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參數(shù)資料
| 型號(hào)： | AWT6281RM20P8 |
| 廠商： | ANADIGICS INC |
| 元件分類： | 放大器 |
| 英文描述： | 880 MHz - 915 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER |
| 封裝： | 4 X 4 MM, 1.10 MM HEIGHT, ROHS COMPLIANT, MINIATURE, M20, 10 PIN |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大?。?/td> | 438K |
| 代理商： | AWT6281RM20P8 |
Data Sheet - Rev 2.4
11/2008
AWT6281
5
APPLICATION INFORMATION
To ensure proper performance, refer to all related
Application Notes on the ANADIGICS web site:
http://www.anadigics.com
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
The power amplifier may be placed in either a Low Bias
mode or a High Bias mode by applying the appropriate
logic level (see Operating Ranges table) to the VMODE
Table 5: Bias Control
voltages. The Bias Control table lists the recommended
modes of operation for various applications.
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
Bias Mode. For POUT levels < ~8 dBm, the PA can
be switched to Low Bias/Low Power Mode used for
this POUT range for even lower quiescent current
consumption.
Figure 3: Application Circuit Schematic
APPLICATION
POUT
LEVELS
BIAS
MODE
VENABLE
VMODE1
VMODE2
VCC
VBATT
WCDMA - low power
(Low Bias Mode)
< +8 dBm
Low
+2.4 V
3.2 - 4.2 V
> 3.2 V
WCDMA - med power
(Medium Bias Mode)
< +16 dBm
Low
+2.4 V
0 V
3.2 - 4.2 V
> 3.2 V
WCDMA - high power
(High Bias Mode)
> +16 dBm
High
+2.4 V
0 V
3.2 - 4.2 V
> 3.2 V
Optional lower VCC in
low power mode
< +7 dBm
Low
+2.4 V
2.4 V
1.5 V
> 3.2 V
Shutdown
-
Shutdown
0 V
3.2 - 4.2 V
> 3.2 V
C3
0.01F
C4
2.2F ceramic
GND
at slug
RF IN
1
6
7
10
8
5
4
3
VENABLE
VMODE1
GND
RFIN
GND
VCC
VBATT
GND
RFOUT
VCC
C1
0.01F
VBATT
VMODE1
VENABLE
C2 0.01 F
RF OUT
VMODE2
29
VMODE2
C5
2.2 F
10K
Optional
pull-down
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