DATA SHEET SKY73010: 300 – 2500 MHz Direct Quadrature Modulator Applications Description • QPSK/GMSK/QAM/DQPSK modulators The SKY73010 is an integrated quadrature modulator for direct modulation of high frequency Amplitude Modulated (AM), Phase Modulated (PM), or compound carriers. A SiGe Bipolar Complementary Metal Oxide Semiconductor (BiCMOS) process is used to offer excellent linearity, noise floor, and carrier suppression performance. • Single-sideband modulators • Image reject mixers • CDMA base stations • GSM/EDGE, TDMA/TDMA-EDGE, and Trans-European Trunked Radio (TETRA) base stations • First upconverter in dual conversion receivers The device package and pinout for the 16-pin RF Land Grid Array (RFLGA) are shown in Figure 1. Figure 2 shows a functional block diagram for the SKY73010. Signal pin assignments and functional pin descriptions are provided in Table 1. Features • Broad RF and LO frequency range: 300 to 2500 MHz Skyworks offers this part as a lead (Pb)-free “environmentally friendly” package that is RoHS compliant (European Parliament for the Restriction of Hazardous Substances). • Carrier suppression greater than 35 dBc • Sideband suppression greater than 45 dBc • Modulation bandwidth DC to 250 MHz • Noise floor less than –153 dBm/Hz • Broadband LO/RF flatness IREF ISIG QSIG 1 QREF GND • RFLGA™ (16-pin, 4 x 4 mm) Pb-free package (MSL3, 260 °C per JEDEC J-STD-020) 16 15 14 13 ISIG IREF GND 2 12 GND GND 3 11 GND LO 10 4 8 RF OUT VCC 9 GND 7 RF 6 PD GND 5 VCC LO –45 +45 QSIG C1299 Figure 1. SKY73010 Pinout– 16-Pin RFLGA Package (Top View) QREF C1298 Figure 2. SKY73010 Functional Block Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 103127C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 21, 2004 1 DATA SHEET • SKY73010 Table 1. SKY73010 Signal Descriptions Pin # Name Description Pin # Name Description 1 GND Ground 9 GND Ground 2 GND Ground 10 VCC +5 VDC supply 3 GND Ground 11 GND Ground 4 LO LO input 12 GND Ground 5 GND Ground 13 QSIG Q input 6 VCC +5 VDC supply 14 ISIG I input 7 PD Power down 15 IREF I reference 8 RF Ground 16 QREF Q reference Circuit Design Considerations Package and Handling Information The following design considerations are general in nature and must be followed regardless of final use or configuration. Since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. 1. Paths to ground should be made as short as possible. 2. The downset paddle of the SKY73010 direct quadrature modulator has special electrical and thermal grounding requirements. This pad is the main thermal conduit for heat dissipation. Since the circuit board acts as the heat sink, it must shunt as much heat as possible from the device. As such, design the connection to the ground pad to dissipate the maximum wattage produced to the circuit board. Multiple vias to the grounding layer are required. 3. Two external output bypass capacitors are required on the VCC pin. The values of these capacitors change with respect to the desired RF frequency. One capacitor should be used for low frequency bypassing and the other capacitor for high frequency bypassing. Special attention should be given so that the smaller value capacitor does not go into selfresonance at the desired RF frequency. Testing Procedure The following In-Phase and Quadrature (I/Q) input settings were used to measure the CDMA Adjacent Channel Power Reduction (ACPR): • Pilot Channel Active • Sync Channel Active • Paging Channel Active • Six Traffic Channels Active • 32x oversampling • Equifilter The SKY73010 is rated to Moisture Sensitivity Level 3 (MSL3) at 260 °C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, PCB Design & SMT Assembly/Rework Guidelines for RFLGA Packages, document number 103147. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Production quantities of this product are shipped in a standard tape and reel format. For packaging details, refer to the Skyworks Application Note, Tape and Reel, document number 101568. Electrical and Mechanical Specifications The absolute maximum ratings of the SKY73010 are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. Typical performance characteristics are shown in Figures 3 through 7. Figure 8 provides a typical evaluation board schematic. Package dimensions for the 16-pin RFLGA are shown in Figure 9, and tape and reel dimensions are shown in Figure 10. Electrostatic Discharge (ESD) Sensitivity The SKY73010 is a static-sensitive electronic device. Do not operate or store near strong electrostatic fields. Take proper ESD precautions. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 October 21, 2004 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 103127C DATA SHEET • SKY73010 Table 2. SKY73010 Absolute Maximum Ratings (TA = +25 °C, unless otherwise noted) Parameter Symbol Min Typical Max 4.5 Units +3 V supply voltage VCC Power dissipation PDIS LO input power PLOIN 0 Thermal resistance RTH 44 Operating case temperature TOPR –40 +85 °C Storage case temperature TSTG –40 +150 °C IF input voltage 6.0 V 750 mW +6 dBm 1.5 Vpp °C/W Note: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal values. Table 3. SKY73010 Recommended Operating Conditions Parameter +5 V supply voltage Symbol VCC Current consumption ICC Operating case temperature TOPR Min Typical Max Units 4.5 5.0 5.5 V 110 mA +85 °C 90 –40 Table 4. SKY73010 Electrical Characteristics (1 of 2) (VCC = 5 V, IF = 2 MHz, LO input power = –3 dBm, TC = 25 °C, unless otherwise noted) Parameter Symbol Test Conditions Min Typical Max Units Local Oscillator Input frequency range 300 2500 MHz Input power level –3 +3 dBm Input impedance 2.0:1 VSWR I/Q Signal Reference Input Input frequency range DC Reference voltage 3.6 250 MHz 4.1 V 3 dBm –12 dBm 73 dBc RF Output (400 MHz) Output –1 dB compression point CDMA output channel power CDMA ACPR CDMA RF output power = –12 dBm Optimized carrier suppression Optimized I/Q DC offsets 50 dBc Carrier suppression 28 35 dBc Sideband suppression 30 35 dBc Optimized sideband suppression Optimized I/Q phase and amplitude balance Broadband noise floor @ 20 MHz offset from carrier Output impedance 50 dBc –152 –150 2.0:1 dBm/Hz Ω Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 103127C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 21, 2004 3 DATA SHEET • SKY73010 Table 4. SKY73010 Electrical Characteristics (2 of 2) (VCC = 5 V, IF = 2 MHz, LO input power = –3 dBm, TC = 25 °C, unless otherwise noted) Parameter Symbol Test Conditions Min Typical Max Units –1.5 +1.5 dBm –12 dBm 72 dBc RF Output (900 MHz) Output –1 dB compression point CDMA output channel power CDMA ACPR CDMA RF output power = –12 dBm Optimized carrier suppression Optimized I/Q DC offsets Carrier suppression Sideband suppression Optimized sideband suppression Optimized I/Q phase and amplitude balance Broadband noise floor @ 20 MHz offset from carrier 50 dBc 24 35 32 45 dBc dBc 50 dBc –153 Output impedance –150 dBm/Hz 2.0:1 Ω –3.5 dBm RF Output (1900 MHz) Output –1 dB compression point –6.0 CDMA output channel power –18 dBm CDMA ACPR CDMA RF output power = –18 dBm 70 dBc Optimized carrier suppression Optimized I/Q DC offsets 50 dBc 28 dBc Carrier suppression 20 Sideband suppression 28 Optimized sideband suppression Optimized I/Q phase and amplitude balance Broadband noise floor @ 20 MHz offset from carrier Output impedance 40 dBc 50 dBc –155 –152 2.0:1 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 October 21, 2004 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 103127C dBm/Hz Ω 5.0 4 0.0 2 –5.0 0 POUT (dBm) POUT (dBm) DATA SHEET • SKY73010 –10.0 450 MHz –15.0 –2 –4 900 MHz 1900 MHz –20.0 –6 –8 –25.0 0 200 400 600 800 1000 1200 0 500 VIN (mVp-p) 2000 2500 3000 Figure 4. Output 1 dB Compression Points vs RF Frequency –40.0 –40.0 885 kHz offset 885 kHz offset –45.0 –45.0 1.26 MHz offset 1.26 MHz offset –50.0 ACPR (dBc) –50.0 ACPR (dBc) 1500 Frequency (MHz) Figure 3. Continuous Wave (CW) Intermediate Frequency (IF) Input Voltage vs Output Power –55.0 –60.0 –65.0 –55.0 –60.0 –65.0 –70.0 –70.0 –75.0 –75.0 –80.0 –80.0 –25.0 1000 –20.0 –15.0 –10.0 –5.0 0.0 –25.0 –20.0 –15.0 –10.0 –5.0 0.0 Channel POUT (dBm) Channel POUT (dBm) Figure 6. 900 MHz CDMA ACPR vs Channel Output Power Figure 5. 450 MHz CDMA ACPR vs Channel Output Power –40.0 885 kHz offset –45.0 1.26 MHz offset ACPR (dBc) –50.0 –55.0 –60.0 –65.0 –70.0 –75.0 –80.0 –30.0 –25.0 –20.0 –15.0 –10.0 –5.0 0.0 Channel POUT (dBm) Figure 7. 1900 MHz CDMA ACPR vs Channel Output Power Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 103127C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 21, 2004 5 DATA SHEET • SKY73010 R1 2.2 kΩ C9 0.10 µF C10 3.0 pF R2 2.2 kΩ C7 0.10 µF C2 0.10 µF C8 3.0 pF SMA R4 2.2 kΩ C6 0.10 µF 3 14 C1 0.10 µF 13 QSIG ISIG QREF GND 2 15 IREF 16 1 SMA GND GND SKY73010 GND C5 3.0 pF GND 12 R3 2.2 kΩ C4 0.10 µF 11 C3 3.0 pF 1 2 3 4 4 LO VCC 5 10 5 6 7 8 C11 3.0 pF 8 9 C13 0.10 µF C14 3.0 pF SMA S420 Figure 8. SKY73010 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 6 7 8-Pin Header GND RF PD VCC SMA GND C12 0.10 µF October 21, 2004 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 103127C DATA SHEET • SKY73010 1.98 To metal pad edge Pin #1 4.04 ± 0.05 0.75 0.80 Typ 14 15 Pin #1 mark 16 1 12 2 11 3 10 4 0.75 1.60 3.20 4.04 ± 0.05 13 9 8 7 6 1.98 To metal pad edge 5 Detail A Exposed Metal 0.80 Typ Top View Bottom View 1.00 ± 0.10 Solder Mask Exposed Metal Mold Package Edge Substrate 0.38 (16x) 0.30 Ref Side View 0.04 0.30 (16x) 0.40 (16x) All measurements in millimeters C1445 Detail A Figure 9. SKY73010 16-Pin RFLGA Package Dimensions 8.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 1.75 ± 0.10 1.50 ± 0.10 A A B 12.00 +0.30/–0.10 B 5.50 ± 0.05 Pin #1 Indicator 1.50 ± 0.25 0.292 ± 0.02 7o Max 8o Max Notes: 1. Carrier tape material: black conductive polycarbonate or polysterene 2. Cover tape material: transparent conductive PSA 3. Cover tape size: 9.3 mm width 4. All measurements are in millimeters 4.30 ± 0.10 1.73 ± 0.10 A 4.35 ± 0.10 B S187 Figure 10. SKY73010 16-Pin RFLGA Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 103127C • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 21, 2004 7 DATA SHEET • SKY73010 Ordering Information Model Name SKY73010 300-2500 MHz Direct Quadrature Modulator Manufacturing Part Number SKY73010-11 Evaluation Kit Part Number TW12-D692 Copyright © 2003, 2004, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products. These materials are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials. Skyworks may make changes to its documentation, products, specifications and product descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from future changes to its documentation, products, specifications and product descriptions. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by or under this document. Except as may be provided in Skyworks Terms and Conditions of Sale for such products, Skyworks assumes no liability whatsoever in association with its documentation, products, specifications and product descriptions. 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