LA1837 Ver la hoja de datos (PDF) - SANYO -> Panasonic

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LA1837

Monolithic Linear IC For Home Stereo IC with Electronic Tuning Support Single-Chip IC

SANYO -> Panasonic 

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Pin No.

Pin function

26

AFC

LA1837

Pin voltage (V)

Vreg

Pin description

The FM SD bandwidth can be modified with the

external resistor connected between this pin and pin

28.

27

AM RF input

28

REG

Vreg

Use this pin at the same potential as pin 28.

Vreg

Vreg = 3.6V

Equivalent circuit

26

27

28

29

OSC

Vreg

Use an oscillator coil between this pin and pin 28.

29

30

Oscillator buffer

1.6V (FM)

The FM SD sensitivity can be modified with the

output,

1.3V (AM) external resistor connected between this pin and

FM SD sensitivity

ground.

30

adjustment

Output impedance ro = 20Ω

Coil specifications (bottom view)

•AM oscillator (for the DUT)

HW-50425 (Mitsumi Electric Co., Ltd.)

3

4

2

1

6

3-2

2T

4-6

9T

2-1

86T

Qo ≥ 80

L = 270μH

•FM detector

600BEAS-9715Z (The Toko Electric Corporation)

3-1

22T

3

4

f = 10.7MHz

Qo = 40

Includes an internal

2

82pF capacitor.

S1

6

•IFT

YD-1073-1 (Mitsumi Electric Co., Ltd.)

3

S4

2

1S

YD-1073

6

SFU450B

1-2

58T

4-6

7T

2-3

94T

fo = 450kHz

Qo = 110

Includes an internal

180pF capacitor.

SFU450B included.

No.5688-6/9

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