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TDA7541 数据表(PDF) 16 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) 16 Page - STMicroelectronics

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Electrical specifications and characteristics
TDA7541
16/76
14.17
I30,31
Discharge current high
TISS, BWDEF = 0
11
15
19
µA
14.18
V30,31
Low voltage
BWDEF = 0
0.1
0.2
V
14.19
V30,31
High voltage
BWDEF = 1
4.6
4.9
V
ISS filter switch threshold
14.20
V30,31
Threshold ISS on
BWDEF = 0
3
V
14.21
V30,31
Threshold ISS off
BWDEF = 0
1
V
14.22
V30,31
Threshold ISS narrow on
BWDEF = 0
4
V
14.23
V30,31
Threshold ISS narrow off
BWDEF = 0
2
V
Deviation detection
14.24
I3
Charge current low
TDEV
-40
-32
-20
µA
14.25
I3
Charge current high
TDEV
-48
-39
-30
µA
14.26
I3
Discharge current low
TDEV
0.5
1
1.5
µA
14.27
I3
Discharge current high
TDEV
5.5
8
10.5
µA
14.28
DEVWTH Internal low threshold
DWTH, I3 = 1µA
20
kHz
14.29
DEVWTH Internal high threshold
DWTH, I3 = 1µA
50
kHz
14.30 RATIOmin Referred to threshold
DTH
1
14.31 RATIOmax Referred to threshold
DTH
1.5
15. Weak signal mute
15.1
V37
Upper start point
WMTH=0, WMD=7, VIN=V56,
AF=-3dB
2.9
V
15.2
V37
Lower start point
WMTH=7, WMD=7, VIN=V56,
AF=-3dB
2.7
V
15.3
aWMD
Min. mute depth
WMD=0, WMTH=7, V56 =OFF
10
14
dB
15.4
aWMD
Max. mute depth
WMD=7, WMTH=7, V56=OFF
22
26
dB
15.5
aMTHISS
Mute threshold below
WMTH for ISS filter “ON”
WMD, WMTH, VIN=V56
1dB
15.6
VACMTH
Internal AC mute
threshold
ACMTH
40
260
mV
15.7
aACMD
AC mute depth
ACMD
3
8
dB
15.8
I42
Charge current
-65
-47.5
-30
μA
15.9
I42
Discharge current
1.5
2.5
4
μA
16. Multiplexer output
16.1
V23
Output voltage low
0.1
0.2
V
16.2
V23
Output voltage high
4.6
4.9
V
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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