DATA SHEET SKY65385-11: 791 to 821 MHz Variable Gain Amplifier Applications WCDMA base stations VCTRL Femto cells PA1 Input Match Output Match Features RF IN PA2 RF OUT Variable Frequency range: 791 to 821 MHz Attenuator High gain: > 34 dB 201750-001 Attenuation range: > 30 dB Figure 1. SKY65385-11 Block Diagram OP1dB: > +30 dBm ACLR < -65 dBc for POUT = +12 dBm Description Single DC supply: +5 V The Skyworks SKY65385-11 is a high-linearity, variable gain amplifier (VGA) module. The device includes an input amplifier Small MCM (12-pin, 8.385 x 8.385 mm) SMT package driver, a variable voltage attenuator (VVA), and an output power (MSL3, 260 C per JEDEC J-STD-020) amplifier (PA). The two amplifiers and voltage attenuator are optimized for superior ACLR performance with WCDMA signals. TM Skyworks Green products are compliant with The high linearity (high OP1dB, OIP3, and ACLR) and high all applicable legislation and are halogen-free. efficiency of this device make it ideal for use at the final stage (or For additional information, refer to Skyworks close to the final stage) of a WCDMA transmit chain. TM Denition of Green , document number The output of the first PA (PA1) is matched to the input of the VVA. SQ040074. The output of the VVA is matched to the input of the second PA (PA2). The RF IN and RF OUT signals (pins 1 and 8, respectively) are both internally matched, including DC blocking capacitors. The SKY65385-11 VGA uses low-cost surface mount technology (SMT) in the form of a compact, 8 x 8 mm 12-pin Multi-Chip Module (MCM), which allows for a highly manufacturable low-cost 12 11 10 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 1 9 RF IN GND Table 1. GND 2 8 RF OUT 3 VCTRL 7 GND 45 6 S2328 Figure 2. SKY65385-11 Pinout (Top View) Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 201750D Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice May 15, 2019 1 GND GND GND VCC AMP1 GND VCC AMP2DATA SHEET SKY65385-11: VARIABLE GAIN AMPLIFIER Table 1. SKY65385-11 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 10 Voltage supply for PA2 (after the variable GND Ground VCC AMP2 voltage attenuator) 5 11 Voltage supply for PA1 (before the variable GND Ground VCC AMP1 voltage attenuator) 6 GND Ground 12 GND Ground Electrical and Mechanical Specifications The absolute maximum ratings of the SKY65385-11 are provided Typical performance characteristics of the SKY65385-11 are in Table 2. The recommended operating conditions are specified illustrated in Figures 3 to 12. in Table 3 and electrical specifications are provided in Table 4. 1 Table 2. SKY65385-11 Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Supply voltage VCC AMP1, VCC AMP2 5.5 V Control voltage VCTL 5.0 V RF output power (CW) POUT +29 dBm Operating case temperature TC 40 +85 C Storage case temperature TSTG 55 +125 C Junction temperature TJ +150 C Thermal resistance (POUT = +12 dBm) R 24 C/W Electrostatic discharge: ESD Charged Device Model (CDM), Class 3 500 V Human Body Model (HBM), Class 1B 500 V Machine Model (MM), Class A 50 V 1 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. ESD HANDLING: 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 when handling or transporting. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD handling precautions should be used at all times. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 May 15, 2019 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 201750D