microwave corporation 10 - 96 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com freq. divider & detectors - smt 10 HMC438MS8G smt gaas hbt mmic divide-by-5, dc - 7.0 ghz general description features functional diagram the HMC438MS8G is a low noise divide-by-5 static divider utilizing ingap gaas hbt technology in a low cost 8 lead surface mount plastic package. 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 speci cations, t a = +25?c, 50 ohm system, vcc= 5v typical applications prescaler for dc to c band pll applications: unii, pt. - pt. & vsat radios 802.11a & hiperlan wlan fiber optic cellular / 3g infrastructure 1. divider will operate down to dc for square-wave input signal. v01.1002 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
microwave corporation 10 - 97 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 10 freq. dividers & detectors - smt -20 -15 -10 -5 0 5 10 15 20 0123456789 input power (dbm) input frequency (ghz) -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) -6 -5 -4 -3 -2 -1 0 1 2 3 4 0123456789 +25 c +85 c -40 c output 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) gaas mmic sub-harmonically pumped mixer 17 - 25 ghz HMC438MS8G ssb phase noise performance, pin= 0 dbm, fin= 6ghz, t= 25 ? input sensitivity window, t= 25 ? input sensitivity window vs. temperature smt gaas hbt mmic divide-by-5, dc - 7.0 ghz output power vs. temperature recommended operating window -50 -40 -30 -20 -10 0 0123456789 pfeedthru 2nd harm 3rd harm output level (dbm) input frequency (ghz) -70 -60 -50 -40 -30 -20 -10 0 0123456789 both output ports terminated one output port terminated output level (dbm) input frequency (ghz) reverse leakage, pin= 0 dbm, t= 25 ? output harmonic content, pin= 0 dbm, t= 25 ? v01.1002
microwave corporation 10 - 98 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com freq. divider & detectors - smt 10 -300 -200 -100 0 100 200 300 400 22.5 23 23.5 24 24.5 25 25.5 amplitude (mv) time (ns) output voltage waveform, pin= 0 dbm, fout= 882 mhz, t= 25 ? 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. HMC438MS8G smt gaas hbt mmic divide-by-5, dc - 7.0 ghz v01.1002 notes: 1. package body material: low stress injection molded plastic silica and silicon impregnated. 2. leadframe material: copper alloy 3. leadframe plating: sn/pb solder 4. dimensions are in inches [millimeters]. 5. dimension does not include moldflash of 0.15mm per side. 6. dimension does not include moldflash of 0.25mm per side. 7. all ground leads and ground paddle must be soldered to pcb rf ground.
microwave corporation 10 - 99 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 10 freq. dividers & detectors - smt 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 smt gaas hbt mmic divide-by-5, dc - 7.0 ghz v01.1002
microwave corporation 10 - 100 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com freq. divider & detectors - smt 10 HMC438MS8G smt gaas hbt mmic divide-by-5, dc - 7.0 ghz v01.1002 evaluation pcb list of materials item description j1 - j3 pc 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 divide-by-5 pcb* 105697 eval board * circuit board material: rogers 4350 the circuit board used in the ? nal application should use rf circuit design techniques. 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 evalu- ation board is designed for single ended input testing. j2 and j3 provide differential output signals.
microwave corporation 10 - 101 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 10 freq. dividers & detectors - smt HMC438MS8G smt gaas hbt mmic divide-by-5, dc - 7.0 ghz v01.1002 application circuit
|
