mk484 ETC-unknow, mk484 Datasheet
mk484
Manufacturer Part Number
mk484
Description
Mk484 Radio Ic
Manufacturer
ETC-unknow
Datasheet
1.MK484.pdf
(2 pages)
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Description
The MK484 is a monolithic integrated circuit designed in a TO92 package for use as a one chip radio solution, high
sensitivity and high quality AM radio is possible with very few external components.
Special features of the circuit include low supply voltage operation, the
device is particularly suited to small hand-held radios.
Features
§
§
§
§
Maximum Ratings
Electrical Characteristics
Example Circuit
This circuit provides a complete RF amplifier, Detection and AGC circuit, which requires only a
few external components to give a high quality AM Tuner. Good audio quality can be achieved,
and current consumption is extremely low. No setting up or alignment is required and the circuit
is completely stable in use.
The MK484 has an input impedance of 4M
3MHz. The IC will run off a DC supply of between 1.1V and 1.8V. A current drain of 0.3mA
makes it suitable for battery operation. The IC provides an output of 40 to 60 mV.
Rapid Electronics Ltd
Stable operation with 1.1V
Low Drain Current
Small and light weight (TO92 Package)
Wide AGC Ranging
Operating Temperature
Telephone 01206 751166
Storage Temperature
Supply Voltage
MK484 RADIO IC
The enclosed information is believed to be correct, Information may change ‘without notice’ due to
Total Harmonic Distortion
product improvement. Users should ensure that the product is suitable for their use. E. & O. E.
Item
Input Resistance
Supply Voltage
Output Voltage
Rapid Electronics Ltd, Severalls Lane, Colchester, Essex, England, CO4 5JS
Drain Current
Cover Range
AGC Range
Power Gain
Item
Symbol
Modulation 1,000Hz 40%, Vin = 1mV
T
T
V
V
opr
stg
cc
CC
= 1.4V, R
MK484 RADIO IC
Symbol
(1) R
-40 to +125
-30 to +80
V
A
V
I
Z
G
CC
OUT
Fax 01206 751188
Rating
GC
CC
IN
-
R
P
1.5
AGC
AGC
and operates over a frequency range of 150KHz to
= 100 – 1.5K
Min
= 1.5K , = 1,000K
150
1.1
0.8
30
-
-
-
-
Unit
ºC
ºC
V
Typ
1.4
0.3
70
4
4
-
-
-
3,000
Max
(RMS)
1.8
1.5
Hz
e-mail sales@rapidelec.co.uk
-
-
-
-
-
Pin No.
82-1026
1
2
3
Symbol
DATA SHEET
Vss
O/P
I/P
Unit
KHz
M
mV
mA
dB
dB
1 2 3
%
V
484
MK
Description
Output
Page 1 of 2
Input
Gnd
15/02/2001
Revision B
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mk484 Summary of contents
Page 1
... Rapid Electronics Ltd Description The MK484 is a monolithic integrated circuit designed in a TO92 package for use as a one chip radio solution, high sensitivity and high quality AM radio is possible with very few external components. Special features of the circuit include low supply voltage operation, the device is particularly suited to small hand-held radios ...
Page 2
Cont’d.. The coil needs approximately 55 turns of 0.315mm diameter enamelled copper wire on a 100mm long ferrite rod. A process of trial and error will help you achieve the optimum number of windings on the ferrite rod. In general ...