBH0
AUM0
HDM0
26/38
Share Link: 
