HMC290_09 Datasheet, PDF (1/4 Pages) Hittite Microwave Corporation – 2 dB LSB GaAs MMIC 2-BIT DIGITAL

v01.0605
5
Typical Applications
The HMC290 / HMC290E is ideal for:
• Cellular
• PCS, ISM, MMDS
• WLL Handset & BaseStation
Functional Diagram
HMC290 / 290E
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
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
General Description
The HMC290 & HMC290E are broadband 2 - bit
positive control GaAs IC digital attenuators in 6 lead
SOT26 surface mount plastic packages. 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 5K Ohm resistor is
required. Occupying less than 9 mm2, this is the small-
est 2 - bit digital attenuator available.
5 - 36
Electrical Specifications,
T_A = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Parameter
Frequency
Min.
Typical
Max.
Insertion Loss
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
0.5
0.7
0.5
0.8
0.6
0.9
0.8
1.2
Attenuation Range
0.7 - 4.0 GHz
6
Return Loss (RF1 & RF2, All Atten. States)
0.7 - 2.7 GHz
16
20
2.7 - 4.0 GHz
15
18
Attenuation Accuracy: (Referenced to Insertion Loss)
2, 4 dB States
6 dB States
0.7 - 4.0 GHz
0.7 - 4.0 GHz
± 0.2 + 2% of Atten. Setting Max
± 0.3 + 2% of Atten. Setting Max
Input Power for 0.1 dB Compression
5V
0.7 - 4.0 GHz
27
3V
24
Input Third Order Intercept Point
5V
0.7 - 4.0 GHz
52
(Two-tone Input Power = 0 dBm Each Tone)
3V
50
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
0.7 - 4.0 GHz
400
420
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns