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| MICROWAVE CORPORATION HMC110 General Description 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). GaAs MMIC 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz FEBRUARY 2001 Features BANDWIDTH: DC-10 GHZ LOW INSERTION LOSS : <6 dB 2 ATTENUATORS DIE 31 dB ATTENUATION RANGE FAST SWITCHING: 6 nS Guaranteed Performance With 0/-5V Control, -55 to +85 deg C Parameter 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 DC DC DC DC DC DC DC DC DC Freq. - 5 GHz - 10 GHz - 10 GHz - 2 GHz - 10 GHz - 10 - 10 - 10 - 10 GHz GHz GHz GHz Min. Typ. 5.2 6.2 31 15 10 dB dB dB dB Max. 6.0 7.0 Units dB dB dB dB dB dB dB dB dB ns ns dBm dBm dBm dBm Web Site: www.hittite.com 27 12 8 +/- 0.5 +/- 0.6 +/- 0.6 +/- 0.6 +/- 5% of setting max. +/- 5% of setting max. +/- 8% of setting max. +/- 10% of setting max. 3 6 +22 +5 +44 +32 DC - 10 GHz 0.5 - 10 GHz Min Atten: 0.5 - 10 GHz Max Atten: Phone: 978-250-3343 12 Elizabeth Drive, Chelmsford, MA 01824 Fax: 978-250-3373 2-2 HMC110 MICROWAVE CORPORATION HMC110 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz FEBRUARY 2001 Insertion Loss 0 INSERTION LOSS (dB) Relative Attenuation 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 -32 -34 -36 -2 -4 -6 -8 -10 0 2 4 6 8 10 FREQUENCY (GHz) RELATIVE ATTENUATION (dB) 2 ATTENUATORS 0 2 Relative Phase 90 Return Loss 0 31 dB RELATIVE PHASE (DEG) 70 50 30 RETURN LOSS (dB) -10 16 dB 8 dB -20 10 -10 0 2 4 6 FREQUENCY (GHz) 1 dB, 2 dB, 4 dB 8 10 -30 0 2 4 6 8 10 FREQUENCY (GHz) 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com 2-3 DIE 4 6 FREQUENCY (GHz) 8 10 HMC110 MICROWAVE CORPORATION HMC110 FEBRUARY 2001 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz Schematic A1 B1 A2 A3 A4 B4 A5 B5 RF1 ATTENUATORS 4dB 1dB 2dB 8dB 16dB HMC110 GND GND GND GND GND GND GND GND GND GND DIE Absolute Maximum Ratings Control Voltage Range Storage Temperature Operating Temperature RF Input Power (0.5 - 4 GHz) Insertion Loss State Any Attenuation State +0.5 to -8.5 Vdc -65 to +150 deg C -55 to +125 deg C +27 dBm +13 dBm Truth Table Control Input 4 dB Bit A1 Hi B1 Lo Lo Lo Hi Lo Lo 1dB A2 Hi Lo Hi Hi Hi Hi 2dB A3 Hi Hi Lo Hi Hi Hi 8dB Bit A4 Hi Hi Hi Hi Lo Hi B4 Lo Lo Lo Lo Hi Lo 16dB Bit A5 Hi Hi Hi Hi Hi Lo B5 Lo Lo Lo Lo Lo Hi Ref 1dB 2dB 4dB 8dB 16dB Att Set Control Voltages State Low High Bias Condition 0 to -0.2V@20uA Max -3V@50uA Typ to -8V@500uA Max Hi Hi Lo Hi Hi Any combination of above states will provide an attenuation approximately equal to the sum of the bits selected. 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com 2-4 RF2 2 HMC110 MICROWAVE CORPORATION HMC110 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz FEBRUARY 2001 Die Outline ( See page 8 - 2 0.178 (0.007) 0.102 (0.004) and 8 - 3 DIE HANDLING NOTES) 1.676 (0.066) 0.127 (0.005) 9 equal spaces @ 0.152 (0.006) each 2 0.864 (0.034) 0.102 (0.004) 0.076 (0.003) 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 Vz=5.1V Izt=50uA COMPENSATED DEVICES CD4689 TTL OR CMOS VCC GND VCC GND 74HCT04 (TTL) 74HC04 (CMOS) 100 * 100pF * 100 * A GaAs ATTENUATOR CONTROL 10K B 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 DIE ATTENUATORS 0.279 (0.011) A1 RF1 B1 A2 A3 A4 4306 B4 A5 B5 A6 B6 RF2 |
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