DATA SHEET SKY66185-11: 851 to 894 MHz Linear Power Amplifier Applications VCC1 VBIAS VCC3 3G/4G LTE Bands 5, 6, 18, 19, 26, and 27 small cell VEN Active distributed antenna system Cellular repeaters Active Bias RFOUT Coupling Port Driver amplifier Output Input RFOUT RFIN Match Match Features Input Stage Output Stage 203345-001 High gain: 36.5 dB (unconditionally stable) Figure 1. SKY66185-11 Linear PA Block Diagram High linearity: +23 dBm with -50 dBc ACLR 85C (WCDMA Test Model 1 with 64 DPCH) RF input and output internally matched to 50 Description Excellent output return loss: <-15 dB The SKY66185-11 is a high-linearity power amplifier (PA) with fully matched input/output and high gain. The compact 5 x 5 mm Integrated active bias: performance compensated over temp PA is designed for FDD 3G/4G LTE small cell base stations PA On/Off function: 6.5 s switching time operating from 851 to 894 MHz. The active biasing circuitry is Integrated coupler for output power monitoring integrated to compensate PA performance over temperature, voltage, and process variation as well as an internal coupler for Single supply voltage: 3.3 V power monitoring. Minimal external components The SKY66185-11 requires minimal external components and is Pin-to-pin compatible PA family supporting all 3GPP bands part of a high-linearity, pin-to-pin compatible PA family Small 5 x 5 mm, 28-pin package supporting all 3GPP bands. Table 1 lists the pin-to-pin compatible (MSL3, 260 C per JEDEC J-STD-020) parts in the PA family. A block diagram of the SKY66185-11 is shown in Figure 1. The device package and pinout for the 28-pin device are shown in TM Skyworks Green products are compliant with Figure 2. all applicable legislation and are halogen-free. For additional information, refer to Skyworks TM Denition of Green , document number Table 1. Pin-to-Pin Compatible PA Family SQ040074. Part Number Frequency (MHz) LTE Band SKY66181-11 1805 to 1880 3 SKY66184-11 2110 to 2170 1, 4, 10, and 23 SKY66185-11 851 to 894 5, 6, 18, 19, 26, and 27 SKY66186-11 728 to 768 12, 13, 14, and 17 SKY66187-11 2620 to 2690 7 SKY66188-11 758 to 803 28 SKY66189-11 1930 to 1995 2 and 25 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 203354G Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice March 3, 2020 1 DATA SHEET SKY66185-11: 851 TO 894 MHz LINEAR POWER AMPLIFIER 28 27 26 25 24 23 22 GND 21 GND 1 GND 20 GND 2 N/C 19 RFOUT 3 RFIN 18 N/C 4 N/C 17 N/C 5 GND 16 GND 6 VEN 15 GND 7 819 0 11 12 13 14 203354C-002 Figure 2. SKY66185-11 Pinout (Top View) Table 2. SKY66185-11 Signal Descriptions Pin Name Description Pin Name Description 1 GND Ground 15 GND Ground 2 GND Ground 16 GND Ground 3 N/C No internal connection 17 N/C No internal connection 4 RFIN RF input 18 N/C No internal connection 5 N/C No internal connection 19 RFOUT RF output 6 GND Ground 20 GND Ground 7 VEN Enable (active low) 21 GND Ground 8 N/C No internal connection 22 N/C No internal connection 9 N/C No internal connection 23 VCC3 Output stage supply voltage 10 VBIAS Bias voltage 24 N/C No internal connection 11 GND Ground 25 GND Ground 12 N/C No internal connection 26 N/C No internal connection 13 GND Ground 27 GND Ground 14 RFOUT COUP RF output coupling port 28 VCC1 Input stage supply voltage Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 203354G Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice March 3, 2020 2 N/C VCC1 N/C GND VBIAS N/C GND GND N/C N/C GND VCC3 RFOUT COUP N/C