CMM1331-SM
Advanced Product Specifications
October 2003
(1 of 2)
12.70 to 13.50 GHz
1.5 Watt Power Amplifier
Pin Functional Diagram
CMM1331-SM
Features
❏
32.0 dBm
(Typ.)
Saturated Output Power
❏
32.0 dB
(Typ.)
Linear Gain
❏
Fully Matched
❏
Unconditionally Stable
❏
Low-Cost Surface Mount Package
❏
Optimum Thermal Dissipation
Applications
❏
Ku-Band VSAT Transmit Subsystems
Vdd 1
GROUND 2
RF IN 3
GROUND 4
Vgg 5
10 Vdd
9 GROUND
8 RF OUT
7 GROUND
6 Vgg
Description
The CMM1331-SM is a four-stage pHEMT GaAs
MMIC power amplifier that is ideally suited for transmit
subsystems designed for Ku-Band VSAT applications. The
CMM1331-SM provides 32.0 dB linear gain and delivers
1.5 watts of output power at saturation operating from
12.70 to 13.50 GHz frequency.
The unconditional stability and internal matching
provides for reduction of external components making this
product a simple and low-cost solution. The low-cost, 6mm x
6mm x 1.6mm surface mount package offers the same excel-
lent RF and thermal properties as a typical flange package.
Electrical Characteristics
(T = +25°C, Vdd = 7V, Idq = 770mA)
Parameter
Condition
Min
Typ
Max
Units
Frequency Range
Output Power
Saturated Output Power
Output Power Variation
Linear Gain
Linear Gain Variation
Third Order Intercept Point
Input Reflection Coefficient
Output Reflection Coefficient
Gate Supply Voltage
Drain Current
Power Added Efficiency
@ 1dB compression
Pout at Pin = 5.0 dBm
Over operating frequency
Over operating frequency
12.70
30.0
31.0
29.0
13.50
31.0
32.0
1.0
32.0
36.0
-10.0
-7.0
-0.9
900
26
1.5
35.0
2.0
Idq = 770 mA
At Saturation
At Saturation
-1.1
22
-0.7
980
GHz
dBm
dBm
dBm
dB
dB
dBm
dB
dB
Volt
mA
%
Electrical Specifications
(TA = -40°C to +75°C)
Parameter
Condition
Min
Typ
Max
Units
Saturated Output Power
Linear Gain
Stability
Variation from Room Temperature
Variation from Room Temperature
-0.5
-2.5
3.5
Unconditionally stable
dBm
dB
Maximum Ratings
(TA = -40°C to +75°C) Operation outside these limits can cause permanent damage.
Parameter
Typ
Units
Parameter
Typ
Units
Drain Voltage (+Vdd)
Gate Voltage (Vgg)
Quiescent Current (Idq)
Gate Current (Ig)
3236 Scott Boulevard
8.5
-3.0
1000
5
Volts
Volts
mA
mA
RF Input Power (Pin)
Dissipated Power (Pdiss)
Storage Temperature
Operating Backside Temperature
Phone: (408) 986-5060
7.0
7.2
-50 to +150
-40 to +75
dBm
Watts
°C
°C
Santa Clara, California 95054
Fax: (408) 986-5095
CMM1331-SM
Physical Dimensions (
Bottom View)
Advanced Product Specifications - October 2003
(2 of 2)
Recommended Application Circuit
Note: This schematic represents the topology of the application circuit
recommended by Celeritek.
Vdd
0.1 µF
CMM1331-SM
1
50
Ω
RF IN
2
3
4
Vgg
0.1 µF
5
10
9
8
6
7
0.1 µF
Vgg
50
Ω
RF OUT
0.1 µF
Vdd
Note: Due to the high gain of this device it is highly recommended to maintain the
reverse isolation (S12) above 50 dB.
Biasing Notes
1. Dual bias is required
2. 0.1µF bypass capacitors are needed on PC board as close as possible to pins
1, 5, 6 and 10.
3. Positive (+) bias can be applied either at pin 1 or pin 6.
4. Negative (-) bias can be applied either at pin 5 or pin 6.
5. No DC block is required at RF IN/OUT.
6. Negative (-) bias must be applied before applying positive (+) bias.
Ordering Information
The CMM1331-SM is available in available in tube or tape and reel.
Package
Part Number for Ordering
CMM1331-SM
Surface mount package
Celeritek reserves the right to make changes without further notice to any products herein. Celeritek makes no warranty, representation or guarantee regarding the
suitability of its products for any particular purpose, nor does Celeritek assume any liability arising out of the application or use of any product or circuit, and specifically
disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating
parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Celeritek does not convey any license under its patent
rights nor the rights of others. Celeritek products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body,
or other applications intended to support or sustain life, or for any other application in which the failure of the Celeritek product could create a situation where personal
injury or death may occur. Should Buyer purchase or use Celeritek products for any such unintended or unauthorized application, Buyer shall indemnify and hold Celeritek
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out
of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Celeritek was negligent
regarding the design or manufacture of the part. Celeritek is a registered trademark of Celeritek, Inc. Celeritek, Inc. is an Equal Opportunity/Affirmative Action Employer.
3236 Scott Boulevard, Santa Clara, California 95054
Phone: (408) 986-5060
Fax: (408) 986-5095
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