LA1266
Ordering number : EN2291B
AM/FM Tuner System Of
Electronic Tuning Type
Monolithic Linear IC
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
Functions
FM : IF amplifier, quadrature detector, AF
preamplifier, signal meter, IF count
outputlifier, tuning indicator drive output
(common with stop signal, muting drive
output)
AM : RF amplifier, MIX, OSC (with ALC), IF
amplifier, detector, AGC, signal meter, tuning
indicator drive output (common with stop
signal), IF count output, local OSC buffer.
Features
• Minimum number of external parts required.
• Excellent S/N
• Local OSC with ALC
• Local OSC buffer
• Tuning indicator pin (common with narrow-band
stop signal and muting drive output)
• Variable stop sensitivity (variable separately for
FM, AM)
• Less tweet interference
• Signal meter pin
• IF count output
Specifications
Maximum Ratings
at Ta=25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
CC
max Pins 7,8,20 16 V
Flow-in current I
8
Pin 8 20 mA
Flow-out current I
22
Pin 22 1 mA
I
24
Pin 24 2 mA
Allowable power dissipation Pd max Ta≤60°C 700 mW
Operating temperature Topr –20 to +70 °C
Storage temperature Tstg –40 to +125 °C
Operating Conditions at Ta=25°C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
CC
8.5 V
Operating voltage range V
CC
op 6 to 14 V
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