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PDF AWT6278 Data sheet ( Hoja de datos )
| Número de pieza | AWT6278 | |
| Descripción | HELP3 PCS/WCDMA 3.4 V/29.5 dBm HSPA Linear Power Amplifier Module | |
| Fabricantes | ANADIGICS | |
| Logotipo |  |
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FEATURES
• InGaP HBT Technology
• High Efficiency:
41 % @ POUT = +29.5 dBm
21 % @ POUT = +16 dBm
9 % @ POUT = +8 dBm
ww• w.LDoawtaQShueieest4cUen.ctoCmurrent: 8 mA
• Low Leakage Current in Shutdown Mode: <1 µA
• Internal Voltage Regulator Eliminates the Need
for External Reference Voltage
• Optimized for a 50 Ω System
• Low Profile Miniature Surface Mount Package
• RoHS Compliant Package, 250 oC MSL-3
• HSPA Compliant (no backoff)
APPLICATIONS
• WCDMA/HSPA PCS-Band Wireless Handsets
and Data Devices
PRODUCT DESCRIPTION
The AWT6278 HELP3TM PA is the 3rd generation
WCDMA product for UMTS handsets. This PA
incorporates ANADIGICS’ HELP3TM technology to
provide low power consumption without the need for an
external voltage regulator. The device is manufactured
on an advanced InGaP HBT MMIC technology offering
state-of-the-art reliability, temperature stability, and
ruggedness. There are three selectable bias modes
that optimize efficiency for different output power
levels, and a shutdown mode with low leakage
AWT6278
HELP3TM PCS/WCDMA 3.4 V/29.5 dBm
HSPA Linear Power Amplifier Module
Data Sheet - Rev 2.2
AWT6278R
M20 Package
10 Pin 4 mm x 4 mm x 1 mm
Surface Mount Module
current, increase handset talk and standby time. The
self-contained 4 mm x 4 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)
VBATT 1
10 VCC
RFIN 2
9 GND
VMODE2 3
8 RFOUT
VMODE1 4
Bias Control
Voltage Regulation
7 GND
VENABLE 5
6 GND
Figure 1: Block Diagram
11/2008
1 page  
APPLICATION INFORMATION
AWT6278
To ensure proper performance, refer to all related
Application Notes on the ANADIGICS web site:
http://www.anadigics.com
logic level (see Operating Ranges table) to the VMODE
voltages. The Bias Control table lists the recommended
modes of operation for various applications.
Shutdown Mode
The power amplifier may be placed in a shutdown
mode by applying logic low levels (see Operating
Ranges table) to the VENABLE, VMODE1 and VMODE2
voltages.
Bias Modes
wwThwe.DpaotwaeSrhaemetp4lUifi.ecrommay be placed in either a Low Bias
mode or a High Bias mode by applying the appropriate
Three operating modes are recommended to optimize
current consumption. High Bias/High Power operating
mode is for POUT levels > 16 dBm. At ~16dBm - 7
dBm, the PA should be “Mode Switched” to Medium
Power Mode. For POUT levels < ~8 dBm, the PA can be
switched to Low Power Mode for even lower quiescent
current consumption.
APPLICATION
WCDMA - low power
(Low Bias Mode)
WCDMA - med power
(Medium Bias Mode)
WCDMA - high power
(High Bias Mode)
Optional lower VCC in
low power mode
Shutdown
POUT
LEVELS
Table 5: Bias Control
BIAS
MODE
VENABLE
VMODE1
< +8 dBm
Low +2.4 V +2.4 V
7 POUT <
+16 dBm
Low +2.4 V +2.4 V
> +16 dBm High +2.4 V 0 V
< +7 dBm
Low +2.4 V +2.4 V
-
Shutdown 0 V
0V
VMODE2
+2.4 V
0V
0V
2.4 V
0V
VCC
3.2 - 4.2 V
3.2 - 4.2 V
3.2 - 4.2 V
1.5 V
3.2 - 4.2 V
VBATT
> 3.2 V
> 3.2 V
> 3.2 V
> 3.2 V
> 3.2 V
VBATT
C5
2.2 µF
RF IN
VMODE2
VMODE1
VENABLE
C1
0.01µF
1 VBATT
2 RFIN
3 VMODE2
4 VMODE1
5 VENABLE
C2
0.01µF
VCC
GND
RFOUT
GND
10
9
8
7
GND 6
GND
at slug
C3
0.01µF
10K
Optional
pull-down
Figure 3: Application Circuit Schematic
VCC
C4
2.2µF ceramic
RF OUT
Data Sheet - Rev 2.2
11/2008
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AWT6278.PDF ] | |
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