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
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HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v09.0114
General Description
Features
Functional Diagram
The HMC394LP4 & HMC394LP4E are low noise
GaAs HBT programmable 5-bit counters in 4 x
4mm leadless surface mount packages. This device
allows continuous division from N= 2 to 32 at input
frequencies up to 2.2 GHz. The output voltage swing is
800 mV with a duty cycle inversely proportional to N.
The low additive SSB phase noise of -153 dBc/Hz at
100 KHz offset makes this counter an excellent choice
for low noise synthesizer applications.
SSB Phase Noise: -153 dBc/Hz @ 100 kHz
Selectable Division from 2 to 32
Parallel 5-Bit Control
Wide Input Power Range: -20 to +10 dBm
24 Lead 4x4mm QFN Package: 9 mm²
Electrical Specications, TA = +25° C, 50 Ohm System, Vcc= 5V
Typical Applications
Programmable divider for offset synthesizer
and variable divide by N applications:
• Satellite Communication Systems
• Point-to-Point and Point-to-Multi-Point Radios
LMDS
• SONET
Parameter Conditions Min. Typ. Max. Units
Maximum Input Frequency 2.2 GHz
Minimum Input Frequency Sine Wave Input [1] 0.1 GHz
Input Power Range Fin = 0.1 to 2.2 GHz -15 >-20 +10 dBm
Output Power Divide-by-2 4dBm
SSB Phase Noise Fin = 1 GHz, N = 4 -153 dBc/Hz
Output Transition Time 100 ps
Supply Current (Icc) 194 mA
1. Divider will operate down to DC for square-wave input signal.
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
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
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-30
-20
-10
0
10
20
0 0.5 1 1.5 2 2.5 3
INPUT POWER (dBm)
INPUT FREQUENCY (GHz)
SSB Phase Noise Performance,
Fin= 1 GHz, N= 4, T= 25 °C
Fundamental Feedthru Power,
Pin= 0 dBm, T= 25 °C
Input Sensitivity Window, 5 major
Divide Ratio States, T= 25 °C
Input Sensitivity Window vs.
Temperature, N= 16, T= -40 °C to +85 °C
Output Power, 5 Major Divide
Ratio States, T= 25 °C
Recommended
Operating Window
Typical Supply Current vs. Vcc
Note: Divider will operate over full voltage range shown
above.
Vcc (V) Icc (mA)
4.75 176
5.0 194
5.25 210
HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v09.0114
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
102103104105106107
SSB PHASE NOISE (dBc/Hz)
OFFSET FREQUENCY (Hz)
-20
-15
-10
-5
0
5
10
0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
Output Power (dBm)
INPUT FREQUENCY (GHz)
N=32
N=16
N=8
N=2 N=4
-30
-20
-10
0
10
20
0 0.5 1 1.5 2 2.5 3
INPUT POWER (dBm)
INPUT FREQUENCY (GHz)
-50
-40
-30
-20
-10
0
0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
N=2
N=4
N=8
N=16
N=32
OUTPUT LEVEL (dBm)
INPUT FREQUENCY (GHz)
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
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
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2nd Harmonic,
Pin= 0 dBm, T= 25 °C
3rd Harmonic,
Pin= 0 dBm, T= 25 °C
4th Harmonic,
Pin= 0 dBm, T= 25 °C
5th Harmonic,
Pin= 0 dBm, T= 25 °C
Output Voltage Wavform, Fin= 1 GHz,
N= 2, Pin= 0 dBm, T= 25 °C
Output Voltage Wavform, Fin= 1 GHz,
N= 17, Pin= 0 dBm, T= 25 °C
-100
0
100
200
300
400
500
48 50 52 54 56 58 60 62 64 66 68 70
AMPLITUDE (mV)
TIME (nS)
-30
-25
-20
-15
-10
-5
0
0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
N=2
N=4
N=8
N=16
N=32
OUTPUT LEVEL (dBm)
INPUT FREQUENCY (GHz)
-300
-200
-100
0
100
200
300
38 38.5 39 39.5 40 40.5 41
AMPLITUDE (mV)
TIME (nS)
-30
-25
-20
-15
-10
-5
0
0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
N=2
N=8
N=16
N=32
OUTPUT LEVEL (dBm)
INPUT FREQUENCY (GHz)
-20
-15
-10
-5
0
0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
OUTPUT LEVEL (dBm)
INPUT FREQUENCY (GHz)
N=2 N=4 N=8
N=32
N=16
-20
-15
-10
-5
0
0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
N=4
N=8
N=16
N=32
OUTPUT LEVEL (dBm)
INPUT FREQUENCY (GHz)
HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v09.0114
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
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
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Absolute Maximum Ratings
Outline Drawing
RF Input (Vcc = +5V) +13 dBm
Vcc +5.5V
VLogic -1.6 to -1.2 Vcc
Maximum Channel Temperature 135 °C
Continuous Pdiss (T = 85 °C)
(derate 55 mW/°C above 85 °C) 1.155 W
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE
SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED
LAND PATTERN.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v09.0114
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC394LP4 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H394
XXXX
HMC394LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H394
XXXX
[1] Max peak reow temperature of 235 °C
[2] Max peak reow temperature of 260 °C
[3] 4-Digit lot number XXXX
Package Information
Thermal Resistance (u
j-c ) Junction to
Case (Ground Paddle) 21.5 °C/ W
Storage Temperature -65 to +150°C
Operating Temperature +55 to +85°C
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
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
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Pin Description
Pin Number Function Description Interface Schematic
1 - 5 AO - A4 CMOS compatible control input bit 0 (LSB) - 4.
6, 9, 10, 11,
12, 15, 18,
19, 20, 21, 22
GND Ground: Backside of package has exposed metal ground slug which
must be connected to ground.
7, 8, 23, 24 VCC Supply voltage 5V ± 0.25V must be applied to all four pins.
13 IN RF input 180° out of phase with pin 14 must be AC ground.
14 IN RF input must be DC blocked.
16 OUT Divided output pulse.
17 OUT Divided output pulse 180° out of phase with pin 16.
HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v09.0114
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
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
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HMC394LP4 Programming Truth Table
Application Circuit, (2 GHz - Divide-by-20)
* Note: Mount bypass capacitors as close to pins as possible.
Function (LSB)
A0 A1 A2 A3 A4
Output Low 0 0 0 0 0
/ 2 1 0 0 0 0
/ 3 0 1 0 0 0
/ 4 1 1 0 0 0
- - - - - -
/ 32 1 1 1 1 1
Note: A0 through A4 are CMOS compatible logic control inputs.
HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v09.0114
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
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
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The circuit board used in the application should use RF circuit design techniques. Signal lines should have 50
Ohm impedance while the package ground leads and backside ground slug should be connected directly to
the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and
bottom ground planes. The evaluation circuit board shown is available from Hittite upon request.
Evaluation PCB
List of Materials for
Evaluation PCB 104898 [1]
Note: The evaluation PCB for the HMC394LP4 contains
10K Ohm pull up resistors for each of the ve control inputs
A0 through A4. Programming the 31 distinct division ratios
consists of installing or removing jumpers S1 through S5, as
shown above. Jumper S6 must always be installed to provide
ground to pin 20.
HMC394LP4 Evaluation
PCB Truth Table
Function S1 S2 S3 S4 S5
Output Low 0 0 0 0 0
/ 2 1 0 0 0 0
/ 3 0 1 0 0 0
/ 4 1 1 0 0 0
- - - - - -
/ 32 1 1 1 1 1
Note: 0 = Jumper Installed.
1 = Jumper Not Installed.
Item Description
J1 - J3 PCB Mount SMA RF Connector
C1 - C2 [2] 1.0 µF Tantalum Capacitor
C3 - C4 [2] .01 µF Capacitor, 0603 Pkg.
C5 - C8 1000 pF Capacitor, 0603 Pkg.
R1* Resistor SIP 10 K ohm
S1 - S6 Jumper (shunt) 2mm
U1 HMC394LP4 / HMC394LP4E
5-Bit Counter
PCB 104435 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Optional components.
HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v09.0114
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
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
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Applications Information
Simplied Block Diagram
Asynchronous Programming
The 5-Bit programmable counter counts-down from the programmed value of the data bits to zero and issues an
output pulse at the end of each cycle. Settling time of the programmable 5-Bit counter is dened as the maximum
time required for the counter to change the division ratio N to a new value after the data bits have settled. The worst
case settling time occurs if the data bits A0 thru A4 are changing during the load cycle. Under this condition, the
data bits may potentially be erroneous when they are clocked in and in the worst case could be all 1’s, requiring 32
clock cycles until the correct data is re-loaded into the ip ops. The worst case asynchronous settling time can be
calculated as follows:
TSETTLING MAX = 32/fIN (For Asynchronous Programming)
As an example, if the input frequency is 1 GHz, the maximum settling time is 32 nS
HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v09.0114
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
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
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Synchronous Programming
For applications which can not tolerate a momentary undened division ratio, which normally occurs while changing
the data bits (A0-A4) at random, synchronous programming can be used. Data is loaded into the counter on every
rising edge of the clock which occurs while the output (OUT) isHIGH”. The typical minimum setup and hold times are
shown in the table below as a function of frequency. For precision applications, the rising edge of the complementary
output may be used to latch the new data bits (A0-A4), so that all bits are settled before the next load cycle.
TSETTLING MAX = N/fIN (For Synchronous Programming)
Where N is the desired division ratio, and fIN = Input Frequency (Hz)
Programmable Divider Timing Requirements
for Synchronous Programming
Programmable Divider Timing Requirements
for Synchronous Programming
IN
OUT
OUT
CURRENT DATA NEW DATA
A0-A4
tSU
tHOLD
Data Load
Rising Edge
Rising Edge to
Clock New Data
Parameter 0.5 GHz 1 GHz 2 GHz
tSETUP 200 ps 200 ps 200 ps
tHOLD 700 ps 300 ps 120 ps
HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v09.0114
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
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
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CMOS/TTL Input Characteristics
Maximum Input Logic “0” Voltage (VIL MAXIMUM) = 1.1V @ 10 uA.
Minimum Input Logic “1” Voltage (VIH MINIMUM) = 1.8V @ 500 uA.
Input IV characteristics for the logic inputs (A0-A4) are shown below:
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
012345
Input Current (mA)
Input Voltage (V)
V
IL MAX
V
IH MIN
HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v09.0114
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