DATA SHEET
SKY65605-21: BDS/GPS/GNSS Low-Noise Amplifier
Applications
BDS/GPS/GNSS radio receivers
Global Navigation Satellite Systems (GLONASS)
Smartphones
Enable
Tablet/laptop PCs
Personal navigation devices
Input
Match
Output
Match
LNA
RF_OUT
RF_IN
Features
Y2224
Small signal gain: 19 dB typical
Figure 1. SKY65605-21 Block Diagram
High in-band IIP3: –5 dBm
Low noise figure: 0.6 dB typical
High IP1dB: –14.5 dBm
Description
The SKY65605-21 is a Microwave Monolithic Integrated Circuit
(MMIC) front-end low-noise amplifier (LNA) designed for BeiDou
Satellite Navigation System/Global Positioning System/Global
Navigation Satellite System (BDS/GPS/GNSS) receiver
applications. The device provides high linearity, excellent gain, a
high 1 dB input compression point (IP1dB), and a superior noise
figure (NF).
Low current consumption: 3.6 mA
Input/output impedance internally matched to 50 Ω
Single DC supply: 1.8 to 2.85 V
Minimal number of external components required
Ultra-small QFN (6-pin, 0.7 x 1.1 mm) package
(MSL1, 260 C per JEDEC J-STD-020)
The SKY65605-21 is optimized to operate from 1.559 to
1.606 GHz, which makes it ideal for BDS/GPS/GNSS radio
receiver applications.
Skyworks GreenTM products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of GreenTM, document number
SQ04–0074.
The SKY65605-21 is fabricated using advanced SiGe BiCMOS
technology. The LNA uses surface-mount technology (SMT) in the
form of a 0.7 x 1.1 mm Quad Flat No-Lead (QFN) package, which
allows for a highly manufacturable and 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.
VEN
GND
RF_IN
5
6
4
1
2
3
GND
VCC
RF_OUT
Figure 2. SKY65605-21 Pinout
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
203118D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • August 19, 2015
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