TDA7540B Datasheet, PDF (9/75 Pages) STMicroelectronics – AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)

TDA7540B
Electrical specifications
Table 4.
Electrical characteristics (continued)
(T_amb = 25°C, V_CC1 = V_CC2 = V_CC3 = V_CCST= V_CCVCO = V_CCMIX1 = V_CCMIX2 = V_CCIF1 =8.5V,
f_Xtal = 10.25MHz, in application circuit, unless otherwise specified).
Item Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
1.16
1.17
1.18
1.19
I_CCMIX1
I_CCMIX2
I_CCIF1
I_CCST
Supply current
Supply current
Supply current
Supply current
2 Reference Voltages
AM ON
AM ON
7
mA
7
mA
5
mA
13
mA
2.1 V_REF1 Internal reference voltage
2.2 V_REF2 Internal reference voltage
3 I²C-Bus interface
I_REF1 = 0mA
I_REF2 = 0mA
5
V
2.5
V
3.1
f_SCL
Clock frequency
3.2
V_IL Input low voltage
3.3
V_IH Input high voltage
3.4
I_IN
Input current
3.5
V_O
Output acknowledge
voltage
I_O = 1.6mA
400 kHz
1
V
3
5
V
-5
5
µA
0.4
V
3.2.2 FM section
Table 5.
Electrical characteristics
(T_amb = 25°C, V_CC1 = V_CC2 = V_CC3 = V_CCST= V_CCVCO = V_CCMIX1 = V_CCMIX2 = V_CCIF1 = 8.5V,
f_RF = 98MHz, dev= 40kHz, f_MOD = 1kHz, f_Xtal = 10.25MHz, in application circuit, unless
otherwise specified).
Item Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
4 Wide Band RF AGC
4.1
V_9-11 Lower threshold start
V₁₆ = 2.5V
85
4.2
V_9-11 Upper threshold start
V₁₆ = 2.5V
96
5 Narrow Band IF & Keying AGC
5.1
V₇₇ Lower threshold start
KAGC = off, V_9-11 = 0mV_RMS
86
5.2
V₇₇ Upper threshold start
KAGC = off, V_9-11 = 0mV_RMS
98
KAGC = max,
5.3
V₇₇
Lower threshold start with
KAGC
V_9-11 = 0mV_RMS,
98
∆f_IF=300KHz
KAGC = max,
5.4
V₂₂ Startpoint KAGC
V_9-11 = 0mV_RMS,
∆f_IF=300KHz
2.2
f_IF1 generates FS level at V₂₂
5.5
∆
Control range KAGC
∆V₂₂= +0.8V
16
5.6
R_IN Input resistance
10
dBµV
dBµV
dBµV
dBµV
dBµV
V
dB
kΩ
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