TDA7540N Datasheet, PDF (12/76 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS)

Electrical specifications
TDA7540N
Table 5.
Symbol
Globals 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).
Parameter
Test conditions
Min. Typ. Max. Unit
I_CC3
I_CCVCO
I_CCMIX1
I_CCMIX1
I_CCMIX2
I_CCIF1
I_CCST
Supply current
Supply current
Supply current
Supply current
Supply current
Supply current
Supply current
Reference voltages
FM ON
AM ON
AM ON
2
3
mA
8
10
mA
8
10
mA
7
8.5
mA
7
8.5
mA
5
6.5
mA
12
13.5
mA
V_REF1 Internal reference voltage
V_REF2 Internal reference voltage
I²C-Bus interface
I_REF1 = 0mA
I_REF2 = 0mA
4.8
5
5.2
V
2.4
2.5
2.6
V
f_SCL Clock frequency
V_IL
Input low voltage
V_IH Input high voltage
I_IN
Input current
V_O
Output acknowledge voltage I_O = 1.6mA
400
kHz
1
V
3
5
V
-5
5
μA
0.4
V
3.3.2 FM section
Table 6.
Symbol
FM section 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).
Parameter
Test conditions
Min. Typ. Max. Unit
Wide band RF AGC
V_9-11 Lower threshold start
V₁₆ = 2.5V
83
V_9-11 Upper threshold start
V₁₆ = 2.5V
94
Narrow band IF & keying AGC
V₇₇
Lower threshold start
KAGC = off, V_9-11 = 0mV_RMS
84
V₇₇
Upper threshold start
KAGC = off, V_9-11 = 0mV_RMS
96
KAGC = max,
V₇₇
Lower threshold start with
KAGC
V_9-11 = 0mV_RMS,
96
Δf_IF=300KHz
85
87 dBμV
96
98 dBμV
86
88 dBμV
98
100 dBμV
98
100 dBμV
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