參數(shù)資料
型號: TDA7421
廠商: 意法半導體
英文描述: AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS
中文描述: AM / FM調(diào)諧的汽車收音機及音響應(yīng)用
文件頁數(shù): 24/38頁
文件大?。?/td> 527K
代理商: TDA7421
IF COUNTER REFERENCE CONTROL 2 (MSB) AND IF COUNTER MODE SELECT
MSB
D7
0
0
0
LSB
D0
0
1
0
FUNCTION
D6
0
0
0
D5
0
0
0
D4
0
0
0
D3
0
0
0
D2
0
0
0
D1
0
0
1
MSB = 0
MSB = 256
MSB = 512
MSB = 15616
all combinations allowed
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
0
1
MSB = 15872
MSB = 16128
NOT USED IN APPLICATION MODE
IF counter FM mode
0
0
0
1
1
1
0
1
IF counter AM mode
not used
Bit name Subaddress = 07H
IFCM1
f
osc
/f
tim
= LSB + MSB + 1
IFCM0
IRC13
IRC12
IRC11
IRC10
IRC9
IRC8
IF COUNTER CONTROL 1
MSB
D7
LSB
D0
0
1
0
1
0
1
0
1
FUNCTION
D6
D5
D4
D3
D2
0
0
0
0
1
1
1
1
D1
0
0
1
1
0
0
1
1
don’t use
don’t use
don’t use
EW delta f =
±
6.25KHz (FM);
±
1KHz (AM)
EW delta f =
±
12.5KHz (FM);
±
2KHz (AM)
EW delta f =
±
25KHz (FM);
±
4KHz (AM)
EW delta f =
±
50KHz (FM);
±
8KHz (AM)
EW delta f =
±
100KHz (FM);
±
16KHz (AM)
IF counter disabled / stand by
IF counter enabled
Bit name Subaddress = 08H
0
1
IFENA
EW2
EW1
EW0
TDA7421
24/38
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