DATA SHEET
SKY66397-12: 2300 to 2700 MHz Wide Instantaneous
Bandwidth High-Efficiency Power Amplifier
Applications Description
The SKY66397-12 is a high-efficiency fully input/output matched
FDD and TDD 2G/3G/4G LTE systems
power amplifier (PA) with high gain and linearity. The compact
3GPP bands 7, 38, and 41 small-cell base stations
5 5 mm PA is designed for FDD and TDD 2G/3G/4G LTE small
Driver amplifier for micro-base and macro-base stations cell base stations operating from 2300 to 2700 MHz. The active
biasing circuitry is integrated to compensate PA performance over
Active antenna array and massive MIMO
temperature, voltage, and process variation.
The SKY66397-12 is part of high-efficiency, pin-to-pin compatible
Features
PA family supporting all 3GPP bands. Table 1 lists the pin-to-pin
compatible parts in the PA family.
High-efficiency: PAE = 35% @ +28 dBm
A block diagram of the SKY66397-12 is shown in Figure 1. The
High linearity: +28 dBm with < -50 dBc ACLR with
device package and pinout for the device are shown in Figure 2.
pre-distortion (40 MHz LTE, 8.5 dB PAR signal)
Signal pin assignments and functional pin descriptions are
High gain: 35 dB
described in Table 2.
Excellent input and output return loss: to 50 system
Table 1. Pin-to-Pin Compatible PA Family
Integrated active bias: performance compensated over temp
Part Number Frequency (MHz) 3GPP Band
Integrated enable On/Off function: PAEN = 1.5 to 2.5 V
SKY66391-12 1800 to 1900 Bands 3 and 9
Single supply voltage: 5.0 V
SKY66399-11 1900 to 2000 Bands 2, 25, 33, 36, and 37
Pin-to-pin compatible PA family supporting all 3GPP bands
SKY66394-11 2000 to 2300 Bands 1, 4, 10, and 23
Compact (16-pin, 5 5 1.3 mm) package
SKY66397-12 2300 to 2700 Bands 7, 38, and 41
(MSL3, 260 C per JEDEC J-STD-020)
TM
Skyworks Green products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
TM
Denition of Green , document number
SQ040074.
VCC1 VBIAS PAEN VCC3
Active Bias
Input Output
RFIN
RFOUT
Match
Match
Stage 2
Stage 1 Stage 3
PA PA PA
204669-001
VCC2
Figure 1. SKY66397-12 Block Diagram
Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 sales@skyworksinc.com www.skyworksinc.com
204669E Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice May 10, 2019 1 DATA SHEET SKY66397-12: 2300 TO 2700 MHz WIDE INSTANTANEOUS BANDWIDTH HIGH-EFFICIENCY PA
16 15 14 13
GND 1 12
VCC3
RFIN 2 11
GND
3
GND 10 GND
GND 4 9 RFOUT
5 6 78
204669-002
Figure 2. SKY66397-12 Pinout
(Top View)
1
Table 2. SKY66397-12 Signal Descriptions
Pin Name Description Pin Name Description
1 GND Ground 9 RFOUT RF output port
2 RFIN RF input port 10 GND Ground
3 GND Ground 11 GND Ground
4 GND Ground 12 VCC3 Stage 3 collector voltage
5 VBIAS Bias voltage 13 GND Ground
6 PAEN PA enable 14 VCC2 Stage 2 collector voltage
7 GND Ground 15 GND Ground
8 GND Ground 16 VCC1 Stage 1 collector voltage
1
The center ground pad must have a low inductance and low thermal resistance connection to the applications printed circuit board ground plane.
Technical Description Electrical and Mechanical Specifications
The matching circuits are contained within the device. An on-chip The absolute maximum ratings of the SKY66397-12 are provided
active bias circuit is included within the device for both input and in Table 3. Recommended operating conditions are specified in
output stages, which provides excellent gain tracking over Table 4, and electrical specifications are provided in Table 5.
temperature and voltage variations.
Typical performance characteristics are shown in Figures 3
The SKY66397-12 is internally matched for maximum output through 16.
power and efficiency. The input and output stages are
independently supplied using the VCC1, VCC2, and VCC3 supply
lines (pins 16, 14, and 12, respectively). The DC control voltage
that sets the bias is supplied by the VCBIAS signal (pin 5).
Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 sales@skyworksinc.com www.skyworksinc.com
2 May 10, 2019 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 204669D
VBIAS VCC1
PAEN GND
VCC2
GND
GND
GND