HMC110C14 MICROWAVE CORPORATION GaAs MMIC SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz SEPTEMBER 1999 Features General Description BANDWIDTH: DC - 6 GHz 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. BIT LEVELS: 1, 2, 4, 8, 16 dB 31 dB ATTENUATION RANGE Attenuators 2 Guaranteed Performance With 0/-5V Control, -55 to +85 deg C Parameter Freq. Min. Typ. Max. Units 5.5 6.5 dB Inser tion Loss DC-6 GHz Attenuation Range DC-6 GHz 27 31 dB Return Loss (Input) DC-6 GHz 8 12 dB Return Loss (Output) DC-6 GHz 10 14 dB Attenuation Accuracy: 1 - 7 dB States 8 - 15 dB States 16 - 23 dB States 24 - 31 dB States DC-6 GHz DC-6 GHz DC-6 GHz DC-6 GHz + / - 0.5 + / - 0.6 + / - 0.6 + / - 0.6 Switching Characteristics tRISE, tFALL (10/90%) tON, tOFF (50% CTL to 10/90% RF) dB dB dB dB +/- 5% of Setting Max. +/- 5% of Setting Max. +/- 8% of Setting Max. +/- 10% of Setting Max. dB dB dB dB DC-6 GHz 3 6 ns ns Input Power for 0.2 dB Comp Min Atten: Max Atten: 0.5 - 6 +22 + 5 dB m dB m Input Third Order Intercept Point Min Atten: Max Atten: 0.5 - 6 +44 +32 dB m dB m 12 Elizabeth Drive, Chelmsford, MA 01824 2 - 10 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com MICROWAVE CORPORATION HMC110C14 SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz SEPTEMBER 1999 Insertion Loss Relative Attenuation 0 -2 -4 -6 -8 -5 4 dB -10 1 dB 8 dB -15 2 16 dB -20 -25 31 dB -30 -35 -10 0 1 2 3 4 5 6 7 0 8 1 2 3 4 5 6 7 8 7 8 FREQUENCY (GHz) FREQUENCY (GHz) Input Return Loss Relative Phase 0 40 31 dB 30 INPUT RETURN LOSS (dB) RELATIVE PHASE (deg.) 2 dB 20 16 dB 10 8 dB 0 -5 2 dB 31 dB -10 16 dB -15 -20 REF 4 dB -25 8 dB -30 1,2,4 dB 1 dB -35 -10 0 1 2 3 4 5 6 7 0 8 1 2 3 4 5 6 FREQUENCY (GHz) FREQUENCY (GHz) Output Return Loss OUTPUT RETURN LOSS (dB) 0 -5 16, 31 dB -10 4 dB -15 8 dB -20 REF -25 1 dB 2 dB -30 -35 0 1 2 3 4 5 6 7 8 FREQUENCY (GHz) 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com 2 - 11 Attenuators RELATIVE ATTENUATION (dB) INSERTION LOSS (dB) 0 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) Attenuators 1dB 4dB 2dB 8dB RF2 (13) RF1 (9) 2 16dB HMC110 GND GND GND GND GND Pin # = ( ); Pins 10 - 12, 14 and package bottom are GND. 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 - 12 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com MICROWAVE CORPORATION HMC110C14 SMT 5 - BIT DIGITAL ATTENUATOR DC - 6 GHz SEPTEMBER 1999 Outline 0.004 COPLANARITY MAX (0.10) 0.350 0.105 MAX (2.66) A1 RF 1 G ND G ND G ND G ND RF 2 PIN 14 CHAMFERED LEAD HMC 110C14 0.285/0.295 (7.24/7.49) 0/7 Deg. RF GND PLANE COPLANAR WITH LEADS 2 0.157/0.163 (3.99/4.14) B1 A2 A3 Attenuators PIN 1 A4 B4 A5 B5 0.020/0.040 (0.51/1.02) 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 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 - 13