TDA7512 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7512

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

STMicroelectronics 

TDA7512

Table 4. ELECTRICAL CHARACTERISTICS

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 application circuit, (unless otherwise noted,

VINRF antenna input).

Symbol

Parameter

Test Condition

Min. Typ. Max. Unit

Global

VANT Max. sensitivity

min

Ref.: VINRF = 60dBµV,

19

dBµV

VANT us Usable sensitivity

(S+N)/N = 20 dB

30

26

dBµV

∆VANT IF2 AGC Range

Ref.: VINRF = 60dBµV,

56

dB

(S+N)/N Signal to Noise Ratio

Ref.: VINRF = 60ddBµV

50

60

dB

aIF IF rejection

Ref: VINRF = 60dBµV,

IF1 = 10.7MHz

100

dB

IF2 = 450kHz

100

dB

fAF Frequency response

Ref.: VINRF = 60dBµV,

∆VAF = -3 dB

3.6

kHz

THD Total Harmonic Distortion

VINRF = 60dBµV, m = 0.8

m = 0.3

VINRF = 120 dbµV, m = 0.8

m = 0.3

0.5

%

0.3

1.0

0.3

V37 Output level

VINRF = 60dBµV

220

mVRM

S

V34 Output level

VINRF = 60dBµ, m=off

190

mVRM

S

V3 Min. RF AGC threshold

Max. RF AGC threshold

WAGC

90

dBµV

109

dBµV

V58 Min. IF AGC threshold

Max. IF AGC threshold

WAGC

90

dBµV

109

dBµV

V58 Min. DAGC threshold

Max. DAGC threshold

DAGC

74

dBµV

96

dBµV

|I40max| AGC2 charge current

seek

160

µA

CCR Charge current ratio

seek/seek off

30

AGC Voltage Driver Output

V4 Max. AGC output voltage

3.5

V

V4 Min. AGC output voltage

0.5

V

| I4 | AGC current

100

µA

AGC PIN Diode Driver Output

I5

AGC driver current

-2

mA

12/42

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