TDA7541WTR データシートの表示（PDF） - STMicroelectronics
部品番号
コンポーネント説明
メーカー
TDA7541WTR
STMicroelectronics
TDA7541WTR Datasheet PDF : 76 Pages
| |||
Electrical specifications and characteristics
TDA7541
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
14.17 I30,31 Discharge current high
14.18 V30,31 Low voltage
14.19 V30,31 High voltage
ISS filter switch threshold
TISS, BWDEF = 0
BWDEF = 0
BWDEF = 1
14.20 V30,31 Threshold ISS on
14.21 V30,31 Threshold ISS off
14.22 V30,31 Threshold ISS narrow on
14.23 V30,31 Threshold ISS narrow off
Deviation detection
BWDEF = 0
BWDEF = 0
BWDEF = 0
BWDEF = 0
14.24
I3
Charge current low
14.25
I3
Charge current high
14.26
I3
Discharge current low
14.27
I3
Discharge current high
14.28 DEVWTH Internal low threshold
14.29 DEVWTH Internal high threshold
14.30 RATIOmin Referred to threshold
14.31 RATIOmax Referred to threshold
TDEV
TDEV
TDEV
TDEV
DWTH, I3 = 1µA
DWTH, I3 = 1µA
DTH
DTH
15. Weak signal mute
11
15
19
µA
0.1
0.2
V
4.6 4.9
V
3
V
1
V
4
V
2
V
-40 -32 -20 µA
-48 -39 -30 µA
0.5
1
1.5 µA
5.5
8
10.5 µA
20
kHz
50
kHz
1
1.5
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
1
dB
15.6
VACMTH
Internal AC mute
threshold
ACMTH
40
260 mV
15.7 aACMD AC mute depth
15.8
I42 Charge current
15.9
I42 Discharge current
ACMD
3
8
dB
-65 -47.5 -30 μA
1.5 2.5
4
μA
16. Multiplexer output
16.1
V23 Output voltage low
16.2
V23 Output voltage high
0.1
0.2
V
4.6 4.9
V
16/76
Share Link: