Preliminary
Preliminary
SNA-686
Product Description
DC-6 GHz, Cascadable
Sirenza MicrodevicesSNA-686 is a GaAs HBT MMICAmplifier
housed in a low-cost, surface-mountable plastic packageꢀ
The heterojunction increases breakdown voltage and
minimizes leakage current between junctionsꢀ Cancellation
of emitter junction non-linearities results in higher suppression
of intermodulation productsꢀ
GaAs HBT MMIC Amplifier
Not Recommended for New Designs
See Application Note AN-019 for Alternates
The use of an external resistor allows for bias flexibility and
stabilityꢀ These unconditionally stable amplifiers are designed
for use as general purpose 50 ohm gain blocksꢀ
Also available in chip form (SNA-600), its small size (0ꢀ38mm
x 0ꢀ38mm) and gold metallization make it an ideal choice for
use in hybrid circuitsꢀ
Product Features
Patented GaAs HBT Technology
Cascadable 50 Ohm Gain Block
34 dBm Output IP3 @ 850 MHz
Operates From Single Supply
Low Cost Surface Mount Plastic Package
Gain & Return Loss vs. Frequency
(ID=65mA, TLEAD=+25°C)
16
12
8
0
-6
-12
-18
-24
4
Gain
Applications
Cellular, PCS, CDPD, Wireless Data, SONET
Input Return Loss
Output Return Loss
0
0
1
2
3
4
5
6
7
Frequency (GHz)
Symbol
Parameter
Frequency
Units
Minꢀ
Typꢀ
Maxꢀ
850 MHz
1950 MHz
2400 MHz
dBm
dBm
dBm
17ꢀ6
17ꢀ7
17ꢀ4
Output Power at 1dB Compression
Third Order Intercept Point
Small Signal Gain
15ꢀ7
P1dB
850 MHz
1950 MHz
2400 MHz
dBm
dBm
dBm
34ꢀ0
32ꢀ1
30ꢀ0
IP3
29ꢀ1
850 MHz
1950 MHz
2400 MHz
dB
dB
dB
10ꢀ0
10ꢀ1
11ꢀ1
11ꢀ2
11ꢀ3
12ꢀ2
12ꢀ3
S21
Bandwidth (Determined by S11, S22 Values)
MHz
6000
1ꢀ3:1
1ꢀ4:1
Input VSWR
DC-6000 MHz
DC-6000 MHz
-
-
VSWRIN
Output VSWR
VSWROUT
850 MHz
1950 MHz
2400 MHz
dB
dB
dB
16ꢀ3
16ꢀ5
16ꢀ6
Reverse Isolation
S12
NF
VD
Noise Figure
1950 MHz
dB
7ꢀ3
5ꢀ3
65
8ꢀ8
5ꢀ6
72
Device Operating Voltage
Device Operating Current
Thermal Resistance (junction - lead)
V
I
5ꢀ0
58
ID
o C/W
261
RTH, j-l
VS = 8 V
RBIAS = 43 Ohms
ID = 65 mA Typꢀ
TL = 25ºC
OIP3 Tone Spacing = 1 MHz, Pout per tone = 0 dBm
ZS = ZL = 50 Ohms
Test Conditions:
The information provided herein is believed to be reliable at press timeꢀ Sirenza Microdevices assumes no responsibility for inaccuracies or omissionsꢀ Sirenza Microdevices
assumes no responsibility for the use of this information, and all such information shall be entirely at the users own riskꢀ Prices and specifications are subject to change without
noticeꢀ No patent rights or licenses to any of the circuits described herein are implied or granted to any third partyꢀ Sirenza Microdevices does not authorize or warrant any
Sirenza Microdevices product for use in life-support devices and/or systemsꢀ Copyright 2003 Sirenza Microdevices, Incꢀꢀ All worldwide rights reservedꢀ
522 Almanor Aveꢀ, Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
http://wwwꢀsirenzaꢀcom
EDS-101398 Rev C
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