AN7223 查看數據表（PDF） - Panasonic Corporation

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AN7223

AM Tuner, FM/AM IF Amplifier Circuit for Radio Cassette Recorder

Panasonic Corporation 

ICs for FM/AM Tuner

s Pin Descriptions

Pin No.

Pin Name

1 FM IF Amp. Input

2 VCC (AM)

3 AM RF Amp. Input

4 AM Mixer Output

5 AGC Output (2)

6 AGC Output (1)

7 AM IF Amp. Input

8 IF By-pass

9 IF By-pass

Pin No.

Pin Name

10 AM Detection Output

11 GND

12 FM Detector Coil

13 AF Output

14 VCC

15 Level Meter Output

16 AFC Output

17 Reference Voltage

18 Local Oscillation

s Absolute Maximum Ratings (Ta=25˚C)

Parameter

Symbol

Supply Voltage

VCC

Power Dissipation

PD

Operating Ambient Temperature

Topr

Storage Temperature

Tstg

Rating

14.4

317

–20 ~ + 75

–55 ~ + 150

AN7223

Unit

V

mW

˚C

˚C

s Electrical Characteristics (VCC =5V, Ta= 25˚C)

Parameter

Symbol

Condition

Total Circuit Current

Demodulation Output Level

Limiting Sensitivity

FM Muting Sensitivity

Signal Meter Driving

Output 1

Signal Meter Driving

Output 2

Itot

υO (FM)

Vi (lim)

Vi (mute)

V15

V15

(DC measurement)

Vi= 80dBµ, f=10.7MHz,

fdev.= 22.5kHz, fm= 400Hz

Input at υO= –3dB

Input at υO= less than –20dB

Vi= 50dBµ, f=10.7MHz,

fdev.= 22.5kHz, fm= 400Hz

Vi= 80dBµ, f= 10.7MHz,

fdev.= 22.5kHz, fm= 400Hz

Total Circuit Current

Detection Output Level

Itot

υO (AM)

(DC measurement)

Vi= 80dBµ, f= 1MHz,

Mod.= 30%, fm= 400Hz

AM Max.Sensitivity

Signal Meter Driving

Output 1

Signal Meter Driving

Output 2

Smax.

Input at υO= 10mV

V15

Vi= –10dBµ, f= 1MHz,

Mod.= 30%, fm= 400Hz

V15

Vi= 80dBµ, f= 1MHz,

Mod.= 30%, fm= 400Hz

min.

9

75

41.5

45

120

1.14

8

60

4.5

0

1.12

typ.

14

100

44.5

50

600

max.

20

125

47.5

59

1150

Unit

mA

mV

dBµ

dBµ

mV

1.26 1.42

V

13

19 mA

80 100 mV

9.5 12.5 dBµ

130 mV

1.25 1.38

V

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