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TDA7541 数据表(PDF) 15 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) 15 Page - STMicroelectronics

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TDA7541
Electrical specifications and characteristics
15/76
13.20
fLP
-3dB frequency low pass
AM
FMON=0
40
kHz
Adjacent channel gain
13.21
GAC
Gain
32
dB
Adjacent channel filter
13.22
fHP
-3dB frequency highpass
ACF=0
100
kHz
13.23
f-20dB
Attenuation 20dB
70
kHz
13.24
fBP
Centre frequency
ACF=1
100
kHz
Multipath channel gain
13.25
GMP
Gain
12
dB
Multipath bandpass filter
13.26
fC
Centre frequency
19
kHz
13.27
Q
Quality factor
5
8
10
14. ISS (intelligent selectivity system) filter 450kHz
14.1
fcentre
Centre frequency
fREF_intern = 450kHz
450
kHz
14.2
BW 3dB
Bandwidth, -3dB
ISSBW = 1
70
80
90
kHz
14.3
BW 20dB Bandwidth, -20dB
ISSBW = 1
132
150
168
kHz
14.4
BW 3dB
Bandwidth, -3dB
ISSBW = 0
106
120
135
kHz
14.5
BW 20dB Bandwidth, -20dB
ISSBW = 0
220
250
280
kHz
14.6
BW 3dB
Bandwidth weather band
WBON = 1
18
22
26
kHz
14.7
BW 20dB -20dB weather band
WBON = 1
tbd
kHz
Adjacent channel ISS filter threshold
14.8
VTHAC
Internal low threshold
ACTH
2.75
V
14.9
VTHAC
Internal high threshold
ACTH
3.05
V
Multipath threshold
14.10
VTHMP
Internal low threshold
MPTH
0.50
V
14.11
VTHMP
Internal high threshold
MPTH
1.25
V
ISS filter time constant
14.12
I30,31
Charge current low mid
TISS, BWDEF = 1
-89
-74
-59
µA
14.13
I30,31
Charge current high mid
TISS, BWDEF = 1
-72
-60
-48
µA
14.14
I30,31
Charge current low narrow TISS, BWDEF = 1
-148
-124
-99
µA
14.15
I30,31
Charge current high
narrow
TISS, BWDEF = 1
-132
-110
-88
µA
14.16
I30,31
Discharge current low
TISS, BWDEF = 0
0.5
1
1.5
µA
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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