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| TDA7511 Datasheet, PDF (11/41 Pages) STMicroelectronics – AM/FM TUNER FOR CAR RADIO AND HIFI APPLICATIONS | |||
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TDA7511
ELECTRICAL CHARACTERISTICS (continued)
Tamb = +25°C, VCC1 = VCC2 = VCC3 = VCCVCO = VCCMIX1 = VCCMIX2 = 8.5V, fRF = 1MHz, fMOD = 400Hz at 30%
AMfIF1 = 10.7MHz, fIF2 = 450kHz, fxtal = 10.25MHz, in test or application circuit, (unless otherwise noted, VinRF
antenna input).
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
aIF IF rejection
Ref: VINRF = 74dBµV,
IF1 = 10.7MHz
100
dB
IF2 = 450kHz
100
dB
âV37 = -10dB
aTW Tweet
C28 = 22µF
-3
-0.7
dB
fAF Frequency response
VINRFSS Seek Stop Sensitivity
THD Total Harmonic Distortion
Ref.: VINRF = 74dBµV,
âVAF = -3 dB
AMSS
VINRF = 74 dBµV, m = 0.8
m = 0.3
VINRF = 120 dbµV, m = 0.8
m = 0.3
3.6
kHz
20
35
45 dBµV
0.5
%
0.3
1.0
0.3
V37 Output level
VINRF = 74 dBµV
220
mVRM
S
V34 Output level
VINRF = 74 dBµ, m=off
190
mVRM
S
V3 Min. RF AGC threshold
Max. RF AGC threshold
AMAGC
Wide
82
dBµV
98.8
dBµV
V58 Min. IF AGC threshold
Max. IF AGC threshold
AMAGC
Middle
80.1
dBµV
96.8
dBµV
V3 Min. IF AGC threshold
Max. IF AGC threshold
DAGC
Narrow
32.6
dBµV
80.7
dBµV
R63OUT Output impedance
R40OUT Output impedance
R40OUT Output impedance
AMSEEK = 0
AMSEEK = 1
100
kâ¦
150
kâ¦
5
kâ¦
AGC Voltage Driver Output
V4 Max. AGC output voltage
3.5
V
V4 Min. AGC output voltage
|I4| AGC current
0.5
V
100
µA
AGC PIN Diode Driver Output
I64 AGC driver current
1.5
mA
AM Mixer1 (10.7MHz)
RIN Input impedance
1.2
kâ¦
IP3 3rd order intercept point
140
dBµV
F
Noise figure
7
dB
11/41
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