phase shifters - digital - chip 3 3 - 38 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 hmc648 gaas mmic 6-bit digital phase shifter, 2.9 - 3.9 ghz v02.1109 general description features functional diagram the hmc648 is a 6-bit digital phase shifter die which is rated from 2.9 to 3.9 ghz, providing 360 degrees of phase coverage, with a lsb of 5.625 degrees. the hmc648 features very low rms phase error of 1.5 degrees and extremely low insertion loss variation of 0.5 db across all phase states. this high accuracy phase shifter is controlled with posi- tive control logic of 0/+5v, and is internally matched to 50 ohms with no external components. low rms phase error: 1.5 low insertion loss: 4 db high linearity: +45 dbm positive control voltage 360 coverage, lsb = 5.625 die size: 3.27 x 1.90 x 0.1 mm typical applications the hmc648 is ideal for: ? ew receivers ? weather & military radar ? satellite communications ? beamforming modules ? phase cancellation parameter min. typ. max. units frequency range 2.9 3.9 ghz insertion loss* 46db input return loss* 16 db output return loss* 14 db phase error* 5 +10 / -18 deg rms phase error 1.5 deg insertion loss variation* 0.5 db input power for 1 db compression 31 dbm input third order intercept 45 dbm control voltage current 35 250 a bias control current 515ma *note: major states shown electrical specifi cations, t a = +25 c, vss= -5v, vdd= +5v, control voltage = 0/+5v, 50 ohm system
phase shifters - digital - chip 3 3 - 39 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 gaas mmic 6-bit digital phase shifter, 2.9 - 3.9 ghz v02.1109 hmc648 insertion loss, major states only normalized loss, major states only phase error, major states only input return loss, major states only output return loss, major states only -12 -10 -8 -6 -4 -2 0 2.4 2.8 3.2 3.6 4 4.4 insertion loss (db) frequency (ghz) -20 -15 -10 -5 0 5 10 15 20 2.4 2.8 3.2 3.6 4 4.4 phase error (degrees) frequency (ghz) -30 -25 -20 -15 -10 -5 0 2.4 2.8 3.2 3.6 4 4.4 return loss (db) frequency (ghz) -30 -25 -20 -15 -10 -5 0 2.4 2.8 3.2 3.6 4 4.4 return loss (db) frequency (ghz) 0 50 100 150 200 250 300 350 400 2.4 2.8 3.2 3.6 4 4.4 relative phase shift (degrees) frequency (ghz) -6 -4 -2 0 2 4 6 2.4 2.8 3.2 3.6 4 4.4 normalized loss (db) frequency (ghz) relative phase shift major states, including all bits
phase shifters - digital - chip 3 3 - 40 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 relative phase shift, rms, average, max, all states input ip3, major states only input ip2, major states only input p1db, major states only rms phase error vs. temperature insertion loss vs. temperature, major states only gaas mmic 6-bit digital phase shifter, 2.9 - 3.9 ghz v02.1109 hmc648 10 15 20 25 30 35 40 2.9 3.1 3.3 3.5 3.7 3.9 p1db (dbm) frequency (ghz) 30 35 40 45 50 55 60 2.9 3.1 3.3 3.5 3.7 3.9 ip3 (dbm) frequency (ghz) -12 -10 -8 -6 -4 -2 0 2.9 3.1 3.3 3.5 3.7 3.9 insertion loss (db) frequency (ghz) 60 70 80 90 100 110 2.9 3.1 3.3 3.5 3.7 3.9 ip2 (dbm) frequency (ghz) -10 -5 0 5 10 2.9 3.1 3.3 3.5 3.7 3.9 +25c +85c -40c relative phase shift (degrees) frequency (ghz) -10 -5 0 5 10 15 20 25 30 2.9 3.1 3.3 3.5 3.7 3.9 max average rms relative phase shift (degrees) frequency (ghz)
phase shifters - digital - chip 3 3 - 41 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 phase error vs. state gaas mmic 6-bit digital phase shifter, 2.9 - 3.9 ghz v02.1109 hmc648 absolute maximum ratings input power (rfin) 33 dbm (t= +85 c) bias voltage range (vdd) -0.2 to +12v bias voltage range (vss) +0.2 to -12v channel temperature (tc) 150 c thermal resistance (channel to die bottom) 120 c/w storage temperature -65 to +150 c operating temperature -55 to +85 c electrostatic sensitive device observe handling precautions truth table control voltage state bias condition low (0) 0 to 0.2 vdc high (1) vdd 0.2 vdc @ 35 a typ. control voltage input phase shift (degrees) rfin - rfout bit 1 bit 2 bit 3 bit 4 bit 5 bit 6 000000reference* 100000 5.625 010000 11.25 001000 22.5 000100 45.0 000010 90.0 000001 180.0 111111 354.375 any combination of the above states will provide a phase shift approximately equal to the sum of the bits selected. *reference corresponds to monotonic setting bias voltage & current vdd idd 5.0 5.2ma vss iss -5.0 5.2ma -15 -10 -5 0 5 10 0 45 90 135 180 225 270 315 360 phase error (degrees) state (degrees) 2.9 ghz 3.1, 3.3, 3.5, 3.7, 3.9 ghz pad number function description interface schematic 1 rfin this port is dc coupled and matched to 50 ohms. 2, 11 gnd these pads and die bottom must be connected to rf/dc ground. 3 vdd supply voltage. 4 - 6, 8 - 10 bit1, bit2, bit3, bit4, bit5. bit6 control input. see truth table and control voltage tables. 7 vss supply voltage. 12 rfout this port is dc coupled and matched to 50 ohms. pad descriptions
phase shifters - digital - chip 3 3 - 42 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 outline drawing gaas mmic 6-bit digital phase shifter, 2.9 - 3.9 ghz v02.1109 hmc648 notes: 1. all dimensions in inches (millimeters) 2. die thickness is 0.004 3. backside metallization: gold 4. backside metal is ground 5. bond pads metallization: gold 6. overall die size 0.002 die packaging information [1] standard alternate gp-1 (gel pack) [2] [1] refer to the packaging information section for die packaging dimensions. [2] for alternate packaging information contact hittite microwave corporation.
phase shifters - digital - chip 3 3 - 43 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 gaas mmic 6-bit digital phase shifter, 2.9 - 3.9 ghz v02.1109 hmc648 handling precautions follow these precautions to avoid permanent damage. storage: all bare die are placed in either waffle or gel based esd protective containers, and then sealed in an esd protective bag for shipment. once the sealed esd protective bag has been opened, all die should be stored in a dry nitrogen environment. cleanliness: handle the chips in a clean environment. do not attempt to clean the chip using liquid cleaning systems. static sensitivity: follow esd precautions to protect against > 250v esd strikes. transients: suppress instrument and bias supply transients while bias is applied. use shielded signal and bias cables to minimize inductive pick-up. general handling: handle the chip along the edges with a vacuum collet or with a sharp pair of bent tweezers. the surface of the chip has fragile air bridges and should not be touched with vacuum collet, tweezers, or fi ngers. mounting the chip is back-metallized and can be die mounted with electrically conductive epoxy. the mounting surface should be clean and fl at. epoxy die attach: apply a minimum amount of epoxy to the mounting surface so that a thin epoxy fi llet is observed around the perimeter of the chip once it is placed into position. cure epoxy per the manufacturers schedule. wire bonding ball or wedge bond with 0.025mm (1 mil) diameter pure gold wire. thermosonic wirebonding with a nominal stage temperature of 150 deg. c and a ball bonding force of 40 to 50 grams or wedge bonding force of 18 to 22 grams is recommended. use the minimum level of ultrasonic energy to achieve reliable wirebonds. wirebonds should be started on the chip and terminated on the package or substrate. all bonds should be as short as possible <0.31mm (12 mils). assembly diagram
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