參數(shù)資料
型號: TDA7540NTR
廠商: STMICROELECTRONICS
元件分類: 調(diào)諧器
英文描述: 2-BAND, AUDIO TUNER, PQFP80
封裝: 14 X 14 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-80
文件頁數(shù): 7/76頁
文件大?。?/td> 1225K
代理商: TDA7540NTR
TDA7540N
Electrical specifications
Adjacent channel gain
Gmin
Gain minimum
ACG=0
32
dB
Gmax
Gain maximum
ACG=1
38
dB
Adjacent channel filter
fHP
-3dB frequency highpass
ACF=0
100
kHz
fBP
Centre frequency
ACF=1
100
kHz
f-20dB
Attenuation 20dB
70
kHz
Adjacent channel output
V23
Output voltage low
0.1
V
V23
Output voltage high
4.9
V
ROUT
Output resistance
3.5
4.5
5.5
k
Ω
Multipath channel gain
Gmin
Gain minimum
MPG=0
12
dB
Gmax
Gain maximum
MPG=1
23
dB
Multipath bandpass filter
fBP19
Centre frequency
MPF=0
19
kHz
fBP31
Centre frequency
MPF=1
31
kHz
Q
Quality factor
5
8
10
Multipath output
V24
Output voltage low
0.1
V
V24
Output voltage high
4.9
V
ROUT
Output resistance
3
k
Ω
ISS (intelligent Selectivity System)
Filter 450kHz
fcentre
Centre frequency
fREF_intern = 450kHz
450
kHz
BW 3dB
Bandwidth, -3dB
ISS80 = 1
70
80
90
kHz
BW 20dB
Bandwidth, -20dB
ISS80 = 1
132
150
168
kHz
BW 3dB
Bandwidth, -3dB
ISS80 = 0
106
120
135
kHz
BW 20dB
Bandwidth, -20dB
ISS80 = 0
220
250
280
kHz
BW 3dB
Bandwidth weather band
ISS30 = 1
20
30
40
kHz
BW 20dB
-20dB weather band
ISS30 = 1
56
80
104
kHz
Table 6.
FM section electrical characteristics (continued)
(Tamb = 25°C, VCC1 = VCC2 = VCC3 = VCCST= VCCVCO = VCCMIX1 = VCCMIX2 = VCCIF1 = 8.5V,
fRF = 98MHz, dev= 40kHz, fMOD = 1kHz, fXtal = 10.25MHz, in application circuit, unless
otherwise specified).
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
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