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AWT1902 데이터시트 PDF




ANADIGICS에서 제조한 전자 부품 AWT1902은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 AWT1902 기능
기능 TX POWER MMIC
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AWT1902 데이터시트, 핀배열, 회로

AWT1902
TX POWER MMIC
Advanced Product Information
Rev 3
DCS1800/PCS1900 GaAs 4.8 V Single Supply Power Amplifier IC
DESCRIPTION
The AWT1902 is a 3 stage monolithic Power
Amplifier IC suited for DCS 1800 (1710-1785)
and PCS1900 (1850-1910) cellular telephone
applications
FEATURES
High Output Power
High Efficiency
Built in Pulse Control
16 Pin SSOP Plastic Package.
50Input Impedance
Low Cost
Single Supply
1. Maximum Ratings
Static sensitive electronic devices. Do not operate or store near strong electrostatic, fields.
Take proper ESD precautions.
PIN
Pin 1 - VD1
Pin 2 - VREF
Pin 3 - RFIN
Pin 5 - VDB
Pin 6 - VSS_IN
Pin 8 - VDC
Pin 9 - VD2
Pin 12,13,14 -
VD3, RFOUT
RATING
+7.5V max., 0 V min.
+ 5V max., 0 V min.
+ 12 dBm max.
+ 7.5V max., 0 V min.
- 7.5 V
+ 7.5V max., 0 V min.
+ 7.5V max., 0 V min.
+ 7.5V max., 0 V min.
NOTES
If VREF is kept high and not pulsed, the amplifier may
draw very high currents and permanent damage may
occur.
AC coupled only, do not apply DC voltage.
VSS_IN must be between -3V and -5V to allow proper
operation.
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 5000z(908)668 5132z Email: [email protected]
awt1902, 22/04/98, 1




AWT1902 pdf, 반도체, 판매, 대치품
5. Power Amplifier Evaluation Test Fixture Operation Procedure.
Power Up: Dual supply operation, ( for Single Supply operation please contact ANADIGICS).
A. Begin by setting all power supplies to zero volts.
B. Set the RF input power level to +8.5 dBm
C. Set VDC and VBAT to + 4.8 volts.
D. Apply a periodic square wave (PRF=217Hz, pulse width = 1m Sec, amplitude = -4.4V) to
VSS-ON. (pin 6).
E. Apply a synchronized periodic square wave (PRF=217Hz, pulse width = 600 µSec, pulse
delay = 200µSec, amplitude = 3V) to VDD_ON. This signal turns on the pass transistor, which
then applies positive voltage (VBAT) to the drains of the amplifier.
F. Pulse VREF (power control) with a synchronized periodic square wave (PRF=217Hz, pulse
width = 577 µSec, pulse delay = 210µsec), and adjust its’ amplitude for a desired output
power (0V < VREF < 3.6V). Make sure that the pulse generator is properly terminated,
otherwise, you may apply as much as twice the generator voltage to the VREF pin.
Note: The square wave signals in steps E and F are synchronized to the square wave signal in step D.
Furthermore, the pulse widths and delays in steps D through F, (timing sequence), should be tailored
for each system application. The important point to remember, is to ensure that negative voltage is
always present during the time the power amplifier is operating (positive voltage applied to drains).
Please see timing diagram shown below.
Power Down
To power down the device follow the above procedure in reverse order.
(D) Vss-ON
0
- 4.4 V
1mS
(E) VDD-ON
3V
0
200µS
600µS
4.6mS
(F) VREF
577µS
210µS
0
AWT1902 Evaluation Test Fixture Timing Diagram
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 5000z(908)668 5132z Email: [email protected]
awt1902, 22/04/98, 4

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AWT1902

TX POWER MMIC

ANADIGICS
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