HMC644 Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – GaAs MMIC 5-BIT DIGITAL PHASE SHIFTER, 15 - 18.5 GHz

v00.0607
Typical Applications
The HMC644 is ideal for:
• EW Receivers
5
• Weather & Military Radar
• Satellite Communications
• Beamforming Modules
• Phase Cancellation
Functional Diagram
HMC644
GaAs MMIC 5-BIT DIGITAL
PHASE SHIFTER, 15 - 18.5 GHz
Features
Low RMS Phase Error: 4°
Low Insertion Loss: 7 dB
High Linearity: +40 dBm
360° Coverage, LSB = 11.25°
Die Size: 2.75 x 0.99 x 0.1 mm
General Description
The HMC644 is a 5-bit digital phase shifter
die which is rated from 15 to 18.5 GHz, providing
360 degrees of phase coverage, with a LSB of
11.25 degrees. The HMC644 features very low RMS
phase error of 4 degrees and extremely low insertion
loss variation of ±0.5 dB across all phase states.
This high accuracy phase shifter is controlled with
complementary logic of 0/-3V, and requires no fixed
bias voltage and is internally matched to 50 Ohms with
no external components. Simple external level shifting
circuitry can be used to convert a positive CMOS
control voltage into complementary negative control
signals.
Electrical Specifications, T_A = +25° C, 50 Ohm System, Control Voltage = 0/-3V
Parameter
Frequency Range
Insertion Loss*
Input Return Loss*
Output Return Loss*
Phase Error*
RMS Phase Error
Insertion Loss Variation*
Input Power for 1 dB Compression
Input Third Order Intercept
Control Voltage Current
*Note: Major States Shown
Min.
Typ.
Max.
15
18.5
7
9
10
8
±5
-15 / +10
4
±0.5
23
40
<1
Units
GHz
dB
dB
dB
deg
deg
dB
dBm
dBm
μA
5 - 32
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