HMC110 MICROWAVE CORPORATION GaAs MMIC 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz FEBRUARY 2001 Features General Description BANDWIDTH: DC-10 GHZ The HMC110 chip is a 5-bit digital attenuator with a 31 dB range in 1 dB steps. Each bit is activated by applying 0V to port A and disabled with -5 V to port A. Port B (as applicable) is biased with the complement of port A. Applications include military ECM and communications as well as commercial microwave radios. See SMT packaged versions; HMC110G16 (hermetic) and HMC110C14 (non hermetic). LOW INSERTION LOSS : 31 dB ATTENUATION RANGE FAST SWITCHING: 6 nS DIE ATTENUATORS 2 <6 dB Guaranteed Performance With 0/-5V Control, -55 to +85 deg C Parameter Freq. Reference Insertion Loss Attenuation Range Return Loss Attenuation Accuracy 1 - 7 dB States 8 - 15 dB States 16 - 23 dB States 24 - 31 dB States Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) Input Power for 0.2 dB Min Atten: Comp. Max Atten: Input Third Order Intercept - 5 GHz - 10 GHz - 10 GHz - 2 GHz - 10 GHz DC DC DC DC - 10 - 10 - 10 - 10 GHz GHz GHz GHz DC - 10 GHz Typ. Max. Units 6.0 7.0 27 12 8 5.2 6.2 31 15 10 dB dB dB dB dB +/- 0.5 +/- 0.6 +/- 0.6 +/- 0.6 dB dB dB dB +/- 5% of setting max. +/- 5% of setting max. +/- 8% of setting max. +/- 10% of setting max. dB dB dB dB 3 6 ns ns 0.5 - 10 GHz +22 +5 dBm dBm Min Atten: 0.5 - 10 GHz Max Atten: +44 +32 dBm dBm 12 Elizabeth Drive, Chelmsford, MA 01824 2-2 DC DC DC DC DC Min. Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com HMC110 MICROWAVE CORPORATION HMC110 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz FEBRUARY 2001 Insertion Loss Relative Attenuation -4 -6 -8 -10 0 2 4 6 8 2 ATTENUATORS -2 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 -32 -34 -36 0 10 2 FREQUENCY (GHz) 8 10 Return Loss Relative Phase 90 0 70 31 dB RETURN LOSS (dB) RELATIVE PHASE (DEG) 4 6 FREQUENCY (GHz) DIE RELATIVE ATTENUATION (dB) INSERTION LOSS (dB) 0 50 16 dB 30 8 dB 10 1 dB, 2 dB, 4 dB -10 0 2 4 6 8 -20 -30 10 0 2 4 6 8 10 FREQUENCY (GHz) FREQUENCY (GHz) 12 Elizabeth Drive, Chelmsford, MA 01824 -10 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com 2-3 HMC110 MICROWAVE CORPORATION HMC110 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz FEBRUARY 2001 Schematic A3 A4 B4 A5 B5 4dB 1dB 2dB 8dB 16dB GND GND GND GND GND GND GND GND GND GND RF2 ATTENUATORS DIE A2 RF1 2 A1 B1 HMC110 Absolute Maximum Ratings Truth Table Control Voltage Range +0.5 to -8.5 Vdc Storage Temperature -65 to +150 deg C Operating Temperature RF Input Power (0.5 - 4 GHz) Insertion Loss State Any Attenuation State -55 to +125 deg C 4 dB Bit 1dB 2dB +27 dBm +13 dBm A1 B1 A2 A3 A4 B4 A5 B5 Hi Lo Hi Hi Hi Lo Hi Lo Ref Hi Lo Lo Hi Hi Lo Hi Lo 1dB Hi Lo Hi Lo Hi Lo Hi Lo 2dB Lo Hi Hi Hi Hi Lo Hi Lo 4dB Hi Lo Hi Hi Lo Hi Hi Lo 8dB Hi Lo Hi Hi Hi Lo Lo Hi 16dB Control Input Control Voltages State Bias Condition Low 0 to -0.2V@20uA Max High -3V@50uA Typ to -8V@500uA Max 8dB Bit 16dB Bit Att Set Any combination of above states will provide an attenuation approximately equal to the sum of the bits selected. 12 Elizabeth Drive, Chelmsford, MA 01824 2-4 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com HMC110 MICROWAVE CORPORATION HMC110 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz FEBRUARY 2001 Die Outline ( See page 8 - 2 and 8 - 3 DIE HANDLING NOTES) 1.676 (0.066) 0.178 (0.007) 0.127 (0.005) 9 equal spaces @ 0.152 (0.006) each 0.102 (0.004) 2 A1 RF1 B1 A2 A3 A4 4306 B4 A5 B5 A6 B6 RF2 ATTENUATORS 0.279 (0.011) 0.864 (0.034) 0.076 (0.003) DIE 0.102 (0.004) ALL DIMENSIONS IN MILLIMETERS (INCHES) ALL TOLERANCES ARE ±0.025 (0.001) DIE THICKNESS IS 0.203 (0.008), BACKSIDE IS NOT METALLIZED BOND PADS ARE 0.100 (0.004) SQUARE ALL UNLABELED BOND PADS ARE GROUND. BOND PAD METALLIZATION: GOLD BACKSIDE METALLIZATION : NONE Suggested Driver Circuit 100Ω * Vz=5.1V Izt=50uA A COMPENSATED 100pF * DEVICES CD4689 TTL OR CMOS VCC VCC GND GND GaAs ATTENUATOR CONTROL 100Ω * B 10K 74HCT04 (TTL) 74HC04 (CMOS) 100pF * -5 VDC Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current. * Recommended values to suppress unwanted RF signals at A/B control lines. You may adjust for switching speed considerations. 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com 2-5