analog devices welcomes hittite microwave corporation www.analog.com www.hittite.com preliminary
this page intentionally left blank preliminary
attenuators - digital - smt 1 1 0.5 db lsb gaas mmic 6-bit digital positive control attenuator, 2.2 - 8.0 ghz functional diagram electrical specifi cations, t a = +25 c, with vdd = +5v & vctl = 0/+5v (unless otherwise noted) typical applications the hmc425alp3 / hmc425ALP3E is ideal for: ? wlan & point-to-multi-point ? fiber optics & broadband telecom ? microwave radio & vsat ? military 0.5 db lsb steps to 31.5 db single control line per bit 0.5 db typical bit error single +5v supply 3x3 mm smt package the hmc425 a lp3 & h mc 425a lp3e are broad- b and 6 -bit gaas ic digital attenuators in l o w cost leadless s u rface mount p a c ka ges. covering 2.2 to 8. 0 g h z , the insertion loss is less then 3. 8 db t ypical. the attenuator bit values are 0.5 (lsb), 1, 2, 4, 8 , a nd 1 6 db for a total attenuatio n o f 3 1 . 5 d b. attenuation accuracy is e x cellent at 0.5 db t y pical s t e p e rr or with an ii p3 of +40 db m. s i x c o n t rol v o l t age i nputs, toggled between 0 and +3 to +5v, a re used to select e a c h attenuation state. a single vdd b i a s of +3 to +5v is required. parameter frequency (ghz) min. typ. max. units insertion loss 2.2 - 6.0 ghz 6.0 - 8.0 ghz 3.5 3.8 3.8 4.3 db db attenuation range 2.2 - 8.0 ghz 31.5 db return loss (rf1 & rf2, all atten. states) 2.2 - 8.0 ghz 15 db attenuation accuracy: (referenced to insertion loss) all states 2.2 - 8.0 ghz 0.5 + 5% of atten. setting max. db input power for 0.1 db compression vdd = 5v vdd = 3v 2.2 - 8.0 ghz 22 19 dbm dbm input third order intercept point (two-tone input power= 0 dbm each tone) ref - 16.0 db states 16.5 - 31.5 db states 2.2 - 8.0 ghz 45 35 dbm dbm switching characteristics trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) 2.2 - 8.0 ghz 160 180 ns ns hmc425alp3 / 425ALP3E v00.1115 features general description information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. for price, delivery, and to place orders: analog devices, inc., one technology way, p.o. box 9106, norwood, ma 02062-9106 phone: 781-329-4700 order online at www.analog.com application support: phone: 1-800-analog-d preliminary
attenuators - digital - smt 2 2 absolute maximum ratings outline drawing control voltage (v1 to v6) vdd +0.5 vdc bias voltage (vdd) +7.0 vdc staorage temperature -65 to +150 c operating temperature -40 to +85 c rf input power (2.4 - 8.0 ghz) +30 dbm esd sensitivity (hbm) class 1a electrostatic sensitive device observe handling precautions notes: 1. leadframe material: copper alloy 2. dimensions are in inches [millimeters] 3. lead spacing tolerance is non-cumulative 4. pad burr length shall be 0.15mm maximum. pad burr height shall be 0.05mm maximum. 5. package warp shall not exceed 0.05mm. 6. all ground leads and ground paddle must be soldered to pcb rf ground. 7. refer to hittite application note for suggested land pattern. hmc425alp3 / 425ALP3E v00.1115 0.5 db lsb gaas mmic 6-bit digital positive control attenuator, 2.2 - 8.0 ghz for price, delivery, and to place o rd ers: analog devices, inc., one techn ol ogy way, p.o. box 9106, norwood, ma 02062-9106 pho ne: 781-329-4700 o rd er on line at ww w.anal og .com application support: p ho ne: 1-800-analog-d truth table control voltage input attenua- tion state rf1 - rf2 v1 16 db v2 8 db v3 4 db v4 2 db v5 1 db v6 0.5 db high high high high high high reference i.l. high high high high high low 0.5 db high high high high low high 1 db high high high low high high 2 db high high low high high high 4 db high low high high high high 8 db low high high high high high 16 db low low low low low low 31.5 db any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. preliminary
|
