LA8670M
No.4930-1/10
Overview
The LA8670M is a narrow band FM IF system for use in communication equipment. In addition to the functions
required for FM reception, the LA8670M provides a rich set of additional functions including noise detection and
field strength detection, and is thus optimal for cordless telephones.
Functions
First mixer, first local oscillator, first local oscillator buffer output, second mixer, second local oscillator
IF amplifier, limiter, quadrature detector
Signal meter
Noise detector, noise amplifier, noise wave detector, schmitt trigger
Features
Low voltage operation: VCC op=1.8 to 6V
Signal meter linear over a wide range (70dB typical)
High sensitivity, high intercept point
Specifications
Maximum Ratings
at Ta=25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
7.0
V
Allowable power dissipation
Pd max
Ta≤75°C
150
mW
Operating temperature
Topr
--20 to +75
°C
Storage temperature
Tstg
--40 to +125
°C
Operating Conditions
at Ta=25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
3.0
V
Operating supply voltage
VCC op
1.8 to 6.0
V
80906 / 13106 SY IM / 52095TH (OT)
LA8670M
Monolithic Linear IC
Double-Conversion Narrow-Band
FM IF System
Ordering number : EN4930B
SANYO Semiconductors
DATA SHEET
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before usingany SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.