TDA7511 Просмотр технического описания (PDF) - STMicroelectronics

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TDA7511

AM/FM TUNER FOR CAR RADIO AND HIFI APPLICATIONS

STMicroelectronics 

TDA7511

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

IP3 3rd order intercept point

122

dBµV

F

Noise figure

6

dB

AC Conversion gain

120

mS

IF1 Amplifier1 & 2 (10.7MHz)

Amin Min. gain

IFG

9

dB

Amax Max. gain

IFG

15

dB

RIN Input resistance

330

Ω

ROUT Output resistance

330

Ω

P1dB 1dB compression point

Output referred

120

dBµV

IP3 3rd order Intercept Point

Output referred

132

dBµV

Mixer2 (450kHz)

RIN Input impedance

330

Ω

V46 Max. input voltage

900

mVRM

S

V48 Limiting sensitivity

S/N = 20dB

25

µV

A Mixer gain

18

dB

Limiter 1 (450kHz)

GLimiter Gain

80

dB

Demodulator, Audio Output

THD

Dev.= 75kHz, V46 = 10mVRMS

0.1

%

VMPX MPX output signal

Dev.= 75kHz

500

mVRM

S

ROUT Output resistance

350

Ω

|∆V|min DC offset fine adjust

DEM, MENA=1

6

mV

|∆V|max DC offset fine adjust

DEM, MENA=1

186

mV

S/N

Dev.= 40kHz,V46 = 10mVRMS

75

dB

Quality Detection

S-meter, Unweighted Fieldstrength

V46 Min. input voltage MIX2

10

µV

∆V Per decade

SMSL = 0

1

V

∆V Per decade

SMSL = 1

1.5

V

V14 Fieldstrength output

V46 = 0VRMS

0.1

V

V14 Fieldstrength output

V46 = 1VRMS

4.9

V

ROUT Output resistance

4

kΩ

7/41

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