Skywork LTE Module Specifications

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
204648B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 15, 2017 1
PRODUCT SUMMARY
SKY68001-31: LTE Universal 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
Cat-M1/Cat-NB1
 Designed to meet 3GPP Rel-12 and Rel-13 specifications
(with compatible cellular transceiver)
 LTE universal modem products (low-band and mid-band):
 Low-band B5/B8/B12/B13/B17/B18/B19/B20/B26
 Mid-band B1/B2/B3/B4/B25/B39/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)
 Broadband 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 low-pass filters for out-of-band rejection
 Optimized to support LTE for 1 to 12 RB
 MIPI RFFE control interface, 2.0 compliant
 Pin-to-pin compatible with the SKY68000-31 and SKY68011-31
 Two additional Aux ports offer 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.
PA
PA
MB TX
LB TX
MB RX
LB RX
Rx LPF
Tx LPF
MIPI
204523-001
ANT
AUX2
AUX1
Figure 1. SKY68001-31 Functional Block Diagram
Description
The SKY68001-31 is a hybrid, multi-band multi-chip RF front-end
(RFFE) module supporting cellular LTE 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 B5/B8/B12/B13/B17/B18/B19/B20/B26
and mid-band B1/B2/B3/B4/B25/B39/B66 frequencies, including
Rx low-pass 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 12 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 3GPP-compliant
for B5/B8/B12/B13/B17/B18/B19/B20/B26 and mid-band
B1/B2/B3/B4/B25/B39/B66.
Rx Section
Receive low-pass filters are integrated into the module along with
the necessary matching to yield a 50 Ω single-ended impedance
for the antenna and Rx ports. The 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 low-pass filters are cascaded with the
low throw count switch to establish a lower insertion loss and
noise figure than conventional LTE receivers.