Product Description The TGA98-SM is a packaged Ku-band amplifier fabricated on Qorvo s 0.15 um GaN on SiC production process (QGaN15). Operating over a 13 18 GHz bandwidth, the TGA98-SM delivers 2W of saturated output power with db large signal gain and > % power-added efficiency. This, along with > db small signal gain allows it to support a variety of low power Kuband systems or as a linear, high-voltage driver for Qorvo s line of high power Ku-band amplifiers. Packaged in a 4 x 4 air-cavity QFN package for high performance and easy handling, the is fully matched to 50 ohms with integrated DC blocking capacitors on both I/O ports for simple system integration. This makes for an ideal general purpose RF amplifier which can provide needed functionality across both commercial and defense related markets. Lead free and RoHS compliant. Evaluation Boards are available upon request. Product Features Frequency Range: 13 18 GHz PSAT: 33 dbm at PIN = 13 dbm PAE: % at PIN = 13 dbm Small Signal Gain: db Input Return Loss: > 7 db Output Return Loss: > 13 db Bias: VD = + V, IDQ = 70 ma, VG = 2.7 V Typical Package Dimensions: 4.0 x 4.0 x 1.74 mm Performance under CW operation Performance is typical across frequency. Please reference electrical specification table and data plots for more details. Functional Block Diagram Applications 1 14 13 12 11 10 Satellite Communications Data Links Radar General Purpose RF IN 2 9 RF OUT 3 8 4 5 6 7 Ordering Information Part No. ECC N Description EAR99 Rev. B Sept. 28, 16-1 of 14 - www.qorvo.com
Electrical Specifications Parameter Freq. (GHz) Min Typ Max Units Operational Frequency Range 13 18 GHz Small Signal Gain db Input Return Loss > 7 db Output Return Loss > 13 db 13 31 32.5 Output Power at PIN = 13 dbm 14, 15, 16, 17 32.5 34 dbm 18 31.5 33 13 16 22 Power Added Efficiency at PIN = 13 dbm 14, 15, 16, 17 19 28 % 18 17 23 Large Signal Gain at PIN = 13 dbm > db IM3 (Pout/tone = 24 dbm, 1 MHz spacing) 31 dbc IM5 (Pout/tone = 24 dbm, 1 MHz spacing) 46 dbc Small Signal Gain Temperature Coefficient 0.07 db/ C Output Power Temperature Coefficient - at PIN = 0 dbm - at PIN = 12 dbm 0.04 0.01 db/ C Test conditions unless otherwise noted: C, VD = + V, IDQ = 70 ma, VG = 2.7 V Typ, CW Recommended Operating Conditions Parameter Value / Range Drain Voltage (VD) CW - 22 V Drain Current (IDQ) 70 ma Drain Current Under RF Drive (ID_DRIVE) See plots p. 7 Gate Voltage (VG) 2.7 V (Typ.) Gate Current Under RF Drive (IG_DRIVE) See plots p. 7 Temperature (TBASE) 40 to 85 C Electrical specifications are measured at specified test conditions. Specifications are not guaranteed over all recommended operating conditions. Rev. B Sept. 28, 16-2 of 14 - www.qorvo.com
S11 (db) S22 (db) S21 (db) S21 (db) S21 (db) Typical Performance Small Signal Conditions unless otherwise specified: VD = + V, IDQ = 70 ma, VG = 2.7 V Typ, CW 28 Gain vs. Frequency vs. Drain Voltage Gain vs. Frequency vs. Drain Current 28 26 26 24 24 22 22V V 18V 16 V 22 50 ma 70 ma 90 ma 18 40 Gain vs. Frequency vs. Temperature 15-40 C C 85 C 10 0 IRL vs. Frequency vs. Temperature 0 ORL vs. Frequency vs. Temperature -5-5 -10-10 -15-15 - -40 C - C 85 C - - -40 C - C 85 C - Rev. B Sept. 28, 16-3 of 14 - www.qorvo.com
Output Power (dbm) Power Added Efficieny (%) Output Power (dbm) Power Added Efficiency (%) Output Power (dbm) Power Added Efficiency (%) Performance Plots Large Signal Conditions unless otherwise specified: VD = + V, IDQ = 70 ma, VG = 2.7 V Typ, CW Output Power vs. Frequency vs. V D, Pin = 13 dbm 40 PAE vs. Frequency vs. V D, Pin = 13 dbm 34 33 32 31 16 V 18 V V 22 V 16 V 18 V V 22 V 15 34 33 32 31 29 28 27 26 24 23 22 Output Power vs. Frequency vs. P IN 0 dbm 6 dbm 12 dbm 15 dbm 40 PAE vs. Frequency vs. P IN 15 10 0 dbm 6 dbm 12 dbm 15 dbm 5 Output Power vs. Frequency vs. Temp. P in = 13 dbm 40 P in = 13 dbm PAE vs. Frequency vs. Temp. 34 33 32 31-40 C C 85 C -40 C C 85 C 15 Rev. B Sept. 28, 16-4 of 14 - www.qorvo.com
Gain (db) Gain (db) Output Power (dbm) Power Added Efficiency (%) Output Power (dbm) Power Added Efficiency (%) Typical Performance Large Signal Conditions unless otherwise specified: VD = + V, IDQ = 70 ma, VG = 2.7 V Typ, CW 33 Output Power vs. Input Power vs. Freq. 40 PAE vs. Input Power vs. Freq. 31 29 27 13 GHz 14 GHz 23 15 GHz 16 GHz 21 17 GHz 18 GHz 19-5 -3-1 1 3 5 7 9 11 13 15 Input Power (dbm) 13 GHz 15 14 GHz 10 15 GHz 16 GHz 5 17 GHz 18 GHz 0-5 -3-1 1 3 5 7 9 11 13 15 Input Power (dbm) Output Power vs. Freq. vs. Drain Current, P in = 13 dbm 40 PAE vs. Freq. vs. Drain Current, P in = 13 dbm 34 33 32 31 ma 50 ma 70 ma 90 ma 1 ma 150 ma 29 ma 50 ma 70 ma 90 ma 1 ma 150 ma 15 28 26 24 Power Gain vs. Input Power vs. Freq. 23 22 21 Power Gain vs. Frequency vs. V D, Pin = 13 dbm 22 13 GHz 18 14 GHz 15 GHz 16 16 GHz 14 17 GHz 18 GHz 12-5 -3-1 1 3 5 7 9 11 13 15 Input Power (dbm) 19 18 17 16 V 18 V V 22 V 16 Rev. B Sept. 28, 16-5 of 14 - www.qorvo.com
Drain Current (ma) Gate Current (ma) Drain Current (ma) Gate Current (ma) Drain Current (ma) Gate Current (ma) Typical Performance Large Signal Conditions unless otherwise specified: VD = + V, IDQ = 70 ma, VG = 2.7 V Typ, CW 450 4 410 390 370 0 3 310 290 Drain Current vs. Frequency vs. Temp. P in = 13 dbm 270-40 C C 85 C 0 500 450 400 0 0 Drain Current vs. Input Power vs. Freq. 0 0 13 GHz 14 GHz 150 15 GHz 100 16 GHz 50 17 GHz 18 GHz 0-5 -3-1 1 3 5 7 9 11 13 15 Input Power (dbm) 2.00 1.80 Gate Current vs. Frequency vs. Temp. P in = 12 dbm 1.60 1.40 1. 1.00 0.80 0.60 0.40 0. 0.00-0. -40 C C 85 C -0.40 Gate Current vs. Input Power vs. Freq. 0. 0.15 0.10 0.05 0.00-0.05-0.10-0.15 13 GHz 14 GHz 15 GHz 16 GHz 17 GHz 18 GHz -0. -5-3 -1 1 3 5 7 9 11 13 15 Input Power (dbm) 500 450 Drain Current vs. Frequency vs. P IN 0. 0.15 0.10 Gate Current vs. Frequency vs. P IN 400 0.05 0.00 0-0.05 0 12 dbm 13 dbm 14 dbm 15 dbm 0-0.10-0.15 12 dbm 13 dbm 14 dbm 15 dbm -0. Rev. B Sept. 28, 16-6 of 14 - www.qorvo.com
IM3 (dbc) IM5 (dbc) Typical Performance Linearity Conditions unless otherwise specified: VD = + V, IDQ = 70 ma, VG = 2.7 V Typ, CW; harmonic data from die version -10-15 IM3 vs. Output Power vs. Frequency 1 MHz Tone Spacing, - - IM5 vs. Output Power vs. Frequency 1 MHz Tone Spacing, - - - - - - -40-40 -45-45 13 GHz 15.5 GHz 18GHz -50 16 18 22 24 26 28 32 Output Power per Tone (dbm) -50 13 GHz 15.5 GHz 18GHz -55 16 18 22 24 26 28 32 Output Power per Tone (dbm) Rev. B Sept. 28, 16-7 of 14 - www.qorvo.com
Median Lifetime, T M (Hours) P DISS (W) Thermal and Reliability Information Parameter Test Conditions Value Units Thermal Resistance (θjc) (1) 10.0 C/W TBASE = 85 C, VD = + V (CW) Channel Temperature (TCH) (Quiescent) 99 C At IDQ = 70 ma, PDISS = 1.4 W Median Lifetime (TM) 3.5 x 10^15 Hrs Thermal Resistance (θjc) (1) TBASE = 85 C, VD = + V (CW) 13.8 C/W Channel Temperature (TCH) (Under RF drive) At Freq = 17 GHz, IDQ = 70 ma, 121 C Median Lifetime (TM) POUT = 27 dbm, PDISS = 2.6 W 7.7 x 10^13 Hrs Thermal Resistance (θjc) (1) TBASE = 85 C, VD = + V (CW) 14.9 C/W Channel Temperature (TCH) (Under RF drive) At Freq = 17 GHz, IDQ = 70 ma, 164 C Median Lifetime (TM) POUT = 33.5 dbm, PDISS = 5.3 W 1.3 x 10^11 Hrs Notes: 1. Thermal resistance measured to back of package. Median Lifetime Test Conditions: VD = +28 V; Failure Criteria = 10 % reduction in ID_MAX during DC Life Testing 1E+15 1E+14 1E+13 1E+12 1E+11 1E+10 1E+09 1E+08 1E+07 1E+06 1E+05 FET16 (QGaN15) Median Lifetime vs. T CH 1E+04 75 100 1 150 175 0 2 0 275 Channel Temperature, T CH ( C) 8 Dissipated Power vs. Freq. vs. Temp. Pin = 13 dbm, CW 7 6 5 4 3-40 C C 85 C 2 Rev. B Sept. 28, 16-8 of 14 - www.qorvo.com
Application Circuit V G12 R1 5.1 Ω R4 0 Ω V G3 R2 5.1 Ω C2 10 uf R5 0 Ω C5 0.01 uf 14 13 12 11 R6 0 Ω C6 0.01 uf R3 5.1 Ω C3 10 uf V D C1 10 uf C4 0.01 uf 1 10 RF IN 2 9 RF OUT 3 8 4 5 6 7 Bias Up Procedure 1. Set ID limit to 500 A, IG limit to 13 ma 2. Apply 5 V to VG 3. Apply + V to VD; ensure IDQ is approx. 0 ma 4. Adjust VG until IDQ = 70 ma (VG ~ 2.7 V Typ.). 5. Turn on RF signal generator Bias Down Procedure 1. Turn off RF signal generator 2. Reduce VG to 5 V; ensure IDQ is approx. 0 ma 3. Set VD to 0 V 4. Turn off VD supply 5. Turn off VG supply Rev. B Sept. 28, 16-9 of 14 - www.qorvo.com
Evaluation Board VG12 VG3 VD GND GND GND Mounting pad detail Component placement RF Layer is 0.008 thick Rogers Corp. RO4003C, εr = 3.38. Metal layers are 0.5 oz. copper. The microstrip line at the connector interface is optimized for the Southwest Microwave end launch connector 1092-01A-5. The trace pattern shown has been developed and tested for optimized assembly at TriQuint Semiconductor. The PCB land pattern has been developed to accommodate lead tolerances. Since processes vary from company to company, careful process development is recommended. Bill of Materials Reference Des. Value Description Manuf. Part Number C1, C2, C3 10 µf Cap., 16, +50 V, %, X5R Various C4, C5, C6 0.01 µf Cap., 0402, +50 V, 10 %, X7R Various R1, R2, R3 5.1 Ohms Res., 0402, 5 %, SMD Various R4, R5, R6 0.0 Ohms Res., 0402, 5 %, SMD Various Rev. B Sept. 28, 16-10 of 14 - www.qorvo.com
Mechanical Information 10 9 8 11 12 13 14 7 6 5 4 1 2 3 Units: inches Tolerances: unless specified x.xx = 0.01 x.xxx = 0.005 Marking: 2958: Part number YY: Part Assembly year WW: Part Assembly week MXXX: Batch ID Pad Description Pad No. Symbol Description 1, 3, 8, 10 GND RF Ground 2 RFIN RF Input; matched to 50 Ω; DC blocked 4, 5, 6, 7, 12 NC No connection inside package; pads can be grounded if desired 9 RFOUT RF Output; matched to 50 Ω; DC blocked 11 VD Drain voltage; Bias network is required; see recommended Application Information 13 VG3 (1) Gate Voltage; Bias network is required; see recommended Application Information 14 VG12 (1) Gate Voltage; Bias network is required; see recommended Application Information Notes: 1. Pads 13 & 14 may be tied together for biasing Rev. B Sept. 28, 16-11 of 14 - www.qorvo.com
Recommended Soldering Temperature Profile Rev. B Sept. 28, 16-12 of 14 - www.qorvo.com
Maximum Gate Current (ma) Absolute Maximum Ratings Parameter Drain Voltage (VD) Gate Voltage Range (VG) Drain Current common drain - 1 st Stage (ID1) - 2 nd Stage (ID2) - 3 rd Stage (ID3) Forward Gate Current (IG) Power Dissipation (PDISS), 85 C Input Power (PIN), CW, 50 Ω, VD = +22 V, IDQ = 70 ma, 85 C Input Power (PIN), CW, VSWR 3:1, VD = +22 V, IDQ = 70 ma, 85 C Value / Range 29.5 V 8 to 0 V 576 ma 72 ma 192 ma 384 ma See IG_MAX plot 13 W 27 dbm dbm Channel Temperature (TCH) 275 C Storage Temperature 55 to 150 C Operation of this device outside the parameter ranges given above may cause permanent damage. These are stress ratings only, and functional operation of the device at these conditions is not implied. I G_MAX vs. T CH vs. Stage Total Ig_max Stage1 Stage2/Stage3 15 10 5 0 1 1 145 155 165 175 185 195 5 215 2 Channel Temperature ( C) Rev. B Sept. 28, 16-13 of 14 - www.qorvo.com
Handling Precautions Parameter Rating Standard ESD Human Body Model (HBM) Class 1A ANSI/ESD/JEDEC JS-001, TA=ºC ESD Charge Device Model (CDM) Class C3 ANSI /ESD/JEDEC JS-002, TA=ºC Caution! ESD-Sensitive Device MSL Convection Reflow 260 C MSL 3 IPC/JEDEC J-STD-0, Classification Tb=260ºC Solderability Compatible with the latest version of J-STD-0, Lead-free solder, 260 C RoHS Compliance This product is compliant with the 11/65/EU RoHS directive (Restrictions on the Use of Certain Hazardous Substances in Electrical and Electronic Equipment), as amended by Directive 15/863/EU. This product also has the following attributes: Lead Free Halogen Free (Chlorine, Bromine) Antimony Free TBBP-A (C15H12Br402) Free Pb PFOS Free SVHC Free Contact Information For the latest specifications, additional product information, worldwide sales and distribution locations, and information about Qorvo: Web: www.qorvo.com Tel: +1.972.994.8465 Email: info-sales@qorvo.com Fax: +1.972.994.8504 For technical questions and application information: Email: info-products@qorvo.com Important Notice The information contained herein is believed to be reliable. Qorvo makes no warranties regarding the information contained herein. Qorvo assumes no responsibility or liability whatsoever for any of the information contained herein. Qorvo assumes no responsibility or liability whatsoever for the use of the information contained herein. The information contained herein is provided "AS IS, WHERE IS" and with all faults, and the entire risk associated with such information is entirely with the user. All information contained herein is subject to change without notice. Customers should obtain and verify the latest relevant information before placing orders for Qorvo products. The information contained herein or any use of such information does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other intellectual property rights, whether with regard to such information itself or anything described by such information. Qorvo products are not warranted or authorized for use as critical components in medical, life-saving, or life-sustaining applications, or other applications where a failure would reasonably be expected to cause severe personal injury or death. Rev. B Sept. 28, 16-14 of 14 - www.qorvo.com