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TDA7529 Datasheet(PDF) 21 Page - STMicroelectronics

Part # TDA7529
Description  RF front-end for AM/FM DSP car-radio with IF sampling
PDF  61 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7529 Datasheet(HTML) 21 Page - STMicroelectronics

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TDA7529
Electrical specifications
Doc ID 13311 Rev 4
21/61
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
Ω
-
Min. external load
-
400
-
-
Ω
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
-1
-
-
mA
-
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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