HMC321LP4 / 321LP4E v03.0805 GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Typical Applications Features This switch is suitable for usage in DC - 8.0 GHz 50- Broadband Performance: DC - 8 GHz Ohm or 75-Ohm systems: High Isolation: >30 dB 6 GHz Broadband Low Insertion Loss: 2.5 dB 6 GHz Fiber Optics Integrated Positve Supply 3:8 TTL Decoder Switched Filter Banks 4x4 mm SMT Package Wireless below 8 GHz Functional Diagram General Description The HMC321LP4 & HMC321LP4E are broadband non- re flective GaAs MESFET SP8T switches in low cost 10 leadless surface mount packages. Covering DC to 8 GHz, this switch offers high isolation and low inser- tion loss. This switch also includes an on board binary decoder circuit which reduces the required logic con- trol lines to three. The switch operates using a positive control voltage of 0/+5 volts, and requires a fi xed bias of +5v. This switch is suitable for usage in 50-Ohm or 75-Ohm systems. * DC blocking capacitors are required at ports RFC and RF1, 2, 3, 4, 5, 6, 7, 8. Their value will determine the lowest transmission frequency. Electrical Specifi cations, T = +25 C, With 0/+5V Control, 50 Ohm System A Parameter Frequency Min. Typ. Max. Units DC - 2.0 GHz 2.3 2.7 dB Insertion Loss DC - 4.0 GHz 2.5 2.9 dB DC - 8.0 GHz 2.7 3.1 dB DC - 2.0 GHz 35 40 dB DC - 4.0 GHz 30 35 dB Isolation DC - 6.0 GHz 25 30 dB DC - 8.0 GHz 20 25 dB DC - 4.0 GHz 8 12 dB Return Loss On State DC - 8.0 GHz 7 10 dB Return Loss (RF1 - RF8) Off State 2.0 - 8.0 GHz 7 12 dB Input Power for 1 dB Compression 0.5 - 8.0 GHz 19 23 dBm Input Third Order Intercept 0.5 - 8.0 GHz 33 40 dBm (Two-tone Input Power = +7 dBm Each Tone, 1 MHz Spacing) Switching Characteristics 50 ns tRISE, tFALL (10/90% RF) DC - 8.0 GHz 150 ns tON, tOFF (50% CTL to 10/90% RF) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 10 - 172 Order On-line at www.hittite.com OBSOLETE SWITCHES - SMTHMC321LP4 / 321LP4E v03.0805 GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Insertion Loss vs. Temperature Isolation 0 0 RF1 -10 RF2 -1 RF3 RF4 -20 RF5 RF6 RF7 -2 -30 RF8 -40 -3 -50 +25 C -4 -40 C +85 C -60 -5 -70 01 23 456 7 89 01 23 456 7 89 FREQUENCY (GHz) FREQUENCY (GHz) 10 Return Loss 0.1 and 1 dB Input Compression Point 0 30 -5 25 -10 20 -15 0.1db Compression Point 15 RFC 1dB Compression Point -20 RF1-8 ON RF1-8 OFF -25 10 01 23 456 7 89 1 234 567 8 FREQUENCY (GHz) FREQUENCY (GHz) Input Third Order Intercept Point 50 45 40 35 30 1 234 567 8 FREQUENCY (GHz) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 10 - 173 Order On-line at www.hittite.com OBSOLETE RETURN LOSS (dB) INSERTION LOSS (dB) INPUT THIRD ORDER INTERCEPT (dBm) INPUT COMPRESSION POINT (dBm) ISOLATION (dB) SWITCHES - SMT