HMC135_09 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC BI-PHASE MODULATOR, 1.8 - 5.2 GHz

v04.0909
HMC135
GaAs MMIC BI-PHASE
MODULATOR, 1.8 - 5.2 GHz
5
5-2
Typical Applications
The HMC135 is suitable for:
• Wireless Local Loop
• LMDS & VSAT
• Point-to-Point Radios
• Test Equipment
Functional Diagram
Features
Chip Integrates Directly into MIC Designs
Carrier Suppression: 30 dB
Direct Modulation in the 1.8 - 5.2 GHz Band
Functions also as a Phase Detector
Die Size: 1.45 x 1.45 x 0.1 mm
General Description
The HMC135 Bi-Phase Modulator is designed to
phase-modulate an RF signal into reference and
180 degree states. Device input is at the RF port
and output is at the LO port. The polarity of the
bias current at the control port (IF port) defines the
phase states. Excellent amplitude and phase balance
provided by closely matched monolithic balun and
diode circuits delivers 30 dB of carrier suppression in
a tiny monolithic chip.
The device also functions as a demodulator or phase
comparator. As a demodulator, data emerges at the
control port when a modulated signal at the RF port
is compared to a reference signal at the LO port.
As a phase comparator, the phase angle between
two signals applied to the RF and LO ports is
represented by an analog voltage at the control port.
Except for carrier suppression, the data presented
here was measured under static conditions in which
a DC bias current (nominally 5 mA) is applied to the
control port.
Electrical Specifications, T_A = +25° C, 5 mA Bias Current
Parameter
Frequency Band
Insertion Loss
Return Loss, RF and LO Ports
Amplitude Balance
Phase Balance
Carrier Suppression (When driven with a 1 MHz square wave, 1.4 Vp-p)
Input Power for 1 dB Compression
Third Order Intercept, Input
Second Order Intercept, Input
Bias Current (Bias current forward biases internal Schottky diodes providing approximately 0.6 V
at the control port).
Min.
Typ.
Max.
1.8 - 5.2
9
11
2.5
3.0
0.2
0.5
2.5
5.0
25
30
0
8
5
10
15
30
2
5
10
Units
GHz
dB
dB
dB
Deg
dBc
dBm
dBm
dBm
mA
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