TDA7511 데이터 시트보기 (PDF) - STMicroelectronics
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TDA7511 Datasheet PDF : 41 Pages
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TDA7511
ELECTRICAL CHARACTERISTCS (continued)
Tamb = +25°C, VCC1 = VCC2 = VCC3 = VCCVCO = VCCMIX1 = 8.5V, fRF = 98MHz, dev. = 40kHz,
fMOD = 1kHz, fIF1 = 10.7MHz, fIF2 = 450KHz, fXtal = 10.25MHz, in test or application circuit, unless otherwise
specified.
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
BW 3dB Bandwidth, -3dB
ISS80 = 0
120
kHz
BW Bandwidth, -20dB
20dB
ISS80 = 0
250
kHz
BW 3dB Bandwidth weather band
ISS30 = 1
30
kHz
BW -20dB weather band
20dB
ISS30 = 1
80
kHz
∆fmin Fine adjust
AISS
-20
kHz
∆fmax Fine adjust
AISS
10
kHz
Adjacent Channel ISS Filter Threshold
VNTH Internal low threshold
ACNTH
0
V
VNTH Internal high threshold
ACNTH
0.3
V
VWTH Internal low threshold
ACWTH
0.25
V
VWTH Internal high threshold
ACWTH
0.95
V
Multipath Threshold
VTHMP Internal low threshold
MPTH
0.50
V
VTHMP Internal high threshold
MPTH
1.25
V
ISS Filter Time Constant
I15 Charge current low mid
TISS, ISSCTL = 1
-74
µA
I15 Charge current high mid
TISS, ISSCTL = 1
-60
µA
I15 Charge current low narrow
TISS, ISSCTL = 1
-124
µA
I15 Charge current high narrow
TISS, ISSCTL = 1
-110
µA
I15 Discharge current low
TISS, ISSCTL = 0
1
µA
I15 Discharge current high
TISS, ISSCTL = 0
15
µA
V15 Low voltage
ISSCTL = 0
0.1
V
V15 High voltage
ISSCTL = 1
4.9
V
ISS Filter Switch Threshold
V15 Threshold ISS on
ISSCTL = 0
3
V
V15 Threshold ISS off
ISSCTL = 0
1
V
V15 Threshold ISS narrow on
ISSCTL = 0
4
V
V15 Threshold ISS narrow off
ISSCTL = 0
2
V
I20 Charge current low
TDEV
-20
µA
I20 Charge current high
TDEV
-34
µA
I20 Discharge current low
TDEV
6
µA
I20 Discharge current high
TDEV
20
µA
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