AS259M1-12 Datasheet, PDF (1/2 Pages) Alpha Industries – GaAs IC SPST Non-Reflective Switch DC

GaAs IC SPST Non-Reflective
Switch DC–2.5 GHz
Features
s High Isolation (50 dB @ 0.9 GHz)
s Low DC Drain
s Reflective Open, J₁ Port
s Non-Reflective, J₂ Port
Description
The AS259M1-12 is a non-reflective SPST switch
designed for low cost, low power commercial applications.
Ideal for use as building blocks for high isolation multi-
throw switches.
SOIC-8
PIN 8
PIN 1
INDICATOR
PIN 1
0.068
(1.73 mm) MAX.
0.197 (5.00 mm)
0.189 (4.80 mm)
0.010 (0.25 mm)
0.004 (0.10 mm)
AS259M1-12
0.050 (1.27 mm) BSC
0.244 (6.20 mm)
0.228 (5.80 mm)
0.020 (0.51 mm) MAX.
0.049
(1.24 mm)
0.016
(0.41 mm)
0.016 MAX.
(0.41 mm) x
45˚ CHAMFER
8˚
MAX.
0.158 (4.00 mm)
0.150 (3.80 mm)
0.010 (0.25 mm)
0.007 (0.17 mm)
Electrical Specifications at 25°C (0, -5 V)
Insertion Loss³
Parameter¹
Isolation
VSWR⁴
Frequency²
DC–0.5 GHz
DC–1.0 GHz
DC–2.5 GHz
DC–0.5 GHz
DC–1.0 GHz
DC–2.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.5 GHz
Min.
53
45
30
Typ. Max. Unit
.65
0.9
dB
.75
1.0
dB
1.0
1.2
dB
58
dB
48
dB
35
dB
1.2:1
1.3:1
1.5:1
1.4:1
1.6:1
1.8:1
Operating Characteristics at 25°C (0, -5 V)
Parameter
Switching Characteristics⁵
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
Frequency
Input Power for 1 dB Compression
0.50–2.0 GHz
0.05 GHz
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +13 dBm
0.50–2.0 GHz
0.05 GHz
Control Voltages
V_Low = 0 to -0.2 V @ 20 µA Max.
V_High = -5 V @ 20 µA to -9 V @ 200 µA Max.
1. All measurements made in a 50 Ω system, unless otherwise specified.
2. DC = 300 kHz.
3. Insertion loss changes by 0.003 dB/°C.
4. Insertion loss state and J₂ Port.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
Min.
Typ.
3
6
20
+24
+16
+46
+35
Max.
Unit
ns
ns
mV
dBm
dBm
dBm
dBm
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [e-mail] • www.alphaind.com
1
Specifications subject to change without notice. 3/99A