ML1490
RF/IF/Audio Amplifier
Wideband Amplifier With AGC
Legacy Device:
Motorola MC1490
The ML1490 is an integrated circuit featuring
wide–range AGC for use in RF/IF amplifiers and audio
amplifiers.
• High Power Gain:
50 dB Typ at 10 MHz
45 dB Typ at 60 MHz
35 dB Typ at 100 MHz
• Wide Range AGC: 60 dB Min, DC to 60 MHz
• 6.0 V to 15 V Operation, Single Polarity Supply
• Operating Temperature Range TA = –40° to +85°C
Note: See Similar ML1350 For Possible Option
MAXIMUM RATINGS
(TA = +25°C, unless otherwise noted.)
Rating
Power Supply Voltage
AGC Supply
Input Differential Voltage
Operating Temperature Range
Storage Temperature Range
Junction Temperature
Symbol
VCC
VAGC
VID
TA
Tstg
TJ
Value
+18
VCC
5.0
–40 to +85
–65 to +150
+150
Unit
Vdc
Vdc
Vdc
°C
°C
°C
VCC
GND
2
– +
3
4
(Top View)
Output
(–)
1
8
Output
(+)
8
1
P DIP 8 = PP
PLASTIC PACKAGE
CASE 626
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE
MOTOROLA
LANSDALE
P DIP 8
MC1490P
ML1490PP
Note:
Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from
ML
to
MLE.
PIN CONNECTIONS
7 Substrate
Ground
6
5
Noninverting
Input
AGC
Input
Representative Schematic Diagram
2
1.5 k
VAGC
5
470
2.0 k
470
70
5.5 k 12.1 k
8 (+)
Outputs
(–)
1
45
66
6
5.0 k
5.0 k
5.6 k
1.1 k 1.1 k
8.4 k
Substrate
1.9k
200
3
7
1.4 k
2.8 k
200 200 2.8 k
VCC
Inverting
Input
SCATTERING PARAMETERS
(VCC = +12 Vdc, TA = +25°C, Zo = 50
Ω)
f = MHz
Typ
Parameter
Input
Reflection
Coefficient
Output
Reflection
Coefficient
Forward
Transmission
Coefficient
Reverse
Transmission
Coefficient
Symbol
|S11|
θ11
|S22|
θ22
|S21|
θ21
S12
θ12
30
0.95
–7.3
0.99
–3.0
16.8
128
0.00048
84.9
60
0.93
–16
0.98
–5.5
14.7
64.3
0.00092
79.2
Unit
–
deg
–
deg
–
deg
–
deg
4
(–)
(+)
Inputs
Pins 3 and 7 should both be connected to circuit ground.
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