Hittite HMC290 Datasheet
MICROWAVE CORPORATION
2 dB LSB GaAs IC 2 - BIT DIGITAL ATTENUATOR 0.7 - 4.0 GHz
HMC290
2
ATTENUATORS
SMT
FEBRUARY 2001
Features
2 dB LSB STEPS to 6 dB
SINGLE POSITIVE CONTROL PER BIT
+/- 0.2 dB TYPICAL BIT ERROR
MINIATURE SOT 26 PACKAGE: 9 mm²
V00.0600
General Description
The HMC290 is a broadband 2 - bit positive
control GaAs IC digital attenuator in a 6 lead
SOT26 surface mount plastic package. Covering 0.7 to 4 GHz the insertion loss is typically
less than 0.7 dB. The attenuator bit values are
2 (LSB) and 4 dB for a total attenuation of 6 dB.
Accuracy is excellent at ± 0.2 dB typical with
an IIP3 of up to +52 dBm. Two 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 HMC290 is ideal for
cellular, PCS, ISM, MMDS, and WLL handset
& basestation applications. Occupying less
than 9 mm², this is the smallest 2 - bit digital
attenuator available.
Guaranteed Performance
With Vdd =+3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated), -40 to +85 deg C
Parameter Frequency Min. Typ. Max. Units
0.7 - 1.4 GHz
Insertion Loss
Attenuation Range 0.7 - 4.0 GHz 6 dB
Return Loss (RF1 & RF2, AllAtten.States)
Attenuation Accuracy:(Referenced to Insertion Loss)
2, 4 dB States
6 dB State
InputPower for 0.1 dB C ompression 5V3V0.7 - 4.0 GHz
InputThird Order Intercept Point
(Tw o-Tone Input Power = 0dBm Each)
Switching Characteristics
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
1.4-2.3GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
0.7 - 2.7 GHz
2.7 - 4.0 GHz
0.7 - 4.0 GHz
0.7 - 4.0 GHz
5V3V0.7 - 4.0 GHz 52
0.7 - 4.0 GHz
16
15
± 0.2 + 2% of Atten. Setting
±0.3+2%ofAtten.Setting
2 - 62
0.5
0.5
0.6
0.8
20
18
27
24
50
400
420
0.7
0.8
0.9
1.2
Max
Max
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
MICROWAVE CORPORATION
2 dB LSB GaAs IC 2 - BIT DIGITAL ATTENUATOR 0.7 - 4.0 GHz
HMC290
V00.0600
Insertion Loss
0
-0.25
-0.5
-0.75
-1
INSERTION LOSS (dB)
-1.25
-1.5
0.5 1 1.5 2 2.5 3 3.5 4
-40 C
+85 C
FREQUENCY (GHz)
Normalized Attenuation
0
-1
-2
-3
-4
-5
-6
-7
NORMALIZED INSERTION LOSS (dB)
-8
0.5 1 1.5 2 2.5 3 3.5 4
2dB
4dB
6dB
FREQUENCY (GHz)
+25 C
FEBRUARY 2001
Return Loss RF1, RF2
0
-5
-10
-15
-20
RETURN LOSS (dB)
-25
-30
0.5 1 1.5 2 2.5 3 3.5 4
6dB
2dB
4dB
FREQUENCY (GHz)
2
ATTENUATORS
SMT
Absolute Bit Error vs
Attenuation State
1
0.75
0.5
BIT ERROR (dB)
0.25
0
246
3.5 GHz
0.9 GHz
ATTENUATION STATE (dB)
1.9 GHz
2.4 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 - 63
Loading...