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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)： | 29/47頁 |
| 文件大?。?/td> | 374K |
| 代理商： | TDA7421N |
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TDA7421N
Data byte specification
Table 23.
IF counter control 1
MSB
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
don't use
0
1
don't use
0
1
0
don't use
0
1
EW delta f = ±6.25 kHz (FM); ±1 kHz (AM)
1
0
EW delta f = ±12.5 kHz (FM); ±2 kHz (AM)
1
0
1
EW delta f = ±25 kHz (FM); ±4 kHz (AM)
1
0
EW delta f = ±50 kHz (FM); ±8 kHz (AM)
1
EW delta f = ±100 kHz (FM); ±16 kHz (AM)
0
IF counter disabled / standby
1
IF counter enabled
IFENA
EW2
EW1
EW0
Bit name
Subaddress = 08H
Table 24.
IF counter control 2
MSB
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
fcenter = 10.60000 MHz (FM) 448 kHz (AM)
0
1
fcenter = 10.60625 MHz (FM) 449 kHz (AM)
0
1
0
fcenter = 10.61250 MHz (FM) 450 kHz (AM)
0
1
fcenter = 10.61875 MHz (FM) 451 kHz (AM)
0
1
0
fcenter = 10.62500 MHz (FM) 452 kHz (AM)
0
1
0
1
fcenter = 10.63125 MHz (FM) 453 kHz (AM)
0
1
0
fcenter = 10.63750 MHz (FM) 454 kHz (AM)
0
1
fcenter = 10.64375 MHz (FM) 455 kHz (AM)
0
1
0
fcenter = 10.65000 MHz (FM) 456 kHz (AM)
0
1
0
1
fcenter = 10.65625 MHz (FM) 457 kHz (AM)
0
1
0
1
0
fcenter = 10.66250 MHz (FM) 458 kHz (AM)
0
1
0
1
fcenter = 10.66875 MHz (FM) 459 kHz (AM)
0
1
0
fcenter = 10.67500 MHz (FM) 460 kHz (AM)
0
1
0
1
fcenter = 10.68125 MHz (FM) 461 kHz (AM)
0
1
0
fcenter = 10.68750 MHz (FM) 462 kHz (AM)
0
1
fcenter = 10.69375 MHz (FM) 463 kHz (AM)
1
0
fcenter = 10.70000 MHz (FM) 464 kHz (AM)
1
0
1
fcenter = 10.70625 MHz (FM) 465 kHz (AM)
1
0
1
0
fcenter = 10.71250 MHz (FM) 466 kHz (AM)
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