NCT-L1300 Envelope Tracking IC for LTE Smartphones and

Colour Samples Taken from PSD file
COOLTEQ Dark Grey Blue
WEB: R = 0% G = 109% B = 168%
PRINT: C = 97% M = 54% Y = 12% K = 0%
world leader in Envelope Tracking
COOLTEQ Light Blue
WEB: R = 0% G = 177% B = 240%
PRINT: C = 93% M = 0% Y = 0% K = 0%
COOLTEQ Green
WEB: R = 128% G = 195% B = 66%
PRINT: C = 55% M = 0% Y = 100% K = 0%
COOLTEQ Bright Orange
WEB: R = 253% G = 185% B = 19%
PRINT: C = 0% M = 30% Y = 100% K = 0%
NCT-L1300 Envelope Tracking IC
for LTE Smartphones and Modems
Nujira’s Coolteq.L family of Envelope Tracking Power
Amplifier power supply modulators are the industry’s highest
performance ET chips for 3G and 4G smartphones.
Supporting the full 20 MHz bandwidth needed for LTE,
the NCT-L1300 delivers twice the power savings of lower
bandwidth ET or fast switching APT components.
Features
Using industry-standard MIPI RFFE and eTrak interfaces,
Coolteq.L is compatible with the vast majority of ET-ready LTE
platform chipsets. Fast mode transition times and a simple,
single-byte MIPI RFFE mode change command make it easy
for chipset vendors to integrate the NCT-L1300.
• 20MHz RF channel bandwidth in ET mode
The high slew rate, low output impedance and wide voltage
swing range of the NCT-L1300 allows simple ISOGAIN™
linearization of most GaAs and CMOS PAs, without needing
complex Digital PreDistortion in the chipset.
The high power output capability and buck-boost architecture
eliminates the need for MPR, typically delivering 28dBm or
more at the PA output, even for LTE signals with high PAPR.
Fully backed by Nujira’s world class ET systems expertise and
support, and protected by more than 200 patents worldwide,
the NCT-L1300 makes Envelope Tracking easy.
• Support for 3G, FD-LTE and TD-LTE waveforms
• Wide 0.5V - 4.5V output swing range
• Does not require DPD
• Supports low battery voltages down to 2.5V
• 80% efficient
• 1.2W average output power
• Low output impedance for driving multiple PAs
• Compatible with all ET-ready GaAs and CMOS PAs
• MIPI RFFE controlled ET and APT modes
• Fast mode transition time (2 us typical)
• MIPI eTrak/OpenET analog envelope interface
• ISOGAIN™ feedforward PA linearization
• ACLR/EVM compliance under load mismatch
• 0.18u CMOS process, WL-CSP package
Colour Samples Taken from PSD file
COOLTEQ Dark Grey Blue
WEB: R = 0% G = 109% B = 168%
PRINT: C = 97% M = 54% Y = 12% K = 0%
COOLTEQ Light Blue
WEB: R = 0% G = 177% B = 240%
PRINT: C = 93% M = 0% Y = 0% K = 0%
world leader in Envelope Tracking
COOLTEQ Green
WEB: R = 128% G = 195% B = 66%
PRINT: C = 55% M = 0% Y = 100% K = 0%
COOLTEQ Bright Orange
WEB: R = 253% G = 185% B = 19%
PRINT: C = 0% M = 30% Y = 100% K = 0%
Nujira’s patented
ISOGAIN™ linearization
delivers improved
linearity, ACPR and
EVM, without requiring
complex DPD.
27 dBm LTE
10-15dB ACPR
improvement with
Coolteq.L ET
APT mode
-34 dBc
20%
saving
30%
saving
25%
saving
Lower
Power
30
This enables terminals
to deliver full power 23
dBm LTE signals to the
antenna, eliminating the
need for MPR, improving
network coverage,
boosting data rates, and
minimising power drain.
ISOGAIN also delivers
significant ACPR and
EVM improvements into
heavily mismatched
antenna loads,
delivering cleaner
signals and more output
power in real-world
conditions.
Coolteq.L
ET mode
-48 dBc
Cool
Smaller
Products
Measurements of
commercial GaAs PA
at 23dBm transmitted
RF power comparing
traditional DC/DC
converter and Coolteq.L
Envelope Tracking
DC/DC converter
20
40
50
10
Mbps
Faster
Data
Global
Better
Coverage
Nujira’s Coolteq.L Envelope Tracking IC
replaces a traditional DC/DC converter,
boosting PA efficiency to 50% and
beyond, even for LTE signals with high
peak-to-average ratios.
The high bandwidth and wide ET swing
range of Coolteq.L can linearize the PA
without DPD, delivering up to 10 dB
of ACLR improvement using a simple,
feed-forward architecture.
Targeted at 4G smartphones and
data modems, Coolteq.L saves power,
boosts data rates, improves signal
coverage and reduces temperature,
enabling terminals to deliver a true 4G
experience.
Coolteq ET modulator
PA dissipation (DC/DC)
PA dissipation (Coolteq)
RF front end losses
Transmitted RF (200mW)
3G
(W-CDMA)
4G
(LTE QPSK)
4G
(LTE QAM)
Measured ET
instantaneous
PA efficiency
With Coolteq.L’s wide dynamic swing range, power consumption is much less
dependent on signal PAPR, enabling multiband, multimode PAs to transmit full
power high data-rate 20 MHz LTE signals using less energy than today’s singleband 3G PAs.
Measured fixed supply
instantaneous
PA efficiency
NCT-L1300 IC Specification
Input voltage range
2.5V to 5.25V
Output voltage range
0.5V to 4.5V
Output power
1.2W average, 4.5W peak
RF Channel Bandwidth
20 MHz
Efficiency
80%
Envelope interface
MIPI eTrak/OpenET analog differential
Control interface
MIPI RFFE
Nujira is a proud member of
www.nujira.com
Nujira Ltd, Building 1010, Cambourne Business Park, Cambourne, Cambridge, CB23 6DP Tel. +44 (0)1223 597900 Fax. +44 (0)1223 597972
Colour Samples Taken
01/02/14
Dark Blue
WEB: R = 29% G = 86%
PRINT: C = 94% M = 74
Light Blue
WEB: R = 0% G = 180%
PRINT: C = 69% M = 8%
Colour Samples Taken

Download Report