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| MICROWAVE CORPORATION HMC110C14 General Description The HMC110C14 is a 5-bit digital attenuator in a non-hermetic 14 lead surface mount package. Each bit is activated by applying a 0V control, and then disabled by applying -5 V control to the specified control pin. The five primary attenuation states can be activated independently, or collectively for a maximum combined attenuation level of 31 dB. See the nonhermetic DC-2 GHz HMC110G16. The HMC110C14 may be used for 2.4 GHz ISM, VSAT, 5.2 GHz UNII, 5.8 GHz ISM, or microwave radio applications. GaAs MMIC SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz SEPTEMBER 1999 Features BANDWIDTH: DC - 6 GHz BIT LEVELS: 1, 2, 4, 8, 16 dB 2 Attenuators 31 dB ATTENUATION RANGE Guaranteed Performance With 0/-5V Control, -55 to +85 deg C Parameter Inser tion Loss Attenuation Range Return Loss (Input) Return Loss (Output) Attenuation Accuracy: 1 - 7 dB States 8 - 15 dB States 16 - 23 dB States 24 - 31 dB States Switching Characteristics tRISE, tFALL (10/90%) tON, tOFF (50% CTL to 10/90% RF) Input Power for 0.2 dB Comp Min Atten: Max Atten: Min Atten: Max Atten: Freq. DC-6 GHz DC-6 GHz DC-6 GHz DC-6 GHz DC-6 GHz DC-6 GHz DC-6 GHz DC-6 GHz DC-6 GHz 27 8 10 + / - 0.5 + / - 0.6 + / - 0.6 + / - 0.6 dB dB dB dB Min. Typ. 5.5 31 12 14 +/- 5% of Setting Max. +/- 5% of Setting Max. +/- 8% of Setting Max. +/- 10% of Setting Max. 3 6 +22 +5 +44 +32 Fax: 978-250-3373 Max. 6.5 Units dB dB dB dB dB dB dB dB ns ns dB m dB m dB m dB m 0.5 - 6 Input Third Order Intercept Point 0.5 - 6 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Web Site: www.hittite.com 2 - 10 MICROWAVE CORPORATION HMC110C14 SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz SEPTEMBER 1999 Insertion Loss 0 -2 Relative Attenuation 0 RELATIVE ATTENUATION (dB) -5 -10 -15 16 dB -20 -25 31 dB -30 -35 4 dB 8 dB 1 dB 2 dB INSERTION LOSS (dB) -4 2 Attenuators -6 -8 -10 0 1 2 3 4 5 6 7 8 FREQUENCY (GHz) 0 1 2 3 4 5 6 7 8 FREQUENCY (GHz) Relative Phase 40 30 31 dB Input Return Loss 0 INPUT RETURN LOSS (dB) -5 31 dB -10 16 dB -15 -20 4 dB -25 8 dB -30 1 dB -35 7 8 0 1 2 3 4 5 6 7 8 REF 2 dB RELATIVE PHASE (deg.) 20 16 dB 10 8 dB 0 1,2,4 dB -10 0 1 2 3 4 5 6 FREQUENCY (GHz) FREQUENCY (GHz) Output Return Loss 0 OUTPUT RETURN LOSS (dB) -5 16, 31 dB -10 4 dB -15 8 dB -20 REF -25 1 dB -30 -35 0 1 2 3 4 5 6 7 8 FREQUENCY (GHz) 2 dB 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com 2 - 11 MICROWAVE CORPORATION HMC110C14 SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz SEPTEMBER 1999 Schematic A1 (8) B1 (7) A2 (6) A3 (5) A4 (4) B4 (3) A5 (2) B5 (1) 2 RF1 (9) RF2 (13) Attenuators 4dB 1dB 2dB 8dB 16dB HMC110 GND GND GND GND GND Pin # = ( ); Pins 10 - 12, 14 and package bottom are GND. 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 - 12 MICROWAVE CORPORATION HMC110C14 SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz SEPTEMBER 1999 Outline 0.004 COPLANARITY MAX (0.10) 0.350 PIN 14 0.105 MAX (2.66) G ND RF 2 G ND G ND G ND A1 CHAMFERED LEAD RF 1 0/7 Deg. 0.285/0.295 (7.24/7.49) HMC 110C14 B5 A5 B4 A4 A3 A2 B1 RF GND PLANE COPLANAR WITH LEADS 0.157/0.163 (3.99/4.14) 0.020/0.040 (0.51/1.02) 2 Attenuators PIN 1 0.007/0.009 TYP (0.18/0.23) 0.330 1. 0.137/0.143 (3.48/3.63) 2. 3. RF GND PLANE COPLANAR WITH LEADS 0.050 TYP (1.27) 0.016 +/- 0.003 TYP (0.51 +/- 0.08) 4. 5. MATERIAL: A) PACKAGE BODY & COVER : WHITE ALUMINA (92%) B) LEADS & PACKAGE BOTTOM: COPPER PLATING : ELECTROLYTIC GOLD 100 - 200 MICRONICHES OVER ELECTROLYTIC NICKEL 100 TO 200 MICROINCHES. DIMENSIONS ARE IN INCHES (MILLIMETERS). UNLESS OTHERWISE SPECIFIED ALL TOL. ARE 0.005(0.13). THE PACKAGE IS RF GROUND AND MUST BE SOLDERED TO THE PCB RF GROUND. PACKAGE LENGTH AND WIDTH DIMENSIONS SHOWN DO NOT INCLUDE LID SEAL PROTRUSION. ALLOWABLE PROTRUSION SHALL BE 0.005 (0.127MM) PER SIDE. 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 - 13 |
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