DATA SHEET SKY67106-306LF: 1.5-3.0 GHz Two-Stage, High Linearity and High Gain Low-Noise Amplifier Applications CDMA, WCDMA, TD-SCDMA, WiMAX, and LTE cellular infrastructure systems Ultra low-noise, high gain and high linearity systems Features Ultra-low NF: 0.65 dB 1950 MHz High gain: 35 dB 1950 MHz Low quiescent current: 100 mA Stage 1 adjustable gain and current Wideband performance, useable to 3 GHz Figure 1. SKY67106-306LF Block Diagram Small, QFN (16-pin, 4 x 4 mm) Pb-free package (MSL1, 260 C per JEDEC J-STD-020) Description The SKY67106-306LF is a GaAs pHEMT and HBT two-stage, Low- Noise Amplifier (LNA) with active bias and high linearity performance. The pHEMT front end of the device provides an ultra-low Noise Figure (NF) while the HBT output stage provides high gain, linearity, and efficiency. The SKY67106-306LF operates in the frequency range of 1.5 to 3.0 GHz. For lower frequency operation, the pin and layout- compatible SKY67105-306LF (Data Sheet document 201518) should be used. The SKY67106-306LF 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 sales skyworksinc.com www.skyworksinc.com 201521A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice May 17. 2011 1 DATA SHEET SKY67106-306LF TWO-STAGE LNA Figure 2. SKY67106-306LF Pinout 16-Pin QFN (Top View) Table 1. SKY67106-306LF Signal Descriptions Pin Name Description Pin Name Description 1 N/C No connection. May be grounded with no 9 N/C No connection. May be grounded with no change in performance. change in performance. 2 N/C No connection. May be grounded with no 10 RF OUT2 RF output of second stage amplifier change in performance. 3 RF IN1 RF input to first stage amplifier 11 RF OUT2 RF output of second stage amplifier 4 RF GND RF ground for first stage amplifier 12 N/C No connection. May be grounded with no change in performance. 5 VBIAS Bias for first stage amplifier. External 13 N/C No connection. May be grounded with no resistor sets current consumption. change in performance. 6 FB Feedback pin for first stage amplifer. 14 N/C No connection. May be grounded with no change in performance. 7 RF OUT1 RF output of first stage amplifer 15 N/C No connection. May be grounded with no change in performance. 8 RF IN2 RF input to second stage amplifier 16 N/C No connection. May be grounded with no change in performance. Typical performance characteristics of the SKY67106-306LF are Electrical and Mechanical Specifications illustrated in Figures 3 through 15 (1950 MHz) and in Figures 16 The absolute maximum ratings of the SKY67106-306LF are through 28 (2600 MHz). provided in Table 2. Eectrical specifications are provided in Table 3 (1950 MHz) and Table 4 (2600 MHz). Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 May 17. 2011 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 201521A