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부품번호 | AWT1902 기능 |
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기능 | TX POWER MMIC | ||
제조업체 | ANADIGICS | ||
로고 | |||
전체 6 페이지수
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.
• 50Ω Input 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.
awt1902, 22/04/98, 1
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.
awt1902, 22/04/98, 4
4페이지 | |||
구 성 | 총 6 페이지수 | ||
다운로드 | [ AWT1902.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
AWT1902 | TX POWER MMIC | ANADIGICS |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |