SGA-4563 Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – DC-2500 MHZ SILICON GERMANIUM CASCADEABLE GAIN BLOCK

Product Description
Stanford Microdevices’ SGA-4563 is a high performance
cascadeable 50-ohm amplifier designed for operation at
voltages as low as 3.4V. This RFIC uses the latest Silicon
Germanium Heterostructure Bipolar Transistor (SiGe HBT)
process featuring 1 micron emitters with F_T up to 50 GHz.
This circuit uses a Darlington pair topology with resistive
feedback for broadband performance as well as stability over
its entire temperature range. Internally matched to 50 Ohm
impedance, the SGA-4563 requires only DC blocking and
bypass capacitors for external components.
Small Signal Gain vs. Frequency
30
20
10
0
0.1
25C
-40C
85C
1
1.9
2.8
3.7
4.6
Frequency GHz
PPrerelilmimininaaryry
SGA-4563
DC-2500 MHz, Silicon Germanium
Cascadeable Gain Block
Product Features
• DC-2500 MHz Operation
• Single Voltage Supply
• Low Current Draw: 45mA at 3.5V typ.
• High Output Intercept: 26 dBm typ. at 1950MHz
Applications
• Oscillator Amplifiers
• Broadband Gain Blocks
• IF/RF Buffer Amplifiers
Symbol
Parameters: Test Conditions:
Z₀ = 50 Ohms, I_D = 45 mA, T = 25ºC
P_1dB
Output Power at 1dB Compression
Third Order Intercept Point
IP₃
Power out per tone = -10 dBm
S₂₁
Small Signal Gain
Bandwidth Input and Output VSWR: Minimum 2:1
S₁₁
Input VSWR
S₂₂
Output VSWR
S₁₂
Reverse Isolation
NF
V_D
R_th, j-l
Noise Figure
Device Voltage
Thermal Resistance (junction - lead)
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
f = 1950 MHz
f = 1950 MHz
f = 850 MHz
f = 1950 MHz
f = 2400 MHz
f = 1950 MHz
Units
dBm
dBm
dBm
dBm
dBm
dBm
dB
dB
dB
MHz
-
-
dB
dB
dB
dB
V
ºC/W
Min.
Typ.
15.0
12.8
11.6
27.1
26.2
25.3
25.5
20.0
18.5
2500
1.2:1
1.9:1
28.0
24.5
23.0
2.4
3.5
255
Max.
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’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 2001 Stanford Microdevices, Inc. All worldwide rights reserved.
726 Palomar Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
http://www.stanfordmicro.com
1
EDS-101803 Rev. A