frequency dividers & detectors - smt 6 6 - 50 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 hmc394lp4 / 394lp4e gaas hbt programmable 5-bit counter, dc - 2.2 ghz v08.0607 general description features functional diagram the hmc394lp4 & HMC394LP4E are low noise gaas hbt programmable 5-bit counters in 4 x 4mm leadless surface mount packages. this device allows continuous division from n= 2 to 32 at input frequen- cies up to 2.2 ghz. the output voltage swing is 800 mv with a duty cycle inversely proportional to n. the low additive ssb phase noise of -153 dbc/hz at 100 khz offset makes this counter an excellent choice for low noise synthesizer applications. ssb phase noise: -153 dbc/hz @ 100 khz selectable division from 2 to 32 parallel 5-bit control wide input power range: -20 to +10 dbm 4mm x 4mm leadless smt package electrical specifi cations, t a = +25 c, 50 ohm system, vcc= 5v typical applications programmable divider for offset synthesizer and variable divide by n applications: ? satellite communication systems ? point-to-point and point-to-multi-point radios ? lmds ? sonet parameter conditions min. typ. max. units maximum input frequency 2.2 ghz minimum input frequency sine wave input [1] 0.1 ghz input power range fin = 0.1 to 2.2 ghz -15 >-20 +10 dbm output power divide-by-2 4 dbm ssb phase noise fin = 1 ghz, n = 4 -153 dbc/hz output transition time 100 ps supply current (icc) 194 ma 1. divider will operate down to dc for square-wave input signal.
frequency dividers & detectors - smt 6 6 - 51 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 -30 -20 -10 0 10 20 0 0.5 1 1.5 2 2.5 3 input power (dbm) input frequency (ghz) ssb phase noise performance, fin= 1 ghz, n= 4, t= 25 c fundamental feedthru power, pin= 0 dbm, t= 25 c input sensitivity window, 5 major divide ratio states, t= 25 c input sensitivity window vs. temperature, n= 16, t= -40 c to +85 c output power, 5 major divide ratio states, t= 25 c recommended operating window typical supply current vs. vcc note: divider will operate over full voltage range shown above. vcc (v) icc (ma) 4.75 176 5.0 194 5.25 210 hmc394lp4 / 394lp4e gaas hbt programmable 5-bit counter, dc - 2.2 ghz v08.0607 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 10 2 10 3 10 4 10 5 10 6 10 7 ssb phase noise (dbc/hz) offset frequency (hz) -20 -15 -10 -5 0 5 10 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 output power (dbm) input frequency (ghz) n=32 n=16 n=8 n=2 n=4 -30 -20 -10 0 10 20 0 0.5 1 1.5 2 2.5 3 input power (dbm) input frequency (ghz) -50 -40 -30 -20 -10 0 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 n=2 n=4 n=8 n=16 n=32 output level (dbm) input frequency (ghz)
frequency dividers & detectors - smt 6 6 - 52 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 2nd harmonic, pin= 0 dbm, t= 25 c 3rd harmonic, pin= 0 dbm, t= 25 c 4th harmonic, pin= 0 dbm, t= 25 c 5th harmonic, pin= 0 dbm, t= 25 c output voltage wavform, fin= 1 ghz, n= 2, pin= 0 dbm, t= 25 c output voltage wavform, fin= 1 ghz, n= 17, pin= 0 dbm, t= 25 c -100 0 100 200 300 400 500 48 50 52 54 56 58 60 62 64 66 68 70 amplitude (mv) time (ns) -30 -25 -20 -15 -10 -5 0 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 n=2 n=4 n=8 n=16 n=32 output level (dbm) input frequency (ghz) -300 -200 -100 0 100 200 300 38 38.5 39 39.5 40 40.5 41 amplitude (mv) time (ns) -30 -25 -20 -15 -10 -5 0 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 n=2 n=8 n=16 n=32 output level (dbm) input frequency (ghz) -20 -15 -10 -5 0 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 output level (dbm) input frequency (ghz) n=2 n=4 n=8 n=32 n=16 -20 -15 -10 -5 0 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 n=4 n=8 n=16 n=32 output level (dbm) input frequency (ghz) hmc394lp4 / 394lp4e gaas hbt programmable 5-bit counter, dc - 2.2 ghz v08.0607
frequency dividers & detectors - smt 6 6 - 53 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 absolute maximum ratings outline drawing rf input (vcc = +5v) +13 dbm vcc +5.5v vlogic -1.6 to -1.2 vcc maximum channel temperature 135 c continuous pdiss (t = 85 c) (derate 55 mw/c above 85 c) 1.155 w storage temperature -65 to +150 c operating temperature -55 to +85 c 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. electrostatic sensitive device observe handling precautions hmc394lp4 / 394lp4e gaas hbt programmable 5-bit counter, dc - 2.2 ghz v08.0607 part number package body material lead finish msl rating package marking [3] hmc394lp4 low stress injection molded plastic sn/pb solder msl1 [1] h394 xxxx HMC394LP4E rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] h394 xxxx [1] max peak refl ow temperature of 235 c [2] max peak refl ow temperature of 260 c [3] 4-digit lot number xxxx package information
frequency dividers & detectors - smt 6 6 - 54 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 description pin number function description interface schematic 1 - 5 ao - a4 cmos compatible control input bit 0 (lsb) - 4. 6, 9, 10, 11, 12, 15, 18, 19, 20, 21, 22 gnd ground: backside of package has exposed metal ground slug which must be connected to ground. 7, 8, 23, 24 vcc supply voltage 5v 0.25v must be applied to all four pins. 13 in rf input 180 out of phase with pin 14 must be ac ground. 14 in rf input must be dc blocked. 16 out divided output pulse. 17 out divided output pulse 180 out of phase with pin 16. hmc394lp4 / 394lp4e gaas hbt programmable 5-bit counter, dc - 2.2 ghz v08.0607
frequency dividers & detectors - smt 6 6 - 55 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 hmc394lp4 programming truth table application circuit, (2 ghz - divide-by-20) * note: mount bypass capacitors as close to pins as possible. function (lsb) a0 a1 a 2 a3 a4 output low 0 0 0 0 0 / 2 1 0 0 0 0 / 3 0 1 0 0 0 / 4 1 1 0 0 0 ------ / 32 1 1 1 1 1 note: a0 through a4 are cmos compatible logic control inputs. hmc394lp4 / 394lp4e gaas hbt programmable 5-bit counter, dc - 2.2 ghz v08.0607
frequency dividers & detectors - smt 6 6 - 56 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 the circuit board used in the fi 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 sufficient 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. evaluation pcb list of materials for evaluation pcb 104898 [1] note: the evaluation pcb for the hmc394lp4 contains 10k ohm pull up resistors for each of the fi ve control inputs a0 through a4. programming the 31 distinct division ratios consists of installing or removing jumpers s1 through s5, as shown above. jumper s6 must always be installed to provide ground to pin 20. hmc394lp4 evaluation pcb truth table function s1 s2 s3 s4 s5 output low 0 0 0 0 0 / 2 1 0 0 0 0 / 3 0 1 0 0 0 / 4 1 1 0 0 0 ------ / 32 1 1 1 1 1 note: 0 = jumper installed. 1 = jumper not installed. item description j1 - j3 pcb mount sma rf connector c1 - c2 [2] 1.0 f tantalum capacitor c3 - c4 [2] .01 f capacitor, 0603 pkg. c5 - c8 1000 pf capacitor, 0603 pkg. r1* resistor sip 10 k ohm s1 - s6 jumper (shunt) 2mm u1 hmc394lp4 / HMC394LP4E 5-bit counter pcb 104435 eval board [1] reference this number when ordering complete evaluation pcb [2] optional components. hmc394lp4 / 394lp4e gaas hbt programmable 5-bit counter, dc - 2.2 ghz v08.0607
frequency dividers & detectors - smt 6 6 - 57 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 applications information simplifi ed block diagram asynchronous programming the 5-bit programmable counter counts-down from the programmed value of the data bits to zero and issues an output pulse at the end of each cycle. settling time of the programmable 5-bit counter is defi ned as the maximum time required for the counter to change the division ratio n to a new value after the data bits have settled. the worst case settling time occurs if the data bits a0 thru a4 are changing during the load cycle. under this condition, the data bits may potentially be erroneous when they are clocked in and in the worst case could be all 1s, requiring 32 clock cycles until the correct data is re-loaded into the fl ip fl ops. the worst case asynchronous settling time can be calculated as follows: t settling max = 32/f in (for asynchronous programming) as an example, if the input frequency is 1 ghz, the maximum settling time is 32 ns hmc394lp4 / 394lp4e gaas hbt programmable 5-bit counter, dc - 2.2 ghz v08.0607
frequency dividers & detectors - smt 6 6 - 58 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 synchronous programming for applications which can not tolerate a momentary undefi ned division ratio, which normally occurs while changing the data bits (a0-a4) at random, synchronous programming can be used. data is loaded into the counter on every rising edge of the clock which occurs while the output (out) is high. the typical minimum setup and hold times are shown in the table below as a function of frequency. for precision applications, the rising edge of the complementary output may be used to latch the new data bits (a0-a4), so that all bits are settled before the next load cycle. t settling max = n/f in (for synchronous programming) where n is the desired division ratio, and f in = input frequency (hz) programmable divider timing requirements for synchronous programming in out out current data new data a0-a4 t su t hold data load rising edge rising edge to clock new data parameter 0.5 ghz 1 ghz 2 ghz t setup 200 ps 200 ps 200 ps t hold 700 ps 300 ps 120 ps hmc394lp4 / 394lp4e gaas hbt programmable 5-bit counter, dc - 2.2 ghz v08.0607
frequency dividers & detectors - smt 6 6 - 59 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 cmos/ttl input characteristics maximum input logic 0 voltage (v il maximum ) = 1.1v @ 10 ua. minimum input logic 1 voltage (v ih minimum ) = 1.8v @ 500 ua. input iv characteristics for the logic inputs (a0-a4) are shown below: -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 012345 input current (ma) input voltage (v) v il max v ih min hmc394lp4 / 394lp4e gaas hbt programmable 5-bit counter, dc - 2.2 ghz v07.0705
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