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TDA7541 数据表(PDF) 17 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) 17 Page - STMicroelectronics

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TDA7541
Electrical specifications and characteristics
17/76
16.3
ROUT
Output resistance
200
250
300
Ω
16.4
R23load
Load resistor
20
k
Ω
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
Table 7.
AM section
(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
17. Global
17.1
VANT_US Usable sensitivity
(1)
(S+N)/N = 26 dB
19
25
dBµV
17.2
(S+N)/N
Signal to Noise Ratio
Ref.: V3 = 80dB∝V
50
55
dB
17.3
aIF
IF1 rejection
S/N=26dB, m=30%,
fmod =1kHz
70
80
dB
17.4
V3
Min. RF AGC threshold
RFAGC
92
dBµV
17.5
V3
Max. RF AGC threshold
104
dBµV
17.6
V61
Min. IF AGC threshold
IFAGC
78
dBµV
17.7
V61
Max. IF AGC threshold
102
dBµV
17.8
V56
Min. DAGC threshold
DAGC
86
dBµV
17.9
V56
Max. DAGC threshold
98
dBµV
18. AGC voltage driver output
18.1
V4
Max. AGC output voltage
3.3
3.5
V
18.2
V4
Min. AGC output voltage
0.5
V
18.3
| I4 |
AGC current
V4=0V, V54 = 3.5V, LNA”00”
340
µA
19. AGC PIN diode driver output
19.1
I7
AGC driver current
-15
mA
20. AM Mixer1 (10.7MHz)
20.1
RIN
Input resistance
differential
45
k
Ω
20.2
CIN
Input capacitance
differential
tbd
pF
20.3
ROUT
Output impedance
530
660
790
Ω
20.4
CP1dB
1dB compression point
referred to diff. mixer input
112
dB
μV
20.5
V3,6
Input DC bias
0.3
0.4
0.55
V
20.6
IIP3
3rd order intermodulation
132
dB
μV
20.7
INOISE
Equivalent input noise
5.5
nV/
√Hz
20.8
G
Gain
With 330
Ω filter
35.5
7
dB



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