參數(shù)資料
型號: TDA7421N
廠商: STMICROELECTRONICS
元件分類: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
封裝: TQFP-64
文件頁數(shù): 38/47頁
文件大?。?/td> 374K
代理商: TDA7421N
TDA7421N
Data byte specification
10
0
30
all else not allowed
SEEK
Clamping window
0
X
Not allowed
01
0
Faster Clamping Window
(±1 kHz over Threshold)
XXX
11
1
Slower Clamping Window
(±4 kHz over Threshold)
all combinations allowed
Table 34.
FM hole detector / FM detuning detector (subaddress 08H) (continued)
MSB
LSB
Function
BWM2
BWM1
BWM0
HDM4
HDM3
HDM2
HDM1
HDM0
BW
Slope
30 kHz
BW
Slope
15 kHz
BW
Slope
10 kHz
Hole
det
MSB
Hole
det
Hole
det
Hole
det
Hole
det LSB
Table 35.
Tuner testing
MSB
LSB
Function
PLL test
T2
T1
T0
SDDIS
BWDIS
HDDIS
SMDIS
Test
mode
PLL
Test
mode
MSB
Test
mode
Test
mode
LSB
SD
output
disable
Bandwidth
disable
Hole
detector
disable
Soft
mute
disable
0
000
0
no test
Test modes
1
0
Soft Mute Test
1
0
1
Hole Detector Test
0
1
Bandwidth Test
1
Audio Mute and SD Disabled
all else not allowed
0
1
AMSSDAC Test
010
FMSSDAC Test
011
FMSMDAC Test
100
FMHDDAC Test
1
0
FMIFAGCDAC Test
all else not allowed
1
PLL Test
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