ꢁWt6223ꢃ
WCDMꢁ/GsM/GPꢃs/Polar ꢀDGꢀ
Power Amplifier Module
with Integrated Power Control
Daꢄa sheeꢄ - ꢃꢀv 2.0
Fꢀꢁtꢂꢃꢀs
•ꢀ InGaP HBT Technology
•ꢀ Optimized for a 50 System
•ꢀ Internal Reference Voltage
•ꢀ Integrated GSM/EDGE Power Control with Tem-
perature Compensation
•ꢀ Low Profile Surface Mount Package:
6 mm x 8 mm x 1 mm
•ꢀ RoHS Compliant Package, 250 oC MSL-3
WCDMꢁ MODꢀ
•ꢀ HSDPA Compliant
•ꢀ High Efficiency:
41% @ POUT = +28.5 dBm
21% @ POUT = +16 dBm
•ꢀ Low Quiescent Current: 12 mA
InGaP HBT MMIC technology to provide reliability,
temperature stability, and ruggedness. This penta-
band module consists of three amplifier chains; one
to support GSM/GPRS/EGPRS in cellular bands, one
to support GSM/GPRS/EGPRS in DCS/PCS bands,
and one to support WCDMA in the IMT band. In ad-
dition, the AWT6223R module includes an internal
reference voltage and integrated power control with
temperature compensation for use in GMSK and
8-PSK modes of operation. These features facilitate
fast and easy production calibration, minimize per-
formance variation over temperature, and reduce the
number of external components required.
•
•
Low Leakage Current in Shutdown Mode: <1 A
Internal Voltage Regulator Eliminates the Need for
External Reference Voltage
The WCDMA PA incorporates ANADIGICS’ HELP2TM
technology. Through selectable bias modes, the
AWT6223R achieves optimal efficiency across
different output power levels, specifically at low
and mid-range power levels where the PA typically
operates, thereby dramatically increasing handset
talk-time and standby-time. Its built-in voltage regulator
eliminates the need for an external reference voltage
and switch components, reducing PCB area and BOM
costs. All of the RF ports for this device are internally
matched to 50 . The RF inputs GSM_IN and DCS/
PCS_IN both have shunt resistors to ground to main-
tain a good input VSWR as the VRAMP power control
voltage is varied. Internal DC blocks are provided at
the RF outputs.
•ꢀ VEN = +2.4 V (+2.2 V min over Temp)
GMsK MODꢀ
•ꢀ +35 dBm GSM850/900 Output Power
•
+33 dBm DCS/PCS Output Power
•ꢀ 55 % GSM850/900 PAE
•ꢀ 50 % DCS/PCS PAE
•ꢀ Power Control Range > 50 dB
•ꢀ EGPRS Capable (class 12)
ꢀDGꢀ MODꢀ
•
•
+29 dBm GSM850/900 Output Power
+28.5 dBm DCS/PCS Output Power
•ꢀ 27 % GSM850/900 PAE
•ꢀ 30 % DCS/PCS PAE
•ꢀ -63 dBc/30 kHz Typical ACPR (400 kHz)
CEXT2
•ꢀ -77 dBc/30 kHz Typical ACPR (600 kHz)
22
VCC_WCDMA
1
2
21
20
19
18
17
WCDMA_IN
ꢁPPLICꢁtIONs
VMODE
WCDMA_OUT
GND
•
3G Handsets, Smartphones, Data Devices Incor-
porating:
Voltage Regulator
and Bias Control
VEN
DCS/PCS_IN
BS
3
DCS/PCS_OUT
4
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
• WCDMA (IMT)
•ꢀGSM850/GSM900/DCS/PCS Bands
• GMSK and 8-PSK (Open Loop Polar)
Modulations
5
GND
6
GND
TX_EN
VBATT
16
15
CMOS Bias/Power
Controller
7
CEXT3
8
CEXT1
GND
14
13
12
PꢃODꢂCt DꢀsCꢃIPtION
9
VRAMP
GND
The AWT6223R WEDGE module supports dual, tri,
or quad band operation using GMSK/GPRS and
8-PSK (open loop polar) modulations, and WCDMA
operation in the IMT band. The AWT6223R mod-
ule is manufactured using ANADIGICS’ advanced
GSM850/900_IN
GSM850/900_OUT
10
11
VCC_GSM
Figure 1: Block Diagram
11/2008