HMC306MS10 / 306MS10E
v06.0206
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.8 GHz
5
Typical Applications
Features
The HMC306MS10 / HMC306MS10E is ideal for:
• Cellular; UMTS/3G Infrastructure
• ISM, MMDS, WLAN, WiMAX
RoHS-Compliant Product
0.5 dB LSB Steps to 15.5 dB
Single Positive Control Per Bit
0.2 dB Typical Bit Error
• Microwave Radio & VSAT
• Test Equipment and Sensors
Miniature 15 mm2 Package: MSOP10
Included in the HMC-DK004 Designer’s Kit
Functional Diagram
General Description
The HMC306MS10 & HMC306MS10E are general
purpose broadband 5-bit positive control GaAs IC
digital attenuators in 10 lead MSOP surface mount
plastic packages. Covering 0.7 to 3.8 GHz, the
insertion loss is typically less than 1.5 to 2.3 dB.
These attenuators’ bit values are 0.5 (LSB), 1, 2, 4 and
8 dB for a total attenuation of 15.5 dB. Attenuation
accuracy is excellent at 0.2 dB typical with an IIP3
of up to +52 dBm. Five bit control voltage inputs, toggled
between 0 and +3 to +5V, are used to select each
attenuation state. A single Vdd bias of +3 to +5V ap-
plied through an external 5K Ohm resistor is required.
Electrical Specifications,
TA = +25° C, Vdd= +3V to +5V & VCTL= 0/Vdd (Unless Otherwise Stated)
Parameter
Frequency (GHz)
Min.
Typical
Max.
Units
0.7 - 1.4
1.4 - 2.3
2.3 - 2.7
2.7 - 3.8
1.3
1.5
1.8
2.3
1.6
2.0
2.5
2.7
dB
dB
dB
dB
Insertion Loss
Attenuation Range
15.5
dB
0.7 - 1.4
1.4 - 2.3
2.3 - 2.7
2.7 - 3.8
15
14
13
10
21
18
16
13
dB
dB
dB
dB
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
0.5 - 7.5 dB States
8.0 - 15.5 dB States
All Attenuation States
0.7 - 1.4
1.4 - 2.3
1.4 - 2.3
2.3 - 3.8
(0.30 + 5ꢀ of Atten. Setting) Max.
(0.25 + 3ꢀ of Atten. Setting) Max.
(0.15 + 3ꢀ of Atten. Setting) Max.
(0.30 + 3ꢀ of Atten. Setting) Max.
dB
dB
dB
dB
Vdd = 5V
Vdd = 3V
25
23
dBm
dBm
Input Power for 0.1 dB Compression
0.7 - 3.8
0.7 - 3.8
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
Vdd = 5V
Vdd = 3V
52
48
dBm
dBm
Switching Characteristics
tRISE, tFALL (10/90ꢀ RF)
tON, tOFF (50ꢀ CTL to 10/90ꢀ RF)
0.7 - 3.8
560
600
ns
ns
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