HMC644LC5 Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – GaAs MMIC 5-BIT DIGITAL PHASE SHIFTER, 15 - 18.5 GHz

v00.0607
Typical Applications
The HMC644LC5 is ideal for:
• EW Receivers
7
• Weather & Military Radar
• Satellite Communications
• Beamforming Modules
• Phase Cancellation
Functional Diagram
HMC644LC5
GaAs MMIC 5-BIT DIGITAL
PHASE SHIFTER, 15 - 18.5 GHz
Features
Low RMS Phase Error: 3.5°
Low Insertion Loss: 7.5 dB
High Linearity: +40 dBm
360° Coverage, LSB = 11.25°
32 Lead Ceramic SMT Package: 25mm²
General Description
The HMC644LC5 is a 5-bit digital phase shifter
which is rated from 15 to 18.5 GHz, providing 360
degrees of phase coverage, with a LSB of 11.25
degrees. The HMC644LC5 features very low RMS
phase error of 3.5 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. The HMC644LC5 is housed in
a compact 5x5 mm ceramic leadless SMT package
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
7.5
10
10
12
±5
+20 / -10
3.5
±0.5
23
40
<1
Units
GHz
dB
dB
dB
deg
deg
dB
dBm
dBm
mA
7 - 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