DATA SHEET SKY65387-11: 2110-2170 MHz Variable Gain Amplifier Applications Description Skyworks SKY65387-11 is a high linearity, Variable Gain Amplifier WCDMA base stations (VGA) module. The device includes an input Low-Noise Amplifier Femto cells (LNA), a variable voltage attenuator, and an output Power Amplifier (PA). The two amplifiers and voltage attenuator are optimized for superior ACLR performance with WCDMA signals. Features The high linearity (high OP1dB, OIP3, and ACLR) and high Frequency range: 2110 to 2170 MHz efficiency of this device make it ideal for use at the final stage (or High gain: >30 dB close to the final stage) of a WCDMA transmit chain. Attenuation range: > 35 dB The output of the first PA (PA1) is matched to the input of the VCA. OP1dB: >+28 dBm The output of the VCA is matched to the input of the second PA ACLR < 65 dBc for POUT = +12 dBm (PA2). The RF IN and RF OUT signals (pins 1 and 8, respectively) are both internally matched, including DC blocking capacitors. Single DC supply: +5 V The SKY65387-11 VGA uses low-cost Surface Mount Technology Small MCM (12-pin, 8.385 x 8.385 mm) SMT package (MSL3, (SMT) in the form of a compact, 8 x 8 mm 12-pin Multi-Chip 260 C per JEDEC J-STD-020) Module (MCM), which allows for a highly manufacturable low-cost solution. 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. Figure 1. SKY65387-11 Block Diagram Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 202310B Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice May 22, 2013 1 DATA SHEET SKY65387-11 VGA Figure 2. SKY65387-11 Pinout 12-Pin MCM (Top View) Table 1. SKY65387-11 Signal Descriptions Pin Name Description Pin Name Description 1 RF IN RF input 7 GND Ground 2 GND Ground 8 RF OUT RF output 3 VCTRL Variable attenuator control voltage 9 GND Ground 4 GND Ground 10 VCC AMP2 Voltage supply for PA2 (after the variable voltage attenuator) 5 GND Ground 11 VCC AMP1 Voltage supply for PA1 (before the variable voltage attenuator) 6 GND Ground 12 GND Ground Typical performance characteristics of the SKY65387-11 are Electrical and Mechanical Specifications illustrated in Figures 3 through 9. The absolute maximum ratings of the SKY65387-11 are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 May 22, 2013 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 202310B