HMC468LP3_08 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – 1 dB LSB GaAs MMIC 3-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 6 GHz

HMC468LP3 / 468LP3E
v03.1107
1 dB LSB GaAs MMIC 3-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 6 GHz
5
Typical Applications
The HMC468LP3 / HMC468LP3E is ideal for:
• Cellular; UMTS/3G Infrastructure
• Fixed Wireless & WLL
• Microwave Radio & VSAT
• Test Equipment
Features
1 dB LSB Steps to 7 dB
High IP3: +50 dBm
± 0.25 dB Typical Bit Error
Single Control Line Per Bit
Single +5V Supply
16 Lead 3x3mm SMT Package: 9mm²
Included in the HMC-DK004 Designer’s Kit
Functional Diagram
General Description
The HMC468LP3 & HMC468LP3E are broadband
3-bit GaAs IC digital attenuators in low cost leadless
surface mount packages. Covering DC to 6.0 GHz,
the insertion loss is less than 1 dB typical up to 4
GHz. The attenuator bit values are 1 (LSB), 2 and 4
dB for a total attenuation of 7 dB. Attenuation accu-
racy is excellent at ±0.4 dB typical step error with an
IIP3 of +50 dBm. Three control voltage inputs, toggled
between 0 and +5V, are used to select each attenua-
tion state. A single Vdd bias of +5V is required.
5 - 138
Electrical Specifications, T_A = +25° C, With Vdd = +5V & Vctl = 0/+5V
Parameter
Frequency (GHz)
Min.
Typ.
Max.
Insertion Loss
DC - 2.5 GHz
2.5 - 4.5 GHz
4.5 - 6.0 GHz
0.7
1.0
0.9
1.3
1.3
1.8
Attenuation Range
DC - 6 GHz
7
Return Loss (RF1 & RF2, All Atten. States)
DC - 4 GHz
20
4.0 - 6.0 GHz
15
Attenuation Accuracy:
(Referenced to Insertion Loss)
All States
1 - 4 dB States
5 - 7 dB States
DC - 2.5 GHz
2.5 - 6.0 GHz
2.5 - 6.0 GHz
± 0.2 + 2% of Atten. Setting Max.
± 0.3 + 3% of Atten. Setting Max.
± 0.4 + 4% of Atten. Setting Max.
Input Power for 0.1 dB Compression
0.25 - 6.0 GHz
20
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
0.25 - 6.0 GHz
50
Switching Characteristics
DC - 6 GHz
tRISE, tFALL (10/90% RF)
110
tON, tOFF (50% CTL to 10/90% RF)
135
* Bypass capacitor connecting ACG1, ACG2 & ACG3 to RF ground required per pin description herein.
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
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