TDA7512 データシートの表示（PDF） - STMicroelectronics

部品番号

コンポーネント説明

メーカー

TDA7512

AM/FM CAR RADIO TUNER IC WITH INTELLIGENT SELECTIVITY SYSTEM (ISS)

STMicroelectronics 

TDA7512

Table 3. ELECTRICAL CHARACTERISTICS (continued)

Tamb = +25°C, VCC1 = VCC2 = VCC3 = VCCVCO = VCCMIX1 = VCCIF1=8.5V, fRF = 98MHz, dev. = 40kHz,

fMOD = 1kHz, fIF1 = 10.7MHz, fIF2 = 450KHz, fXtal = 10.25MHz, in application circuit, unless otherwise

specified.

Symbol

Parameter

Test Condition

Min. Typ. Max. Unit

IF1 Amplifier1 +2 (10.7MHz)

Gmin Min. gain

Gmax Max. gain

RIN Input resistance

ROUT Output resistance

CP1dB 1dB compression point

IIP3 3rd order Intermodulation

IFG

IFG

referred to 330Ω input

referred to 330Ω input

18

dB

26

dB

330

Ω

330

Ω

105

dBµV

126

dBµV

Mixer2 (450kHz)

RIN Input impedance

V46 Max. input voltage

V48 Limiting sensitivity

G Mixer gain

S/N = 20dB

330

Ω

900

mVRM

S

25

µV

18

dB

Limiter 1 (450kHz)

GLimiter Gain

Demodulator, Audio Output

80

dB

THD

VMPX

MPX output signal

ROUT Output resistance

|∆V|min DC offset fine adjust

|∆V|max DC offset fine adjust

S/N

Quality Detection

Dev.= 75kHz, V46 = 10mVRMS

Dev.= 75kHz

DEM, MENA=1

DEM, MENA=1

Dev.= 40kHz,V46 = 10mVRMS

0.1

%

500

mVRM

S

50

Ω

8.5

mV

264

mV

76

dB

S-meter, Unweighted Fieldstrength

V46

V14

V14

∆V14

∆V14

Min. input voltage MIX2

Fieldstrength output

Fieldstrength output

voltage per decade

voltage per decade

V46 = 0VRMS

V46 = 1VRMS

SMSL = 0

SMSL = 1

10

µV

0.1

V

4.9

V

1

V

1.5

V

8/42

Share Link: