Product Description
Stanford Microdevices聮 NGA-689 is a high performance Gallium
Arsenide Heterojunction Bipolar Transistor MMIC Amplifier.
Designed with InGaP process technology for improved reliability,
a Darlington configuration is utilized for broadband performance
up to 5 Ghz. The heterojunction increases breakdown voltage
and minimizes leakage current between junctions. Cancellation
of emitter junction non-linearities results in higher suppression
of intermodulation products.
Preliminary
Preliminary
NGA-689
DC-5000 MHz, Cascadable GaAs
HBT MMIC Amplifier
Small Signal Gain vs. Frequency
16
14
dB
12
10
8
6
0
2
4
Frequency GHz
Product Features
聲
11.7dB Gain, 18.9 dBm P1dB at 1950Mhz
聲
Cascadable 50 ohm: 1.4:1 VSWR
聲
Patented GaAs HBT Technology
聲
Operates from Single Supply
聲
Low Thermal Resistance Package
聲
Unconditionally Stable
Applications
聲
Cellular, PCS, CDPD
聲
Wireless Data, SONET
U nits
Min.
Ty p.
19.9
18.9
17.9
36.9
33.6
32.1
11.9
11.7
11.6
5000
1.4:1
1.4:1
19.7
19.5
19.4
6.0
5.8
91
Max.
6
8
Sy mbol
Parameters: Test C onditions:
Z
0
= 50 Ohms, I
D
= 80 mA, T = 25潞C
Output Power at 1dB C ompressi on
f = 850 MHz
f = 1950 MHz
f = 2400 MHz
f = 850 MHz
f = 1950 MHz
f = 2400 MHz
f = 850 MHz
f = 1950 MHz
f = 2400 MHz
P
1dB
dB m
dB m
dB m
dB m
dB m
dB m
dB
dB
dB
MHz
IP
3
Thi rd Order Intercept Poi nt
Power out per tone = 0 dBm
S
21
Bandwi dth
S
11
S
22
S
12
NF
V
D
R
th
, j-l
Small Si gnal Gai n
D etermi ned by S11 and S22 values
Input VSWR
Output VSWR
Reverse Isolati on
Noi se Fi gure
D evi ce Voltage
Thermal Resi stance (juncti on - lead)
f = D C - 5000 MHz
f = D C - 5000 MHz
f = 850 MHz
f = 1950 MHz
f = 2400 MHz
f = 2000 MHz
-
-
dB
dB
dB
dB
V
潞C /W
The information provided herein is believed to be reliable at press time. Stanford Microdevices assumes no responsibility for inaccuracies or omissions.
Stanford Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user聮s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Stanford Microdevices does not authorize or warrant any Stanford
Microdevices product for use in life-support devices and/or systems.
Copyright 2000 Stanford Microdevices, Inc. All worldwide rights reserved.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
http://www.stanfordmicro.com
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