TDA7511 Просмотр технического описания (PDF) - STMicroelectronics

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TDA7511

AM/FM TUNER FOR CAR RADIO AND HIFI APPLICATIONS

STMicroelectronics 

TDA7511

ELECTRICAL CHARACTERISTICS (continued)

Tamb = +25°C, VCC1 = VCC2 = VCC3 = VCCVCO = VCCMIX1 = VCCMIX2 = 8.5V, fRF = 1MHz, fMOD = 400Hz at 30%

AMfIF1 = 10.7MHz, fIF2 = 450kHz, fxtal = 10.25MHz, in test or application circuit, (unless otherwise noted, VinRF

antenna input).

Symbol

Parameter

Test Condition

Min. Typ. Max. Unit

aIF IF rejection

Ref: VINRF = 74dBµV,

IF1 = 10.7MHz

100

dB

IF2 = 450kHz

100

dB

∆V37 = -10dB

aTW Tweet

C28 = 22µF

-3

-0.7

dB

fAF Frequency response

VINRFSS Seek Stop Sensitivity

THD Total Harmonic Distortion

Ref.: VINRF = 74dBµV,

∆VAF = -3 dB

AMSS

VINRF = 74 dBµV, m = 0.8

m = 0.3

VINRF = 120 dbµV, m = 0.8

m = 0.3

3.6

kHz

20

35

45 dBµV

0.5

%

0.3

1.0

0.3

V37 Output level

VINRF = 74 dBµV

220

mVRM

S

V34 Output level

VINRF = 74 dBµ, m=off

190

mVRM

S

V3 Min. RF AGC threshold

Max. RF AGC threshold

AMAGC

Wide

82

dBµV

98.8

dBµV

V58 Min. IF AGC threshold

Max. IF AGC threshold

AMAGC

Middle

80.1

dBµV

96.8

dBµV

V3 Min. IF AGC threshold

Max. IF AGC threshold

DAGC

Narrow

32.6

dBµV

80.7

dBµV

R63OUT Output impedance

R40OUT Output impedance

R40OUT Output impedance

AMSEEK = 0

AMSEEK = 1

100

kΩ

150

kΩ

5

kΩ

AGC Voltage Driver Output

V4 Max. AGC output voltage

3.5

V

V4 Min. AGC output voltage

|I4| AGC current

0.5

V

100

µA

AGC PIN Diode Driver Output

I64 AGC driver current

1.5

mA

AM Mixer1 (10.7MHz)

RIN Input impedance

1.2

kΩ

IP3 3rd order intercept point

140

dBµV

F

Noise figure

7

dB

11/41

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