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9 - 1 programmable harmonic filters - smt for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth functional diagram typical applications features general description the HMC1044LP3E is ideal for wideband transceiver harmonic fltering applications including: ? filtering lo harmonics to reduce modulator sideband rejection & demodulator image rejection ? amplifer harmonic filtering ? rf filtering programmable bandwidth: 1 to 3 ghz compatible with narrowband & wideband: ? plls with integrated vcos ? modulators ? demodulators lo harmonic rejection: ~20 db improves modulator/demodulator sideband/image rejection performance: 20 db typical single-ended or differential options footprint up to 90% smaller than current discrete fixed bandwidth solutions 16 lead 3x3 mm smt package the HMC1044LP3E is a programmable bandwidth lpf (low pass filter) targeted at all applications that use quadrature modulators and/or demodulators. the HMC1044LP3E flters out lo harmonics and ensures little or no lo contribution to modulator sideband rejection or demodulator image rejection performance. although targeted at lo fltering applications, the HMC1044LP3E can be used to flter all rf harmonics such as the ones generated by amplifers. the HMC1044LP3E offers a choice of 16 programmable bands, optimized for high and low cellular bands ranging from 1 to 3 ghz, making the HMC1044LP3E a truly wideband part compatible with wideband plls with integrated vcos and wideband quadrature modulators and demodulators. it enables wideband multi-standard, multi-carrier designs that are feld confgurable on-the-fy for each individual application. the HMC1044LP3E is packaged in a compact 3x3 mm qfn leadless package.
2 programmable harmonic filters - smt for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth parameter min. typ. max. units single-ended passband [1] 250 3060 mhz ?cutoff [2] tuning range (3 db loss) 1025 3060 mhz passband flatness 2.5 db passband insertion loss 3 5 db return loss 10 db input/output impedance 50 input ip3 (inband) 43 dbm differential passband [1] 250 3400 mhz ?cutoff [2] tuning range (3 db loss) 970 3400 mhz passband flatness 2.5 db passband insertion loss 3 5 db return loss 10 db input/output impedance 100 input ip3 (inband) 43 dbm supplies dc supply 3 3.3 3.5 v supply current 1 ua digital inputs digital input low level (vil) 0.4 v digital input high level (vih) 1.5 v [1] minimum frequency is limited by external dc blocking capacitor. displayed value corresponds to default evaluation board confguration of 100 pf. [2] ?cutoff defned as the point at which the insertion loss is 3 db below the passband insertion loss @ 500 mhz. electrical specifcations, t a = +25 c, v3 = 3.3 v (3 v to 3.5 v)
3 programmable harmonic filters - smt HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com -40 -35 -30 -25 -20 -15 -10 -5 0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 frequency (mhz) insertion loss (db) band 0 band 7 band 15 band 8 low bands high bands -40 -35 -30 -25 -20 -15 -10 -5 0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 frequency (mhz) insertion loss (db) band 0 band 7 band 8 band 15 low bands high bands -50 -40 -30 -20 -10 0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 frequency (mhz) insertion loss (db) band 0, 3 v, 3.3 v & 3.5 v band 7, 3 v, 3.3 v & 3.5 v band 8, 3 v, 3.3 v & 3.5 v band 15, 3 v, 3.3 v & 3.5 v -50 -40 -30 -20 -10 0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 25 c 85 c -40 c frequency (mhz) insertion loss (db) band 0 band 7 band 8 band 15 -30 -25 -20 -15 -10 -5 0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 band0 band7 band8 band15 frequency (mhz) return loss (db) -30 -25 -20 -15 -10 -5 0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 band0 band7 band8 band15 frequency (mhz) return loss (db) figure 1. single-ended insertion loss [1] figure 2. differential insertion loss [1] figure 3. single-ended insertion loss over supply voltage [1] figure 4. single-ended insertion loss over temperature [1] figure 5. single-ended return loss [1] figure 6. differential return loss [1] [1] low frequency performance limited by external dc blocking capacitors at rf input and output. typical performance characteristics
4 programmable harmonic filters - smt for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth -30 -25 -20 -15 -10 -5 0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 frequency (mhz) return loss (db) band 7, 3 v, 3.3 v & 3.5 v band 0, 3 v, 3.3 v & 3.5 v band 8, 3 v, 3.3 v & 3.5 v band 15, 3 v,3.3 v & 3.5 v -30 -25 -20 -15 -10 -5 0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 25 c 85 c -40 c frequency (mhz) return loss (db) band 0 band 8 band 7 band 15 0.3 0.4 0.5 0.6 0.7 0.8 0 500 1000 1500 2000 2500 3000 3500 4000 group delay (ns) frequency (mhz) band 0 band 7 band 8 band 15 figure 7. single-ended return loss vs. v3 [1] figure 8. single-ended return loss vs. temperature [1] figure 9. single-ended filter group delay [1] [1] low frequency performance limited by external dc blocking capacitors at rf input and output.
5 programmable harmonic filters - smt HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com HMC1044LP3E band setting typical 3 db cutoff frequency relative to 500 mhz single-ended differential 0 1025 970 1 1050 1000 2 1075 1030 3 1105 1055 4 1130 1085 5 1160 1120 6 1195 1155 7 1225 1195 8 2230 2335 9 2300 2430 10 2380 2530 11 2465 2655 12 2550 2770 13 2675 2940 14 2805 3145 15 3060 3400 HMC1044LP3E frequency bands
6 programmable harmonic filters - smt for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth outline drawing notes: [1] package body material: low stress injection molded plastic silica and silicon impregnated. [2] lead and ground paddle material: copper alloy. [3] lead and ground paddle plating: 100% matte tin. [4] dimensions are in inches [millimeters]. [5] lead spacing tolerance is non-cumulative. [6] pad burr length shall be 0.15 mm max. pad burr height shall be 0.05 mm max. [7] package warp shall not exceed 0.05 mm [8] all ground leads and ground paddle must be soldered to pcb rf ground. [9] refer to hittite application note for suggested pcb land pat - tern. part number package body material lead finish msl rating package marking [1] HMC1044LP3E rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] 1044 xxxx [1] 4-digit lot number xxxx [2] max peak refow temperature of 260 c package information electrostatic sensitive device observe handling precautions absolute maximum ratings reliability information parameter rating v3 -0.3 to +3.6 v rf power input 18 dbm digital input voltage range -0.3 to +3.6 v storage temperature -65 to +150 c refow soldering peak temperature 260 c time at peak temperature 40 sec maximum junction temperature 125 c operating temperature -40 to +85 c esd rating (hbm) class 2 thermal resistance 90 c/w
7 programmable harmonic filters - smt HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com pin descriptions pin number function description interface schematic 1, 4, 5, 6, 7, 8, 9, 12 gnd these pins and exposed paddle must be connected to rf/dc ground. 2 out_n this pin is dc coupled and matched to 50 ohms. external voltage must not be applied to this pin. [1] 3 out_p this pin is dc coupled and matched to 50 ohms. external voltage must not be applied to this pin. [1] 10 in_p this pin is dc coupled and matched to 50 ohms. external voltage must not be applied to this pin. [1] 11 in_n this pin is dc coupled and matched to 50 ohms. external voltage must not be applied to this pin. [1] 13 sen serial port enable (cmos) logic input 14 sck serial port clock (cmos) logic input 15 sdi serial port data (cmos) logic input 16 v3 dc power supply [1] although the pins are dc coupled they require external ac coupling for proper operation. please refer to evaluation pcb schematic for more information.
8 programmable harmonic filters - smt for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth evaluation pcb the circuit board used in the application should use rf circuit design techniques. signal lines should have 50 ohms impedance while the package ground leads and exposed paddle 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 order information item contents part number evaluation pcb only HMC1044LP3E evaluation pcb eval01-HMC1044LP3E evaluation kit HMC1044LP3E evaluation pcb usb interface board 6 usb a male to usb b female cable cd rom (contains user manual, evaluation pcb schematic, evaluation software) ekit01-HMC1044LP3E
9 programmable harmonic filters - smt HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com evaluation pcb schematic sch, customer evaluation 130-00329-00 a 01/01/2010 d. aceval HMC1044LP3E 1 qc111299 ----- engineering release 20/10/2011 d. aceval a cp120371 ---- production release d. aceval 03/05/2012 15-03-2012_13:47 sheet 1 of 1 a revisions rev ecn# zone description name date date 20 alpha rd chelmsford, ma 01824 hittite microwave corporation title project drawing #: drawn by 1cn88 code id no. size rev sheet a notice of proprietary property: this document and the information contained in it are the proprietary property of hittite microwave corporation. it may not be copied in any manner nor may any of the information in or upon it be used for any purpose without the expressed written consent of an authorized agent of hittite microwave corporation. 2 1 1 2 b a b c1 0.001uf HMC1044LP3E u1 9 10 11 12 13 14 15 16 8 7 6 5 4 3 2 1 v3 sdi sck sen spi gnd gnd gnd gnd gnd gnd gnd gnd out_n in_n in_p out_p c2 0.001uf 0.001uf c3 0.001uf c4 j3 j1 ssw-106-01-t-d 9 11 1 3 5 7 2 4 6 8 10 12 j5 j4 r1 0 r2 0 c5 10uf 3.3v tp1 tp2 fb1 1k c6 10uf c7 0.1uf 3.3v j2 gnd sd1 sck sen 3.3v gnd 3.3v
10 programmable harmonic filters - smt for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth HMC1044LP3E application information the HMC1044LP3E is an ideal lo harmonic flter for wideband applications featuring quadrature modulators and/or demodulators. the HMC1044LP3Es 16 user programmable bands enable the user to optimally attenuate 2nd and/ or 3rd lo harmonics in order to maximize quadrature modulator/demodulator sideband/image rejection performance. typical diagrams with the HMC1044LP3E are shown in figure 10 and figure 11 . figure 10. typical HMC1044LP3E transmitter application figure 11. typical HMC1044LP3E receiver application background, lo harmonics and modulator/demodulator sideband/image rejection most wideband quadrature modulators/demodulators in the market use some form of a flter to create the required in-phase and quadrature lo components at the fundamental frequency of the lo (1xlo). others, less common modulators/demodulators accept lo input at 2xlo frequency and are not based upon flters. the 1xlo types are particularly sensitive to lo 3rd harmonic levels, while the 2xlo types are more sensitive to 2nd harmonic levels. harmonics are normally present in all vcos and especially in rfics with integrated vcos. high lo harmonic content causes amplitude and phase mismatches, and ultimately performance degradation in modulator sideband rejection and demodulator image rejection, as shown in figure 12 .
11 programmable harmonic filters - smt HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com figure 12. -80 -70 -60 -50 -40 -30 -20 -10 0 -80 -70 -60 -50 -40 -30 -20 -10 0 hmc701 sweeper plot 11:18:12 am 3/19/2012 lo harmonic level (dbc) modulator sideband rejection (dbc) 3rd lo harmonic 2nd lo harmonic targeted minimum lo harmonic level targeted maximum modulator sideband rejection typical impact of 2nd and 3rd lo harmonic on modulator sideband rejection. [1] figure 12 shows a typical modulator with 1xlo input, where both the 2nd and 3rd lo harmonics affect the modulator sideband rejection performance at levels > -20 dbc relative to the lo signal power. it also shows that the 3rd lo harmonic has greater impact on modulator sideband rejection performance than the 2nd, and that there is little effect of the 2nd lo harmonic on modulator sideband rejection once the 2nd lo harmonic is below -20 dbc levels, relative to the lo signal level. the HMC1044LP3E is designed to ensure that the 2nd and the 3rd lo harmonics are below -20 dbc relative to the lo signal level across the entire operating range of hittites wideband plls with integrated vcos. thereby ensuring little or no lo contribution is added to modulator/demodulator sideband/image rejection performance degradation. using the HMC1044LP3E modulator/demodulator sideband/image rejection performance is specifc to each individual modulator/demodulator, and depends on a number of other variables including: type (1xlo or 2xlo input), balance (amplitude and phase matching), signal path matching and interface to other components, board layout, input signal bandwidth, and lo harmonics. figure 12 shows that typically the lo harmonics stop being a dominant contributor to modulator/demodulator sideband/image rejection performance degradation once they are below approximately -20 dbc relative to the lo signal level. however, the exact level at which harmonics cease being the dominant contributor to sideband/image rejection performance depends on each individual modulator/demodulator and each individual design. hence, the optimal band selection of the HMC1044LP3E may be different for different designs. figure 13 shows optimal 3rd harmonic attenuation achieved with the HMC1044LP3E without optimizing the 2nd harmonic, when the hmc830lp6ge pll with integrated vco is used as an lo to drive the hmc697lp4e quadrature modulator. the corresponding HMC1044LP3E band selections are shown in figure 14 . [1] measured with hmc697lp4e direct modulator at 2 ghz, with lo input power = 0 dbm, 1xlo type.
12 programmable harmonic filters - smt for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth -60 -50 -40 -30 -20 -10 0 500 1000 1500 2000 2500 3000 3rd lo harmonic 2nd lo harmonic harmonic level (dbc) lo fundamental frequency (mhz) filtered unfiltered targeted harmonic levels figure 13. maximum HMC1044LP3E attenuation of 3rd harmonic of the lo [2] 0 2 4 6 8 10 12 14 16 500 1000 1500 2000 2500 3000 selected band lo frequency (mhz) figure 14. HMC1044LP3E band selection corresponding to figure 13 observing the results shown in figure 13 in the context of targeted performance in figure 12 ; it is apparent that the HMC1044LP3E attenuates both the 3rd and the 2nd lo harmonics to well below the targeted maximum lo harmonic level shown in figure 12 , ensuring that the targeted modulator sideband rejection performance is achieved. figure 15 shows the optimal 2nd harmonic attenuation achieved with the HMC1044LP3E, when the hmc830lp6ge pll with integrated vco is used as an lo to drive the hmc697lp4e quadrature modulator. the corresponding HMC1044LP3E band selection is shown in figure 16 . figure 15. maximum HMC1044LP3E attenuation of 2nd harmonic of the lo [2] -60 -50 -40 -30 -20 -10 0 500 1000 1500 2000 2500 3000 3rd lo harmonic 2nd lo harmonic harmonic level (dbc) lo fundamental frequency (mhz) filtered unfiltered targeted harmonic levels -5 0 5 10 15 20 500 1000 1500 2000 2500 3000 selected band lo frequency (mhz) figure 16. HMC1044LP3E band selection corresponding to figure 15 observing the results shown in figure 15 in the context of the targeted performance in figure 12 ; it is apparent that the HMC1044LP3E attenuates both the 3rd and the 2nd lo harmonics to well below the targeted maximum lo harmonic level shown in figure 12 , ensuring that the targeted modulator sideband rejection performance shown in figure 12 is achieved. using the relationship between sideband/image rejection vs. lo harmonic distortion in figure 12 as a reference, it can be observed that both approaches (maximizing 2nd harmonic attenuation in figure 13 , and maximizing 3rd harmonic attenuation in figure 14 ) achieve sideband/image rejection performance improvement, and effectively remove any lo contribution to sideband/image rejection performance degradation. however, figure 12 suggests that, when using a 1xlo type modulator, more emphasis should be placed on attenuating the 3rd harmonic than the second because the 2nd harmonic ceases to be a contributor at levels ~<-20 dbc, while the 3rd harmonic continues contributing to sideband/image rejection, albeit at a smaller rate for the particular design characterized in figure 12 . [2] measured with hmc830lp6ge as an lo and hmc697lp4e modulator. the hmc830lp6ge was used in single-ended output confguration.
13 programmable harmonic filters - smt HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com figure 17 shows the maximum sideband rejection achieved without calibrating the modulator, both with and without the HMC1044LP3E. it is generated by selecting the HMC1044LP3E band that achieves maximum uncalibrated sideband rejection for each particular frequency accross a very wide bandwidth. the corresponding HMC1044LP3E band settings are shown in figure 18 . -60 -50 -40 -30 -20 -10 500 1000 1500 2000 2500 3000 uncalibrated sideband rejection (dbc) lo frequency (mhz) with HMC1044LP3E without HMC1044LP3E targeted image/sideband rejection performance -5 0 5 10 15 20 500 1000 1500 2000 2500 3000 selected band lo frequency (mhz) figure 17. optimal uncalibrated modulator sideband rejection with and and without HMC1044LP3E, single-ended lo confguration [3] figure 18. HMC1044LP3E band selection corresponding to figure 17 results shown in figure 17 confrm that the HMC1044LP3E improves modulator sideband rejection ~20 db across the wideband operation of the modulator and pll with integrated vco. sideband rejection performance improvements less than ~20 db occur at those frequencies where the lo harmonics are not a dominant contributor to sideband rejection, ie. where sideband rejection performance is already good. the corresponding HMC1044LP3E band selections shown in figure 18 are closer to those shown in figure 14 , than those from figure 16 . this confrms the data shown in figure 12 , and the postulation that the 3rd lo harmonic is a greater contributor to modulator sideband rejection degradation than the 2nd for 1xlo type modulators/demodulators. another variable that should be considered is the insertion loss of the HMC1044LP3E which can vary ~2.5 db across the pass band of the selected band setting as shown in figure 1 and figure 2 . the selected HMC1044LP3E band that results in optimal sideband/image rejection performance also depends on the lo input power at the modulator/ demodulator, which is specifc to each individual design. it depends on the output power of the pll with integrated vco (that is used as an lo) at each frequency, insertion loss of the HMC1044LP3E at the selected band setting, lo frequency, and the required modulator/demodulator lo input power. the harmonic attenuation and sideband rejection graphs in this section were generated by maintaining the minimum lo input power into the hmc697lp4e at -3 dbm across all frequencies, which falls well into the required lo input power specification in the hmc697lp4e data sheet of greater than -6 dbm and less than 6 dbm. for applications that require a flat output power response, over a wide bandwidth, it should be noted that it is possible to build a low harmonic source with flat output power over a wideband using a leveling loop based upon the hmc830lp6ge wideband pll with integrated vco, the HMC1044LP3E variable lpf, and the hmc993lp5e agc. [3] measured with hmc830lp6ge as an lo and hmc697lp4e modulator. the hmc830lp6ge was used in single-ended output confguration.
14 programmable harmonic filters - smt for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth serial port interface (spi) the HMC1044LP3E spi has only write and no read capability. it features a three wire serial port for simple communication with the host controller. the HMC1044LP3E has a 3-bit chip address which is fxed as 6b. serial port write operation main spi timing characteristics v3 = 3.3 v (3 v to 3.5 v), gnd = 0v parameter conditions min typ max units t 1 sdi to sck setup time 8 nsec t 2 sdi to sck hold time 8 nsec t 3 sck high duration 10 nsec t 4 sck low duration 10 nsec t 5 sen low duration 20 nsec t 6 sen high duration 20 nsec t 7 sck to sen [ a] 8 nsec a. sen must rise after the 16th falling edge of sck but before the next rising sck edge. if sck is shared amongst several devices this timing must be respected. a typical write cycle is shown in figure 19 . 1. the master asserts sen (active low serial port enable) followed by a rising edge of sck. 2. the HMC1044LP3E reads sdi (the msb) on the 1st rising edge of sck after sen active low. 3. the HMC1044LP3E registers the data bits in the next 8 rising edges of sck (for a total of 9 data bits). 4. the host places 4 register address bits on the next 4 falling edges of sck (msb to lsb) while the HMC1044LP3E reads the address bits on the corresponding rising edge of sck. 5. the host places 3 chip address bits on the next 3 falling edges of sck (msb to lsb). note the HMC1044LP3E chip address is fxed as 6d or 110b. figure 19. serial port write timing diagram
15 programmable harmonic filters - smt HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com register map reg 01h - autotune bit name width default description [15:0] autotune 4 15 band setting 0 - lowest band 15 - highest band
16 programmable harmonic filters - smt for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 978-250-3343 tel ? 978-250-3373 fax ? order on-line at www.hittite.com application support: apps@hittite.com HMC1044LP3E v00.0312 programmable harmonic low pass filter 1 - 3 ghz 3 db bandwidth notes:

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