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TDA7541WTR 데이터시트(PDF) 11 Page - STMicroelectronics

부품명 TDA7541WTR
상세설명  AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system
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제조업체  STMICROELECTRONICS [STMicroelectronics]
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TDA7541
Electrical specifications and characteristics
11/76
1.12
ICCMIX1
Supply Current
AM ON
20
24
mA
1.13
ICCIF
Supply Current
4
5
mA
2. Reference voltages
2.1
VREF1
Internal reference voltage
IREF1 = 0mA
4.855.2
V
2.2
VREF2
Internal reference voltage
IREF2 = 0mA
2.4
2.5
2.6
V
3. I2C bus interface
3.1
fSCL
Clock frequency
400
kHz
3.2
VIL
Input low voltage
1
V
3.3
VIH
Input high voltage
3
V
3.4
IIN
Input current
-5
5
µA
3.5
VO
Output acknowledge voltage
IO = 1.6mA
0.4
V
Table 5.
Globals (continued)
(Tamb = 25°C, VCC1 = VCC2 = VCCMIX1 = VCCVCO = VCCIF = 8.5V, fXtal = 10.25 MHz,
in application circuit, unless otherwise specified)
Item
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Table 6.
FM section
(Tamb = 25°C, VCC1 = VCC2 = VCCMIX1 = VCCVCO = VCCIF = 8.5V, fXtal = 10.25 MHz,
fRF = 98MHz, dev = 40 kHz, fMod = 1 kHz, in application circuit, unless otherwise specified)
Item
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
4. Wide band RF AGC
4.1
V8-10
Lower threshold start
V13 = 2.5V,RFK “0”
79
dB
μV
4.2
V8-10
Upper threshold start
V13 = 2.5V,RFK”0”
93
dB
μV
4.3
Δ V8-10 Control range RF KAGC
KAGC”000”,RFAGC”00”,
V37 = 3.0….3.7V, RFK”1”
58
11
5. Narrow band IF & keying AGC
5.1
V61
Lower threshold start
KAGC = off, V8-10 = 0mVRMS
82
dBµV
5.2
V61
Upper threshold start
KAGC = off, V8-10 = 0mVRMS
94
dBµV
5.3
V61
Max. IFAGC threshold
with KAGC
KAGC”000”,IFAGC”00”,
V37 = 3.0V
97
dBµV
5.4
V37
Start point KAGC
KAGC”000”,IFAGC”00”,
3.2
3.4
3.6
V
5.5
Δ V61
Control range IF KAGC
KAGC”000”,IFAGC”00”,
V37 = 3.2….3.9V
12
15
18
dB
6. AGC time constant output
6.1
V13
Max. AGC output voltage
V8-10= 0mVRMS
VREF1
+VBE
V
6.2
V13
Min. AGC output voltage
V8-10 = 100mVRMS
0.5
V
6.3
I13
Min. AGC charge current
V8-10= 0mVRMS,V13 = 2.5V
-33
-25
-17.5
µA


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