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LA1805

Features: • FM/AM/MPX functions contained on a single chip.• Minimum number of external parts required.• On-chip FM muting function.• High sensitivity.• Less carrier leak of MPX.Specifications Parameter Symbol Conditions Ratings Unit Maximum supply voltage...

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SeekIC No. : 004390246 Detail

LA1805: Features: • FM/AM/MPX functions contained on a single chip.• Minimum number of external parts required.• On-chip FM muting function.• High sensitivity.• Less carrier le...

LA1805 Data Sheet

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Part Number:
LA1805
Supply Ability:
5000

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  • 1~5000
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  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• FM/AM/MPX functions contained on a single chip.
• Minimum number of external parts required.
• On-chip FM muting function.
• High sensitivity.
• Less carrier leak of MPX.


Specifications

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VCC max Pins 3, 7, 8, 11, 20, 21 9 V
Maximum supply current ICC max Pins 3+20+21 50 mA
Flow-in current
(Indicator drive current)		 ILED Pins 7, 8 20 mA
Flow-out current I23 Pin 23 0.1 mA
Allowable power dissipation Pd max Ta70°C 500 mW
Operating temperature Topr   20 to +70 °C
Storage temperature Tstg   40 to +125 °C



Description

The LA1805 is a characteristics-improved version of the LA1810, with the same pin assignment and package as those of the LA1810. Improvements are made on the following point :
• Separation (35dB48dB) and its dependence on freerunning frequency (Sep fF Characteristic on page 4).
• FM main distortion (0.8%0.45%).
• AM detection output (approximately 5dB increased). The constants on five external parts are changed as shown on page 10.




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