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TDA7511 数据表(PDF) 10 Page - STMicroelectronics

部件名 TDA7511
功能描述  AM/FM TUNER FOR CAR RADIO AND HIFI APPLICATIONS
PDF  41 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7511 数据表(HTML) 10 Page - STMicroelectronics

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DEVWTH Internal low threshold
DWTH
30
kHz
DEVWTH Internal high threshold
DWTH
75
kHz
RATIOmi
n
Referred to threshold
DTH
1
RATIOm
ax
Referred to threshold
DTH
1.5
Softmute
VANT
Upper startpoint
SMTH, SMD, SLOPE = 0
16
dB
µV
VANT
lower startpoint
SMTH, SMD, SLOPE = 0
3
dB
µV
aSMmin
Min. softmute depth
SMD, SLOPE = 0, SMTHUpper
18
dB
aSMmax
Max. softmute depth
SMD, SLOPE = 0, SMTHUpper
36
dB
aSMTHIS
S
Mute depth threshold for ISS filter
on
SMCTH
0.2
2
dB
VACTH
Internal AC mute threshold
ACM
60
220
mV
aSMAC
AC mute depth
6
dB
I42
Charge current
-47.5
µA
I42
Discharge current
2.5
µA
S/N Over All
S/N
VIN_min = 60dB
µV,
dev.= 40kHz,LP=15KHz
deemphasis t = 50
µs
66
dB
ELECTRICAL CHARACTERISTICS
Tamb = +25°C, VCC1 = VCC2 = VCC3 = VCCVCO = VCCMIX1 = VCCMIX2 =8.5V, fRF =1MHz, fMOD = 400Hz at 30%
AMfIF1 = 10.7MHz, fIF2 = 450kHz, fxtal = 10.25MHz, in test or application circuit, (unless otherwise noted, VinRF
antenna input).
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
AM SECTION
Global
VINRF
min
Max. sensitivity
Ref.: VINRF = 74dB
µV,
∆V37 = -10dB
19
dB
µV
VINRF us Usable sensitivity
(S+N)/N = 20 dB
30
26
dB
µV
∆VINRF AGC Range
Ref.: VINRF = 74dB
µV,
∆V37 = -10dB
51
dB
(S+N)/N
Signal to Noise Ratio
Ref.: VINRF = 74dB
µV
49
56
dB
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



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