參數資料
型號: TDA7514
廠商: 意法半導體
英文描述: SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR
中文描述: 單芯片FM /調幅調諧立體聲解碼器和音頻處理器
文件頁數: 34/74頁
文件大?。?/td> 604K
代理商: TDA7514
TDA7514
34/74
Table 23. SUBADDRESS 8 : IF Counter Control 1 and AM S.S. Threshold
Table 24. SUBADDRESS 9: If Counter Control 2
MSB
D7
LSB
D0
FUNCTION
D6
D5
D4
D3
D2
D1
IF Counter frequency window
Not valid
Not valid
Not valid
f = 6.25kHz (FM) 1kHz (AM UPC)
f = 12.5kHz (FM) 2kHz (AM UPC)
f = 25kHz (FM) 4kHz (AM UPC)
f = 50kHz (FM) 8kHz (AM UPC)
f = 100kHz (FM) 16kHz (AM UPC)
IF counter on/off
IF counter disable/stand by
IF counter enable
Adjacent Channel programming
Filter 1Fc = 80kHz
Filter 1Fc = 100kHz
Filter 2Fc = 110kHz
Filter 2Fc = 140kHz
Filter 1HP
Filter 1BP
Filter 2HP
Filter 2BP
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
-
-
-
-
0
1
-
-
-
-
0
1
-
-
-
-
MSB
D7
LSB
D0
FUNCTION
D6
D5
D4
D3
D2
D1
FM antenna adj (proportional to Vtuning)
f
center
= 10.60625MHz (FM) 449KHz (AM)
f
center
= 10.61250MHz (FM) 449KHz (AM)
-
f
center
= 10.66875MHz (FM) 458KHz (AM)
f
center
= 10.67500MHz (FM) 459KHz (AM)
f
center
= 10.68125MHz (FM) 460KHz (AM)
f
center
= 10.68750MHz (FM) 461KHz (AM)
f
center
= 10.69375MHz (FM) 462KHz (AM)
f
center
= 10.70000MHz (FM) 463KHz (AM)
f
center
= 10.70625MHz (FM) 464KHz (AM)
f
center
= 10.71250MHz (FM) 465KHz (AM)
-
f
center
= 10.80000MHz (FM) 479KHz (AM)
IF counter time windiw
t
sample
= 20.48ms (FM) 128ms (AM)
t
sample
= 10.24ms (FM) 64ms (AM)
t
sample
= 5.12ms (FM) 32ms (AM)
t
sample
= 2.568ms (FM) 16ms (AM)
t
sample
= 1.28ms (FM) 8ms (AM)
t
sample
= 640
μ
s (FM) 4ms (AM)
t
sample
= 320
μ
s (FM) 2ms (AM)
t
sample
= 160
μ
s (FM) 1ms (AM)
0
0
-
0
0
0
0
0
0
1
1
-
1
0
0
-
1
1
1
1
1
1
0
0
-
1
0
0
-
0
0
1
1
1
1
0
0
-
1
0
0
-
1
1
0
0
1
1
0
0
-
1
0
1
-
0
1
0
1
0
1
0
1
-
1
-
-
-
-
-
-
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
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