TDA7220D datasheet(4/16 Pages) STMICROELECTRONICS

部件名	TDA7220D

功能描述	VERY LOW VOLTAGE AM-FM RADIO

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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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

ID

Drain Current

AM Section

FM Section

8

7

15

13

mA

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

VI

Input Sensitivity

S/N = 26dB, m = 0.3

15

25

µV

S/N

Signal to Noise

VI = 1mV, m = 0.3

40

48

dB

∆VI

AGC Range

∆VOUT = 10dB, m = 0.8

90

dB

VO

Recovered Audio Signal (Pin 9)

VI = 1mV, m = 0.3

40

75

mV

d

Distortion

0.5

%

VH

Max. Input Signal Handling Capability

m = 0.8, d < 10%

0.5

V

RI

Input Resistance between Pins 2 and 4

m = 0

7.5

k

Ω

CI

Input Capacitance between Pins 2 and 4

m = 0

18

pF

RO

Output Resistance (Pin 9)

4.5

k

Ω

Tweet 2 IF

VI = 1mV, m = 0.3

40

dB

Tweet 3 IF

55

dB

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

VI

Input Limiting Voltage

- 3dB limiting point

50

µV

AMR

Amplitude Modulation Rejection

∆f= ± 22.5kHz, VI = 3mV,

m= 3

34

dB

S/N

Signal to Noise

∆f= ± 22.5kHz, VI = 1mV

55

dB

d

Distortion

∆f= ± 22.5kHz, VI = 1mV

0.6

%

VO

Recovered Audio SIgnal (Pin 9)

∆f= ± 22.5kHz, VI = 1mV

55

mV

RI

Input Resistance between Pin 16 and Ground

6.5

k

Ω

CI

Input Capacitance between Pin 16 and Ground

14

pF

RO

Output Resistance (Pin 9)

4.5

k

Ω

TDA7220

4/16

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