For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
FREQUENCY DIVIDERS & DETECTORS - SMT
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FREQUENCY DIVIDERS & DETECTORS - SMT
4
4 - 1
v01.0414
HMC905LP3E
6 GHz LOW NOISE PROGRAMMABLE
DIVIDER (N = 1 to 4)
General Description
Features
Functional Diagram
Typical Applications
The HMC905LP3E is a SiGe BiCMOS low noise
programmable frequency divider in a 3x3 mm lead-
less surface mount package. The circuit can be pro-
grammed to divide from N = 1 to N = 4 in the 400 MHz
to 6 GHz input frequency range. The high level out-
put power (up to 6 dBm single ended) with a very low
SSB phase noise and 50% duty cycle makes this
device ideal for low noise clock generation, LO
generation and LO drive applications. Congurable
bias and output power controls allow current
consumption and output power control. The device
incorporates a power down feature, good input
to output isolation and fast start up time. The
HMC905LP3E can be included into fast switching
“ping-pong” applications.
Low Noise Floor:
-164 dBc/Hz at 10 MHz Offset for N = 4
Programmable Frequency Divider, N = 1, 2, 3 or 4
400 MHz to 6 GHz Input Frequency Range
Up to +6 dBm Output Power
Sleep Mode: Consumes <1 µA
16 Lead 3X3 mm SMT Package: 9mm
2
Electrical Specications, T
A
= +25° C, Vcc = +3.3V, Z
o
= 50Ω
The HMC905LP3E is ideal for:
• LO Generation with Low Noise Floor
• Software Dened Radios
• Clock Generators
• Fast Switching Synthesizers
• Military Applications
• Test Equipment
• Sensors
Parameter Conditions Min. Typ. Max. Units
RF Input Characteristics
RF Input Frequency Single-ended input 400 6000
[1]
MHz
RF Input Power Single-ended input 0 6 10 dBm
Divider Output Characteristics
Output Power (Single-ended Out)
-Typically, 50 ohms load resistors connected to Vcc
- 1 bit programmable (CTRL digital signal)
[2]
-2 3 6 dBm
SSB Phase Noise @ 10 kHz Offset
+6 dBm Input Power, 6 GHz input,
Single-Ended Input and Output, Divide-by-4
[3]
-150 dBc/Hz
SSB Phase Noise @ 100 kHz Offset -158 dBc/Hz
SSB Phase Noise @ 10 MHz Offset -164 dBc/Hz
Start Up Time EN bit from OFF to ON State (0V to Vcc) 200 ns
Power Down Time EN bit from ON to OFF State (Vcc to 0V) 20 ns
Setting Time at Division Ratio Change
Delay from divide ratio change
to output frequency change
25 ns
[1] Maximum 5500 MHz in Divide by 2.
[2] See typical supply currents vs. BIAS0, BIAS1, CTRL bits table
[3] See Residual Phase Noise plot
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
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