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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)： | 41/43頁 |
| 文件大?。?/td> | 833K |
| 代理商： | TDA7512 |
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7/42
TDA7512
V60
Lower threshold start with KAGC
KAGC = max, V7-9 = 0mVRMS,
fIF=300KHz
98
dB
V
V35
Startpoint KAGC
KAGC = max, V7-9 = 0mVRMS,
fIF=300KHz
fIF1 generate FSW level at V35
3.6
V
Control range KAGC
V35= +0.4V
16
dB
RIN
Input resistance
10
k
CIN
Input capacitance
2.5
pF
AGC Time Constant Output
V10
Max. AGC output voltage
V7-9 = 0mVRMS
VREF1
+VBE
V
V10
Min. AGC output voltage
V7-9 = 50mVRMS
0.5
V
I10
Min. AGC charge current
V7-9 = 0mVRMS,V10 = 2.5V
-12.5
A
I10
Max. AGC discharge current
V7-9 = 50mVRMS,V10 = 2.5V
1.25
mA
AGC PIN Diode Driver Output
I6
AGC OUT, current min.
V7-9 = 0mVRMS, V6 = 2.5V
50
A
I6
AGC OUT, current max.
V7-9 = 50 mVRMS, V6 = 2.5V
-20
mA
I/Q Mixer1 (10.7MHz)
RIN
Input resistance
differential
10
k
CIN
Input capacitance
differential
4
pF
ROUT
Output resistance
differential
100
k
V7,9
Input dc bias
3.2
V
gm
Conversion transconductance
17
mS
F
Noise figure
400
generator resistance
3dB
CP1dB
1dB compression point
referred to diff. mixer input
100
dB
V
IIP3
3rd order intermodulation
122
dB
V
IQG
I/Q gain adjust
G
-1
+1
%
IQP
I/Q phase adjust
PH
-7
+8
DEG
IRR
Image rejection ratio
ratio wanted/image
30
40
dB
IRR
Image rejection ratio
with gain and phase adjust
40
46
dB
Table 3. ELECTRICAL CHARACTERISTICS (continued)
Tamb = +25°C, VCC1 = VCC2 = VCC3 = VCCVCO = VCCMIX1 = VCCIF1=8.5V, fRF = 98MHz, dev. = 40kHz,
fMOD =1kHz, fIF1 =10.7MHz, fIF2 =450KHz, fXtal = 10.25MHz, in application circuit, unless otherwise
specified.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
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