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20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
General Description
Features
Functional Diagram
RoHs Compliant Product
1 dB LSB Steps to 31 dB
Single Positive Control Per BIT
?.2 dB Typical Bit Error
Miniature MSOP 10 Package: 14.8mm
2
Included in the HMC-DK004 Designers Kit
Electrical Specifi cations,
T
A
= +25?C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Typical Applications
The HMC273MS10G(E) is a general purpose
broadband 5-Bit positive control GaAs IC digital
attenuator in a 10 lead MSOP plastic package.
Covering 0.7 to 3.8 GHz, the insertion loss is typically
less than 2.5 dB. The attenuator bit values are
1 (LSB), 2, 4, 8, and 16 dB for a total attenuation
of 31 dB. Accuracy is excellent at ?.2 dB typical
with an IIP3 of up to +48 dBm. Five bit control vol-
tage inputs, toggled between 0 and +3 to +5 volts, are
used to select each attenuation state. A single Vdd
bias of +3 to +5 volts applied through an external
5K Ohm resistor is required.
The HMC273MS10G(E) is ideal for:
" Cellular; UMTS/3G Infrastructure
" ISM, MMDS, WLAN, WiMAX
" Microwave Radio & VSAT
" Test Equipment and Sensors
Parameter
Frequency
Min.
Typical
Max.
Units
Insertion Loss
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 3.7 GHz
3.7 - 3.8 GHz
1.8
2.3
2.8
3.5
3.9
2.4
2.9
3.4
4.2
4.4
dB
dB
dB
dB
dB
Attenuation Range
0.7 - 3.8 GHz
31
dB
Return Loss (RF1 & RF2, All Atten. States)
0.7 - 1.4 GHz
1.4 - 2.7 GHz
2.7 - 3.8 GHz
11
12
10
17
20
14
dB
dB
dB
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
All Attenuation States
All Attenuation States
All Attenuation States
0.7 - 1.4 GHz
1.4 - 2.2 GHz
2.2 - 2.7 GHz
2.7 - 3.8 GHz
?(0.30 + 3% of Atten. Setting) Max
?(0.30 + 4% of Atten. Setting) Max
?(0.40 + 5% of Atten. Setting) Max
?(0.50 + 5% of Atten. Setting) Max
dB
dB
dB
dB
Input Power for 0.1 dB Compression
Vdd = 5V
Vdd = 3V
0.7 - 3.8 GHz
27
22
dBm
dBm
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
Vdd = 5V
Vdd = 3V
0.7 - 3.8 GHz
48
46
dBm
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
0.7 - 3.8 GHz
560
600
ns
ns
1 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
HMC273MS10G / 273MS10GE
v04.0907
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