TDA7541B Datasheet, PDF (11/77 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system

TDA7541B
Electrical specifications and characteristics
Table 5. Globals (continued)
Item Symbol
Parameter
1.10
1.11
1.12
1.13
I_CCVCO
I_CCMIX1
I_CCMIX1
I_CCIF
Supply current
Supply current
Supply current
Supply current
2. Reference voltages
2.1
V_REF1 Internal reference voltage
2.2
V_REF2 Internal reference voltage
3. I²C bus interface
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
Test conditions
-
FM ON
AM ON
-
I_REF1 = 0mA
I_REF2 = 0mA
-
-
-
-
I_O = 1.6mA
Min.
-
-
-
-
4.8
2.4
-
-
2
-5
-
Typ.
12
32
20
4
5
2.5
-
-
-
-
-
Max.
15
40
24
5
5.2
2.6
400
1
-
5
0.4
Unit
mA
mA
mA
mA
V
V
kHz
V
V
µA
V
3.3.2
FM section
T_amb = 25 °C, V_CC1 = V_CC2 = V_CCMIX1 = V_CCVCO = V_CCIF = 8.5 V, f_Xtal = 10.25 MHz,
f_RF = 98 MHz, dev = 40 kHz, f_Mod = 1 kHz, in application circuit, unless otherwise specified.
Table 6. FM section
Item Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
4. Wide band RF AGC
4.1
V_8-10 Lower threshold start
4.2
V_8-10 Upper threshold start
4.3 Δ V_8-10 Control range RF KAGC
5. Narrow band IF and keying AGC
5.1
V₆₁ Lower threshold start
5.2
V₆₁ Upper threshold start
5.3
V₆₁
Max. IFAGC threshold
with KAGC
5.4
V₃₇ Start point KAGC
5.5 Δ V₆₁ Control range IF KAGC
6. AGC time constant output
V₁₃ = 2.5 V, RFK “0”
V₁₃ = 2.5 V, RFK”0”
KAGC”000”, RFAGC”00”,
V₃₇ = 3.0….3.7 V, RFK”1”
KAGC = off, V_8-10 = 0 mV_RMS
KAGC = off, V_8-10 = 0 mV_RMS
KAGC”000”,IFAGC”00”,
V₃₇ = 3.0 V
KAGC”000”,IFAGC”00”,
KAGC”000”,IFAGC”00”,
V₃₇ = 3.2….3.9 V
6.1
V₁₃ Max. AGC output voltage V_8-10= 0 mV_RMS
-
79
- dBμV
-
93
- dBμV
5
8
11
-
-
82
- dBµV
-
94
- dBµV
-
97
- dBµV
3.2 3.4
3.6
V
12
15
18
dB
-
-
V_REF1
+V_BE
V
Doc ID 16048 Rev 1
11/77