DATA SHEET SKY12207-478LF: 0.9 to 4.0 GHz 50 W High Power Silicon PIN Diode SPDT Switch Applications Transmit/receive switching and failsafe switching in TD-SCDMA, WiMAX, and LTE base stations Transmit/receive switching in land mobile radios and military communication systems ANT TX RX Features High power handling: 50 W CW, 300 W peak Low insertion loss: 0.4 dB typical High antenna-to-receive isolation: 42 dB @ 2.6 GHz typical Controlled with positive power supply Bias driver circuit available on request Small, QFN (16-pin, 4 x 4 mm) Pb-free package (MSL1, 260 C per JEDEC J-STD-020) Skyworks Green™ products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of Green™, document number SQ04-0074. RX_BIAS Exposed Paddle S2403 Figure 1. SKY12207-478LF Block Diagram Description The SKY12207-478LF is a high power handling, Single-Pole, Double-Throw (SPDT) silicon PIN diode switch. The device operates over the 900 MHz to 4 GHz band. It features low insertion loss, excellent power handling, and superb linearity with low DC power consumption. The SKY12207-478LF is well-suited for use as a high power transmit/receive switch in a variety of telecommunication systems such as WiMAX, TD-SCDMA, or LTE base stations. The device is provided in a 4 x 4 mm, 16-pin Quad Flat No-Lead (QFN) package. A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014 1 N/C GND TX GND DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH 16 15 14 13 ANT 2 11 N/C GND 3 10 N/C N/C 4 9 RX_BIAS 5 6 7 8 GND N/C RX 12 GND 1 N/C GND S2401 Figure 2. SKY12207-478LF Pinout – 16-Pin QFN (Top View) Table 1. SKY12207-478LF Signal Descriptions Pin Name Description Pin Name Description 1 GND Ground. Must be connected to ground using lowest possible impedance. 9 RX_BIAS RF ground port and DC bias input port 2 ANT Antenna RF port and DC bias input port 10 N/C No connection 3 GND Ground. Must be connected to ground using lowest possible impedance. 11 N/C No connection 4 N/C No connection 12 N/C No connection 5 N/C No connection 13 GND Ground. Must be connected to ground using lowest possible impedance. 6 GND Ground. Must be connected to ground using lowest possible impedance. 14 TX Transmit RF input port and DC bias input port 7 RX Receive output port and DC bias input port 15 GND Ground. Must be connected to ground using lowest possible impedance. 8 GND Ground. Must be connected to ground using lowest possible impedance. 16 N/C No connection Electrical and Mechanical Specifications The absolute maximum ratings of the SKY12207-478LF are provided in Table 2. Recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. Typical performance characteristics of the SKY12207-478LF are illustrated in Figures 3 through 9. The state of the SKY12207-478LF is determined by the logic provided in Table 6. Table 7 provides the logic for use with the SKY12207-478LF Evaluation Board. Power derating data is plotted against temperature in Figures 10 and 11. Equivalent circuit diagrams for transmit and receive are shown in Figure 12. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH Table 2. SKY12207-478LF Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units RF CW input power, TX and ANT ports (TSUBSTRATE = 25 °C) PIN 75 W RF peak input power, TX and ANT ports (TSUBSTRATE = 25 °C, RF burst width = 10 μs, RF burst repetition rate = 25 kHz) PIN 300 W RF CW input power, RX port (TSUBSTRATE = 25 °C) PIN 60 W RF peak input power, RX port (TSUBSTRATE = 25 °C, RF burst width = 10 μs, RF burst repetition rate = 25 kHz) PIN 240 W Control port reverse voltage VCTL 200 V Control port forward current ICTL 200 mA Operating temperature TOP –55 +175 C Storage temperature TSTG –55 +200 C Electrostatic discharge: ESD 1000 1000 200 V V V Charged Device Model (CDM), Class 4 Human Body Model (HBM), Class 1C Machine Model (MM), Class B 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 value. Exceeding any of the limits listed here may result in permanent damage to the device. CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. Table 3. Recommended Operating Conditions (Per ANT, TX, RX, and RX_BIAS Inputs) Parameter Symbol Min Typical Max Units Control port reverse voltage VCTL 5 28 100 V Control port forward current ICTL 20 50 100 mA Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014 3 DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH Table 4. SKY12207-478LF Electrical Specifications, Bias Voltage = 28 V (1 of 2) (Note 1) (TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, EVB Optimized for 2.6 GHz Operation, Unless Otherwise Noted) Parameter Insertion loss, TX to ANT ports Symbol ILTX-ANT Test Condition Min ILANT-RX 0.25 0.29 0.31 0.32 0.41 Iso_TX-RX Iso_ANT-TX 0.28 0.32 0.33 0.39 0.70 Iso_ANT-RX 0.60 37.0 34.0 37.0 38.5 42.0 32.0 dB dB dB dB dB 26.0 22.0 21.0 20.0 16.0 dB dB dB dB dB 17.0 33 37 38 42 30 dB dB dB dB dB VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 28 V, ANT port PIN @ pin 2 = 0 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz 39 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 dB dB dB dB dB VPIN_2 = 1 V, VPIN_14 = 28 V, IPIN_7 = –50 mA, VPIN_9 = 28 V, ANT port PIN @ pin 2 = 0 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz Isolation, ANT to RX ports 0.55 dB dB dB dB dB VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 28 V, TX port PIN @ pin 14 = 0 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz Isolation, ANT to TX ports Units VPIN_2 = 1 V, VPIN_14 = 28 V, IPIN_7 = –50 mA, VPIN_9 = 28 V, ANT port PIN @ pin 2 = 0 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz Isolation, TX to RX ports Max VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 28 V, TX port PIN @ pin 14 = 0 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz Insertion loss, ANT to RX ports Typical January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH Table 4. SKY12207-478LF Electrical Specifications, Bias Voltage = 28 V (2 of 2) (Note 1) (TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, EVB Optimized for 2.6 GHz Operation, Unless Otherwise Noted) Parameter Input return loss Symbol RL Transmit 2nd harmonic 2fo Test Condition Min Transmit 3rd Order Input Intercept Point 3fo IIP3 Max Units 1.8 to 2.5 GHz: RX insertion loss state, ANT port (@ pin 2) 28 dB TX insertion loss state, TX (@ pin 14) 26 dB –72 –66 –84 –68 –71 dBc dBc dBc dBc dBc 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz –88 –80 –84 –81 –74 dBc dBc dBc dBc dBc VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 28 V, TX port PIN @ pin 14 = +30 dBm/tone, tone spacing = 1 MHz, @ 2.60 GHz +78 dBm port TX insertion loss state, TX port PIN @ pin 14 = +30 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz Transmit 3rd harmonic Typical TX insertion loss state, TX port PIN @ pin 14 = +30 dBm: Transmit 0.1 dB Compression Point IP0.1dB VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 28 V, @ 2.60 GHz +47 dBm Receive 0.1 dB Compression Point IP0.1dB VPIN_2 = 1 V, VPIN_14 = 28 V, IPIN_7 = –50 mA, VPIN_9 = 28 V, @ 2.60 GHz +46 dBm VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 28 V, 0.9 to 3.5 GHz 50 W W Maximum transmit CW input power PIN_CW Maximum receive CW input power PIN_CW VPIN_2 = 1 V, VPIN_14 = 28 V, IPIN_7 = –50 mA, VPIN_9 = 28 V, 0.9 to 3.5 GHz 40 Transmit RF switching time tSW 10% to 90% RF on, repetition rate = 0.1 MHz, @ 2.6 GHz 170 ns Thermal resistance (junction to case) ΘJC 32 C/W Note 1: Performance is guaranteed only under the conditions listed in this Table. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014 5 DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH Table 5. SKY12207-478LF Electrical Specifications, Bias Voltage = 5 V (1 of 2) (Note 1) (TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, EVB Optimized for 2.6 GHz Operation, Unless Otherwise Noted) Parameter Insertion loss, TX to ANT ports Symbol ILTX-ANT Test Condition Min ILANT-RX 0.25 0.30 0.32 0.34 0.43 Iso_TX-RX Iso_ANT-TX 0.28 0.31 0.33 0.41 0.72 Iso_ANT-RX 0.60 40.0 33.0 36.4 38.0 43.0 31.0 dB dB dB dB dB 25.0 22.0 21.0 19.0 15.0 dB dB dB dB dB 17.0 33 36 37 42 31 dB dB dB dB dB VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 5 V, ANT port PIN @ pin 2 = 0 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz 39 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 dB dB dB dB dB VPIN_2 = 1 V, VPIN_14 = 5 V, IPIN_7 = –50 mA, VPIN_9 = 5 V, ANT port PIN @ pin 2 = 0 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz Isolation, ANT to RX ports 0.55 dB dB dB dB dB VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 5 V, TX port PIN @ pin 14 = 0 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz Isolation, ANT to TX ports Units VPIN_2 = 1 V, VPIN_14 = 5 V, IPIN_7 = –50 mA, VPIN_9 = 5 V, ANT port PIN @ pin 2 = 0 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz Isolation, TX to RX ports Max VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 5 V, TX port PIN @ pin 14 = 0 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz Insertion loss, ANT to RX ports Typical January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH Table 5. SKY12207-478LF Electrical Specifications, Bias Voltage = 5 V (2 of 2) (Note 1) (TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, EVB Optimized for 2.6 GHz Operation, Unless Otherwise Noted) Parameter Input return loss Symbol RL Transmit 2nd harmonic 2fo Test Condition Min Transmit 3rd Order Input Intercept Point 3fo IIP3 Max Units 1.8 to 2.5 GHz: RX insertion loss state, ANT port (@ pin 2) 28 dB TX insertion loss state, TX (@ pin 14) 26 dB –36 –43 –61 –51 –58 dBc dBc dBc dBc dBc 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz –57 –55 –59 –59 –52 dBc dBc dBc dBc dBc VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 5 V, TX port PIN @ pin 14 = +30 dBm/tone, tone spacing = 1 MHz, @ 2.60 GHz +74 dBm port TX insertion loss state, TX port PIN @ pin 14 = +30 dBm: 900 MHz 1.80 GHz 2.01 GHz 2.60 GHz 3.50 GHz Transmit 3rd harmonic Typical TX insertion loss state, TX port PIN @ pin 14 = +30 dBm: Transmit 0.1 dB Compression Point IP0.1dB VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 5 V, @ 2.60 GHz +33 dBm Receive 0.1 dB Compression Point IP0.1dB VPIN_2 = 1 V, VPIN_14 = 5 V, IPIN_7 = –50 mA, VPIN_9 = 5 V, @ 2.60 GHz +34 dBm VPIN_2 = 1 V, IPIN_14 = –50 mA, IPIN_9 = –50 mA, VPIN_7 = 5 V, 0.9 to 3.5 GHz 15 W W Maximum transmit CW input power PIN_CW Maximum receive CW input power PIN_CW VPIN_2 = 1 V, VPIN_14 = 5 V, IPIN_7 = 50 mA, VPIN_9 = 5 V, 0.9 to 3.5 GHz 10 Transmit RF switching time tSW 10% to 90% RF on, repetition rate = 0.1 MHz, @ 2.60 GHz 170 ns Thermal resistance (junction to case) ΘJC 32 C/W Note 1: Performance is guaranteed only under the conditions listed in this Table. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014 7 DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH Typical Performance Characteristics 0 0 –0.5 –0.5 Insertion Loss (dB) Insertion Loss (dB) (TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, EVB Optimized for 2.6 GHz Operation, Unless Otherwise Noted) –1.0 –1.5 –2.0 |S21|: ANT to RX in Insertion Loss State |S31|: ANT to TX in Insertion Loss State –2.5 –1.0 –1.5 –2.0 |S21|: ANT to RX in Insertion Loss State |S31|: ANT to TX in Insertion Loss State –2.5 –3.0 –3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 0.5 1.0 Frequency (GHz) 3.0 –10 –15 –20 –20 –25 –25 –30 –35 –40 –45 4.0 –50 –55 –60 –65 0.5 1.0 1.5 2.0 2.5 3.0 3.5 –45 –50 –55 –60 –65 –70 –75 –80 |S21|: ANT to RX Isolation with ANT to TX in Insertion Loss State |S23|: TX to RX Isolation with ANT to TX in Insertion Loss State |S31|: ANT to TX Isolation with ANT to RX in Insertion Loss State 0 –30 –35 –40 |S21|: ANT to RX Isolation with ANT to TX in Insertion Loss State |S23|: TX to RX Isolation with ANT to TX in Insertion Loss State |S31|: ANT to TX Isolation with ANT to RX in Insertion Loss State 0 4.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Frequency (GHz) Frequency (GHz) Figure 6. Isolation vs Frequency (ANT to RX, TX to RX, and ANT to TX Ports; VCTL = 5 V, ICTL = –50 mA) Figure 5. Isolation vs Frequency (ANT to RX, TX to RX, and ANT to TX Ports; VCTL = 28 V, ICTL = –50 mA) 0 –5 –10 –10 –15 –15 –20 –20 Return Loss (dB) 0 –5 –25 –30 –35 –40 –25 –30 –35 –40 –45 –45 |S11|: ANT Return Loss with ANT to RX in Insertion Loss State |S22|: RX Return Loss with ANT to RX in Insertion Loss State |S33|: TX Return Loss with ANT to TX in Insertion Loss State |S11|: ANT Return Loss with ANT to TX in Insertion Loss State |S22|: RX Return Loss with ANT to TX in Insertion Loss State |S33|: TX Return Loss with ANT to RX in Insertion Loss State –50 –55 –60 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Frequency (GHz) Figure 7. Return Loss vs Frequency (ANT, TX, and RX Ports; VCTL = 28 V, ICTL = –50 mA) |S11|: ANT Return Loss with ANT to RX in Insertion Loss State |S22|: RX Return Loss with ANT to RX in Insertion Loss State |S33|: TX Return Loss with ANT to TX in Insertion Loss State |S11|: ANT Return Loss with ANT to TX in Insertion Loss State |S22|: RX Return Loss with ANT to TX in Insertion Loss State |S33|: TX Return Loss with ANT to RX in Insertion Loss State –50 –55 4.0 –60 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Frequency (GHz) Figure 8. Return Loss vs Frequency (ANT, TX, and RX Ports; VCTL = 5 V, ICTL = –50 mA) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 3.5 0 –5 –10 –15 Isolation (dB) Isolation (dB) 2.5 Figure 4. Insertion Loss vs Frequency (ANT to RX and ANT to TX Ports; VCTL = 5 V, ICTL = –50 mA) 0 –5 Return Loss (dB) 2.0 Frequency (GHz) Figure 3. Insertion Loss vs Frequency (ANT to RX and ANT to TX Ports; VCTL = 28 V, ICTL = –50 mA) –70 –75 –80 1.5 January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D 4.0 DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH –0.3 28 V, 20 mA 28 V, 50 mA 5 V, 20 mA 5 V, 50 mA Insertion Loss (dB) –0.4 –0.5 –0.6 –0.7 –0.8 –0.9 +30 +32 +34 +36 +38 +40 +42 +44 +46 +48 +50 Input Power (dBm) Figure 9. Insertion Loss vs CW Input Power (TX to ANT Port, f = 2.6 GHz) Table 6. SKY12207-478LF Truth Table Path Control Conditions Antenna-toReceiver Port (Pin 2 to Pin 7) Transmitter-toAntenna Port (Pin 14 to Pin 2) Antenna Port Bias Input (Pin 2) Nominal Receiver Output Port (Pin 7) Nominal Transmitter Port Bias Input (Pin 14) RX_BIAS Input (Pin 9) Receive (see Figure 12) Low insertion loss High isolation 1V –50 mA 28 V 28 V Transmit (see Figure 12) High isolation Low insertion loss 1V 28 V –50 mA –50 mA Switch State Table 7. SKY12207-478LF Evaluation Board Truth Table Path Switch State Control Conditions Antenna-toReceiver Port Transmitter-toAntenna Port Antenna Port Bias Input Receiver Output Port Transmitter Port Bias Input RX_BIAS Input Receive (see Figure 12) Low insertion loss High isolation 5V 0 V (ground) 28 V 28 V Transmit (see Figure 12) High isolation Low insertion loss 5V 28 V 0 V (ground) 0 V (ground) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014 9 DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH Maximum CW Incident Power (W) 60 50 ANT 40 30 RX 20 TX 10 0 25 35 45 55 65 75 85 95 105 115 125 135 145 155 165 175 Temperature on Bottom of Package Ground Plane (°C) Transmit State Figure 10. Transmit Power Derating, Maximum CW Incident Power (Insertion Loss = 0.3 dB) vs Temperature on Bottom of Package Ground Plane ANT RX TX Maximum CW Incident Power (W) 60 50 40 Receive State 30 S2398 20 Figure 12. SKY12207-478LF Equivalent Circuit Diagrams 10 0 25 35 45 55 65 75 85 95 105 115 125 135 145 155 165 175 Temperature on Bottom of Printed Circuit Board (°C) Figure 11. Transmit Power Derating, Maximum CW Incident Power (Insertion Loss = 0.3 dB) vs Temperature on Bottom of Printed Circuit Board Evaluation Board Description The SKY12207-478LF Evaluation Board is used to test the performance of the SKY12207-478LF PIN Diode SPDT switch. An assembly drawing for the Evaluation Board is shown in Figure 13. The layer detail is provided in Figure 14. The SKY12207-478LF is designed to handle very large signals. Sufficient power may be dissipated by this switch to cause heating of the PIN diodes contained in the switch. It is very important to use a printed circuit board design that provides adequate cooling capability to keep the junction temperature of the PIN diodes below their maximum rated operating temperature. As indicated in Figure 10, the x-axis temperature is referenced to the bottom of the QFN package. A printed circuit board with a very low thermal resistance and external heat sink design must be used to achieve the results shown in this Figure. The power derating curve with the x-axis temperature referenced to the bottom of the printed circuit board is provided in Figure 11. derived from positive voltages. The state of the PIN diodes within the SKY12207-478LF is controlled with 5 V applied to the ANT port and bias voltages of either 28 V or 0 V applied to the remaining bias inputs (RX and TX ports). The switch state circuit diagrams are shown in Figure 12. The value of resistor R1, 80 Ω, is selected to provide 50 mA of forward current through the "on" series diode with 5 V applied to the ANT port bias pin. The R2 resistance value of 540 Ω is selected to produce approximately 50 mA of forward bias current in the RX shunt diode with a source voltage of 28 V. The magnitudes of the voltages applied to the TX and RX ports determine which of the RX or TX series diodes is biased into forward conduction. For example, to place the SKY12207-478LF into the transmit state, 0 V is applied to the TX port (which forward biases the diode between pins 2 and 14), 28 V is applied to the RX port (which reverse biases the diode between pins 2 and 7), and 0 V is applied to the RX_BIAS port (which applies a forward bias through R2 to the diode connected between pins 7 and 9). The evaluation circuit is designed to facilitate control of the SKY12207-478LF transmit/receive switch with bias signals Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH Package and Handling Information The component values shown in the Evaluation Board circuit diagram (Figure 15) were selected to optimize performance in the 2.0 to 3.5 GHz band. 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. Refer to Table 8 for the Evaluation Board Bill of Materials. Table 9 provides voltage, current, and resistor values for bias adjustments. The SKY12207-478LF is rated to Moisture Sensitivity Level 1 (MSL1) at 260 C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, Solder Reflow Information, document number 200164. Package Dimensions The PCB layout footprint for the SKY12207-478LF is shown in Figure 15. Typical case markings are noted in Figure 17. Package dimensions for the 16-pin QFN are shown in Figure 18, and tape and reel dimensions are provided in Figure 19. 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. RFC3 GND TX 1 GND ANT ANT DCH1 TX RFC2 DC1 RX_BIAS GND RX 6 RX GND RFC1 S2399 Figure 13. SKY12207-478LF Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014 11 DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH Cross Section Name Thickness (in) Material Top Soldermask L1 (0.0028) Cu foil 0.012 ± 0.0006 Rogers RO4003C Core L2 (0.0014) Cu foil Laminate (Note 1) FR4 Prepreg L3 (0.0014) Cu foil 0.010 ± 0.0006 FR4 Core (0.0028) Cu foil Laminate Laminate L4 Bottom Soldermask Note 1: Adjust this thickness to meet total thickness goal of 0.062 ± 0.005 inches. S2531 Figure 14. Layer Detail Physical Characteristics Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH C3 × 14 1 2 Antenna Port C1 N/C ANT N/C GND N/C N/C RX_BIAS × 11 × × 9 L3 R2 0 V/+28 V DC Bias Input Port 5 L5 6 GND RX GND C6 C9 Receiver Output Port 12 10 N/C × +28 V/0 V Receiver Port Bias Input GND 3 4 Transmitter Port Bias Input C5 GND L1 13 TX C4 15 N/C C8 L2 16 GND R1 +5 V Antenna Port Bias Input 0 V/+28 V Transmitter Input Port 7 8 × C2 NOTE: The N/C pins (4, 5, 10, 11, 12, and 16) are not internally connected, so they can be left open or grounded. S2402 Figure 15. Evaluation Board Schematic Table 8. Evaluation Board Bill of Materials (Note 1) Component Value Size Product Number Manufacturer Mfrr Part Number Characteristics C1, C2, C3, C4, C5, C6, C9 1000 pF 0603 5404R23-057 TDK C1608C0G1H102JT COG, 50 V, ±5% C8 1 μF 0603 5404R29-070 TDK C2012X7R1H104K X7R, 50 V, ±10% 55332R34-028 L1, L2, L5 22 nH 0603 Taiyo-Yuden HK160822NJ-T SRF, 1600 MHz, ±5% L3 560 nH 0603 Coil Craft 0603LS-561XJLB SRF, 525 MHz, ±5% R1 (Note 2) 80 Ω 0603 Panasonic ERJ-3GEYJ161V 0.1 W, 5% R2 (Note 3) 540 Ω Axial leaded (off board) Note 1: Component values selected are based on the desired frequency and bias level. Values may be adjusted for a specific response. Note 2: Two 160 Ω resistors are combined in parallel to achieve a minimum power handling requirement and an 80 Ω resistance. Note 3: Evaluation Board does not include resistor R2. Operating at 28 V and 50 mA requires the R2 resistor with a power dissipation greater than 1.35 W. Table 9. Component Calculation Values VS (V) VDIODE (V) VRES (V) Current (A) Resistance (Ω) Power Dissipation (W) 28 1 27 0.05 540 1.35 28 1 27 0.02 1350 0.54 5 1 4 0.05 80 0.20 5 1 4 0.02 200 0.08 Notes: Vs = supply voltage; VDIODE = voltage drop across the diode; VRES = voltage drop across the resistor. R1 and R2 values are calculated by (Vs – VDIODE)/I, where I is the desired bias current. The power dissipation in R1 or R2 is calculated by I x (VS – VDIODE). The resistor selected must be safely rated with a power greater than the dissipated power. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014 13 DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH 16X 1.45 (To Metal Pads) 0.508 Pitch 0.65 0.762 Typ. 0.325 9X Plated Thru Vias See Detail A Metal GND Pad (Sq.) 2.15 0.30 Exposed Soldering Area 0.75 Detail A S2274 All measurements in millimeters Figure 16. SKY12207-478LF PCB Layout Footprint Pin 1 Indicator Skyworks Part # Lot # Date Code: (YY = Calendar Year WW = Week) Figure 17. Typical Case Markings Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 14 January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH C 4 B Pin 1 Indicator 2.15 +0.10/–0.15 (0.2) Seating Plane (1.075) 0.02 +0.03/–0.02 Pin 1 Indicator (Option B) Exposed Pad Pin 1 Indicator (Option A) 4 (1.075) 0.20 Min. 16X 2.15 +0.10/–0.15 A 0.15 C 2X 2X Detail B Detail A 0.15 C 1.50 ± 0.10 4 0.10 C 0.08 C 16X Side View Top View Bottom View R0.12 Typ. 0.18 R0.20 Pin 1 Indicator 0.55 ± 0.10 0.18 0.345 (0.325) 0.30 +0.05 0.10 M C A B 0.65 0.345 Detail A Detail B Option A Option B Scale: 40X 16 Places Scale: 20X Even Terminal Side Pin 1 Indicator Scale: 10X Pin 1 Indicator Scale: 20X All measurements are in millimeters. Dimensioning and tolerancing according to ASME Y14.5M-1994. Coplanarity applies to the exposed heat sink slug as well as the terminals. Package may have option A or option B pin 1 indicator. S2400a Figure 18. SKY12207-478LF 16-Pin QFN Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014 15 DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH 8.00 0.30 ± 0.05 Ø1.50 +0.1/–0.0 Ø1.50 Min. 0.25 R A R 0.30 Max 1.75 ± 0.10 5.50 ± 0.05 (See Note 3) 4.35 1.80 A A (R0.25) 4.35 0.25 12.0 ± 0.30 2.00 ± 0.05 (See Note 3) 4.00 (See Note 1) Pin 1 Indicator Notes: 1. Sprocket hole pitch cumulative tolerance: ±0.2 mm 2. Carrier tape: black conductive polystyrene. 3. Pocket position relative to sprocket hole, measure as true position of pocket, not pocket hole. 4. Cover tape material: transparent conductive adhesive. 5. ESD surface resistivity must meet all ESD requirements of Skyworks, specified in GP01-D232. 6. All dimensions are in millimeters. Figure 19. SKY12207-478LF Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 16 January 24, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201678D S2817 DATA SHEET • SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH Ordering Information Model Name SKY12207-478LF PIN Diode SPDT Switch Manufacturing Part Number SKY12207-478LF Evaluation Board Part Number SKY12207-478LF-EVB Copyright © 2011-2014 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201678D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 24, 2014 17