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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 42/43頁(yè) |
| 文件大?。?/td> | 833K |
| 代理商： | TDA7512 |
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TDA7512
8/42
IF1 Amplifier1 +2 (10.7MHz)
Gmin
Min. gain
IFG
18
dB
Gmax
Max. gain
IFG
26
dB
RIN
Input resistance
330
ROUT
Output resistance
330
CP1dB
1dB compression point
referred to 330
input
105
dB
V
IIP3
3rd order Intermodulation
referred to 330
input
126
dB
V
Mixer2 (450kHz)
RIN
Input impedance
330
V46
Max. input voltage
900
mVRM
S
V48
Limiting sensitivity
S/N = 20dB
25
V
G
Mixer gain
18
dB
Limiter 1 (450kHz)
GLimiter
Gain
80
dB
Demodulator, Audio Output
THD
Dev.= 75kHz, V46 = 10mVRMS
0.1
%
VMPX
MPX output signal
Dev.= 75kHz
500
mVRM
S
ROUT
Output resistance
50
|
V|min
DC offset fine adjust
DEM, MENA=1
8.5
mV
|
V|max DC offset fine adjust
DEM, MENA=1
264
mV
S/N
Dev.= 40kHz,V46 = 10mVRMS
76
dB
Quality Detection
S-meter, Unweighted Fieldstrength
V46
Min. input voltage MIX2
10
V
V14
Fieldstrength output
V46 = 0VRMS
0.1
V
V14
Fieldstrength output
V46 = 1VRMS
4.9
V
V14
voltage per decade
SMSL = 0
1
V
V14
voltage per decade
SMSL = 1
1.5
V
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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