CHT4660-QAG RoHS COMPLIANT DC-16GHz Attenuator GaAs Monolithic Microwave IC in SMD leadless package Description The CHT4660-QAG is a DC-16GHz variable attenuator designed for a wide range of applications, from military to commercial communication systems. The circuit is manufactured with a MESFET process, 0.7µm gate length, via holes through the substrate and air bridges. UMS T4660 YYWW It is supplied in lead-free package. Attenuation versus frequency & V1, V2 Main Features ■ Broadband performance: DC-16GHz ■ 24dBm typical input 1dB compression point (any attenuation) ■ 30dB dynamic range ■ DC bias: -5V<V1<0V; -5V<V2<0V ■ Package type: 16L-QFN3x3 ■ MSL 1 Main Characteristics Tamb = +25°C Symbol Parameter Min Typ DC Max Unit 16 GHz Fin Input frequency range Min Att. |S21| (V1=-5V;V2=-5V) 2 dB Max Att. |S21| (V1=0V;V2=0V) 32 dB Pin1dB Input 1dB compression point (any attenuation) 24 dBm ESD Protections: Electrostatic discharge sensitive device observe handling precautions! Ref: DSCHT4660QAG0211- 30 Jul 2010 1/18 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 DC-16GHz Attenuator CHT4660-QAG Electrical Characteristics Tamb = +25°C Symbol Fin Min Att. Parameter Min Input frequency range DC RLout IIP3 Unit 16 GHz 1 2 dB |S21| (V1=-5V;V2=-5V) (4 to 20GHz) 2 3 dB 15 17 dB |S21| (V1=0V;V2=0V) (2 to 4GHz) 18 20 dB |S21| (V1=0V;V2=0V) (4 to 9GHz) 24 26 dB |S21| (V1=0V;V2=0V) (9 to 16GHz) 30 32 dB Input return loss (any att.) (DC to 4GHz) -2 -1 dB Input return loss (any att.) (4 to 7GHz) -6 -5 dB Input return loss (any att.) (7 to 16GHz) -8 -7 dB Output return loss (any att.) (DC to 4GHz) -2 -1 dB Output return loss (any att.) (4 to 7GHz) -6 -5 dB Output return loss (any att.) (7 to 16GHz) -10 -9 dB Pin1dB Input 1dB compression (any att.) (DC to 4GHz) C/I3 Max |S21| (V1=-5V;V2=-5V) (DC to 4GHz) Max Att. |S21| (V1=0V;V2=0V) (DC to 2GHz) RLin Typ 20 21 dBm Input 1dB compression (any att.) (4 to 16GHz) 23 24 dBm C/I3@Pin/tone=0 dBm (any att.) (DC to 4GHz) 50 53 dB C/I3@Pin/tone=0 dBm (any att.) (4 to 16GHz) 52 55 dB IIP3 (any att.) (DC to 4GHz) 22 24 dB IIP3 (any att.) (4 to 16GHz) 23 25 dB V1, V2 Voltage control range -5 0 V These values are representative of onboard measurements as defined on the drawing paragraph “Evaluation mother board”. Ref : DSCHT4660QAG0211- 30 Jul 2010 2/18 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 DC-16GHz Attenuator CHT4660-QAG Absolute Maximum Ratings (1) Tamb = +25°C Symbol Parameter Values Unit V1 V1 control voltage -6V to +0.6V V V2 V2 control voltage -6V to +0.6V V Pin RF input power 30 dBm Ta Operating temperature range (reference on ground paddle) -40 to +85 °C Tstg Storage temperature range -55 to +155 °C (1) Operation of this device above anyone of these parameters may cause permanent damage. Typical biasing conditions Tamb = +25°C Symbol Pin No. Parameter Values Unit V1 6 V1 control voltage -5 to 0 V V2 7 V2 control voltage -5 to 0 V Ref. : DSCHT4660QAG0211- 30 Jul 2010 3/18 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 DC-16GHz Attenuator CHT4660-QAG Typical Package Sij parameters Tamb = +25°C, V1 = -5V & V2= -5V – Minimum attenuat ion Freq 0.1 0.3 0.6 0.8 1.1 1.3 1.6 1.8 2.1 2.3 2.6 2.8 3.1 3.3 3.6 3.8 4.1 4.3 4.6 4.8 5.1 5.6 6.1 6.6 7.1 7.6 8.1 8.6 9.1 9.6 10.1 10.6 11.1 11.6 12.1 12.6 13.1 13.6 14.1 14.6 15.1 15.6 16.1 16.6 17.1 17.6 18.1 18.6 19.1 19.6 dBS11 -37.1 -29.5 -23.6 -20.9 -19.4 -18.5 -18.3 -18.1 -17.6 -17.3 -17.4 -17.2 -18.2 -20.2 -24.0 -30.3 -24.8 -21.7 -21.2 -22.0 -23.0 -37.2 -27.5 -22.5 -21.8 -25.3 -34.5 -42.8 -39.7 -22.7 -16.6 -14.3 -14.8 -19.2 -27.1 -22.9 -20.5 -19.1 -17.5 -17.2 -18.1 -17.8 -16.9 -15.2 -13.3 -12.5 -12.2 -13.1 -17.0 -28.5 PhS11 -179.6 -138.2 -161.5 165.7 132.7 97.0 59.1 21.7 -21.1 -65.1 -104.4 -149.2 170.3 136.6 111.5 127.1 136.4 109.3 76.0 53.0 17.5 -42.6 72.5 15.7 -39.2 -92.0 -137.6 -79.4 54.8 4.7 -51.7 -111.0 -169.5 136.7 129.5 119.9 51.1 -36.2 -119.3 169.7 109.2 54.7 5.5 -41.7 -87.4 -129.1 -172.3 140.3 85.1 -0.5 Ref : DSCHT4660QAG0211- 30 Jul 2010 dBS12 -0.3 -0.4 -0.5 -0.7 -0.8 -1.0 -1.1 -1.3 -1.5 -1.8 -1.9 -2.1 -2.1 -2.2 -2.1 -1.9 -1.7 -1.7 -1.7 -1.7 -1.7 -1.8 -1.9 -2.1 -2.2 -2.2 -2.3 -2.5 -2.7 -2.9 -3.0 -3.3 -3.3 -3.3 -3.3 -3.5 -3.6 -3.7 -3.8 -3.8 -3.8 -3.6 -3.6 -4.0 -3.9 -4.0 -4.0 -4.1 -4.1 -4.1 PhS12 -6.6 -38.4 -69.9 -101.2 -132.2 -163.1 166.0 135.1 104.4 74.5 44.5 15.8 -13.4 -42.8 -72.4 -101.7 -132.6 -164.0 164.8 134.4 103.0 41.3 -20.6 -82.2 -143.6 154.7 92.8 30.7 -31.3 -92.7 -154.1 145.1 84.9 23.1 -38.9 -100.6 -161.7 137.0 75.9 14.9 -46.3 -107.1 -171.2 127.1 65.7 2.7 -58.9 -121.3 176.6 113.2 dBS21 -0.1 -0.2 -0.3 -0.4 -0.6 -0.7 -0.8 -0.9 -1.1 -1.4 -1.6 -1.7 -1.7 -1.7 -1.6 -1.4 -1.3 -1.2 -1.2 -1.2 -1.2 -1.2 -1.3 -1.4 -1.5 -1.6 -1.6 -1.7 -1.9 -2.1 -2.2 -2.4 -2.4 -2.3 -2.3 -2.5 -2.6 -2.6 -2.6 -2.7 -2.6 -2.5 -2.5 -2.8 -2.5 -2.7 -2.7 -2.8 -2.7 -2.6 4/18 Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09 PhS21 -6.6 -38.5 -70.0 -101.3 -132.3 -163.3 165.9 135.1 104.4 74.4 44.3 15.8 -13.5 -42.9 -72.4 -101.8 -132.8 -164.1 164.7 134.2 103.0 41.2 -20.7 -82.2 -143.7 154.4 92.7 30.6 -31.3 -93.0 -154.5 144.8 84.6 23.0 -39.0 -100.9 -161.9 136.8 75.9 14.4 -46.8 -108.4 -171.2 128.1 66.7 2.5 -59.1 -121.3 176.9 113.8 dBS22 -38.2 -30.4 -24.9 -21.7 -20.2 -19.7 -19.8 -20.1 -20.1 -20.9 -21.9 -24.3 -28.0 -28.5 -28.1 -24.7 -24.7 -24.9 -25.6 -28.0 -33.4 -25.2 -18.7 -16.6 -17.1 -19.5 -22.5 -21.8 -18.6 -16.2 -14.5 -14.0 -15.6 -20.6 -24.2 -19.4 -17.0 -16.2 -15.9 -16.5 -18.5 -23.5 -31.2 -26.1 -19.0 -14.7 -12.6 -13.1 -17.2 -22.7 PhS22 -175.6 -142.8 -167.2 162.5 128.2 88.9 51.6 9.4 -35.9 -82.3 -124.1 -174.8 162.0 140.1 139.0 123.8 107.7 91.7 73.2 55.5 57.7 88.6 41.6 -12.3 -69.8 -135.3 140.9 48.6 -15.6 -63.4 -106.9 -154.9 151.2 80.3 -44.4 -136.8 170.4 131.9 94.9 51.6 1.9 -51.3 -137.2 98.4 27.8 -44.0 -111.5 -171.5 141.7 138.9 Specifications subject to change without notice DC-16GHz Attenuator CHT4660-QAG Tamb = +25°C, V1 = 0V & V2= 0V – Maximum attenuatio n Freq 0.1 0.3 0.6 0.8 1.1 1.3 1.6 1.8 2.1 2.3 2.6 2.8 3.1 3.3 3.6 3.8 4.1 4.3 4.6 4.8 5.1 5.6 6.1 6.6 7.1 7.6 8.1 8.6 9.1 9.6 10.1 10.6 11.1 11.6 12.1 12.6 13.1 13.6 14.1 14.6 15.1 15.6 16.1 16.6 17.1 17.6 18.1 18.6 19.1 19.6 dBS11 -1.7 -2.0 -2.3 -2.5 -2.9 -3.2 -3.6 -4.0 -4.3 -4.7 -5.0 -5.4 -5.7 -6.0 -6.3 -6.5 -6.8 -7.1 -7.3 -7.6 -8.0 -8.7 -9.4 -10.2 -10.7 -10.8 -10.5 -10.0 -9.4 -9.0 -8.9 -9.0 -9.5 -10.2 -10.9 -11.3 -11.1 -10.7 -10.3 -10.1 -9.9 -9.8 -9.3 -8.6 -8.1 -7.8 -8.1 -8.7 -9.9 -11.3 PhS11 174.2 145.2 117.1 89.6 61.6 33.8 6.2 -21.4 -49.0 -76.0 -102.6 -128.6 -153.9 -179.0 157.0 133.0 109.3 86.3 63.0 40.0 17.0 -30.0 -78.2 -127.9 179.9 126.9 75.1 25.0 -22.4 -67.8 -112.0 -156.4 157.9 109.7 58.1 3.2 -52.2 -105.6 -157.2 153.0 102.7 51.9 2.1 -47.0 -93.3 -137.3 179.8 136.7 90.2 35.4 dBS12 -15.5 -15.8 -16.2 -16.6 -17.1 -17.6 -18.2 -18.7 -19.3 -20.0 -20.8 -21.6 -22.4 -23.3 -24.0 -24.6 -25.3 -25.8 -26.3 -26.9 -27.2 -28.1 -28.9 -29.8 -30.6 -31.4 -32.1 -32.8 -33.5 -33.8 -34.0 -33.9 -33.7 -33.6 -33.4 -33.2 -33.5 -33.4 -33.6 -33.9 -34.3 -34.9 -35.0 -35.2 -35.5 -35.7 -35.4 -35.4 -36.1 -37.0 PhS12 -7.7 -44.7 -80.5 -115.4 -150.0 175.9 142.1 108.0 74.4 41.5 8.2 -24.2 -55.4 -87.0 -117.9 -147.2 -177.3 151.8 121.3 91.1 60.5 -0.6 -63.3 -124.8 173.1 111.2 50.8 -9.2 -67.1 -124.2 177.8 122.0 64.7 6.1 -51.2 -110.3 -167.4 135.2 77.8 21.4 -37.9 -88.1 -143.6 161.5 106.0 50.2 -5.0 -66.3 -128.7 174.7 dBS21 -15.5 -15.9 -16.2 -16.7 -17.1 -17.6 -18.2 -18.7 -19.3 -20.1 -20.8 -21.6 -22.5 -23.2 -24.0 -24.7 -25.2 -25.7 -26.3 -26.9 -27.2 -28.2 -29.0 -29.7 -30.6 -31.4 -32.1 -32.9 -33.5 -33.9 -34.1 -33.9 -33.7 -33.6 -33.4 -33.3 -33.4 -33.4 -33.7 -34.0 -34.2 -35.0 -35.5 -35.1 -35.5 -35.7 -35.4 -35.5 -36.1 -37.1 PhS21 -8.1 -44.8 -80.6 -115.5 -150.1 175.9 142.0 108.0 74.6 41.1 7.6 -23.9 -55.4 -87.3 -117.4 -147.3 -178.1 151.8 121.4 90.8 60.6 -1.1 -63.0 -125.2 173.0 111.5 50.4 -9.5 -67.7 -124.8 178.1 121.9 64.2 6.3 -51.7 -110.0 -167.5 135.0 77.4 20.7 -37.8 -90.3 -142.2 162.4 105.8 51.2 -5.7 -66.5 -128.3 174.5 dBS22 -1.8 -2.0 -2.2 -2.4 -2.7 -3.0 -3.2 -3.5 -3.7 -4.0 -4.3 -4.5 -4.8 -5.0 -5.2 -5.3 -5.5 -5.7 -6.1 -6.4 -6.8 -7.6 -8.7 -10.0 -10.9 -11.3 -11.4 -11.2 -11.0 -11.1 -11.6 -12.5 -14.0 -16.2 -19.2 -22.7 -22.6 -19.8 -17.6 -16.5 -15.8 -15.6 -15.4 -15.2 -15.0 -14.1 -13.3 -12.9 -13.6 -15.3 PhS22 174.0 145.8 118.2 90.8 63.4 35.9 8.4 -19.0 -46.3 -73.6 -100.8 -127.6 -154.3 179.6 153.9 128.8 104.2 79.7 55.5 31.1 6.3 -43.2 -93.9 -147.4 156.0 99.6 45.7 -4.6 -50.3 -92.4 -132.1 -170.5 149.6 105.9 55.1 -9.6 -90.2 -151.4 164.3 126.2 87.5 51.1 15.8 -22.0 -61.3 -100.6 -140.2 -179.6 140.2 97.5 The Sij measurement calibration planes are defined in the paragraph “Definition of the Sij reference planes”. Ref. : DSCHT4660QAG0211- 30 Jul 2010 5/18 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 DC-16GHz Attenuator CHT4660-QAG Typical Measured Performances Tamb = +25°C, Measurements in the package access pl anes Attenuation versus frequency (down to 50MHz) V1 = -5V to 0V & V2= -5V and after V1= 0V & V2 = -5V to 0V A B A : V1 = -5V to 0V & V2= -5V B : V1= 0V & V2 = -5V to 0V Ref : DSCHT4660QAG0211- 30 Jul 2010 6/18 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 DC-16GHz Attenuator CHT4660-QAG Input Return loss versus frequency in total attenuation range Maximum attenuation Minimum attenuation Output Return loss versus frequency in total attenuation range Maximum attenuation Minimum attenuation Ref. : DSCHT4660QAG0211- 30 Jul 2010 7/18 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 DC-16GHz Attenuator CHT4660-QAG Attenuation control with V2=-5V 0.05GHz 4GHz 16GHz Attenuation control with V1=0V 0.05GHz 4GHz 16GHz Ref : DSCHT4660QAG0211- 30 Jul 2010 8/18 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 DC-16GHz Attenuator CHT4660-QAG Attenuation versus input power @ 0.7GHz V1 = -5V to 0V & V2= -5V and after V1= 0V & V2 = -5V to 0V Attenuation versus input power @ 4GHz V1 = -5V to 0V & V2= -5V and after V1= 0V & V2 = -5V to 0V Ref. : DSCHT4660QAG0211- 30 Jul 2010 9/18 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 DC-16GHz Attenuator CHT4660-QAG Attenuation versus input power @ 16GHz V1 = -5V to 0V & V2= -5V and after V1= 0V & V2 = -5V to 0V Input IP3 versus input power V1 = -3.5V & V2= -5V (worst case area for the linearity) 38 34 Input IP3 (dBm) 30 26 22 18 14 0.5GHz 4GHz 12GHz 16GHz 8GHz 10 -5 -3 -1 1 3 5 7 9 Double Input power (dBm) Ref : DSCHT4660QAG0211- 30 Jul 2010 10/18 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 DC-16GHz Attenuator CHT4660-QAG C/I3 versus input power V1 = -3.5V & V2= -5V (worst case area for the linearity) 70 66 62 C/I3 (dB) 58 54 50 46 42 38 0.5GHz 12GHz 34 4GHz 16GHz 8GHz 30 -5 -3 -1 1 3 5 7 9 Double Input power (dBm) Ref. : DSCHT4660QAG0211- 30 Jul 2010 11/18 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 DC-16GHz Attenuator CHT4660-QAG Typical Measured Performances in temperature Measurements in the package access planes Attenuation versus input power @ 0.7GHz V1=V2=-5V V1=0V / V2=-5V +85°C V1=V2=0V -40°C +25°C +85°C Attenuation versus input power @ 4GHz V1=V2=-5V +85°C V1=0V / V2=-5V -40°C +85°C +25°C +25°C V1=V2=0V -40°C -40°C +25°C +85°C Ref : DSCHT4660QAG0211- 30 Jul 2010 12/18 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 DC-16GHz Attenuator CHT4660-QAG Attenuation versus input power @ 16GHz V1=V2=-5V +85°C -40°C +25°C +85°C V1=0V / V2=-5V -40°C +25°C +85°C +85°C V1=V2=0V -40°C +25°C Input IP3 versus input power @ 0.5GHz 38 34 Input IP3 (dBm) 30 26 22 18 -40°C 14 +25°C +85°C 10 -5 -3 -1 1 3 5 7 9 Double Input power (dBm) Ref. : DSCHT4660QAG0211- 30 Jul 2010 13/18 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 DC-16GHz Attenuator CHT4660-QAG Input IP3 versus input power @ 16GHz 38 34 Input IP3 (dBm) 30 26 22 18 -40°C 14 +25°C +85°C 10 -5 -3 -1 1 3 5 7 9 Double Input power (dBm) Ref : DSCHT4660QAG0211- 30 Jul 2010 14/18 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 DC-16GHz Attenuator CHT4660-QAG Package outline (1) T4660 (2) 9- Gnd (2) 10- RF Out 3- RF In 11- Gnd (VEED) 4- Gnd 12- Gnd GND 5- NC 13- NC 6- V1 14- NC 7- V2 15- NC 8- NC 16- NC Matt tin, Lead Free (Green) 1- Gnd Units mm 2- From the standard JEDEC MO-220 17- (2) (2) Gnd (2) (2) (1) The package outline drawing included to this data-sheet is given for indication. Refer to the application note AN0017 available at http://www.ums-gaas.com for exact package dimensions. (2) It is strongly recommended to ground the Gnd pins on the PCB board. Ref. : DSCHT4660QAG0211- 30 Jul 2010 15/18 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 DC-16GHz Attenuator CHT4660-QAG Definition of the Sij reference planes The reference planes used for Sij measurements given above are symmetrical from the symmetrical axis of the package (see drawing beside). The input and output reference planes are located at 2.65mm offset (input wise and output wise respectively) from this axis. Then, the given Sij parameters incorporate the land pattern of the evaluation motherboard recommended at the page 18. Recommended package footprint Refer to the application note AN0017 available at http://www.ums-gaas.com for package foot print recommendations. 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 drawings 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. Recommended ESD management Refer to the application note AN0020 available at http://www.ums-gaas.com for ESD sensitivity and handling recommendations for the UMS package products. Recommended environmental management Refer to the application note AN0019 available at http://www.ums-gaas.com for environmental data on UMS package products. Ref : DSCHT4660QAG0211- 30 Jul 2010 16/18 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 DC-16GHz Attenuator CHT4660-QAG Packaged part biasing options To obtain good performances in linearity, biasing voltage should be applied as following: st Control of 1 stage attenuation with V1 from –5V to 0V, with V2 fixed at -5V nd Control of 2 stage with V2 from –5V to 0V, with V1 fixed at 0V - … RF IN … … RF OUT … V1 V2 Voltage 0V V1 V2 -5V Min. Max. Attenuation The RF ports are not DC blocked. There are no DC capacitors in the package. Note This part could be also driven in Single Voltage Control, applying the same voltage from -5V to 0V on V1 and V2, leading to lower linearity performances. Ref. : DSCHT4660QAG0211- 30 Jul 2010 17/18 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 DC-16GHz Attenuator CHT4660-QAG Evaluation mother board 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 Decoupling capacitors of 10nF ±10% are recommended for all DC accesses (See application note AN0017 for details) 10nF ±10% capacitors V1 V2 Ordering Information QFN 3x3 RoHS compliant package: CHT4660-QAG/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 : DSCHT4660QAG0211- 30 Jul 2010 18/18 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