for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com power detectors - s m t 11 11 - 1 t he hm c 948lp3 e logarithmic detector converts r f signals at its input, to a proportional d c voltage at its output. t he hm c 948lp3 e employs successive compression topology which delivers high dynamic range over a wide input frequency range. as the input power is increased, successive amplifers move into saturation one by one creating an approximation of the logarithm function. t he output of a series of square law detectors is summed, converted into the voltage domain and buffered to drive the l o g o u t output. t he hm c 948lp3 e provides a nominal logarithmic slope of +14.2 mv/db and an intercept of -111 dbm at 23 ghz. ideal as a log detector for high volume micro- wave radio and v s a t applications, the hm c 948lp3 e is housed in a compact 3x3 mm r oh s compliant s m t plastic package. general description HMC948LP3E features functional diagram w ide input bandwidth: 1 to 23 ghz w ide dynamic r ange: 54 db up to 23 ghz s ingle positive s upply: +3.3v e xcellent s tability o ver t emperature fast r ise / fall t ime: 5 / 7 ns 16 lead 3x3 mm s m t package: 9 mm2 typical applications t he hm c 948lp3 e is ideal for: ? point-to-point microwave r adio ? v s a t ? w ideband power monitoring ? r eceiver s ignal s trength indication ( rss i) ? t est & measurement electrical specifcations, t a = +25 c vcc = +3.3v parameter t yp. t yp. t yp. t yp. t yp. t yp. t yp. units input frequency 1 5 10 14 18 20 23 ghz 3 db dynamic r ange 53 54 54 55 55 55 55 db 3 db dynamic r ange c enter -23 -25 -24 -22 -20 -15 -15 dbm log e rror o ver t emperature (-40 to +85) 1 1 1 1.5 1.5 1.5 1.5 db o utput intercept -104 -107 -109 -112 -113 -108 -111 dbm o utput s lope 16.8 16.7 15.9 15.2 14.6 14.4 14.2 mv/db 54 db, logarithmic detector, 1 - 23 ghz v00.0910
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com p ower d etectors - s m t 11 11 - 2 electrical specifcations, (continued) parameter c onditions min. t yp. max. units logout interface o utput voltage r ange 0.9 1.8 v o utput r ise t ime [1] / fall t ime [2] f = 10 ghz 5 / 7 ns power supply (vcc) o perating voltage r ange 3.15 3.3 3.45 v s upply c urrent in normal mode 91 ma [1] 0 dbm input pulsed; measured from 10% to 90% [2] 0 dbm input pulsed; measured from 90% to 10% log out & error vs. input power, fin = 5 ghz log out & error vs. input power, fin = 1 ghz unless otherwise noted: vcc = +3.3v, t a = +25 c HMC948LP3E v00.0910 54 db, logarithmic detector, 1 - 23 ghz log out & error vs. input power, fin = 14 ghz log out & error vs. input power, fin = 10 ghz 0.5 1 1.5 2 -3 -2 -1 0 1 2 3 -60 -50 -40 -30 -20 -10 0 10 err +25 c err +85 c err -40 c ideal log out +25 c log out +85 c log out -40 c log out (v) error (db) input power (dbm) 0.5 1 1.5 2 -3 -2 -1 0 1 2 3 -60 -50 -40 -30 -20 -10 0 10 err +25 c err +85 c err -40 c ideal log out +25 c log out +85 c log out -40 c log out (v) error (db) input power (dbm) 0.5 1 1.5 2 -3 -2 -1 0 1 2 3 -60 -50 -40 -30 -20 -10 0 10 err +25 c err +85 c err -40 c ideal log out +25 c log out +85 c log out -40 c log out (v) error (db) input power (dbm) 0.5 1 1.5 2 -3 -2 -1 0 1 2 3 -60 -50 -40 -30 -20 -10 0 10 err +25 c err +85 c err -40 c ideal log out +25 c log out +85 c log out -40 c log out (v) error (db) input power (dbm)
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com power detectors - s m t 11 11 - 3 log out & error vs. input power, fin = 18 ghz unless otherwise noted: vcc = +3.3v, t a = +25 c log out & error vs. input power, fin = 20 ghz log out & error vs. input power, fin = 23 ghz log out vs. frequency HMC948LP3E v00.0910 54 db, logarithmic detector, 1 - 23 ghz 0.5 1 1.5 2 -3 -2 -1 0 1 2 3 -60 -50 -40 -30 -20 -10 0 10 err +25 c err +85 c err -40 c ideal log out +25 c log out +85 c log out -40 c log out (v) error (db) input power (dbm) 0.5 1 1.5 2 -3 -2 -1 0 1 2 3 -60 -50 -40 -30 -20 -10 0 10 err +25 c err +85 c err -40 c ideal log out +25 c log out +85 c log out -40 c log out (v) error (db) input power (dbm) 0.5 1 1.5 2 -3 -2 -1 0 1 2 3 -60 -50 -40 -30 -20 -10 0 10 err +25 c err +85 c err -40 c ideal log out +25 c log out +85 c log out -40 c log out (v) error (db) input power (dbm) 0.5 0.75 1 1.25 1.5 1.75 2 -60 -50 -40 -30 -20 -10 0 10 1 ghz 5 ghz 10 ghz 14 ghz 18 ghz 20 ghz 23 ghz input power (dbm) log out (v)
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com p ower d etectors - s m t 11 11 - 4 unless otherwise noted: vcc = +3.3v, t a = +25 c rise time for various frequencies @ 0 dbm input return loss HMC948LP3E v00.0910 54 db, logarithmic detector, 1 - 23 ghz fall time for various frequencies @ 0 dbm 0.8 1 1.2 1.4 1.6 1.8 0 20 40 60 80 100 2 ghz 10 ghz 18 ghz time (ns) log out (v) 0.8 1 1.2 1.4 1.6 1.8 0 20 40 60 80 100 2 ghz 10 ghz 18 ghz time (ns) log out (v) -20 -15 -10 -5 0 0 5 10 15 20 25 30 +25 c +85 c -40 c frequency (ghz) return loss (db)
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com power detectors - s m t 11 11 - 5 absolute maximum ratings e l ectrost a t ic se n s i t iv e de vi ce o b ser v e handling p rec au t i o n s vcc +3.6v r f input power +15 dbm junction t emperature 125 c c ontinuous pdiss ( t = 85 c ) (derate 11.62 m w / c above 85 c ) 0.46 w t hermal r esistance ( r th ) (junction to ground paddle) 86.09 c / w s torage t emperature -65 to +150 c o perating t emperature -40 to +85 c es d s ensitivity (hbm) c lass 1a HMC948LP3E v00.0910 54 db, logarithmic detector, 1 - 23 ghz outline drawing part number package body material lead finish m s l r ating package marking [1] hm c 948lp3 e r oh s -compliant low s tress injection molded plastic 100% matte s n m s l1 [2] 948 xxx [1] 4-digit lot number xxxx [2] max peak refow temperature of 260 c package information n otes : 1. l e adf r am e ma ter ial: co pp er all o y 2. dim e n s i o n s a re in in c h es [millim eters ]. 3. l e ad s pa c ing to l er an ce i s n o n- c umula t iv e 4. pad bu rr l e ng t h s hall b e 0.15mm maximum. pad bu rr h e igh t s hall b e 0.05mm maximum. 5. pa c kag e w a r p s hall n ot e x cee d 0.05mm. 6. all g ro und l e ad s and g ro und paddl e mu st b e so ld ere d to p c b r f g ro und. 7. re f er to hm c appli c a t i o n n ote f or s ugg este d p c b land pa tter n.
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com p ower d etectors - s m t 11 11 - 6 HMC948LP3E v00.0910 54 db, logarithmic detector, 1 - 23 ghz pin number function description interface s chematic 1, 4, 5, 8, 9, 10, 12 n/ c no connection necessary. t hese pins may be connected to r f/d c ground without affecting performance. 2 r fin r f input pin. 3, 6, 7 gnd t hese pins and the exposed package bottom must be connected to a high quality r f/d c ground. 11 l o g o u t log out. t hese pins should be connected to each other through a 0 ohm resistor. s ee application circuit. 13 - 16 vcc bias s upply. c onnect supply voltage to these pins with appropriate fltering. pin descriptions
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com power detectors - s m t 11 11 - 7 HMC948LP3E v00.0910 54 db, logarithmic detector, 1 - 23 ghz application & evaluation pcb schematic
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com p ower d etectors - s m t 11 11 - 8 HMC948LP3E v00.0910 54 db, logarithmic detector, 1 - 23 ghz evaluation pcb t he circuit board used in the application should use r f circuit design techniques. s ignal lines should have 50 ohm impedance while the pckage ground leads and exposed paddle should be con - nected directly to the ground plane similar to that shown. a sufficient number of via holes should be used to connect the top and bottom ground planes. t he evaluation circuit board shown is available from hittite upon request. list of materials for evaluation pcb 132032 [1] item description j1 k- t ype c onnector j2 s ma c onnector j3, j4 d c pin c 1 5 pf c apacitor, 0402 pkg. c 2, c 3 10 nf c apacitor, 0402 pkg. c 4 4.7 f t antalum c apacitor, c a se a pkg. u1 hm c 948lp3 e log detector p c b [2] 600-00008-00 e valuation p c b [1] r eference this number when ordering complete evaluation p c b [2] c ircuit board material: r ogers 4350 or arlon 25 f r
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