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Details, datasheet, quote on part number:HMC273MS10G
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Datasheet text preview:
v02.1100
MICROWAVE CORPORATION
HMC273MS10G
1 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.7 GHz
Features
1 dB LSB Steps to 31 dB Single Positive Control Per BIT +/- 0.5 dB Typical Bit Error Miniature MSOP 10 Package: 14.8mm2
Typical Applications
The HMC273MS10G is ideal for:
9
ATTENUATORS - SMT
· Cellular · PCS, ISM, MMDS · WLL applications
Functional Diagram
General Description
The HMC273MS10G is a broadband 5 - bit positive control GaAs IC digital attenuator in a 10 lead MSOP plastic package. Covering 0.7 to 3.7 GHz, the insertion loss is typically less than 2 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 ± 0.5 dB typical with an IIP3 of up to +48 dBm. Five bit control voltage 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.
Electrical Specifications,
TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Parameter Inser tion Loss Frequency 0.7 - 1.4 GHz 1.4 - 2.3 GHz 2.3 - 2.7 GHz 2.7 - 3.7 GHz 0.7 - 3.7 GHz 0.7 - 1.4 GHz 1.4 - 2.7 GHz 2.7 - 3.7 GHz 11 14 10 Min. Typical 1.8 2.1 2.4 2.8 31 17 20 14 Max. 2.4 2.7 3.0 3.5 Units dB dB dB dB dB dB dB dB
Attenuation Range Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss) All Attenuation States All Attenuation States All Attenuation States 1 - 15 dB States 16 - 31 dB States Input Power for 0.1 dB Compression Vdd = 5V Vdd = 3V Vdd = 5V Vdd = 3V 0.7 - 1.4 GHz 1.4 - 2.3 GHz 2.3 - 2.7 GHz 2.7 - 3.7 GHz 2.7 - 3.7 GHz 0.7 - 3.7 GHz ± 0.35 + 3% of Atten. Setting Max ± 0.25 + 3% of Atten. Setting Max ± 0.30 + 5% of Atten. Setting Max ± 0.30 + 5% of Atten. Setting Max ± 0.50 + 8% of Atten. Setting Max 24 22 48 46 dB dB dB dB dB dBm dBm dBm dBm
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)
0.7 - 3.7 GHz
0.7 - 3.7 GHz 560 600 ns ns
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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
MICROWAVE CORPORATION
v02.1100
HMC273MS10G
1 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.7 GHz
Return Loss RF1, RF2
Insertion Loss
0 -0.5 INSERTION LOSS (dB)
(Only Major States are Shown)
0 -5
+25 C -40 C
RETURN LOSS (dB)
-1 -1.5 -2 -2.5 -3 -3.5 -4 0.5
+85 C
31 dB
16 dB
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ATTENUATORS - SMT
9 - 21
-10 -15 -20
2 dB
-25
1 dB 8 dB 4 dB
1
1.5
2
2.5
3
3.5
4
-30 0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
FREQUENCY (GHz)
Normalized Attenuation
(Only Major States are Shown)
0 NORMALIZED ATTENUATION (dB) -5 -10 -15 -20 -25 -30 -35 0.5
Absolute Bit Error vs. Attenuation State
2
3.5 GHz
1.5 BIT ERROR (dB)
2.4 GHz 1.9 GHz
1
0.9 GHz
0.5
0 1 1.5 2 2.5 3 3.5 4 0 5 10 15 20 25 30 FREQUENCY (GHz) ATTENUATION STATE (dB)
Absolute Bit Error vs. Frequency
(Only Major States are Shown)
4
Relative Phase vs. Frequency
(Only Major States are Shown)
150
3 BIT ERROR (dB)
31 dB 8 dB
RELATIVE PHASE (deg.)
100
31 dB 16 dB
1, 2, 4 dB
50
2
16 dB
0
1
-50
1, 2, 4, 8 dB
0 0.5
-100 1 1.5 2 2.5 3 3.5 4 0 1 2 FREQUENCY (GHz) 3 4 FREQUENCY (GHz)
Note: All Data Typical Over Voltage (+3V to +5V) & Temperature (-40 to +85 deg. C.). 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
MICROWAVE CORPORATION
v02.1100
HMC273MS10G
1 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.7 - 3.7 GHz
Application Circuit
PIN NUMBER
Truth Table
Control Voltage Input
100 pF
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ATTENUATORS - SMT
V5
1
1 dB
10
C1
RF1
V1 16 dB High
V2 8 dB High High High High Low High Low
V3 4 dB High High High Low High High Low
V4 2 dB High High Low High High High Low
V5 1 dB High Low High High High High Low
Attenuation Setting RF1 - RF2 Reference I.L. 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB Max. Atten.
V4
2
2 dB
9
High
V3
3
4 dB
8
High High High
RF2 C2 5k Ohm
V2
4
8 dB
7
100 pF
V1
5
16 dB
6
R1
Low Low
Vdd Exposed Paddle Ground
Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected.
DC blocking capacitors C1 & C2 are required on RF1 & RF2. Choose C1 = C2 = 100 ~ 300 pF to allow lowest customer specific frequency to pass with minimal loss. R1 = 5K Ohm is required to supply voltage to the circuit through either PIN 6 or PIN 10.
Control Voltages
State Low High Bias Condition 0 to +0.2 V @ 20 uA Max Vdd ± 0.2V @ 100 uA Max
Note: Vdd = +3V to 5V ± 0.2V
9 - 22
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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