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TDA7529 データシート(PDF) 21 Page - STMicroelectronics

部品番号 TDA7529
部品情報  RF front-end for AM/FM DSP car-radio with IF sampling
PDF  60 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7529 データシート(HTML) 21 Page - STMicroelectronics

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TDA7529
Electrical specifications
21/60
4.5
AM - section
Refer to application circuit in figure 3. VCC = 4.7V to 5.35V; Tamb = -40 to +105°C; LW, MW
and SW bands; 74dBµV antenna level, unless otherwise specified. Antenna level
equivalence: 0dBµV = 1µVrms, all RF levels are intended as EMF.
Table 12.
AM - section
Symbol
Parameter
Test Condition, Comments
Min
Typ
Max
Units
AM IMR Mixer and active balun
Gmix1
Mixer conversion gain
7.2
9
10.5
dB
Δgmix1
Gain attenuation range
controlled by IF-AGC
18
20
dB
Rin
Input impedance
5
6.5
9.5
k
Ω
Rout
Output impedance
15
20
30
W
Min. external load
400
W
Vin_max
Max. output voltage
without clipping (unloaded)
122
dBµV
Vnoise
Input noise voltage
6
8.3
nV/
√Hz
IIP3
3rd order intercept point
130
134
dBµV
IIP2
2nd order intercept point
159
dBµV
IRR
Image rejection ratio
without gain/phase adjust
30
dB
IRR
Image rejection ratio
with gain/phase adjust
40
45
dB
AM RF AGC
External capacitance for time constant from 1nF to 4700nF – time constant values are directly proportional to the
external capacitor value
Lthr
Mixer input referred
RF level threshold
min. setting
83
86
89
dBµV
max setting
98
101
104
threshold steps
4 bit control
0.5
1
1.5
dB
Pin diode source current
AGC control pin 1
Logarithmic current
10
mA
Min. voltage
AGC control pin 1 with 5µA
sink current
0.1
V
Isink
5µA sink current
5
10
µA
Pin diode source current in
constant current mode
1mA
Max. voltage
AGC control pin 1
VCC-
1.4
VCC-1.2
V
Max. output voltage in GPO
mode
AGC control pin 2
VDD-
0.3
VDD
V
Min. output voltage
AGC control pin 2
0.3
V



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