Hittite HMC230MS8 Datasheet
HMC230MS8
MICROWAVE CORPORATION
4 dB LSB GaAs IC 3 - BIT DIGITAL ATTENUATOR 0.75 - 2.0 GHz
2
ATTENUATORS
SMT
FEBRUARY 2001
Features
4 dB LSB STEPS to 28 dB
SINGLE POSITIVE CONTROL PER BIT
+/- 0.5 dB TYPICAL BIT ERROR
PIN - FOR - PIN REPLACEMENT TO
AA100-59 DIGITAL ATTENUATOR
V01.0700
General Description
The HMC230MS8 is a broadband 3 - bit positive control GaAs IC digital attenuator in an 8
lead MSOP surface mount plastic package.
Covering 0.75 to 2 GHz the insertion loss is
typically less than 2 dB. The attenuator bit
values are 4 (LSB), 8, and 16 dB for a total
attenuation of 28 dB. Accuracy is excellent at
± 0.5 dB typical with an IIP3 of up to +48 dBm.
Three bit control voltage inputs, toggled between 0 and +3 to +5 volts, are used to select
each attenuation state at less than 50 uA each.
A single Vdd bias of +3 to +5 volts applied
through an external 5KΩ resistor is required.
The HMC230MS8 is ideal for cellular, PCS,
ISM, MMDS, and WLL handset & basestation
applications.
Guaranteed Performance
With Vdd =+3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated), -40 to +85 deg C
Parameter Frequency Min. Typ. Max. Units
Insertion Loss
Attenuation Range 0.75 - 2.0 GHz 28 dB
Return Loss (RF1 & RF2, AllAtten.States)
Attenuation Accuracy: (Referenced to Insertion Loss)
4, 8, 12, 16, 20 dB States
24, 28 dB States
All Attenuation States
InputPower for 0.1 dB Compression 5V3V0.75 - 2.0 GHz 20
Input Third Order Intercept Point
(Two-Tone Input Power = 0dBm Each)
Switching Character istics
tRISE, tFALL (10/90%RF)
tON/tOFF (50% CTL to 10/90% RF)
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
0.75 - 1.7 GHz
1.7- 2.0 GHz
0.75 - 1.7 GHz
1.7- 2.0 GHz
0.75 - 1.4 GHz
0.75 - 1.4 GHz
1.40 - 2.0 GHz
5V3V0.75 - 2.0 GHz 46
0.75 - 2.0 GHz
10
13
±0.3+3%ofAtten.SettingMax
±0.4+6%ofAtten.SettingMax
±0.3+3%ofAttem.SettingMax
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1.6
1.8
13
16
19
45
560
600
1.8
2.1
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
MICROWAVE CORPORATION
4 dB LSB GaAs IC 3 - BIT DIGITAL ATTENUATOR 0.75 - 2.0 GHz
HMC230MS8
V01.0700
Insertion Loss
0
-0.5
-1
-1.5
-2
INSERTION LOSS (dB)
-2.5
-3
0.75 1 1.25 1.5 1.75 2
+85 C
-40 C
FREQUENCY (GHz)
Normalized Attenuation
(Only Major States are Shown)
0
-5
-10
-15
+25 C
4dB
8dB
16 dB
FEBRUARY 2001
Return Loss RF1, RF2
(
Only Major States are Shown)
0
-5
16, 28 dB
-10
-15
RETURN LOSS(dB)
-20
-25
0.75 1 1.25 1.5 1.75 2
4dB
8dB
FREQUENCY (GHz)
Bit Error vs Attenuation State
3
2
1
2
ATTENUATORS
SMT
0.9 GHz
-20
-25
-30
NORMALIZEDINSERTIONLOSS(dB)
-35
0.75 1 1.25 1.5 1.75 2
FREQUENCY (GHz)
28 dB
0
BIT ERROR (dB)
-1
-2
4 8 12 16 20 24 28
ATTENUATIONSTATE(dB)
1.9 GHz
Note: All Data Typical Over Voltage (+3V to +5V) & Temperature (-40 to +85 deg.C).
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
2 - 39
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