TDA7512 Datasheet, PDF (13/42 Pages) STMicroelectronics – AM/FM CAR RADIO TUNER IC WITH INTELLIGENT SELECTIVITY SYSTEM ISS

TDA7512
Table 4. ELECTRICAL CHARACTERISTICS (continued)
T_amb = +25°C, V_CC1 = V_CC2 = V_CC3 = V_CCVCO = V_CCMIX1 = V_CCMIX2 = 8.5V, f_RF = 1MHz, f_MOD = 400Hz at
30% AMf_IF1 = 10.7MHz, f_IF2 = 450kHz, f_xtal = 10.25MHz, in application circuit, (unless otherwise noted,
V_INRF antenna input).
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
AM Mixer1 (10.7MHz)
R_IN Input resistance
differential
1.2
kΩ
C_IN Input capacitance
differential
4
pF
R_OUT Output impedance
differential
100
kΩ
CP_1dB 1dB compression point
referred to diff. mixer input
115
dBµV
IIP3 3rd order intermodulation
132
dBµV
F
Noise figure
8
dB
A Gain
26
dB
C_min Min. capacitance step
IF1T
0.55
pF
C_max Max. capacitance
IF1T
8.25
pF
C_31-64
IF1T
2
pF
AM Mixer2 (450kHz)
R₅₈ Input resistance
10
kΩ
C₅₈ Input capacitance
2.5
pF
CP_1dB 1dB compression point
referred to diff. mixer input
120
dBµV
IIP3 3rd order intermodulation
132
dBµV
F
Noise figure
12
dB
A Max. gain
Mixer2 tank output
34
dB
∆A Gain control range
20
dB
C_min Min. cap step
IF2T
1.6
pF
C_max Max. cap
IF2T
24
pF
C_55-56
IF2T
2
pF
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