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TDA7541 数据表(PDF) 13 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) 13 Page - STMicroelectronics

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TDA7541
Electrical specifications and characteristics
13/76
10.8
Gmax
Max. gain
IFG
21
dB
10.9
INOISE
Equivalent input noise
voltage
Gmax , Rgen=330Ω, RL=330Ω,
noise of Rgen not included
3.2
nV/
√Hz
10.10
CP1dB
1dB compression point
referred to 330Ω input, Gmax
99
dBµV
10.11
IIP3
3rd order Intermodulation
referred to 330Ω input, Gmax
130
dBµV
11. Mixer2 (450kHz)
11.1
RIN
Input resistance
Differential
240
300
360
Ω
11.2
CIN
Input capacitance
2.5
pF
11.3
V55.56
DC input voltage
3.7
4
4.3
V
11.4
ROUT
Output resistance
100
k
Ω
11.5
COUT
Output capacitance
2.5
pF
11.6
V52,53
DC output voltage
3.7
4
4.3
V
11.7
gm
Conversion
transconductance
WB Mode; referred to MIX2OUT
126
µA/V
11.8
G
Gain
FM Mode, referred to MIX2OUT
14
dB
11.9
Cstep
Min. cap. Step
IF2A
2.2
pF
11.10
Cmax
Max. cap.
IF2A
33
pF
11.11
INOISE
Equivalent input noise
voltage,
including buffer mixer2
Rgen=330Ω, IF2Q”10”
noise of Rgen not included
15
nV/
√Hz
11.12
CP1dB
1dB compression point
referred to 330
Ω input ,IF2Q”10”
116
dB
μV
11.13
IIP3
3rd order Intermodulation
referred to 330
Ω input ,IF2Q”10”
132
dB
μV
12. Demodulator, audio output
12.1
THD
Total harmonic distortion
Dev.= 75kHz, V56=
100dBµV,IF2Q”11”
0.1
0.3
%
aAM
AM suppression
V56 =100dBµ, Δf=40KHz, fmod
=1KHz,
fmod =1KHz@AM, m=0.3%
40
60
dB
12.2
VMPX
MPX output signal
Dev.= 75kHz
440
500
560
mVRMS
12.3
ROUT
Output impedance
20
40
60
Ω
RLOAD
Load resistance
10
k
Ω
12.4
(S+N)/N
Signal plus noise-to-noise
ratio at MPXOUT
Δf=40KHz, f
mod =1KHz, V56
=100dBµV,
Deemphasis=50µs,
B=200Hz to 15KHz
ISSENA = 0
70
dB
Table 6.
FM section (continued)
(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



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