02/2012
ALT6720
HELP4TM E800 (Band 20)
LTE Linear PAM
Data Sheet - Rev 2.2
M45 Package
10 Pin 3 mm x 3 mm x 1 mm
Surface Mount Module
Figure 1: Block Diagram
FEATURES
• LTECompliant
• 4thGenerationHELPTMtechnology
• HighEfciency(LTEMPR=0dB):
•36%@POUT=+27.5dBm
•23%@POUT=+16dBm
•16%@POUT=+7dBm
• LowQuiescentCurrent:3mA
• LowLeakageCurrentinShutdownMode:<5µA
• InternalVoltageRegulator
• Integrated“daisychainable”directionalcoupler
withCPLINandCPLOUTport.
• InternalDCblockonIN/OUTRFports
• Optimizedfora50ΩSystem
• 1.8VControlLogic
• RoHSCompliantPackage,260oCMSL-3
APPLICATIONS
• Band20LTEWirelessDevices
PRODUCT DESCRIPTION
TheALT6720HELP4TMPAisa4thgenerationHELPTM
productforLTEdevicesoperatinginE800MHzBand
20.This PA incorporatesANADIGICS’ HELP4TM
technology to deliver exceptional efciency at low
powerlevels andlow quiescentcurrent withoutthe
need for external voltage regulators or converters.
ThedeviceismanufacturedusingadvancedInGaP-
PlusTM HBT technology offering state-of-the-art
reliability, temperature stability, and ruggedness.
Threeselectablebiasmodesthatoptimizeefciency
for different output power levels and a shutdown
mode with low leakage current increase handset
talkandstandbytime.A“daisychainable”directional
couplerisintegratedinthemodule,thuseliminating
theneedofanexternalcoupler.Theself-contained
3 mm x 3 mm x 1 mm surface mount package
incorporatesmatchingnetworksoptimizedforoutput
power, efciency, and linearity in a 50 Ω system.
1
2
3
4
5
10
9
8
7
6
V
BATT
RF
IN
V
MODE2
V
MODE1
V
EN
CPL
OUT
GND
CPL
IN
RF
OUT
V
CC
Bias Control
Voltage Regulation
CPL
GND at Slug (pad)
ALT6720