HMC345LP3 / 345LP3E v04.0805 GaAs MMIC SP4T 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: 35 dB 6 GHz Broadband Low Insertion Loss: 2.2 dB 6 GHz Fiber Optics Integrated Positive Supply 2:4 TTL Decoder Switched Filter Banks 3 x 3 mm SMT Package Wireless below 8 GHz Functional Diagram General Description The HMC345LP3 & HMC345LP3E are broadband non-re flective GaAs MESFET SP4T switches in low 10 cost leadless surface mount packages. Covering DC to 8 GHz, this switch offers high isolation and low insertion loss. This switch also includes an on board binary decoder circuit which reduces the required logic control lines to two. The switch operates using a positive control voltage of 0/+5V, and requires a fi xed bias of +5V. * Blocking capacitors are required at ports RFC and RF1, 2, 3, & 4. 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 2.0 2.4 dB Insertion Loss DC - 6.0 GHz 2.2 2.6 dB DC - 8.0 GHz 2.4 2.9 dB DC - 2.0 GHz 37 42 dB DC - 4.0 GHz 32 37 dB Isolation DC - 6.0 GHz 31 35 dB DC - 8.0 GHz 27 32 dB DC - 2.0 GHz 10 13 dB DC - 4.0 GHz 8 11 dB Return Loss On State DC - 6.0 GHz 7 10 dB DC - 8.0 GHz 6 9 dB Return Loss (RF1 - RF4) Off State 2.0 - 8.0 GHz 6 10 dB Input Power for 1 dB Compression 2.0 - 8.0 GHz 17 21 dBm Input Third Order Intercept 2.0 - 8.0 GHz 37 45 dBm (Two-Tone Input Power = +7 dBm Each Tone, 1MHz Tone Separation) Switching Characteristics 50 ns tRISE, tFALL (10/90% RF) DC - 8.0 GHz 120 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 - 208 Order On-line at www.hittite.com OBSOLETE SWITCHES - SMTHMC345LP3 / 345LP3E v04.0805 GaAs MMIC SP4T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz Insertion Loss vs. Temperature Isolation 0 0 -10 RF1 -1 RF2 RF3 -20 RF4 -2 -30 -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 25 RFC RF1-RF4 ON -5 22 RF1-RF4 OFF -10 19 -15 16 0.1dB Compression Point -20 13 1.0dB Compression Point -25 10 01 23 456 7 89 1 234 567 8 FREQUENCY (GHz) FREQUENCY (GHz) Input Third Order Intercept Point 60 55 50 45 40 RF1 RF2 RF3 35 RF4 30 1 234 567 8 FREQUENCY (GHz) * Isolation is recorded above insertion loss & measured at output of switch. 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 - 209 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