TDA7220 datasheet(4/16 Pages) STMICROELECTRONICS

4 / 16 page

ELECTRICAL CHARACTERISTICS (Tamb =25

oC, VS = 1.6V, unless specified, refer to Test Circuit)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Drain Current

AM Section

FM Section

AM SECTION (fO = 1MHz, fm = 1kHz)

Input Sensitivity

S/N = 26dB, m = 0.3

µV

S/N

Signal to Noise

VI = 1mV, m = 0.3

∆VI

AGC Range

∆VOUT = 10dB, m = 0.8

Recovered Audio Signal (Pin 9)

VI = 1mV, m = 0.3

Distortion

0.5

Max. Input Signal Handling Capability

m = 0.8, d < 10%

0.5

Input Resistance between Pins 2 and 4

m = 0

7.5

Ω

Input Capacitance between Pins 2 and 4

m = 0

Output Resistance (Pin 9)

4.5

Ω

Tweet 2 IF

VI = 1mV, m = 0.3

Tweet 3 IF

FM SECTION (fO = 10.7MHz, fm = 1kHz)

Input Limiting Voltage

- 3dB limiting point

µV

AMR

Amplitude Modulation Rejection

∆f= ± 22.5kHz, VI = 3mV,

m= 3

S/N

Signal to Noise

∆f= ± 22.5kHz, VI = 1mV

Distortion

∆f= ± 22.5kHz, VI = 1mV

0.6

Recovered Audio SIgnal (Pin 9)

∆f= ± 22.5kHz, VI = 1mV

Input Resistance between Pin 16 and Ground

6.5

Ω

Input Capacitance between Pin 16 and Ground

Output Resistance (Pin 9)

4.5

Ω

TDA7220

4/16

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