DATA SHEET CX65105: 1700 – 2200 MHz Linear Power Amplifier Applications Description • PCS/DCS/UMTS Skyworks CX65105 Power Amplifier (PA) is a fully matched, 8-pin Leadless Chip Carrier (LCC) surface mount module, developed for Personal Communications System (PCS), Digital Communications System (DCS), and Universal Mobile Telephone System (UMTS) applications. Wireless Local Loop (WLL) and Industrial, Scientific, Medical (ISM) applications are also supported. • Repeaters • WLL and ISM bands • Mobile radio • Telematics This small, power-efficient PA has a full 1700 to 2200 MHz bandwidth coverage packed into a single compact package. All active circuitry in the module is contained in a single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC). The CX65105 is manufactured with Skyworks Aluminum (Al) GaAs Heterojunction Bipolar Transistor (HBT) process, which allows for single supply operation while maintaining high efficiency and good linearity. Features • Typical POUT of 28.5 dBm • High linearity • Low power consumption • Single +5 V supply The 8-pin Leadless Chip Carrier (LCC) device package and pinout are shown in Figure 1. Figure 2 shows a functional block diagram for the CX65105. Signal pin assignments and functional pin descriptions are provided in Table 1. • LCC (8-pin, 8 x 8 mm) package VREF VCC1 VCC2 8 4 VCC1 3 Driver Stage Bias 8 GND 1 7 GND RFIN 2 6 RFOUT RFIN VREF 3 5 Input Match PA Interstage Match PA Output Match 6 RFOUT GND MMIC 4 VCC2 2 Power Stage Bias Module GND 1, 5, 7 C1220 S384 Figure 1. CX65101 Pinout– 8-Pin LCC Package (Top View) Figure 2. CX65105 Functional Block Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 101476F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 15, 2004 1 DATA SHEET • CX65105 Table 1. CX65105 Signal Descriptions Pin # 1 Name GND Description Ground Pin # 5 Name GND Description Ground 2 RFIN RF input 6 RFOUT Rf output 3 VREF Reference voltage 7 GND Ground 4 VCC2 Supply voltage 8 VCC1 Supply voltage Technical Description The CX65105 is comprised of two amplifier stages. The matching circuits for the input stage, inter-stage, and output stage are contained within the device. The bias circuits for both input and output stages are included within the device for optimum temperature tracking performance. The CX65105 is internally matched for optimum linearity and efficiency. The input and output stages are independently supplied using the VCC1 and VCC2 supply lines, pins 8 and 4 respectively. The bias reference voltage is supplied using a common VREF (pin 3) line. Package and Handling Information 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. If the part is attached in a reflow oven, the temperature ramp rate should not exceed 5 °C per second. Maximum temperature should not exceed 225 °C and the time spent at a temperature that exceeds 210 °C should be limited to less than 10 seconds. If the part is manually attached, precaution should be taken to ensure that the part is not subjected to a temperature that exceeds 300 °C for more than 10 seconds. 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 CX65105 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 over temperature of the CX65105 are illustrated in Figures 3 through 8. Figure 13 shows the package dimensions for the 8-pin CX65105 LCC and Figure 14 provides the tape and reel dimensions. Electrostatic Discharge (ESD) Sensitivity The CX65105 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 15, 2004 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 101476F DATA SHEET • CX65105 Table 2. CX65105 Absolute Maximum Ratings Parameter Symbol Min Typical Max Units 7 dBm RF input power PIN Supply voltage VCC 6 V Reference voltage VREF 4 V Case operating temperature TC –40 +85 °C Storage temperature TST –55 +125 °C 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. CX65105 Recommended Operating Conditions Parameter Symbol Supply voltage Min Typical VCC Reference voltage VREF Operating frequency FO Max Units 5 V 3.6 1700 V 1900 2200 MHz Table 4. CX65105 Electrical Characteristics (VCC = 5.0 V, VREF = 3.6 V, Frequency = 1900 MHz, TC = 25 °C, unless otherwise noted) Parameter Symbol Test Conditions Min Typical Max Units 1700 1900 2200 MHz 143 185 mA Analog Inputs Frequency range Quiescent current IQ Small signal gain G PIN = –15 dBm 23.5 25.0 dB Output power POUT PIN = 5 dBm 27 28.5 dBm Efficiency PAE PIN = 5 dBm 25 30 % Noise Figure (NF) NF Output IP3 OIP3 Two tones with 100 kHz spacing, PIN = 0 dBm per tone 36 40 dBm POUT @ ACPR = –45 dBc POUT_ACPR f = 1960 MHz 22 24 dBm POUt @ ACLR = –45 dBc POUT_ACLR f = 2140 MHz 18 20 dBm 7 dB The above specifications apply only to the 1900 MHz operating frequency. 31 36 34 30 32 29 30 28 -30C 25C 27 85C PAE (%) Pout (dBm) Note: 6 28 85C 26 25C -30C 24 22 26 20 25 18 24 16 2 3 4 5 6 7 Pin (dBm) Figure 3. Typical POUT vs PIN Over Temperature 2 3 4 5 6 7 Pin (dBm) Figure 4. Typical PAE vs PIN Over Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 101476F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 15, 2004 3 DATA SHEET • CX65105 8 7 25 6 20 85C 15 25C -30C NF (dB) Small Signal Gain (dB) 30 10 5 85C 4 25C -30C 3 2 5 1 0 1700 0 1800 1900 2000 2100 2200 1700 1800 Freq (MHz) 1900 2000 2100 2200 Freq (MHz) Figure 5. Typical Small Signal Gain vs Frequency Over Temperature Figure 6. Typical Noise Figure vs Frequency Over Temperature 50 35 30 40 85C 25C -30C 20 Pout (dBm) OIP3 (dBm) 25 30 20 -30C 25C 15 85C 10 10 5 0 1700 0 1800 1900 2000 2100 2200 1700 1800 Freq (MHz) Figure 7. Typical OIP3 vs Frequency Over Temperature 1900 2000 2100 2200 Freq (MHz) Figure 8. Typical POUT vs Frequency Over Temperature Skyworks CX65105 Evaluation Board is used to test the performance of the CX65105 PA. The Evaluation Board schematic diagram is shown in Figure 9. The schematic shows the basic design of the board for the 1700 to 2200 MHz range. Figure 10 provides the Evaluation Board assembly diagram. Figure 11 provides the Evaluation Board layer detail. 3. Two external output bypass capacitors (0.01 µF and 4.7 µF) are required on the VCC1 (pin 8) supply input. The same two capacitors are also required on the VCC2 (pin 4) supply input. Both capacitors should be placed in parallel between the supply line and ground. Also, a bypass capacitor of 0.01 µF is required on the VREF input (pin 3). See Figure 9 for a detailed diagram. Circuit Design Considerations 4. VCC1 (pin 8) and VCC2 (pin 4) may be connected together at the supply. Evaluation Board Description The following design considerations are general in nature and must be followed regardless of final use or configuration 1. Paths to ground should be made as short as possible. 2. The ground pad of the CX65105 PA 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 amplifier. 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. 5. At the RF input (pin 2), a DC blocking capacitor is required. 6. The RF output includes an onboard internal DC blocking capacitor. All impedance matching is provided internally. Therefore, the application only needs to provide a good 50 Ω load. Testing Procedure Use the following procedure to set up the CX65105 Evaluation Board for testing. Refer to Figure 12 for guidance: Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 October 15, 2004 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 101476F DATA SHEET • CX65105 1. Connect a +5.0 V supply voltage to VCC1 and VCC2, and +3.6 V supply voltage to VREF. If available, enable the current limiting function of the power supplies to 1.0 A for the +5.0 V supply current and 30 mA for the +3.6 V supply current. 5. Enable the RF signal. 6. Take measurements. CAUTION: If the input signal exceeds the rated power, the CX65105 Evaluation Board can be permanently damaged. 2. Connect a signal generator to the RF signal input port. Set it to the desired RF frequency at a power level of 7 dBm or less to the Evaluation Board but do NOT enable the RF signal. 3. Connect a spectrum analyzer to the RF signal output port. 4. Enable the power supply. +5 V C1 0.01 µF C2 4.7 µF VCC1 8 1 T2 50 Ω microstrip T1 7 RF in RFIN C5 4.7 pF VREF 2 6 3 5 T3 50 Ω microstrip RF out RFOUT 4 C6 0.01 µF Pin 9 Package Base VCC2 C3 0.01 µF +3.6 V Notes: 1) Pin 9 provides both a thermal and electrical ground. This ground path is critical and must be as short as possible. 2) Transmission line lengths T1 and T2 should be minimized. C4 4.7 µF C1237d +5.0 V Figure 9. Evaluation Board Schematic, 1700 MHz to 2200 MHz 8x8 PA EVALUATION BD. C1 C2 C5 C6 J2 (RF Out) C3 GND GND VCC2 GND C4 VREF VCC1 J1 (RF In) J3 C1257b Figure 10. Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 101476F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 15, 2004 5 DATA SHEET • CX65105 Layer 1: Top - Metal Layer 2: Inner Traces Layer 3: Solid Ground Plane C1253d Figure 11. Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 October 15, 2004 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 101476F DATA SHEET • CX65105 Power Supply Input Signal Generator Power Meter or Spectrum Analyzer Output CX65105 Evaluation Board C1240d Figure 12. CX65105 Evaluation Board Testing Configuration 1.955 ± 0.155 1.45 ± 0.10 Pin 8 Pin 7 Pin 1 8.385 ± 0.125 7.875 ± 0.075 Pin 2 Pin 6 Pin 5 Pin 3 Pin 4 0.51 ± 0.05 8.385 ± 0.125 7.875 ± 0.075 3.30 (2X) DETAIL A 1.65 (2X) Note: pin 1 connects to ground 0.81 (12X) 3.30 (2X) R.20 (8X) 3.99 R 2.54 3.94 Pin 9 1.91 (2X) 1.91 (2X) SEE DETAIL A 0.61 (12X) 3.94 1.65 (2X) 3.99 COPPER BOTTOM SOLDER MASK BOTTOM The bottom solder mask thickness = 0.063 maximum All measurements are in millimeters C1201 Figure 9. CX65105 8-Pin LCC Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 101476F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 15, 2004 7 DATA SHEET • CX65105 12.00 ± 0.10 4.00 ± 0.10 ∅1.50± 0.10 2.00 ± 0.10 1.75 ± 0.10 B Pin #1 A A 7.50 ± 0.10 16.00 +0.30/-0.10 B ∅1.50 ± 0.25 5o Max 8o Max 0.318 ± 0.013 Notes: 1. Carrier tape: black conductive polystyrene. 2. Cover tape material: transparent conductive PSA. 3. All measurements are in millimeters. 8.89 ± 0.10 8.88 ± 0.10 A B 2.14 ± 0.10 Figure 10. CX65105 8-Pin LCC Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 October 15, 2004 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 101476F C1221 DATA SHEET • CX65105 Ordering Information Model Name CX65105 1700-2200 MHz Linear Power Amplifier Manufacturing Part Number CX65105-11 Evaluation Kit Part Number TW10-D842 Copyright © 2001, 2002, 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. THESE MATERIALS ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED OR OTHERWISE, RELATING TO SALE AND/OR USE OF SKYWORKS PRODUCTS INCLUDING WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. SKYWORKS FURTHER DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THESE MATERIALS WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. The following are trademarks of Skyworks Solutions, Inc.: Skyworks™, the Skyworks logo, and Breakthrough Simplicity™. Product names or services listed in this publication are for identification purposes only, and may be trademarks of Skyworks or other third parties. Third-party brands and names are the property of their respective owners. Additional information, posted at www.skyworksinc.com, is incorporated by reference. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 101476F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • October 15, 2004 9