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AZP81 pecl/ecl filter-based multiplier & li miting amp with selectable enable 1630 s. stapley dr., suite 127 ? mesa, arizona 85204 ? usa ? (480) 962-5881 ? fax (623) 505-2414 www.azmicrotek.com arizona microtek, inc. features ? high bandwidth for 1+ghz ? 3.0v to 5.5v power supply ? selectable enable polarity ? designed for filters to select odd or even harmonics ? s-parameter (.s1p and .s2p) files available on arizona microtek website description the AZP81 is a specialized multiplier chip designed to be used with an external filter. it supplies three different gain paths. a low gain path is used with a resonator, usually a crystal (d/d to q ). an intermediate gain path with fast output edges supplies a filter (d/d to fltrdr/fltrdr ). a high gain limiting amp (ampin to q hg /q hg ) with a selectable enable provides industry standard 100k pecl/ecl outputs. when q hg /q hg are disabled, the AZP81?s oscillator loop conti nues to operate. see truth table below for enable function. it also provides a v bb and 470 internal bias resistors from d/d to v bb and ampin to v bb . the v bb pin can support 1.5ma sink/source current. bypassing v bb and d to ground with 0.01 to 0.1 f capacitors is recommended. output q has an on-chip 4ma pull-down current source while output fltrdr has an on-chip 8ma pull-down current source. external resistors to v ee may also be used to increase pull-down current to a maximum of 25ma each. d v bb q hg en q q hg 470 fltrdr ampin 8ma 4ma 470 d v ee en-sel limiting amp fltrdr enable truth table en-sel en (pecl/cmos) q hg q hg nc nc low high or nc low data high data v ee * v ee * low or nc high data low data high *connections to v ee must be less than 1 . package availability package part no. marking notes mlp 16 (3x3) green / rohs compliant / lead (pb) free AZP81lg azmg p81 1,2 1 add r1 at end of part number for 7 inch (1k parts), r2 for 13 inch (2.5k parts) tape & reel. 2 date code format: ?y? for year followed by ?ww? for week. pin description pin function d/d inputs from resonator q output to resonator ampin inputs from filter fltrdr/fltrdr outputs to filter q hg /q hg outputs w/high gain v bb ref. voltage output en enable input en-sel selects enable logic
AZP81 june 2009 rev - 4 www.azmicrotek.com 2 timing diagrams d to q /fltrdr ampin to q hg AZP81l pinout leave pad open or connect to v ee top view (en-sel open) (en-sel connected to v ee ) en en ampin q hg
AZP81 june 2009 rev - 4 www.azmicrotek.com 3 absolute maximum ratings. beyond which device life may be impaired. characteristic symbol rating unit pecl power supply (v ee = 0v) v ee 0 to 6.0 v dc pecl input voltage (v ee = 0v) v i 0.75 with respect to v bb v dc pecl en input voltage (v ee = 0v) v i 0 to 6.0 v dc ecl power supply (v cc = 0v) v ee -6.0 to 0 v dc ecl input voltage (v cc = 0v) v i 0.75 with respect to v bb v dc ecl en input voltage (v ee = 0v) v i -6.0 to 0 v dc output current --- continuous q , fltrdr/fltrdr --- surge i out 25 50 ma output current --- continuous q hg /q hg --- surge i out 50 100 ma operating temperature range t a -40 to +85 c 100k ecl dc characteristics (v ee = -3.0v to -5.5v, v cc = gnd) -40 c 0 c 25 c 85 c symbol characteristic min max min max min max min max unit v oh output high voltage q , fltrdr/fltrdr -1045 -895 -1005 -855 -980 -830 -910 -760 mv v ol output low voltage q , fltrdr/fltrdr -2010 -1710 -1985 -1685 -1965 -1665 -1910 -1610 mv v oh output high voltage 1 q hg /q hg -1085 -880 -1025 -880 -1025 -880 -1025 -880 mv v ol output low voltage 1 q hg /q hg -1830 -1555 -1810 -1620 -1810 -1620 -1810 -1620 mv v ih input high voltage d/d en -1165 -1165 -390 v cc -1165 -1165 -390 v cc -1165 -1165 -390 v cc -1165 -1165 -390 v cc mv v il input low voltage d/d en -2250 v ee -1475 -1475 -2250 v ee -1475 -1475 -2250 v ee -1475 -1475 -2250 v ee -1475 -1475 mv v bb reference voltage -1390 -1250 -1390 -1250 -1390 -1250 -1390 -1250 mv i il input low current en (ecl) en (cmos) -150 -300 -150 -300 -150 -300 -150 -300 a i ih input high current en 150 150 150 150 a i ee power supply current 63 63 63 68 ma 1. specified with each output terminated through a 50 ? resistor to v cc ? 2v. 100k lvpecl dc characteristics (v ee = gnd, v cc = +3.3v) -40 c 0 c 25 c 85 c symbol characteristic min max min max min max min max unit v oh output high voltage q , fltrdr/fltrdr 2255 2405 2295 2445 2320 2470 2390 2540 mv v ol output low voltage q , fltrdr/fltrdr 1290 1590 1315 1615 1335 1635 1390 1690 mv v oh output high voltage 1 q hg /q hg 2215 2420 2275 2420 2275 2420 2275 2420 mv v ol output low voltage 1 q hg /q hg 1470 1745 1490 1680 1490 1680 1490 1680 mv v ih input high voltage d/d en 2135 2135 2910 v cc 2135 2135 2910 v cc 2135 2135 2910 v cc 2135 2135 2910 v cc mv v il input low voltage d/d en 1050 v ee 1825 1825 1050 v ee 1050 v ee 1825 1825 1050 v ee 1825 1825 -1475 -1475 mv v bb reference voltage 1910 2050 1910 2050 1910 2050 1910 2050 mv i il input low current en (ecl) en (cmos) -150 -300 -150 -300 -150 -300 -150 -300 a i ih input high current en 150 150 150 150 a i ee power supply current 1 63 63 63 68 ma 1. for supply voltages other than 3.3v, use the ec l table values and add supply voltage value. 2. specified with each output terminated through a 50 ? resistor to v cc ? 2v.
AZP81 june 2009 rev - 4 www.azmicrotek.com 4 100k pecl dc characteristics (v ee = gnd, v cc = +5.0v) -40 c 0 c 25 c 85 c symbol characteristic min max min max min max min max unit v oh output high voltage q , fltrdr/fltrdr 3955 4105 3995 4145 4020 4170 4090 4240 mv v ol output low voltage q , fltrdr/fltrdr 2990 3290 3015 3315 3035 3335 3090 3390 mv v oh output high voltage 1 q hg /q hg 3915 4120 3975 4120 3975 4120 3975 4120 mv v ol output low voltage 1 q hg /q hg 1470 1745 1490 1680 1490 1680 1490 1680 mv v ih input high voltage d/d en 3835 3835 4610 v cc 3835 3835 4610 v cc 3835 3835 4610 v cc 3835 3835 4610 v cc mv v il input low voltage d/d en 2750 v ee 3525 3525 2750 v ee 3525 3525 2750 v ee 3525 3525 2750 v ee 3525 3525 mv v bb reference voltage 3610 3750 3610 3750 3610 3750 3610 3750 mv i il input low current en (ecl) en (cmos) -150 -300 -150 -300 -150 -300 -150 -300 a i ih input high current en 150 150 150 150 a i ee power supply current 1 63 63 63 68 ma 1. for supply voltages other than 5.0v, use the ec l table values and add supply voltage value. 2. specified with each output terminated through a 50 ? resistor to v cc ? 2v. ac characteristics (v ee = -3.0v to -5.5v; v cc = gnd or v cc = 3.0v to 5.5v, v ee = gnd) -40 c 0 c 25 c 85 c symbol characteristic min typ max min typ max min typ max min typ max unit t plh / t phl propagation delay d/d to q d/d to fltrdr/fltrdr 2 ampin to q hg /q hg 1 (se) 90 130 200 200 260 380 90 130 200 200 260 380 90 130 200 200 260 380 90 130 200 200 260 380 ps t skew duty cycle skew 3 (se) 5 20 5 20 5 20 5 20 ps v pp (ac) input swing (se) 4 d/d ampin 300 150 2000 2000 300 150 2000 2000 300 150 2000 2000 300 150 2000 2000 mv t r / t f output rise/fall times (20% - 80%) 80 240 80 240 80 240 80 240 ps x max maximum recommended multiply ratio even harmonics odd harmonics 8 7 8 7 8 7 8 7 1. specified with q hg /q hg terminated through a 50 ? resistor to v cc ? 2v. 2. specified with fltrdr termin ated into an ac coupled 50 ? load, fltrdr into an ac coupled 50 ? load along an external 8ma pull-down current. 3. duty cycle skew is the difference between a t plh and t phl propagation delay through a device. 4. single ended input swing for wh ich ac parameters guaranteed. single ended ac pp input
AZP81 june 2009 rev - 4 www.azmicrotek.com 5 fig 1: typical large signal outputs, q hg / q hg measured with 750mv pp on ampin, q hg /q hg each terminated to v cc -2v via 50 ? resistors. 0 100 200 300 400 500 600 700 800 900 1000 0 500 1000 1500 2000 2500 3000 3500 4000 frequency (mhz) voutpp (mv)
AZP81 june 2009 rev - 4 www.azmicrotek.com 6 application the AZP81 is a ?filter-based? oscillator gain stage and multiplier. generating a spectrum of harmonics from a sine- wave input, an external bandpass filter selects the desired harmonic. a crystal or saw (with associated passive disc rete components) is connected between d and q (pins 1 and 16, respectively) to form an high stability oscillator stage. alte rnatively, an external colpitts, pierce or similar sine- wave oscillator may be fed into d (pin 1) to drive the AZP81. in this case, input amplitude should be less than 1 v pp on d for best results. also, tie the q pin to v cc to reduce fundamental subharmonic and other noise source coupling into the circuit board. the d input also drives another higher gain stage. this stage generates fast edges with resultant high harmonic spectral content. in one mode, the signal on fltrdr (pin 14) is a square wave with greater spectral energy at odd harmonics (3x, 5x, 7x). figure 4 illustrates the typical sp ectral output at fltrdr. a nother mode is selected by connecting fltrdr and fltrdr. this mode generates a pulse wave which contains greater spectral energy at even harmonics (2x, 4x, 6x, 8x). figure 5 illustrates the typical spectral output at fltrdr when the two pins are shorted together. an external bandpass filter insert ed between fltrdr (or fltrdr/fltrdr ) and ampin (pin 7) selects the desired harmonic and attenuates the rest. this filter is typically either an lc or saw implementation. the bandpass filter is ac coupled since both the fltdr and ampin signals are internally biased. the filter must be designed for the drive impedance found at fltrdr and the input impedance at ampin. graphs that follow in this data sheet show the s-parameters for these pins. also included are graphs of the output impedance magnitude of fltrdr and the input impedance magnitude of ampin. these impedance graphs provide a way to approximate the filter required without the use of s-parameter based design software. the filter and other elements on the circuit board must be placed carefully to minimi ze subharmonic feed-through. the resultant signal level at ampin should be 150 mv peak-peak or greater for best limiting amplifier performance. the limiting amplifier provides a high bandwidth pecl/ecl output into the standard load of 50 ? to v cc ? 2v. figure 1 shows the large signal output swing versus frequency. it may be desirable to hold off the limiting amplifier op eration until the sine-wave oscillator has started. a capacitor may be used with the en pin to create a delay. connect the capacitor from en to v cc (if en-sel is open) or v ee (if en-sel is connected to v ee ). this modification will avoid high-frequency parasitic feedback from the circuit board during oscillator startup. a 220 f capacitor will provide approximately 10 s delay. arizona microtek?s website (www.azmicrotek.com) contains s-parameters for all signal paths in industry-standard .s1p and .s2p format supporting an easier rf design process.
AZP81 june 2009 rev - 4 www.azmicrotek.com 7 fig 2: typical multiplier application (simplified logic shown) fig 3: typical lc band pass filter fltrdr q hg v bb d d q hg q AZP81 limiting amp band pass filter en ampin crystal or saw 7 10 9 3 2 1 16 14 13 12 add this connection to convert square wave into pulse wave fltrdr
AZP81 june 2009 rev - 4 www.azmicrotek.com 8 fig 4: typical spectrum output of fltrdr (square wave) full limiting 155 mhz input signal fig 5: typical spectrum output of fltrdr (pulse wave) full limiting 155 mhz input signal -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 200 400 600 800 1000 1200 1400 1600 1800 2000 frequency (mhz) output level (db relative) 155 mhz input frequency even harmonics 8x maximum recommended harmonic -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 200 400 600 800 1000 1200 1400 1600 1800 2000 frequency (mhz) output level (db relative) 155 mhz input frequency odd harmonics 7x maximum recommended harmonic
AZP81 june 2009 rev - 4 www.azmicrotek.com 9 s-parameters fig 6: s11, d to q fig 7: s12, d to q 0.65 0.7 0.75 0.8 0.85 0.9 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude -50 -40 -30 -20 -10 0 phase s11 mag s11 phase 0 0.008 0.016 0.024 0.032 0.04 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude 100 125 150 175 200 225 phase s12 mag s12 phase
AZP81 june 2009 rev - 4 www.azmicrotek.com 10 fig 8: s21, d to q fig 9: s22, d to q 5.5 6 6.5 7 7.5 8 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude 80 100 120 140 160 180 phase s21 mag s21 phase 0.3 0.4 0.5 0.6 0.7 0.8 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude 130 140 150 160 170 180 phase s22 mag s22 phase
AZP81 june 2009 rev - 4 www.azmicrotek.com 11 fig 10: s11, d to fltrdr fig 11: s12, d to fltrdr (1): fltrdr open, not connected to fltrdr (2): fltrdr connected to fltrdr 0 0.006 0.012 0.018 0.024 0.03 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude 100 125 150 175 200 225 phase s12 mag (1) s12 mag (2) s21 phase (1) s21 phase (2) 0.6 0.65 0.7 0.75 0.8 0.85 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude -75 -60 -45 -30 -15 0 phase s11 mag (1) s11 mag (2) s11 phase (1) s11 phase (2)
AZP81 june 2009 rev - 4 www.azmicrotek.com 12 fig 12: s21, d to fltrdr fig 13: s22, d to fltrdr (1): fltrdr open, not connected to fltrdr (2): fltrdr connected to fltrdr 0 6 12 18 24 30 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude -250 -200 -150 -100 -50 0 phase s21 mag (1) s21 mag (2) s21 phase (1) s21 phase (2) 0 0.2 0.4 0.6 0.8 1 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude 80 100 120 140 160 180 phase s22 mag (1) s22 mag (2) s22 phase (1) s22 phase (2)
AZP81 june 2009 rev - 4 www.azmicrotek.com 13 fig 14: s11, ampin to q hg 0.76 0.77 0.78 0.79 0.8 0.81 0.82 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude -60 -50 -40 -30 -20 -10 0 phase s11 mag s11 phase
AZP81 june 2009 rev - 4 www.azmicrotek.com 14 0 100 200 300 400 500 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude (ohms) input impedance 0 5 10 15 20 25 30 35 40 45 50 50 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 frequency (mhz) magnitude (ohms) output impedance (1) output impedance (2) impedances fig 15: fltdr output impedance (1): fltrdr open, not connected to fltrdr (2): fltrdr connected to fltrdr fig 16: ampin input impedance
AZP81 june 2009 rev - 4 www.azmicrotek.com 15 package diagram mlp 16 dimensioning and tolerancing conform to asme t14-1994. the terminal #1 and pad numbering convention shall conform to jesd 95-1 spp-012. dimension b applies to metallized pad and is measured between 0.25 and 0.30 mm from pad tip. coplanarity applies to the exposed pads as well as the terminals. notes: 1. 2. 3. 4. d e aaa 2 x c d 2 e 2 b a aaa top view index area (d/2 x e/2) 2 x c 2. d2 d2/2 e2/2 e2 l e 3 x e 3 x bbb bottom view c a b 3. e 1 2 m 5. inside corners of metallized pad may be square or rounded 5. 16 x b dim min max a a1 a3 b d d2 e e2 e l aaa bbb ccc 0.80 0.00 0.18 2.90 0.25 2.90 0.25 0.30 1.00 0.30 0.50 0.25 ref 0.50 bsc 0.25 0.10 0.10 millimeters 0.05 3.10 1.95 3.10 1.95 a a1 a3 side view c seating plane 0.08 c ccc c 4.
AZP81 june 2009 rev - 4 www.azmicrotek.com 16 arizona microtek, inc. reserves the right to change circuitry a nd specifications at any time without prior notice. arizona mic rotek, inc. makes no warranty, representation or guarant ee regarding the suitability of its products for any particular purpose, nor does a rizona microtek, inc. assume any liability arising out of the applica tion or use of any product or ci rcuit and specifically disclaims any and all liability, including without limitation special, consequential or inci dental damages. arizona microtek, inc. does not convey a ny license rights nor the rights of others. arizona microtek, inc. products are not designed, intended or authorized for use as component s in systems intended to support or sustain life, or for any other application in which the fa ilure of the arizona microtek, inc. product could create a situation where personal injury or death may occur. should buye r purchase or use arizona microtek, inc. products for any such unintended or unauthorized application, buyer shall in demnify and hold arizona microtek, inc. and its officers, employees, subsidiaries, affiliates, and distributor s harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising ou t of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that arizona microtek, inc. was negligent regarding the design or manufacture of the part.

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