TDA7529 Datasheet, PDF (20/60 Pages) STMicroelectronics – RF front-end for AM/FM DSP car-radio with IF sampling

Electrical specifications
TDA7529
4.4
FM - section
Refer to application circuit in figure 3. V_CC = 4.7V to 5.35V; T_amb = -40 to +105°C; f_c = 76 to
108 MHz; 60dBµV antenna level; mono signal, unless otherwise specified. Antenna level
equivalence: 0dBµV = 1µV_rms, all RF levels are intended as PD.
Table 11. FM - section
Symbol
Parameter
Test Condition, Comments Min
Typ
Max Units
FM IMR Mixer and active balun
G_mix1
Mixer conversion gain
Gain attenuation range
R_in
Input impedance
R_out
V_{out_max}
Output impedance
Max. output voltage
v_noise Input noise voltage
IIP3
3^rd order intercept point⁽¹⁾
IIP2
2^nd order intercept point
IRR Image rejection ratio
FM RF AGC
Mixer input referred
L_thr
RF level threshold
Threshold steps
Pin diode source current
Pin diode sink current
Pin diode source current in
constant current mode
Threshold shift keyed AGC
1. parameter guaranteed by correlation.
mode 1 (unloaded)
mode 2 (unloaded)
controlled by IF-AGC
mode 1
mode 2
active balun
without clipping (unloaded)
Mode1, Rsource=1.5kΩ,
noiseless
Mode 2, Rsource=800,
noiseless
mode 1
up to Vin/tone = 90 dBµV
mode 2
up to Vin/tone = 98 dBµV
mode 1
mode 2
without gain/phase adjust
with gain/phase adjust
mode 1, min. setting
mode 1, max setting
mode 2, min. setting
mode 2, max setting
4 bit control
AGC control pin 1
Logarithmic current
AGC control pin 1
Logarithmic current
Control input = 1V
20
22
24
dB
14
16
18
18
20
dB
30
50
kΩ
5
6.5
9.5
15
20
30
Ω
122
dBµV
3
3.7
nV/√Hz
5
6
123
125
132
134
144
152
30
40
45
dBµV
dBµV
dB
82
85
88
97
100
103
dBµV
90
93
96
105
108
111
0.5
1
1.5
dB
10
mA
-3
mA
1
2
mA
10.5 12.5 13.5 dB/V
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