LA1823 View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LA1823

Single-Chip Tuner ICs for Use in Radio Cassette Recorder

SANYO -> Panasonic 

Continued from preceding page.

Pin

number

Function

21

VCC2

22

FM-RF output

24

FM-RF input

LA1823, LA1823M

Quiescent

voltage (V)

AM

FM

4.5

4.4

Remarks

FM-FE block VCC

Power is supplied from pin 4 (VCC1) via

external resistor (10Ω)

4.5

4.4 Connect the FM-RF coil between this pin

and pin 21 (VCC2)

0

0.9

Rin = 1.8kΩ

23

GND2

0

0 FM-FE block ground

Equivalent circuit

R

21

4

22

21

24

Rin

FM Characteristics

0

--20

Signal

--40

AM out

--60

--80 VCC=4.5V

fc=98MHz

Noise

fm=1kHz, 22.5kHz dev

--100 AM=30%mod

--20

0

20

40

60

80 100 120 140

Input – dBμV EMF

AM Characteristics

0

VCC=4.5V

fc=1000kHz

fm=1kHz, 30%mod

--20

Signal

--40

--60

Noise

--80

--100

--20

0

20

40

60

80 100 120 140

Input – dB/m

FM Characteristics

5

VCC=4.5V

fc=98MHz

fm=1kHz

4

3

2

1

THD(75k)

0

THD(22.5k)

--20

0

20

40

60

80 100 120 140

Input – dBμV EMF

AM Characteristics

5

VCC=4.5V

2.5

fc=1000kHz

fm=1kHz, 30%mod

4

2.0

3

1.5

2

1.0

1

VAGC

0.5

0

--20

0

0

20

40

60

80 100 120 140

Input – dB/m

No.6854-11/12

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