AS259M1-12 ALPHA | Alldatasheet
Document overview
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Technical content
Features
■ High Isolation (50 dB @ 0.9 GHz) ■ Low DC Drain ■ Reflective Open, J1 Port ■ Non-Reflective, J2 Port AS259M1-12
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. Parameter1 Frequency2 Min. Typ. Max. Unit Insertion Loss3 DC–0.5 GHz .65 0.9 dB DC–1.0 GHz .75 1.0 dB DC–2.5 GHz 1.0 1.2 dB Isolation DC–0.5 GHz 53 58 dB DC–1.0 GHz 45 48 dB DC–2.5 GHz 30 35 dB VSWR 4 DC–1.0 GHz 1.2:1 1.4:1 Electrical Specifications at 25°C (0, -5 V) 0.049 (1.24 mm) 0.016 (0.41 mm) 0.016 MAX. (0.41 mm) x 45˚ CHAMFER PIN 1 0.197 (5.00 mm) 0.189 (4.80 mm) 0.068 (1.73 mm) MAX. 0.010 (0.25 mm) 0.004 (0.10 mm) 0.010 (0.25 mm) 0.007 (0.17 mm) 0.158 (4.00 mm) 0.150 (3.80 mm) MAX. 0.020 (0.51 mm) MAX. 0.244 (6.20 mm) 0.228 (5.80 mm) 0.050 (1.27 mm) BSCPIN 8 PIN 1 INDICATOR Operating Characteristics at 25°C (0, -5 V) 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 J 2 Port. 5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth. SOIC-8
GaAs IC SPST Non-Reflective Switch DC–2.5 GHz AS259M1-12 2 Alpha Industries, Inc.[781] 935-5150 • Fax [617]824-4579• Emailsales@alphaind.com • www .alphaind.com Specifications subject to change without notice.3/99A 1.2 Frequency (G H z) Insertion Loss vs. Frequency dB 1.0 0.8 0.6 0.4 D C 1 2 3 0.2 +85˚C -40˚C 2.5 2.2 1.9 1.6 1.3 1.0 D C 1 2 3 Frequency (G H z) VSW R vs. Frequency D C 1 2 3 Frequency (G H z) Isolation vs. Frequency dB Typical Performance Data (0, -5 V) Characteristic Value RF Input Pow er 2 W > 500 MHz 0/-8 V
0.5 W @ 50 MHz 0/-8 V
Control Voltage +0.2 V, -10 V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C Θ JC 25°C/W Absolute Maximum Ratings Note:Exceeding these parameters may cause irreversible damage. V1 V2 J1–J2 -5 0 Insertion Loss 0 -5 Isolation Truth Table Pin Out G N D G N D J2G N D G N D 1234 8765