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2/99
0
50 Ω INPUT
0.250
(6.35)
0.450
(11.43)
0
0.075
(1.91)
0.350
(8.89)
0.200
(5.08)
0.450
(11.43)
0 0
.
2
2
5
(
5
.
7
2
)
0
.
4
5
0
(
1
1
.
4
3
)
0 .
0
.
0
7
5
(
1
.
9
1
)
0
.
2
2
5
(
5
.
7
2
)
0
.
3
7
5
(
9
.
5
3
)
50 Ω OUTPUT
0.040 ± 0.012
(1.02 ± 0.30)
(4) PLCS
DC BIAS
0.016 ± 0.002
(0.41 ± 0.05)
(4) PLCS
GND
0.050
(1.27)
(4) PLCS
0.100
(2.54)
(4) PLCS
0.010
(0.25)
0.008 ± 0.001
(0.20 ± 0.03)
0.170
(4.32)
(TYP.)
0.031
(0.79)
0.031
(0.79)
45°
0.016 ± 0.002
0.010 ± 0.002
0.008 0.012
SEE
DETAIL "A"
DETAIL A
(NO SCALE)
DIMENSIONS ARE IN INCHES (MILLIMETERS)
SMTO-8 Package for Amplifiers
* Measured in a 50-ohm system at +15 Vdc unless otherwise specified.
AS548
SPECIFICATIONS
*
Typical Values AC548
High Third Order I.P. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +35 dBm
Low Noise Figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 3.7 dB
Medium Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +19.0 dBm
High Performance Thin Film
Standard Size TO-8
Small Signal Gain (Min.) 12.5 dB 11.5 dB 11.0 dB
Gain Flatness (Max.) ±0.2 dB ±0.4 dB ±0.6 dB
Noise Figure (Max.) < 3.7 dB 4.5 dB 5.0 dB
SWR (Max.) Input < 1.5:1 1.9:1 2.0:1
Output < 1.3:1 1.4:1 1.5:1
Power Output (Min.)
@ 1dB comp. +19.0 dBm +17.8 dBm +17.0 dBm
DC Current (Max.) 58 mA 61 mA 64 mA
Guaranteed
Parameter Typical 0 to 50° C -55 to +85° C
Frequency (Min.) 5-600 MHz 5-500 MHz 5-500 MHz
Typical @ 25° C; 200 MHz AC548
Second Order Harmonic Intercept Point . . . . . . . . . +54 dBm
Second Order Two Tone Intercept Point . . . . . . . . . +48 dBm
Third Order Two Tone Intercept Point . . . . . . . . . . . +35 dBm
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -62 to 125° C
Maximum Case Temperature . . . . . . . . . . . . . . . . . . . . . . +125° C
Maximum DC Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . +17 Volts
Maximum Continuous RF Input Power . . . . . . . . . . . . . . +13 dBm
Maximum Short Term Input Power (1 Minute Max.) . . . . 50 Milliwatts
Maximum Peak Power (3 µsec Max.) . . . . . . . . . . . . . . . . 0.5 Watt
Burn-in Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . +105° C
Thermal Resistance
1
(θjc) . . . . . . . . . . . . . . . . . . . . . . . . +34.2° C/Watt
Junction Temperature Rise Above Case (Tjc) . . . . . . . . +31.3° C
1
Thermal resistance is based on total power dissipation.
INTERMODULATION PERFORMANCE
ABSOLUTE MAXIMUM RATINGS
AC548
AC548
5 TO 500 MHz
TO-8 CASCADABLE AMPLIFIER
50 OHM INPUT
+DC VOLTAGE
0.031 (0.79)
50 OHM OUTPUT
GROUND
45° ± 3°
0.033 (0.84)
0.018 ± 0.002
(0.46 ± 0.05)
(4) PLCS
0.300
(7.62)
DIA. B.C.
0.504 (12.80)
DIA.
0.025
(0.64)
0.450 (11.43)
DIA.
0.208 (5.28)
MAX.
0.185 ± 0.015
(4.70 ± 0.38)
DIA. PIN
TO-8 Package for Amplifiers
If DC is present on RF input/output, this model
requires additional external blocking capacitors.
DIMENSIONS ARE IN INCHES (MILLIMETERS)