MICROWAVE CORPORATION
v06.0503
HMC307QS16G
1dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, DC - 4 GHz
Features
1 dB LSB Steps to 31 dB
Single Control Line Per Bit
+/- 0.5 dB Typical Bit Error
Miniature QSOP-16 Package: 29.4 mm
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Typical Applications
The HMC307QS16G is ideal for:
9
ATTENUATORS - SMT
鈥?Cellular
鈥?PCS, ISM, MMDS
鈥?Wireless Local Loop
Functional Diagram
General Description
The HMC307QS16G is a broadband 5-bit GaAs IC
digital attenuator in a 16 lead QSOP grounded base
surface mount plastic package. Covering DC to 4
GHz, the insertion loss is less then 2 dB typical. The
attenuator bit values are 1 (LSB), 2, 4, 8, and 16 dB
for a total attenuation of 31 dB. Attenuation accu-
racy is excellent at 鹵 0.5 dB typical with an IIP3 of up
to +44 dBm. Five bit control voltage inputs, toggled
between 0 and -5V, are used to select each attenua-
tion state at less than 50 uA each. A single Vee bias
of -5V allows operation down to DC. This product is
an excellent alternative to the HMC235QS16G.
Electrical Speci鏗乧ations,
T
A
= +25擄 C, Vee = -5V & VCTL= 0/Vee
Parameter
Insertion Loss
Frequency
DC - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
DC - 4.0 GHz
DC - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
11
11
10
8
Min.
Typical
1.8
1.9
2.0
2.1
31
15
17
18
15
Max.
2.2
2.4
2.5
2.7
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
1 - 20 dB States
21 - 31 dB States
1 - 15 dB States
16 - 31 dB States
Input Power for 0.1 dB Compression
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 2.7 GHz
DC - 2.7 GHz
2.7 - 4.0 GHz
2.7 - 4.0 GHz
0.5 - 4.0 GHz
0.5 - 4.0 GHz
DC - 4.0 GHz
鹵
0.2 + 3% of Atten. Setting Max
鹵
0.3 + 5% of Atten. Setting Max
鹵
0.3 + 5% of Atten. Setting Max
鹵
0.6 + 10% of Atten. Setting Max
24
44
dB
dB
dB
dB
dBm
dBm
140
160
ns
ns
9 - 50
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
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