ALT6708 Datasheet, PDF (1/11 Pages) ANADIGICS, Inc – HELP4 UMTS900 (Band 8) WCDMA, LTE Linear PAM

FEATURES
• HSPA, LTE Compliant
• 4th Generation HELP^TM technology
• High Efficiency (R99 waveform):
•40 % @ POUT = +28.8 dBm
•26 % @ POUT = +17 dBm
•17 % @ POUT = +13.5 dBm
•18 % @ POUT = +7.5 dBm
•10 % @ POUT = +3.5 dBm
• Low Quiescent Current: 3 mA
• Low Leakage Current in Shutdown Mode: <5 µA
• Internal Voltage Regulator
• Integrated “daisy chainable” directional coupler
with CPLIN and CPLOUT port.
• Internal DC Blocks on all RF ports
• Optimized for a 50 Ω System
• 1.8V Control Logic
• RoHS Compliant Package, 260 ^oC MSL-3
APPLICATIONS
• Band 8 LTE Wireless Devices
• Band 8 (EGSM) WCDMA/HSPA Wireless
Devices
ALT6708
HELP4^TM UMTS900 (Band 8)
WCDMA, LTE Linear PAM
Data Sheet - Rev 2.3
ALT6708
M45 Package
10 Pin 3 mm x 3 mm x 1 mm
Surface Mount Module
integrated in the module, thus eliminating the need of
an external coupler. The self-contained3 mm x 3 mm
x 1 mm surface mount package incorporates matching
networks optimized for output power, efficiency, and
linearity in a 50 Ω system.
GND at Slug (pad)
PRODUCT DESCRIPTION
The ALT6708 HELP4^TM PA is a 4th generation HELP^TM
product for LTE and WCDMA devices operating in
UMTS900 (Band 8) . This PA incorporates ANADIGICS’
HELP4^TM technology to deliver exceptional efficiency
at low power levels and low quiescent current without
the need for external voltage regulators or converters.
The device is manufactured using advanced InGaP-
Plus^TM HBT technology offering state-of-the-art
reliability, temperature stability, and ruggedness.
Three selectable bias modes that optimize efficiency
for different output power levels and a shutdown mode
with low leakage current increase handset talk and
standby time. A “daisy chainable” directional coupler is
VBATT
1
RFIN ²
VMODE2
3
VMODE1
4
VEN ⁵
10 _VCC
CPL
9
RFOUT
Bias Control
Voltage Regulation
8 _CPLIN
7 _GND
6 _CPLOUT
Figure 1: Block Diagram
03/2012