SKY85402-11 Datasheet, PDF (2/13 Pages) Skyworks Solutions Inc. – Linear output power for IEEE 802.11ac 256-QAM

PRELIMINARY DATA SHEET • SKY85402-11: HIGH-POWER (+22 dBm) 802.11ac WLAN PA
N/U 1
GND ²
RF_IN ³
GND ⁴
PA_EN 5
20 19 18 17 16
6 7 8 9 10
15 GND
14 _GND
13 _{RF_OUT}
12 _GND
11 _GND
S2838a
Figure 2. SKY85402-11 Pinout
(Top View)
Table 1. SKY85402-11 Signal Descriptions
Pin
Name
Description
Pin
Name
Description
1
N/U
Not used; open circuit.
11 GND
Ground
2
GND
Ground
12 GND
Ground
3
RF_IN
RF input
13 RF_OUT
Power amplifier RF output
4
GND
Ground
14 GND
Ground
5
PA_EN
PA enable
15 GND
Ground
6
N/U
Not used; open circuit.
16 GND
Ground
7
N/U
Not used; open circuit.
17 GND
Ground
8
N/U
Not used; open circuit.
18 VCC3
Third stage supply voltage
9
VCC3
Third stage supply voltage
19 VCC2
Second stage supply voltage
10 VDET
Analog power detector output
20 VCC1
First stage supply voltage
Technical Description
The SKY85402-11 PA contains all of the needed RF matching and
DC biasing circuits. The device also provides an output power
detector voltage.
The SKY85402-11 is a three-stage, SiGe BiCMOS device
optimized for high linearity and power efficiency. These features
make the device suitable for wideband digital applications, where
PA linearity and power consumption are of critical importance
(e.g., WiFi systems or WLANs).
The device has been characterized with the highest specified data
rates for IEEE802.11ac (256 QAM). Under these stringent test
conditions, the device exhibits excellent spectral purity and power
efficiency.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY85402-11 are provided
in Table 2. Recommended operating conditions are specified in
Table 3. Electrical specifications are provided in Tables 4, 5,
and 6.
Typical performance characteristics of the SKY85402-11 are
illustrated in Figures 3 through 9.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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June 2, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202120I