digital attenuator 50.0 db, 6 - bit, ttl driver, dc - 2.0 ghz rev. v10 at20 - 0106 1 1 m/a - com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: https://www.macom.com/support 1 features ? attenuation: 1 db steps to 50 db ? temperature stability: 0.18 db from C 40c to +85c typical ? low dc power consumption ? surface mount package ? integral ttl driver ? high intercept point ? low cost/high performance ? 50 ohm nominal impedance ? lead - free cr - 13 package ? 260c reflow compatible ? rohs* compliant description m/a - coms at20 - 0106 is a gaas fet 6 - bit digital attenuator with a 1 db minimum step size and 50 db total attenuation. this attenuator and integral ttl driver is in a ceramic 24 - lead surface mount pack- age. the at20 - 0106 is ideally suited for use where accuracy, fast switching, low power consumption and low intermodulation products are required. typi- cal applications include dynamic range setting in precision receiver circuits and other gain/ leveling control circuits. available with enhanced performance as fully hermetic version. environmen- tally screenable as p/n at - 106 - pin. ordering information part number package at20 - 0106 - pin bulk packaging at20 - 0106 - tr 1000 piece reel at20 - 0106 - tb sample test board note: reference application note m513 for reel size information. functional schematic pin configuration pin no. function pin no. function 1 gnd 13 rf2 2 gnd 14 gnd 3 gnd 15 gnd 4 c32 16 gnd 5 c16 17 gnd 6 vee ( - 5v to - 8v) 18 gnd 7 vcc (+5v) 19 gnd 8 c8 20 gnd 9 c4 21 gnd 10 c2 22 gnd 11 c1 23 gnd 12 gnd 24 rf1 the metal bottom of the case must be connected to rf and dc ground. * restrictions on hazardous substances, european union directive 2002/95/ec. p i n 1 g n d g n d g n d c 3 2 c 1 6 v e e ( - 5 v t o - 8 v ) v c c ( + 5 v ) c 8 g n d g n d g n d g n d g n d g n d r f 1 p i n 2 4 3 2 d b 1 6 d b 8 d b 4 d b 2 d b 1 d b g n d g n d g n d o r i e n t a t i o n m a r k g n d r f 2 p i n 1 3 c 4 c 2 c 1 p i n 1 2 g n d
digital attenuator 50.0 db, 6 - bit, ttl driver, dc - 2.0 ghz rev. v10 at20 - 0106 2 2 m/a - com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: https://www.macom.com/support 2 electrical specifications: t a = 25 c 1 parameter test conditions frequency units min typ max reference insertion loss dc - 0.5 ghz dc - 1.0 ghz dc - 2.0 ghz db db db 3.5 3.9 4.2 3.8 4.2 4.6 attenuation accuracy 2 any single bit any combination of bits (for attenuation to 26 db) any combination of bits (for attenuation 27 to 50 db) dc - 2.0 ghz dc - 2.0 ghz dc - 1.5 ghz db db db (0.3 +4% of atten. setting) (0.4 +4% of atten. setting) (0.5 +5% of atten. setting) vswr 0.05 - 0.10 ghz 0.101 - 2.0 ghz ratio ratio 2.0:1 1.8:1 trise, tfall 10% to 90% ns 50 ton, toff 50% control to 90/10% rf ns 150 transients in - band (peak - peak) mv 50 1 db compression input power input power 0.05 ghz 0.5 - 2.0 ghz dbm dbm +20 +28 input ip3 for two - tone input power up to +5 dbm 0.05 ghz 0.5 - 2.0 ghz dbm dbm +34 +46 input ip2 for two - tone input power up to +5 dbm 0.05 ghz 0.5 - 2.0 ghz dbm dbm +45 +79 vcc v 4.5 5.0 5.5 vee v - 8.0 - 5.0 icc vcc = 4.5 to 5.5v vctl = 0 to 0.8v, or vcc C 2.1v to vcc ma 6.0 iee vee = - 5.0 to - 8.0v ma 1.0 1. all specifications apply when operated with bias voltages of +5v for vcc and C 5.0v for vee. 2. this attenuator is guaranteed monotonic.
digital attenuator 50.0 db, 6 - bit, ttl driver, dc - 2.0 ghz rev. v10 at20 - 0106 3 3 m/a - com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: https://www.macom.com/support 3 recommended pcb configuration absolute maximum ratings 3,4 parameter absolute maximum max input power 0.05 ghz 0.5 - 2.0 ghz +27 dbm +34 dbm v cc - 0.5v v cc +7.0v v ee - 8.5v v ee +0.5v v cc - v ee - 0.5v v cc - v ee 14.5v vin 5 - 0.5v vin v cc + 0.5v operating temperature - 40c to +125c storage temperature - 65c to +150c 3. exceeding any one or combination of these limits may cause permanent damage to this device. 4. m/a - com does not recommend sustained operation near these survivability limits. 5. standard cmos ttl interface, latch - up will occur if logic signal is applied prior to power supply. handling procedures please observe the following precautions to avoid damage: static sensitivity gallium arsenide integrated circuits are sensitive to electrostatic discharge (esd) and can be damaged by static electricity. proper esd control techniques should be used when handling these devices. truth table (digital attenuator) control inputs c6 c5 c4 c3 c2 c1 attenuation 0 0 0 0 0 0 reference 0 0 0 0 0 1 1 db 0 0 0 0 1 0 2 db 0 0 0 1 0 0 4 db 0 0 1 0 0 0 8 db 0 1 0 0 0 0 16 db 1 0 0 0 0 0 32 db 1 1 1 1 1 1 63 db attenuation accuracy vs. frequency typical performance curves insertion loss vs. frequency 0 = ttl low; 1 = ttl high 0 1 2 3 4 5 0.0 0.5 1.0 1.5 2.0 fre que ncy (ghz ) insertion loss (db) + 85 c + 25 c - 55 c -0.60 -0.40 -0.20 0.00 0.20 0.40 0.60 0.0 0.5 1.0 1.5 2.0 f re que nc y ( g h z) deviation from nominal atten (db) 1 d b 2 d b 4 d b 8 d b
digital attenuator 50.0 db, 6 - bit, ttl driver, dc - 2.0 ghz rev. v10 at20 - 0106 4 4 m/a - com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: https://www.macom.com/support 4 rf1 vswr vs. frequency rf2 vswr vs. frequency typical performance curves attenuation accuracy vs. frequency lead - free , cr - 13 ceramic package ? ? reference application note m538 for lead - free solder reflow recommendations. -2.00 -1.00 0.00 1.00 2.00 0.0 0.5 1.0 1.5 2.0 fre que ncy (ghz ) deviation from nominal atten (db) 16 d b 3 2 d b 4 0 d b 50 d b 1 1.2 1.4 1.6 1.8 2 0.0 0.5 1.0 1.5 2.0 fre que ncy (ghz ) vswr 1 d b 4 d b 8 & 16 d b 3 2 d b r ef lo ss & 2 d b 1 1.2 1.4 1.6 1.8 2 0.0 0.5 1.0 1.5 2.0 fre que ncy (ghz ) vswr 1 d b 2 d b 8 d b 16 d b r ef lo ss & 4 d b 3 2 d b
digital attenuator 50.0 db, 6 - bit, ttl driver, dc - 2.0 ghz rev. v10 at20 - 0106 5 5 m/a - com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: https://www.macom.com/support 5 m/a - com technology solutions inc. all rights reserved. information in this document is provided in connection with m/a - com technology solutions inc ("macom") products. these materials are provided by macom as a service to its customers and may be used for informational purposes only. except as provided in macom's terms and conditions of sale for such products or in any separate agreement related to this document, macom assumes no liability whatsoever. macom assumes no responsibility for errors or omissions in these materials. macom may make changes to specifications and product descriptions at any time, without notice. macom makes no commitment to update the information and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to its specifications and product descriptions. no license, express or implied, by estoppels or otherwise, to any intellectual property rights is granted by this document. these materials are provided "as is" without warranty of any kind, either express or implied, relating to sale and/or use of macom products including liability or warranties relating to fitness for a particular purpose, consequential or incidental damages, merchantability, or infringement of any patent, copyright or other intellectual property right. macom further does not warrant the accuracy or completeness of the information, text, graphics or other items contained within these materials. macom shall not be liable for any special, indirect, incidental, or consequential damages, including without limitation, lost revenues or lost profits, which may result from the use of these materials. macom products are not intended for use in medical, lifesaving or life sustaining applications. macom customers using or selling macom products for use in such applications do so at their own risk and agree to fully indemnify macom for any damages resulting from such improper use or sale.
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