TDA7511 Datasheet, PDF (8/41 Pages) STMicroelectronics – AM/FM TUNER FOR CAR RADIO AND HIFI APPLICATIONS

TDA7511
ELECTRICAL CHARACTERISTCS (continued)
T_amb = +25°C, V_CC1 = V_CC2 = V_CC3 = V_CCVCO = V_CCMIX1 = 8.5V, f_RF = 98MHz, dev. = 40kHz,
f_MOD = 1kHz, f_IF1 = 10.7MHz, f_IF2 = 450KHz, f_Xtal = 10.25MHz, in test or application circuit, unless otherwise
specified.
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
∆V₁₄ S-meter shift voltage
SL
-1.8
1.8
V
TK Temp coeff.
0
ppm/K
S-meter, Weighted Fieldstrength
V₃₅ Fieldstrength output
V₄₆ = 0V_RMS
2.5
V
V₃₅ Fieldstrength output
V₄₆ = 1V_RMS
4.9
V
R_OUT Output resistance
12
kΩ
Adjacent Channel Gain
A_min Gain minimum
ACG
32
dB
A_max Gain maximum
ACG
38
dB
Adjacent Channel Filter
f_HP -3dB frequency highpass
ACF
100
kHz
f_BP Centre frequency
ACF
100
kHz
f_-20dB Attenuation 20dB
70
kHz
Adjacent Channel Output
V₁₃ Output voltage low
0.1
V
V₁₃ Output voltage high
4.9
V
R_OUT Output resistance
4
kΩ
Multipath Channel Gain
A_min Gain minimum
MPG
12
dB
A_max Gain maximum
MPG
23
dB
Multipath Bandpass Filter
f_Lower Centre frequency low
MPF
19
kHz
f_Upper Centre frequency up
MPF
31
kHz
Q Quality factor
5
10
Multipath Output
V₃₄ Output voltage low
0.1
V
V₃₄ Output voltage high
4.9
V
R_OUT Output resistance
2.5
kΩ
ISS (intelligent Selectivity System)
Filter 450kHz
f_centre Centre frequency
f_{REF_intern} = 450kHz
450
kHz
BW 3dB Bandwidth, -3dB
ISS80 = 1
80
kHz
BW Bandwidth, -20dB
20dB
ISS80 = 1
150
kHz
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