CHA4693-QGG RoHS COMPLIANT 17-27GHz Variable Gain Amplifier GaAs Monolithic Microwave IC in SMD package Description UMS A4693 YYWW The CHA4693-QGG is a variable gain broadband three-stage monolithic amplifier. It is designed for a wide range of applications, typically commercial communication systems. The circuit is manufactured with a power pHEMT process, 0.15µm gate length, via holes through the substrate and air bridges. Vd1, Vd2 RFin RFout It is available in lead-free SMD package. Gc1 Vg12 Gc2 Main Features Gc3 Vg3 On board measurements 24 ■ Broadband performance 17-27GHz 20 Linear Gain (dB) ■ 20dB gain ■ 28dBm output IP3 @ gain max ■ 24dB gain control range ■ 28L-QFN5x5 ■ ESD protected (see page 14) 16 12 8 4 0 -4 -8 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Frequency (GHz) Main Characteristics Tamb. = 25°C, Vd = 4.5V Symbol Fop Parameter Min Operating frequency range Typ 17 Max Unit 27 GHz G Small signal gain 20 dB Gc Gain control range 24 dB Output Intercept Point order 3 @ gain max. 28 dBm OIP3 ESD Protection: Electrostatic discharge sensitive device. Observe handling precautions! Ref. : DSCHA4693-QGG8144 - 23 May 08 1/16 Specifications subject to change without notice United Monolithic Semiconductors S.A.S. Route Départementale 128 - BP46 - 91401 Orsay Cedex France Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09 CHA4693-QGG 17-27GHz Variable Gain Amplifier Electrical Characteristics Tamb. = 25°C, Vd 1,2 = 4.5V, GcX with X=1,2,3 Symbol Parameter Min Typ Unit 27 GHz Fop Operating frequency range G Nominal gain @ gain max. 20 dB NF Noise Figure @ gain max. 7.5 dB Noise Figure @ gain min. 24 dB Input Return Loss (Fop<21GHz) (any GcX) -9 dB Input Return Loss (Fop>21GHz) (any GcX) -12 dB Output Return Loss (Fop<21GHz) (any GcX) -9 dB Output Return Loss (Fop>21GHz) (any GcX) -12 dB Output 3rd order Intercept Point @ gain max. 28 dBm Output 3rd order Intercept Point @ gain min. 19 dBm Output Power at 1dB gain compression @ gain max. 22 dBm Gain control range (Fop<20GHz) 22 dB Gain control range (Fop>20GHz) 24 dB DC drain voltage 4.5 V Id Drain bias quiescent current (*) 250 mA Idc Drain current at 1dB gain compression 300 mA Vg12,3 Gate bias voltage -1.2 V GcX DC gain control voltage RLin RLout OIP3 P1dB Gc Vd1,2 17 Max -2 +0,6 V (*) Id not affected by GcX. These values are representative of on board measurements as defined on the drawing 97365 (see page 16). Ref. : DSCHA4693-QGG8144 - 23 May 08 2/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax: +33 (0)1 69 33 03 09 Specifications subject to change without notice 17-27GHz Variable Gain Amplifier CHA4693-QGG Absolute Maximum Ratings (*) Tamb = +25°C Symbol Vd1,2 Parameter Drain bias voltage Id Power supply quiescent current Vg Gate bias voltage Values Unit 5 V 300 mA -2 to 0 V -2.5 to +1 V GcX DC gain control voltage Pin RF input power @ gain max. 8 dBm Top Operating temperature range -40 to +85 °C 175 °C -55 to +125 °C Tj Tstg Junction temperature Storage temperature range (*) Operation of this device above anyone of these parameters may cause permanent damage. Ref: DSCHA4693-QGG8144 - 23 May 08 3/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Device thermal performances: All the figures given in this section are obtained assuming that the QFN device is cooled down only by conduction through the package thermal pad (no convection mode considered). The temperature is monitored at the package back side side interface (Tcase) as shown below. The system maximum temperature must be adjusted in order to guarantee that Tcase remains below than the maximum value specified in the next table. So, the system PCB must be designed to comply with this requirement. A derating must be applied on the dissipated power if the Tcase temperature can not be maintened below than the maximum temperature specified in order to guarantee the nominal device life time (MTTF) (see the curve Pdis. Max). DEVICE THERMAL SPECIFICATION : CHA4693-QGG Max. junction temperature (Tj max) : 169 °C Max. continuous dissipated power @ Tcase= 85 °C : 1,1 W => Pdiss derating above Tcase= 85 °C : 13 mW /°C Junction-Case thermal resistance (Rth J-C)* : <74 °C/W Min. package back side operating temperature** : -40 °C Max. package back side operating temperature** : 85 °C Min. storage temperature : -55 °C Max. storage temperature : 125 °C *Rth J-C is calculated is a worst case where the hotter junction of the MMIC is considered. **Tcase=Package back side temperature measured under the die-attach-pad. Tcase 1,2 1 0,6 0,4 0,2 Pdiss. Max. (W) Pdiss. Max. (W) 0,8 Example of QFN 16L 3x3 back-side view, temperature reference point (Tcase) location. 0 -50 -25 0 25 50 75 100 125 Tcase (°C) Ref. : DSCHA4693-QGG8144 - 23 May 08 4/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax: +33 (0)1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Typical Measured Performance Tamb. = +25°C, Vd 1,2 = +4.5V, Vg12,3 tuned for Id = 250mA Measurements in the package access planes, using the proposed land pattern & board 97365, as defined page 16. Linear Gain versus Frequency 24 20 GcX=-2.0V Linear Gain (dB) 16 GcX=-1.0V 12 GcX=-0.9V 8 4 GcX=-0.8V 0 GcX=-0.7V GcX=-0.6V GcX=-0.4V -4 GcX=+0.6V -8 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Frequency (GHz) Linear Gain versus Gain Control Voltage 24 20 Linear Gain (dB) 16 12 8 4 0 Freq=17GHz Freq=27GHz Freq=22GHz -4 -8 -2,0 -1,8 -1,6 -1,4 -1,2 -1,0 -0,8 -0,6 -0,4 -0,2 0,0 0,2 0,4 0,6 Gain Control Voltage (V) Ref: DSCHA4693-QGG8144 - 23 May 08 5/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Gain Control Range (dB) Gain Control Range versus Frequency 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 28 29 Frequency (GHz) Return Losses (dB) Return Losses versus Frequency and Gain Control Voltage 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 S22 S11 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Frequency (GHz) Ref. : DSCHA4693-QGG8144 - 23 May 08 6/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax: +33 (0)1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Typical Package Sij parameters for Gc1, Gc2, Gc3 = -2.0V Tamb. = +25°C, Vd 1,2 = +4.5V, Id = 250mA Freq (GHz) 2,0 3,0 4,0 5,0 6,0 7,0 8,0 9,0 10,0 11,0 12,0 13,0 14,0 15,0 16,0 17,0 17,5 18,0 18,5 19,0 19,5 20,0 20,5 21,0 21,5 22,0 22,5 23,0 23,5 24,0 24,5 25,0 25,5 26,0 26,5 27,0 28,0 29,0 30,0 31,0 32,0 33,0 34,0 35,0 36,0 37,0 38,0 39,0 40,0 dB(S11) -1,6 -3,2 -6,8 -11,6 -11,1 -9,6 -8,0 -7,6 -8,0 -7,4 -7,8 -7,1 -7,8 -9,0 -13,1 -13,3 -11,2 -9,6 -8,8 -8,4 -8,9 -9,7 -9,6 -10,6 -11,8 -13,3 -14,9 -17,2 -18,3 -18,5 -19,7 -20,3 -18,4 -17,3 -18,1 -23,1 -25,6 -24,7 -15,8 -9,0 -6,3 -3,7 -2,6 -1,4 -1,7 0,4 -0,1 -0,1 -1,1 Ph(S11) (°) 105 55 -11 -104 173 125 93 58 23 -10 -47 -78 -109 -134 -152 -132 -128 -133 -146 -158 -169 179 174 161 150 137 134 139 134 130 132 119 102 81 52 32 23 36 15 -28 -90 -134 -169 164 138 127 109 95 82 dB(S12) -62,6 -64,1 -84,6 -75,6 -69,7 -62,7 -62,1 -63,1 -64,2 -64,7 -64,2 -70,6 -57,9 -50,7 -51,1 -52,8 -52,4 -53,6 -53,7 -53,0 -55,7 -54,9 -58,8 -60,3 -56,0 -54,6 -54,3 -55,6 -54,2 -52,0 -48,1 -46,1 -45,0 -43,5 -43,4 -43,1 -39,4 -40,6 -40,1 -38,5 -36,1 -36,4 -40,1 -42,7 -46,8 -55,8 -46,0 -48,7 -50,9 Ph(S12) (°) -93 -151 64 162 66 56 5 -28 -90 -128 176 -173 163 110 57 36 28 19 12 0 -2 -9 -29 16 32 3 1 18 17 33 23 15 -7 -7 -21 -35 -54 -72 -91 -111 -131 -167 157 139 119 -165 143 135 90 dB(S2 1) -35,2 -26,3 -35,7 -29,5 -16,8 -11,8 -6,5 -3,1 -0,5 3,5 7,0 12,6 18,2 22,0 21,1 20,8 20,7 20,5 20,4 20,5 20,6 20,6 20,7 20,7 20,5 20,3 20,0 19,9 19,8 19,8 19,7 20,0 20,1 20,4 20,8 21,1 21,2 17,8 9,8 0,8 -10,4 -20,6 -29,4 -37,1 -43,1 -52,9 -43,0 -48,2 -50,0 Ph(S21) (°) -166 -30 -141 51 -70 -167 121 50 -16 -72 -133 167 92 -5 -99 -173 152 118 84 49 13 -24 -58 -94 -131 -167 157 122 86 47 13 -25 -64 -104 -148 167 60 -61 -178 86 -5 -85 -161 146 97 152 117 144 57 dB(S22) -10,7 -6,2 -1,8 -1,9 -2,7 -4,0 -6,5 -10,3 -14,5 -14,9 -14,5 -13,2 -11,3 -9,2 -9,8 -9,4 -9,5 -9,5 -9,6 -9,8 -10,3 -11,0 -11,2 -11,3 -11,4 -12,0 -12,5 -12,7 -12,9 -13,5 -13,9 -14,6 -16,1 -17,4 -18,9 -19,8 -23,3 -20,5 -18,3 -15,5 -13,1 -10,5 -7,8 -5,5 -4,1 -2,3 -1,1 -0,5 -0,6 Ph(S22) (°) 74 152 109 74 40 7 -26 -50 -61 -57 -64 -71 -78 -100 -119 -132 -139 -144 -151 -159 -165 -172 -176 -179 174 168 162 154 145 132 121 102 86 75 53 23 -37 -44 -103 -122 -149 -167 178 160 142 128 112 99 87 Refer to the “definition of the Sij reference planes” section below. Ref: DSCHA4693-QGG8144 - 23 May 08 7/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Typical Measured Performance Tamb. = +25°C, Vd 1,2 = +4.5V, Vg12,3 tuned for Id = 250mA Measurements in the plan of the connectors (losses not deembeded), using the proposed land pattern & board 97365, as defined page 16. Linear Gain versus Frequency and Temperature 24 20 Linear Gain (dB) 16 GcX=-2.0V 12 -40°C +25°C 8 4 GcX=-0.9V 0 +75°C -4 -8 -12 GcX=+0.6V -16 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Frequency (GHz) Gain Control Range per stage versus Frequency (with GcX=+0.6V) 16 14 Gain Control Range (dB) Stage 3 12 10 8 Stage 1 6 4 Stage 2 2 0 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Frequency (GHz) Ref. : DSCHA4693-QGG8144 - 23 May 08 8/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax: +33 (0)1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Noise Figure versus Gain Control Voltage @ 25°C 28 26 Freq=22GHz 24 Freq=27GHz Noise Figure (dB) 22 20 18 16 Freq=17GHz 14 12 10 8 6 4 2 0 -2,0 -1,8 -1,6 -1,4 -1,2 -1,0 -0,8 -0,6 -0,4 -0,2 0,0 0,2 0,4 0,6 Gain Control Voltage (V) Noise Figure (dB) Noise Figure versus Frequency and Temperature 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 GcX=+0.6V +75°C +25°C GcX=-0.9V -40°C GcX=-2.0V 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Frequency (GHz) Ref: DSCHA4693-QGG8144 - 23 May 08 9/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Output IP3 versus Dual Carrier Output Power and Temperature @ 17GHz 36 32 GcX=-2V 24 GcX=-0.9V 20 GcX=0V 16 -40°C +25°C +75°C 12 8 4 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 Dual Carrier Output Power (dBm) Output IP3 versus Dual Carrier Output Power and Temperature @ 21GHz 36 32 GcX=-2V 28 Output IP3 (dBm) 24 GcX=-0.9V 20 GcX=0V 16 -40°C +25°C +75°C 12 8 4 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 Dual Carrier Output Power (dBm) Output IP3 versus Dual Carrier Output Power and Temperature @ 27GHz 36 32 GcX=-2V 28 Output IP3 (dBm) Output IP3 (dBm) 28 24 GcX=-0.9V 20 16 GcX=0V -40°C +25°C +75°C 12 8 4 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 Dual Carrier Output Power (dBm) Ref. : DSCHA4693-QGG8144 - 23 May 08 10/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax: +33 (0)1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Note: To decrease Noise or OIP3 variation versus gain control, it is possible to bias separately the 3 gain control voltages, Gc1, Gc2, Gc3. To limit Noise figure variation, keep Gc1 at -2V To limit OIP3 variation, keep Gc3 at -2V Output Power at 1dB Gain Compression versus Frequency and Temperature for GcX=-2V 26 +25°C Output Power at 1dB Gain Compression (dBm) 24 -40°C 22 +75°C 20 18 16 14 12 10 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Frequency (GHz) Ref: DSCHA4693-QGG8144 - 23 May 08 11/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Gain and Output Power versus Input Power and Temperature @ 17.5GHz GcX=-2V 22 18 14 GcX=-0.9V 10 6 2 -2 -40°C +25°C +75°C -6 -10 -24 -20 -16 -12 -8 -4 0 4 8 12 16 20 Input Power (dBm) Gain and Output Power versus Input Power and Temperature @ 22GHz 26 Gain (dB) and Output Power (dBm) GcX=-2V 22 18 14 GcX=-0.9V 10 6 2 -2 -40°C +25°C +75°C -6 -10 -24 -20 -16 -12 -8 -4 0 4 8 12 16 20 Input Power (dBm) Gain and Output Power versus Input Power and Temperature @ 26.5GHz 26 Gain (dB) and Output Power (dBm) Gain (dB) and Output Power (dBm) 26 GcX=-2V 22 18 14 GcX=-0.9V 10 6 2 -2 -40°C +25°C +75°C -6 -10 -24 -20 -16 -12 -8 -4 0 4 8 12 16 20 Input Power (dBm) Ref. : DSCHA4693-QGG8144 - 23 May 08 12/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax: +33 (0)1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Package outline It is recommended to ground the pin #22 through the PCB board. Note Ref: DSCHA4693-QGG8144 - 23 May 08 13/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Due to ESD protection circuits on RF input and output, an external capacitance might be requested to isolate the product from external voltage that could be present on the RF accesses. 12 24 Vd1, Vd2 RFin RFout 2 17 Gc1 Vg12 Gc2 Gc3 Vg3 8 27 9 14 26 ESD protections are implemented on each gate accesses. The DC connections do not include any decoupling capacitor in package, therefore it is mandatory to provide a good external DC decoupling on the PC board, as close as possible to the package. Definition of the Sij reference planes The reference planes are defined from the footprint of the recommended characterization board 97365 shown below. The reference is the symmetrical axis of the package. The input and output reference planes are located at 3.66mm offset (input wise and output wise respectively) from this axis. Then, the given Sij incorporates this land pattern. Ref. : DSCHA4693-QGG8144 - 23 May 08 14/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax: +33 (0)1 69 33 03 09 Specifications subject to change without notice 17-27GHz Variable Gain Amplifier CHA4693-QGG Recommended footprint for 28L-QFN5X5 Unit: mm SMD mounting procedure The SMD leadless package has been designed for high volume surface mount PCB assembly process. The dimensions and footprint required for the PCB (motherboard) are given in the drawing above. For the mounting process standard techniques involving solder paste and a suitable reflow process can be used. For further details, see application note AN0017. Ref. : DSCHA4693-QGG8144 - 23 May 08 15/16 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice CHA4693-QGG 17-27GHz Variable Gain Amplifier Proposed Assembly board “97365” for the 28L-QFN5x5 products characterization. - Compatible with the proposed footprint. Based on typically Ro4003 / 8mils or equivalent. Using a microstrip to coplanar transition to access the package. Recommended for the implementation of this product on a module board. Vg1,2 Vg3 Gc1 Gc2 Vd Vd Gc3 Decoupling capacitors of 10nF ±10% are recommended for all DC accesses. Ordering Information QFN 5x5 RoHS compliant package: CHA4693-QGG/XY Stick: XY = 20 Tape & reel: XY = 21 Information furnished is believed to be accurate and reliable. However United Monolithic Semiconductors S.A.S. assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of United Monolithic Semiconductors S.A.S.. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. United Monolithic Semiconductors S.A.S. products are not authorised for use as critical components in life support devices or systems without express written approval from United Monolithic Semiconductors S.A.S. Ref. : DSCHA4693-QGG8144 - 23 May 08 16/16 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax: +33 (0)1 69 33 03 09 Specifications subject to change without notice