LA1781M View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

MFG CO.

LA1781M

For Car Radios Single-Chip Tuner IC

SANYO -> Panasonic 

Input Circuits for Each Stage

LA1781M

[FM]

• Mixer input

• First IF input

75Ω 0.022μF

63

75Ω

64

75Ω

300Ω 0.022μF

56

75Ω

VIN

Actual

measurement

fr = 10.7MHz

• IF input

75Ω

300Ω 0.022μF

75Ω

fr = 10.7MHz

330Ω

0.022μF

[AM]

• First mixer input

50Ω

0.022μF

62

50Ω

fr = RF

51

50

• Second mixer input

50Ω

0.022μF

49

50Ω

fr = 10.71MHz (f2nd osc + 0.45MHz)

• IF input

50Ω

0.022μF

52

50Ω

fr = 450kHz

• Del input

50Ω

IFT

0.022μF

45

50Ω

fr = 450kHz

No.6038-42/48

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