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LA1231 View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
Manufacturer
LA1231
SANYO
SANYO -> Panasonic SANYO
LA1231 Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
LA1231N
Features
• High sensitivity on limiting : 18µV typ.
• Low distortion : 0.05% typ. determined by the linearity of phase characteristics in phase shifting circuit.
• High demodulation output : 330 mVrms typ.
• High S/N ratio : 78.5dB typ.
• Muting at detuning with little shock noise.
• Single meter drive output proportional with the input signal level dB.
• Detuning muting band having good symmetrics.
• Tuning meter driving output having wide swing width.
• Delay AGC drive output for front end.
• Constant voltage circuit is built-in : operation voltage=9 to 14V.
• Muting characteristics between adjacent stations are distinguished.
Equivalent Circuit Block Diagram
Voltage regulator
IF amp/limiter
Guadrature
limiter
Guadrature
det
AFC/tuning
meter drive
Level Level Level Level Level
DC
det
det
det
det
det
level
IF amp
stop
Signal meter
drive
Mute drive
AF amp
Mute
control
Specifications
Maximum Ratings at Ta=25°C
Parameter
Symbol
Maximum supply voltage
VCCmax
Maximum input voltage
VIN
Maximum supply current
ICC
Maximum flow-in current
I15
I16
Maximum flow-out current
I10
I12
I13
Allowable power dissipation
I15
Pd max
Operating temperature
Topr
Storage temperature
Tstg
Pin 11
Pins 1-2
Pin 11
Pin 15
Pin 16
Pin 10
Pin 12
Pin 13
Pin 15
Conditions
Ratings
16
±1
40
1
1
2
2
2
2
650
–20 to +70
–40 to +125
Unit
V
Vp-p
mA
mA
mA
mA
mA
mA
mA
mA
°C
°C
No.660-2/8
 

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