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TDA7541 数据表(PDF) 18 Page - STMicroelectronics

部件名 TDA7541
功能描述  AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system
PDF  76 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7541 数据表(HTML) 18 Page - STMicroelectronics

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Electrical specifications and characteristics
TDA7541
18/76
21. AM mixer2
21.1
RIN
Input resistance
265
330
396
Ω
21.2
CIN
Input capacitance
2.5
pF
21.3
V55.56
DC input voltage
3.8
4
4.2
V
21.4
ROUT
Output resistance
100
k
Ω
21.5
COUT
Output capacitance
2.5
pF
21.6
V52,53
DC output voltage
3.7
4.0
4.3
V
21.7
gm
Conversion
transconductance
MIX2OUT
440
µA/V
21.8
Gmax
Max. gain
L=560µH, Q=28;
C=180p,referred to MIX2OUT
26
dB
21.9
ΔG
Gain control range
20
dB
21.10
Cstep
Min. cap. Step
IF2A
2.2
pF
21.11
Cmax
Max. cap.
IF2A
33
pF
21.12
INOISE
Equivalent input noise
voltage,
including buffer mixer2
Amax , Rgen=330Ω, RL=2kΩ,
noise of Rgen not included
11
nV/
√Hz
21.13
CP1dB
1dB compression point
Amax , referred to 330Ω input
114
dB
μV
21.14
IIP3
3rd order Intermodulation
Amax , referred to 330Ω input
132
dB
μV
22. Buffer AM mixer2
22.1
ROUT
Output resistance
1.6
2
2.4
k
Ω
22.2
COUT
Output capacitance
2.5
pF
22.3
V50
DC output voltage
3.7
4.0
4.3
V
22.4
G
gain
RL=2kΩ
-8
-6
-4
dB
23. AM IF2 amplifier
23.1
RIN
Input resistance
1.6
2
2.4
k
Ω
23.2
CIN
Input capacitance
2.5
pF
23.3
V44,47
DC input voltage
4.1
4.3
4.5
V
23.4
Gmax
Max. gain
49
52
55
dB
23.5
ΔG
Gain control range
36
38
40
dB
23.6
INOISE
Equivalent input noise
voltage
Gmax , Rgen=2KΩ,
noise of Rgen not included
9.5
nV/
√Hz
23.7
CP1dB
1dB compression point
Gmax , referred to 2KΩ input
74
dB
μV
23.8
IIP3
3rd order Intermodulation
Gmax , referred to 2KΩ input
100
dB
μV
Table 7.
AM section (continued)
(Tamb = 25°C, VCC1 = VCC2 = VCCMIX1 = VCCVCO = VCCIF = 8.5V, fXtal = 10.25 MHz, fRF = 1
MHz, m = 30%, fmod = 1 kHz, in application circuit, unless otherwise specified)
Item
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit



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