Skywork LTE Module Specifications
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204649A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 23, 2017 1
PRODUCT SUMMARY
SKY68011-31: LTE Multi-Band Front-End Module for IoT
Applications
Cellular IoT modem devices targeting low-power wide area
network (LPWAN):
4G LTE technology capability
Dedicated LTE half-duplex operation (HD-FDD) for
CAT0/CATM1/CATNB1
Designed to meet 3GPP Rel-12 and Rel-13 specifications
(with compatible cellular transceiver)
LTE multi-band modem products (low-band and mid-band):
Low-band B12/B13/B17
Mid-band B2/B25/B4/B1/B66
PAE optimized for Class 3 LTE output power (+23 dBm)
Features
Cost-optimized front end for low-data-rate applications
Low-loss post-PA transmit front end for enhanced transmitter
efficiency (compared to LTE-FDD radio front ends)
Multi-band PA supporting APT mode of operation or Vcc fixed
supply (≥ 2.85 V)
Integrated low-pass filters for harmonic rejection to comply with
spurious emission requirements
Integrated SP6T antenna Tx/Rx switch
Integrated Rx SAW filters for out of band rejection for low-band
(B12/B13/B17) and mid-band (B2/B25/B4/B1/B66)
Optimized to support LTE for 1 to 36 RB
MIPI RFFE control interface, 2.0 compliant
Pin-to-pin compatible with the SKY68000-31 and SKY68001-31
Additional Aux port offers greater flexibility for more bands on
the Tx or Rx path
Adaptive biasing scheme for maximum PA efficiencies
Small, low-profile package (4 mm x 5 mm x 0.9 mm)
(MSL3 @ 260 °C per JEDEC J-STD-020)
Lead (Pb)-free and RoHS-compliant
Skyworks Green
TM
products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green
TM
, document number
SQ04–0074.
Description
The SKY68011-31 is a hybrid, multi-band multi-chip RF front-end
(RFFE) module supporting cellular LTE for CAT0/CATM1/CATNB1
(half-duplex system) transceiver platforms. The module integrates
the entire RF front end necessary for an LTE multi-band radio
operating in low-band B12/B13/B17 and mid-band
B2/B25/B4/B1/B66 including Rx SAW filters, broadband PA with
bias controller, Tx low-pass harmonic filter, antenna switch and
MIPI RFFE controller.
Tx Section
The PA load-line is optimized for high efficiency while
simultaneously meeting 3GPP ACLR and emissions mask
specifications with LTE up to 36 RB. An integrated LPF is
implemented to reject the PA and transceiver harmonics while at
the same time minimizing any post PA loss for an optimized
transmit current consumption. Out-of-band emissions
performance is emphasized by the design to be compliant for
B12/B13/B17 and B2/B25/B4/B1/B66.
Rx Section
Receive SAW filters are integrated in to the module along with the
necessary matching yielding a 50 Ω single-ended impedance for
the antenna and Rx ports. The SAW filters provide a high level of
rejection to out-of-band interferers protecting the transceiver from
high blocking signal levels and to support 3GPP LTE blocking test
conformance. The Rx SAW filters cascaded with the low throw
count switch establishes a lower insertion loss and noise figure
than conventional LTE receivers.
Auxiliary Path
The Aux pin is an additional broadband port that can be used for
either the Tx or Rx path (including high-band).
MIPI RFFE Controller Interface
The SKY68011-31 functional operation is fully controllable by a
single MIPI interface which is used to drive the PA in various
optimized bias modes as well as providing band selection and
controlling the antenna switch Tx, Rx and band selection.
Figure 1 shows the block diagram for the SKY68011-31.