TDA7529 datasheet(20/60 Pages) STMICROELECTRONICS

20 / 60 page

Electrical specifications

TDA7529

20/60

4.4

FM - section

Refer to application circuit in figure 3. VCC = 4.7V to 5.35V; Tamb = -40 to +105°C; fc = 76 to

108 MHz; 60dBµV antenna level; mono signal, unless otherwise specified. Antenna level

equivalence: 0dBµV = 1µVrms, 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

Gmix1

Mixer conversion gain

mode 1 (unloaded)

mode 2 (unloaded)

Gain attenuation range

controlled by IF-AGC

Rin

Input impedance

mode 1

mode 2

6.5

9.5

Rout

Output impedance

active balun

Vout_max

Max. output voltage

without clipping (unloaded)

122

dBµV

vnoise

Input noise voltage

Mode1, Rsource=1.5k

Ω,

noiseless

33.7

nV/

√Hz

Mode 2, Rsource=800,

noiseless

IIP3

3rd order intercept point(1)

mode 1

up to Vin/tone = 90 dBµV

mode 2

up to Vin/tone = 98 dBµV

123

132

125

134

dBµV

IIP2

2nd order intercept point

mode 1

mode 2

144

152

dBµV

IRR

Image rejection ratio

without gain/phase adjust

with gain/phase adjust

FM RF AGC

Lthr

Mixer input referred

RF level threshold

mode 1, min. setting

dBµV

mode 1, max setting

100

103

mode 2, min. setting

mode 2, max setting

105

108

111

Threshold steps

4 bit control

0.5

1.5

Pin diode source current

AGC control pin 1

Logarithmic current

Pin diode sink current

AGC control pin 1

Logarithmic current

-3

Pin diode source current in

constant current mode

Threshold shift keyed AGC

Control input = 1V

10.5

12.5

13.5

dB/V

parameter guaranteed by correlation.

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