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TDA7220 数据表(PDF) 9 Page - STMicroelectronics

部件名 TDA7220
功能描述  VERY LOW VOLTAGE AM-FM RADIO
PDF  16 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7220 数据表(HTML) 9 Page - STMicroelectronics

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background image
Figure 15 : DC Output Voltage (Pin 9) versus
Supply Voltage (FM section)
Figure 16 : AFC Output Voltage (Pin 9) versus
Frequency Deviation (FM section)
Figure 17 : Drain Current versus Supply Voltage
APPLICATION INFORMATION
TYPICAL PERFORMANCE OF THE RADIO RECEIVER OF FIGURE 18 (VS =3V, RL =32
Ω)
Parameter
Test Conditions
Value
Unit
Wavebands
FM
87.5 to 108
MHz
AM
510 to 1620
kHz
Sensitivity
FM
S/N = 26dB,
∆f = 22.5kHz
3
µV
AM
S/N = 6dB, m = 0.3
2
µV
AM
S/N = 26dB, m = 0.3
10
µV
Distortion
(fm = 1kHz)
FM
PO = 20mW
VI = 100
µV
∆f = 22.5kHz
0.5
%
∆f = 75kHz
1.8
%
AM
m = 0.3
1.1
%
Signal to Noise
(fm = 1kHz)
FM
PO = 20mW
VI = 100
µV
∆f = 22.5kHz
60
dB
AM
m = 0.3
45
dB
Amplitude Modulation Rejection
FM
VI = 100
µV, ∆f = 22.5kHz, m = 0.3
40
dB
Quiescent Current
16
mA
Supply Voltage Range
1.6 to 3
V
TDA7220
9/16



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