this document contains information on a new product. specifications and information are subject to change without notice wj communications, inc ? phone 1-800-wj1-4401 ? fax: 408-577-6621 ? e-mail: sales@wj.com ? web site: www.wj.com july 2003 VG111 pcs/umts-band variable gain amplifier product information the communications ed g e tm product features ? 1800 ? 2200 mhz bandwidth ? 29 db attenuation range ? +40 dbm output ip3 ? +21 dbm p1db ? constant ip3 & p1db over attenuation range ? single voltage supply ? 6x6 mm 28-pin qfn package ? mttf > 100 years applications ? xmit & rcv agc circuitry for mobile infrastructure product description the VG111 is a pcs / umts-band high dynamic range variable gain amplifier (vga) packaged in a 6x6 mm surface-mount package. the +21 dbm output compression point and +40 dbm output intercept point of the amplifier are maintained over the entire attenuation range, making the VG111 ideal for use in transmitter and receiver agc circuits and as a variable gain stage following an lna in high dynamic range receiver front ends. superior thermal design allows the product to have a minimum mttf rating of 100 years at a mounting temperature of +85o c. all devices are 100% rf & dc tested and packaged on tape and reel for automated surface-mount assembly. functional diagram function pin no gain control 5 no connect 7, 19, 21 rf input 11 rf output / dc bias 25 ground all other pins backside copper specifications parameter units min typ max conditions frequency range mhz 1800 1900 2100 2200 see note 1 gain at min. attenuation db 12 14 14 input return loss db 9 12 output return loss db 9 12 output p1db dbm +21.5 +21 output ip3 dbm +40 +37.5 see note 2 noise figure at min. attenuation db 4.0 4.1 v ctrl = 0 v gain variation range db 29 30 see note 3 gain variation control voltage, v ctrl v 0 4.5 group delay ns 0.6 supply voltage v +5 operating amplifier current range ma 120 150 180 pin 25 gain control pin current range ma 0 25 pin 5 draws no current at maximum gain thermal resistance c / w 59 junction temperature c 160 see note 4 test conditions unless otherwise noted. 1. t = 25oc, vdd = +5 v, frequency = 800 mhz in an application circuit. 2. 3oip measured with two tones at an output power of +10 dbm/tone separated by 10 mhz. the suppression on the largest im3 pr oduct is used to calculate the 3oip using a 2:1 rule. 3. the gain variation range is measured with 16 ma of current on gain control pin 5. 4. the junction temperature ensures a minimum mtbf rating of 1 million hours of usage. absolute maximum rating ordering information parameter rating part no. description operating case temperature -40 to +85 c VG111 pcs/umts-band variable gain amplifier storage temperature -55 to +125 c VG111-pcb1900 1.8 ? 2.0 ghz fully assembled application board amplifier supply voltage (pin 25) +6 v VG111-pcb2100 2.0 ? 2.2 ghz fully assembled application board attenuation control voltage +5.5 v rf input power (continuous) +12 dbm junction temperature +220 c operation of this device above any of these parameters may cause permanent damage. n/c gnd vctrl gnd gnd gnd gnd 8 9 10 11 12 13 14 28 27 26 25 24 23 22 7 6 5 4 3 2 1 15 16 17 18 19 20 21 gnd gnd gnd rf out gnd gnd gnd gnd gnd gnd rf in gnd gnd gnd gnd gnd gnd gnd n/c gnd n/c variable attenuator amp
this document contains information on a new product. specifications and information are subject to change without notice wj communications, inc ? phone 1-800-wj1-4401 ? fax: 408-577-6621 ? e-mail: sales@wj.com ? web site: www.wj.com july 2003 VG111 pcs/umts-band variable gain amplifier product information the communications ed g e tm application circuit: 1.8 ? 2.0 ghz (VG111-pcb1900) ? pins 7, 19, and 21 should not be connected. ? the amplifier is biased through pin 25 and should be connected directly into a voltage regulator. ? dnp represents do not place. ? distances are shown from the edge-to-edge for the land pattern. circuit board material: .014? fr-4, 4 layers, .062? total thickness bill of materials ref. des. description size c1, c7 47 pf chip capacitor 0603 c2, c5 do not place c3, c4 0.01 f chip capacitor 0603 c6 0.5 pf chip capacitor 0603 l1, l2 22 nh chip inductor 0603 r1 100 ? chip resistor 0603 r2 2.2 ? chip resistor 0603 q1 mmbt2222 motorola transistor sot-23 u1 VG111 variable gain amplifier qfn 6x6 s-parameters attenuation control voltage = 0 v, 25c 6 8 10 12 14 16 1800 1850 1900 1950 2000 frequency (mhz) s21 (db) -20 -15 -10 -5 0 5 return loss (db) s22 s11 s21 s11, s22, s21 vs gain control voltage frequency = 1900 mhz, 25c -20 -10 0 10 20 012345 gain control voltage (v) magnitude (db) -30 -20 -10 0 10 normalized gain (db) gain s22 s11 normalized to the maximum gain level of 14 db normalized gain gain flatness 25c -2.0 -1.5 -1.0 -0.5 0.0 -25 -20 -15 -10 -5 0 normalized gain (db) flatness (db) f = 1.93 - 1.99 ghz f = 1.85 - 1.91 ghz normalized to the maximum gain level of 14 db phase shift vs. normalized gain frequency = 1900 mhz, 25c -30 -25 -20 -15 -10 -5 0 -30 -25 -20 -15 -10 -5 0 normalized gain (db) normalized phase (deg) output intercept point vs. output power frequency = 1900 mhz, 25c 20 25 30 35 40 -5 0 5 10 15 output power (dbm) oip3 (dbm) oip3 / p1db vs. normalized gain frequency = 1900 mhz, pout = +10 dbm, 25c 15 20 25 30 35 40 -20 -15 -10 -5 0 normalized gain (db) magnitude (dbm) p1db oip normalized to the maximum g ain level of 14 db
this document contains information on a new product. specifications and information are subject to change without notice wj communications, inc ? phone 1-800-wj1-4401 ? fax: 408-577-6621 ? e-mail: sales@wj.com ? web site: www.wj.com july 2003 VG111 pcs/umts-band variable gain amplifier product information the communications ed g e tm application circuit: 2.0 ? 2.2 ghz (VG111-pcb2100) ? pins 7, 19, and 21 should not be connected. ? the amplifier is biased through pin 25 and should be connected directly into a voltage regulator. ? dnp represents do not place. ? distances are shown from the edge-to-edge for the land pattern. circuit board material: .014? fr-4, 4 layers, .062? total thickness bill of materials ref. des. description size c1, c7 47 pf chip capacitor 0603 c2 0.2 pf chip capacitor 0603 c3, c4 0.01 f chip capacitor 0603 c5 0.6 pf chip capacitor 0603 c6 do not place l1, l2 22 nh chip inductor 0603 r1 100 ? chip resistor 0603 r2 2.2 ? chip resistor 0603 q1 mmbt2222 motorola transistor sot-23 u1 VG111 variable gain amplifier qfn 6x6 output intercept point vs. output power frequency = 2140 mhz, 25c 20 25 30 35 40 -5 0 5 10 15 output power (dbm) oip3 (dbm) oip3 / p1db vs. normalized gain frequency = 2140 mhz, pout = +10 dbm, 25c 15 20 25 30 35 40 -20 -15 -10 -5 0 normalized gain (db) magnitude (dbm) p1db oip normalized to the maximum gain level of 14 db s- parameters attenuation control voltage = 0 v, 25c 6 8 10 12 14 16 2000 2100 2200 2300 frequency (mhz) gain ( db ) -20 -15 -10 -5 0 5 return loss ( db ) gai n s22 s11 s11, s22, s21 vs gain control voltage frequency = 2140 mhz, 25c -30 -20 -10 0 10 20 012345 gain control voltage (v) ma g nitude ( db ) -30 -20 -10 0 10 normalized gain ( db ) gai n s22 s11 normalized to the maximum gain level of 14 db normalized gain
this document contains information on a new product. specifications and information are subject to change without notice wj communications, inc ? phone 1-800-wj1-4401 ? fax: 408-577-6621 ? e-mail: sales@wj.com ? web site: www.wj.com july 2003 VG111 pcs/umts-band variable gain amplifier product information the communications ed g e tm outline drawing mounting configuration / land pattern product marking the component will be lasermarked with a ?VG111? designator with a four-digit alphanumeric lot code on the top surface of the package. tape and reel specifications for this part will be located on the website in the ?application notes? section. esd / msl information esd classification: class 1b value: passes 600 v test: human body model (hbm) standard: jedec standard jesd22-a114 esd classification: class iv value: passes 1000 v test: charged device model (cdm) standard: jedec standard jesd22-c101 msl rating: level 1 at +250 c convection reflow standard: jedec standard j-std-020b functional pin layout pin function pin function 1 gnd 15 gnd 2 gnd 16 gnd 3 gnd 17 gnd 4 gnd 18 gnd 5 gain control pin 19 n/c 6 gnd 20 gnd 7 n/c 21 n/c 8 gnd 22 gnd 9 gnd 23 gnd 10 gnd 24 gnd 11 rf input 25 rf output / bias 12 gnd 26 gnd 13 gnd 27 gnd 14 gnd 28 gnd
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