frequency dividers & detectors - smt 6 6 - 90 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com general description features functional diagram the hmc438ms8g & hmc438MS8GE are low noise divide-by-5 static dividers utilizing ingap gaas hbt technology in low cost 8 lead surface mount plas- tic packages. this device operates from dc (with a square wave input) to 7.0 ghz input frequency from a single +5.0v dc supply. the low additive ssb phase noise of -153 dbc/hz at 100 khz offset helps the user maintain good system noise performance. ssb phase noise: -153 dbc/hz @100khz wide bandwidth output power: -1 dbm single dc supply: +5v @ 80 ma ms8g smt package electrical specifications, t a = +25 c, 50 ohm system, vcc= 5v typical applications prescaler for dc to c band pll applications: ? unii, point-to-point & vsat radios ? 802.11a & hiperlan wlan ? fiber optic ? cellular / 3g infrastructure 1. divider will operate down to dc for square-wave input signal. parameter conditions min. typ. max. units maximum input frequency 7.0 7.5 ghz minimum input frequency sine wave input [1] 0.1 ghz input power range fin= 1 to 5 ghz -12 -15 +12 dbm fin= 5 to 6 ghz -12 -15 +10 dbm fin= 6 to 7 ghz -10 -15 +5 dbm output power -4 -1 dbm reverse leakage both rf outputs terminated -50 dbm ssb phase noise (100 khz offset) pin= 0 dbm, fin= 6 ghz -153 dbc/hz output transition time pin= 0 dbm, fout= 882 mhz 100 ps supply current (icc) 80 ma hmc438ms8g / 438MS8GE smt gaas hbt mmic divide-by-5, dc - 7.0 ghz v03.0705
frequency dividers & detectors - smt 6 6 - 91 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com -20 -15 -10 -5 0 5 10 15 20 0123456789 input power (dbm) input frequency (ghz) ssb phase noise performance, pin= 0 dbm, fin= 6ghz, t= 25 c input sensitivity window, t= 25 c input sensitivity window vs. temperature output power vs. temperature recommended operating window reverse leakage, pin= 0 dbm, t= 25 c output harmonic content, pin= 0 dbm, t= 25 c -20 -15 -10 -5 0 5 10 15 20 0123456789 min pin +25 c max pin +25 c min pin +85 c max pin +85 c min pin -40 c max pin -40 c input power (dbm) input frequency (ghz) -170 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 2 10 3 10 4 10 5 10 6 10 7 ssb phase noise (dbc/hz) offset frequency (hz) -70 -60 -50 -40 -30 -20 -10 0 0123456789 both output ports terminated one output port terminated output level (dbm) input frequency (ghz) -50 -40 -30 -20 -10 0 0123456789 pfeedthru 2nd harmonic output level (dbm) input frequency (ghz) -6 -5 -4 -3 -2 -1 0 1 2 3 4 0123456789 +25 c +85 c -40 c output power (dbm) input frequency (ghz) hmc438ms8g / 438MS8GE smt gaas hbt mmic divide-by-5, dc - 7.0 ghz v03.0705
frequency dividers & detectors - smt 6 6 - 92 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com output voltage waveform, pin= 0 dbm, fout= 882 mhz, t= 25 c absolute maximum ratings outline drawing typical supply current vs. vcc note: divider will operate over full voltage range shown above rf input (vcc= +5v) +13 dbm vcc +5.5v maximum channel temperature 135 c continuous pdiss (t=85 c) (derate 11.3mw/c above 92 c) 485mw storage temperature -65 to +150 c operating temperature -40 to +85 c vcc (v) icc (ma) 4.75 75 5.0 80 5.25 87 dc blocking capacitors are required at rf input and rf output ports. choose value for lowest frequency of operation. electrostatic sensitive device observe handling precautions -500 -400 -300 -200 -100 0 100 200 300 22.5 23 23.5 24 24.5 25 25.5 amplitude (mv) time (ns) notes: 1. leadframe material: copper alloy 2. dimensions are in inches [millimeters] 3. dimension does not include moldflash of 0.15mm per side. 4. dimension does not include moldflash of 0.25mm per side. 5. all ground leads and ground paddle must be soldered to pcb rf ground. hmc438ms8g / 438MS8GE smt gaas hbt mmic divide-by-5, dc - 7.0 ghz v03.0705 part number package body material lead finish msl rating package marking [3] hmc438ms8g low stress injection molded plastic sn/pb solder msl1 [1] h438 xxxx hmc438MS8GE rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] h438 xxxx [1] max peak re ow temperature of 235 c [2] max peak re ow temperature of 260 c [3] 4-digit lot number xxxx package information
frequency dividers & detectors - smt 6 6 - 93 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com pin number function description interface schematic 1 vcc supply voltage 5v 0.25v. 2 in rf input must be dc blocked. 3in rf input 180 out of phase with pin 2 for differential operation. ac ground for single ended operation. 4, 5 gnd all ground leads and ground paddle must be soldered to pcb rf/dc ground. 6 out divided output 180 out of phase with pin 7. 7 out divided output. 8 n/c no connection pin description hmc438ms8g / 438MS8GE smt gaas hbt mmic divide-by-5, dc - 7.0 ghz v03.0705
frequency dividers & detectors - smt 6 6 - 94 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com evaluation pcb list of materials for evaluation pcb 105786 [1] item description j1 - j3 pcb mount sma rf connector j4, j5 dc pin c1 - c4 100 pf capacitor, 0402 pkg. c5 10,000 pf capacitor, 0603 pkg. c6 4.7 f tantalum capacitor u1 hmc438ms8g / hmc438MS8GE divide-by-5 pcb [2] 105697 eval board [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 the circuit board used in the nal application should use rf circuit design te chniques. signal lines should have 50 ohm impedance while the package ground leads and backside ground slug should be connected directly to the ground plane similar to that shown. a suf cient number of via holes should be used to connect the top and bottom ground planes. the evaluation circuit board shown is available from hittite upon request. this evaluation board is designed for single ended input testing. j2 and j3 provide differential output signals. hmc438ms8g / 438MS8GE smt gaas hbt mmic divide-by-5, dc - 7.0 ghz v03.0705
frequency dividers & detectors - smt 6 6 - 95 for price, delivery, and to place orders, please contact 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 circuit hmc438ms8g / 438MS8GE smt gaas hbt mmic divide-by-5, dc - 7.0 ghz v03.0705
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