TDA7220 データシートの表示（PDF） - STMicroelectronics

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TDA7220

VERY LOW VOLTAGE AM-FM RADIO

STMicroelectronics 

TDA7220

ELECTRICAL CHARACTERISTICS (Tamb = 25oC, VS = 1.6V, unless specified, refer to Test Circuit)

Symbol

ID

Drain Current

Parameter

Test Conditions

AM Section

FM Section

Min. Typ. Max. Unit

8 15 mA

7 13 mA

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

VI

Input Sensitivity

S/N Signal to Noise

∆VI AGC Range

VO Recovered Audio Signal (Pin 9)

d

Distortion

VH Max. Input Signal Handling Capability

RI

Input Resistance between Pins 2 and 4

CI

Input Capacitance between Pins 2 and 4

RO Output Resistance (Pin 9)

Tweet 2 IF

Tweet 3 IF

S/N = 26dB, m = 0.3

VI = 1mV, m = 0.3

∆VOUT = 10dB, m = 0.8

VI = 1mV, m = 0.3

m = 0.8, d < 10%

m=0

m=0

VI = 1mV, m = 0.3

15 25 µV

40 48

dB

90

dB

40 75

mV

0.5

%

0.5

V

7.5

kΩ

18

pF

4.5

kΩ

40

dB

55

dB

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

VI

Input Limiting Voltage

AMR Amplitude Modulation Rejection

S/N Signal to Noise

d

Distortion

VO Recovered Audio SIgnal (Pin 9)

RI

Input Resistance between Pin 16 and Ground

CI

Input Capacitance between Pin 16 and Ground

RO Output Resistance (Pin 9)

- 3dB limiting point

∆f = ± 22.5kHz, VI = 3mV,

m=3

∆f = ± 22.5kHz, VI = 1mV

∆f = ± 22.5kHz, VI = 1mV

∆f = ± 22.5kHz, VI = 1mV

50

µV

34

dB

55

dB

0.6

%

55

mV

6.5

kΩ

14

pF

4.5

kΩ

4/16

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