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TDA7541B 데이터시트(PDF) 11 Page - STMicroelectronics

부품명 TDA7541B
상세설명  AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system
PDF  77 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7541B 데이터시트(HTML) 11 Page - STMicroelectronics

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TDA7541B
Electrical specifications and characteristics
Doc ID 16048 Rev 1
11/77
3.3.2
FM section
Tamb = 25 °C, VCC1 = VCC2 = VCCMIX1 = VCCVCO = VCCIF = 8.5 V, fXtal = 10.25 MHz,
fRF = 98 MHz, dev = 40 kHz, fMod = 1 kHz, in application circuit, unless otherwise specified.
1.10
ICCVCO
Supply current
-
-
12
15
mA
1.11
ICCMIX1
Supply current
FM ON
-
32
40
mA
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
-
2
-
-
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)
Item
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Table 6.
FM section
Item
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
4. Wide band RF AGC
4.1
V8-10
Lower threshold start
V13 = 2.5 V, RFK “0”
-
79
-
dB
μV
4.2
V8-10
Upper threshold start
V13 = 2.5 V, RFK”0”
-
93
-
dB
μV
4.3
Δ V8-10 Control range RF KAGC
KAGC”000”, RFAGC”00”,
V37 = 3.0….3.7 V, RFK”1”
58
11
-
5. Narrow band IF and keying AGC
5.1
V61
Lower threshold start
KAGC = off, V8-10 = 0 mVRMS
-
82
-
dBµV
5.2
V61
Upper threshold start
KAGC = off, V8-10 = 0 mVRMS
-
94
-
dBµV
5.3
V61
Max. IFAGC threshold
with KAGC
KAGC”000”,IFAGC”00”,
V37 = 3.0 V
-
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….3.9 V
12
15
18
dB
6. AGC time constant output
6.1
V13
Max. AGC output voltage
V8-10= 0 mVRMS
--
VREF1
+VBE
V



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