參數(shù)資料
型號： T4258NFNG3
廠商： ATMEL CORP
元件分類： 接收器
英文描述： AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO44
封裝： SSOP-44
文件頁數(shù)： 15/38頁
文件大小： 443K
代理商： T4258NFNG3
22
T4258N
4566B–AUDR–02/04
Data Transfer
Table 36. Control Registers
A24_100
MSB
BYTE 3
LSB
MSB
BYTE 2
LSB
MSB
BYTE 1
LSB
ADDR.
Demodulator
AM/FM/WB
Gain FM
IF amplifier
Search
Width of window
AM OSC divider/multipath
sensitivity
Field
strength
BW/
MPX/
LPF/
Time window stop signal
10
0
B93
B92
B91
B90
B89
B88
B87
B86
B85
B84
B83
B82
B81
B80
B79
B78
B77
B76
B75
B74
B73
A24_101
MSB
BYTE 3
LSB
MSB
BYTE 2
LSB
MSB
BYTE 1
LSB
ADDR.
WB-
Demod-gain
Start soft mute
threshhold
Soft
mute
depth
Tk-FM IF
AGC threshold
AM/FM
IF1
ampl.
AM/
FM
1st
Mixer
+
AGC
AM/
FM
BW 2nd mixer
Int. IF2 reference shift
IFOUT
Pin 20
IF2IN
Pin 28
Dem.
Contr.
Gain
local
OSC
10
1
B72
B71
B70
B69
B68
B67
B66
B65
B64
B63
B62
B61
B60
B59
B58
B57
B56
B55
B54
B53
B52
A24_111
MSB
BYTE 3
LSB
MSB
BYTE 2
LSB
MSB
BYTE 1
LSB
ADDR.
AGC
Local
OSC
Do not change (test mode bits)
Offset field strength (Pin 9)
Band-path filter
Fieldst.
(Pin 9)
Local OSC
prescaler (VCO-Buffer)
1
0
0000
0
00
B30
B29
B28
B27
B26
B25
B24
B23
B22
B21
B20
B19
B18
B17
B16
B15
B14
B13
B12
B11
B10
A8_100
MSB
BYTE 1
LSB
ADDR.
Test
mode
MP
Mute
(Pin
11)
Reset
MP/
ADJ
Noise-
blanker
10
0
B9
B8
B7
B6
B5
A8_101
MSB
BYTE 1
LSB
ADDR.
MP INT
Band-path filter
Band width
1
0
1
B4
B3
B2
B1
B0
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