MITSUMI
Single-Chip System for Radios LMF501
Single-Chip System for Radios
Monolithic IC LMF501
Outline
This is a monolithic IC designed for use as a single-chip AM radio. It can be used to configure an AM radio
with few external components.
It is ideal for use in watch radios, lighter-radios and other applications intended to operate on low voltage and
current.
Features
Package
Absolute Maximum Ratings
1. Operation at low voltages possible
V
CC
: 1.1V
2. Operates with low current consumption
3. Compact, lightweight
4. Broad AGC range
TO-92A (LMF501T-2)
Electrical Characteristics
Item
Symbol
Ratings
Units
Operating temperature
T
OPR
-30~+80
C
Storage temperature
T
STG
-40~+125
C
Power supply current
V
CC
1.5
V
Item
Symbol
Min. Typ. Max. Units
Power supply voltage
V
CC
1.4
V
Operating output voltage
V
OUT
0.8
1.5
V
Circuit current
I
CC
0.3
mA
Practical frequency range
fR
150
3000
kHz
Input resistance
Z
IN
4
M
Audio distortion
THD
4
%
AGC range
AGC
30
dB
Power gain
Gp
70
dB
Measurement conditions: Except where noted otherwise, in measurement circuits1
V
CC
=1.4 V, RAGC=1.5k
Modulator: f=1000Hz 40%, V
IN
=1m V/rms
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