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
1.
2.
3.
4.
Operation at low voltages possible
Operates with low current consumption
Compact, lightweight
Broad AGC range
V
CC
: 1.1V
Package
TO-92A (LMF501T-2)
Absolute Maximum Ratings
Item
Operating temperature
Storage temperature
Power supply current
Symbol
T
OPR
T
STG
V
CC
Ratings
-30~+80
-40~+125
1.5
Units
擄
C
擄
C
V
Electrical Characteristics
Item
Power supply voltage
Operating output voltage
Circuit current
Practical frequency range
Input resistance
Audio distortion
AGC range
Power gain
Symbol
V
CC
V
OUT
I
CC
fR
Z
IN
THD
AGC
Gp
30
70
150
4
4
0.8
0.3
Min. Typ. Max. Units
1.4
1.5
V
V
mA
3000 kHz
M鈩?/div>
%
dB
dB
Measurement conditions: Except where noted otherwise, in measurement circuits1
V
CC
=1.4 V, RAGC=1.5k鈩?/div>
Modulator: f=1000Hz 40%, V
IN
=1m V/rms
1
2
