TDA7512 datasheet(12/42 Pages) STMICROELECTRONICS

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TDA7512

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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

min

Max. sensitivity

Ref.: VINRF = 60dB

µV,

µV

VANT us

Usable sensitivity

(S+N)/N = 20 dB

µV

∆VANT IF2 AGC Range

Ref.: VINRF = 60dB

µV,

(S+N)/N

Signal to Noise Ratio

Ref.: VINRF = 60ddB

µV

aIF

IF rejection

Ref: VINRF = 60dBµV,

IF1 = 10.7MHz

IF2 = 450kHz

100

fAF

Frequency response

Ref.: VINRF = 60dB

µV,

∆VAF = -3 dB

3.6

kHz

THD

Total Harmonic Distortion

VINRF = 60dB

µV, 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 = 60dB

µV

220

mVRM

V34

Output level

VINRF = 60dB

µ, m=off

190

mVRM

Min. RF AGC threshold

Max. RF AGC threshold

WAGC

109

µV

V58

Min. IF AGC threshold

Max. IF AGC threshold

WAGC

109

µV

V58

Min. DAGC threshold

Max. DAGC threshold

DAGC

µV

|I40max|

AGC2 charge current

seek

160

µA

CCR

Charge current ratio

seek/seek off

AGC Voltage Driver Output

Max. AGC output voltage

3.5

Min. AGC output voltage

0.5

| I4 |

AGC current

100

µA

AGC PIN Diode Driver Output

AGC driver current

-2

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