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參數(shù)資料
| 型號： | AWT0908 |
| 廠商： | ANADIGICS INC |
| 元件分類： | 放大器 |
| 英文描述： | RF/MICROWAVE NARROW BAND HIGH POWER AMPLIFIER |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 57K |
| 代理商： | AWT0908 |
This data sheet contains technical information about product ANADIGICS is planning to introduce. The data and product
specifications are subject to change prior to formal introduction. Please note: This device is NOT to be used for device
qualification or production.
35 Technology Drive, Warren NJ 07059
z
(908)668 5000
z
(908)668 5132
z
Email: mktg@anadigics.com 10/07/98 4
Pin
1
2
3
Signal
GND
RF
IN
V
REF
Description
RF and DC Ground
RF power input, DC blocked
Output Power control, Should be set to level that
corresponds to the desired output power Pulse control
voltage (V
REF
, 0 to 4 V)
Bias circuit Supply (+ 4.8 V, 5 ma )
Negative Supply (-4.5V) generated by the dc/dc converter
RF and DC Ground (The “Batwing”)
The output of the dc/dc converter providing the negative
voltage
Pump capacitor (C5) which is part of the dc/dc converter
circuit.
DC/DC converter positive supply
AC and DC ground for the dc/dc converter .If possible
should be grounded through a separate via hole .
RF and DC ground.
The open drain of the second amplifier stage
RF and DC Ground
Not Connected
3rd stage drain supply (4.8V) and RF out
RF and DC ground (the “BATWING”)
3rd stage drain supply (4.8V) and RF out
Not Connected
RF and DC ground
1st stage drain supply (4.8V)
RF and DC Ground
4
5
V
DB
V
SS_IN
GND
V
SS OUT
6,7,8,9
10
11,12
13
V
GEN
14
15
16
17
18
19
GND
GND
V
D2
GND
N/C
V
D3B
GND
V
D3A
N/C
GND
V
D1
GND
20,21,22,23
24
25
26
27
28
5. Recommended Operating Procedure on the Evaluation Board
Power Up
A. Begin by setting all power supplies to zero volts.
B. Make sure that the input RF power is turned off.
C. Turn on V
GEN
(Pin 13) to + 4.8V
D. Check the voltage @ V
SS_IN
(pin 5) to see if it is between -4.5 V and - 4.0V if voltage is not ,check the
pin alignment.
E. Turn on V
D1
(Pin 27), V
D2
(Pin 16), V
D3
(Pins 19 and 24) and V
DB
(Pin 4) which are tied together on the
fixture, and set to + 4.8V. Little drain current should be flowing at this time (I
DD
< 5 mA).
F. Turn RF on and adjust input power to 5 dBm.
G. Turn V
REF
on using the pulsed scheme of GSM. Adjust Pulse V
REF
to desired output power (< = 35
dBm). No lower than 0 V and no higher than +3.7 V. Use an oscilloscope to measure V
REF
on the
V
REF
package pin (3) rather than using the display of the pulse generator. The reason for that is that
the pulse generator may have a 50
output impedance while the impedance of V
REF
pin is high.
This causes the voltage on V
REF
pin to be almost twice as high as the readout on the pulse
generator.
Power Down
To power down the device follow the above procedure in reverse order .
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