參數(shù)資料
型號： TDA7512
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)： 19/43頁
文件大?。?/td> 833K
代理商： TDA7512
TDA7512
26/42
2.3.5
Addr 5 IF Counter Control 1
2.3.6
Addr 6 IF Counter Control 2
Table 13.
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
00
0
tSample = 20.48ms (FM)128ms (AM )
00
1
tSample = 10.24ms (FM)64ms (AM )
01
0
tSample = 5.12ms (FM)32ms (AM )
01
1
tSample = 2.56ms (FM)16ms (AM )
10
0
tSample = 1.28ms (FM)8ms (AM )
10
1
tSample = 640s (FM)4ms (AM )
11
0
tSample = 320s (FM)2ms (AM)
11
1
tSample = 160
s (FM)1ms (AM )
0
IF counter disable / stand by
1
IF counter enable
0
Not valid
0
1
IF counter FM mode
1
0
IF counter AM mode (450KHz)
1
IF counter AM mode (10.7MHz)
0
Disable mute & AGC on hold in FM mode
1
Enable mute & AGC on hold in FM mode
0
Disable local mode
1
Enable local mode (PIN diode current = 0.5mA) “ON”
Table 14.
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
000
00
fCenter = 10.60625MHz (FM) / 10.689MHz ; 449KHz (AM)
000
01
fCenter = 10.61250MHz (FM) / 10.690MHz ; 450KHz (AM)
---
----
-
010
11
fCenter = 10.67500MHz (FM) / 10.700MHz ; 460KHz (AM)
011
00
fCenter = 10.68125MHz (FM) / 10.701MHz ; 461KHz (AM)
011
01
fCenter = 10.68750MHz (FM) / 10.702MHz ; 462KHz (AM)
011
10
fCenter = 10.69375MHz (FM) / 10.703MHz ; 463KHz (AM)
011
11
fCenter = 10.70000MHz (FM) / 10.704MHz ; 464KHz(AM)
---
----
-
111
11
fCenter = 10.80000MHz (FM) / 10.720MHz ;480KHz (AM)
0
Not valid
0
1
Not valid
0
1
0
Not valid
011
f = 6.25kHz (FM)1kHz (AM)
100
f = 12.5kHz (FM) 2kHz (AM)
101
f = 25kHz (FM) 4kHz (AM)
110
f = 50kHz (FM) 8kHz (AM)
111
f = 100kHz (FM)16kHz (AM)
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