1 of 10
Optimum Technology Matching® Applied
GaAs HBT
InGaP HBT
GaAs MESFET
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
Functional Block Diagram
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
Product Description
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
BiFET HBT
LDMOS
CXE-2089Z
LINEAR GENERAL PURPOSE AMPLIFIER
The CXE-2089Z is a general purpose, low-cost, high-linearity RF amplifier
IC. The device is manufactured on a Gallium Arsenide process and is fea-
tured in a small SOT-89 package. It has been designed for use as an easily
cascadable 75 gain block with a noise figure of less than 2dB. Gain flat-
ness better than 0.5dB from 50MHz to 1000MHz, and high linearity make
this part ideal for cable TV applications. Other applications include IF and
RF amplification in wireless voice and data communication products oper-
ating in the 50MHz to 1000MHz frequency range. The device is self-con-
tained with 75 input and output impedances providing less than 2:1
VSWR matching. For higher input and output return losses, see the evalu-
ation schematic.
Features
50MHz to 1000MHz
Operation
Internally Matched Input and
Output
20dB Small Signal Gain
1.5dB Noise Figure
+24dBm Output Power
Single 5V to 9V Positive
Power Supply
Applications
CATV Distribution Amplifiers
Cable Modems
Broadband Gain Blocks
Laser Diode Driver
Return Channel Amplifier
Base Stations
DS110930
Package: SOT-89
2 of 10
CXE-2089Z
DS110930
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
Absolute Maximum Ratings
Parameter Rating Unit
Device Current 175 mA
Device Voltage 9 V
Input RF Power +10 dBm
Output Load VSWR 20:1
Ambient Operating Temperature -40 to +85* °C
Storage Temperature -40 to +150 °C
*Note: Case Temperature
Parameter Specification Unit Condition
Min. Typ. Max.
Electrical Characteristics
(75)
T=25oC, VDD=7V, IDD =105mA, 75 System,
PIN=-8dBm
Frequency Range 50 1000 MHz 3dB Bandwidth
Gain 20 dB 50MHz to 1000MHz
Gain Flatness +0.5 dB 50MHz to 1000MHz
Reverse Isolation 24 dB 50MHz to 1000MHz
Noise Figure 1.5 dB 500MHz
1.5 dB 50MHz to 1000MHz
Output IP338.5 dBm POUT=0dBm, 50MHz, 6MHz tone spacing
36 dBm POUT=0dBm, 500MHz, 6MHz tone spacing
36 dBm POUT=0dBm, 1000MHz, 6MHz tone spacing
Output IP250.1 dBm POUT=0dBm, 50MHz, 55.25MHz tone spacing
48 dBm POUT=0dBm, 500MHz, 55.25MHz tone spac-
ing
45 dBm POUT=0dBm, 1000MHz, 55.25MHz tone spac-
ing
Output IP1dB 23 dBm PIN =-8dBm, 50MHz
23 dBm PIN=-8dBm, 500MHz
22 dBm PIN=-8dBm, 1000MHz
Input Return Loss 13 dB 50MHz to 1000MHz
Output Return Loss 14 dB 50MHz to 1000MHz
CSO 65 dBc 55.25MHz to 550MHz, 110 CH, Flat Tilt,
+20dBmV out
CTB 75 dBc 55.25MHz to 550MHz, 110 CH, Flat Tilt,
+20dBmV out
XMOD 80 dBc 55.25MHz to 550MHz, 110 CH, Flat Tilt,
+20dBmV out
Device Operating Voltage 678V
Device Operating Current 105 mA
Thermal Resistance °C/W Junction to lead
Caution! ESD sensitive device.
Exceeding any one or a combination of the Absolute Maximum Rating conditions may
cause permanent damage to the device. Extended application of Absolute Maximum
Rating conditions to the device may reduce device reliability. Specified typical perfor-
mance or functional operation of the device under Absolute Maximum Rating condi-
tions is not implied.
The information in this publication is believed to be accurate and reliable. However, no
responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any
infringement of patents, or other rights of third parties, resulting from its use. No
license is granted by implication or otherwise under any patent or patent rights of
RFMD. RFMD reserves the right to change component circuitry, recommended appli-
cation circuitry and specifications at any time without prior notice.
RFMD Green: RoHS compliant per EU Directive 2002/95/EC, halogen free
per IEC 61249-2-21, < 1000ppm each of antimony trioxide in polymeric
materials and red phosphorus as a flame retardant, and <2% antimony in
solder.
3 of 10
CXE-2089Z
DS110930
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
Application Note
Due to design characteristics of the CXE-2089Z Linear Gain Amplifier, improvements in multi-tone distortion performance will
be seen with increased operating current up to 130mA. Degradation in multi-tone distortion may be seen when operating at
current levels below 105mA.
Parameter Specification Unit Condition
Min. Typ. Max.
Electrical Characteristics
(50)
T=25oC, VDD=7V, IDD =105mA, 50 System,
PIN=-8dBm
Frequency Range 50 1000 MHz 3dB Bandwidth
Gain TBD 20 TBD dB 50MHz to 1000MHz
Gain Flatness TBD +0.5 TBD dB 50MHz to 1000MHz
Reverse Isolation TBD 24 TBD dB 50MHz to 1000MHz
Noise Figure TBD 1.4 TBD dB 500MHz
TBD 1.5 TBD dB 50MHz to 1000MHz
Output IP3TBD 34.5 TBD dBm POUT=0dBm, 50MHz, 6MHz tone spacing
TBD 33 TBD dBm POUT=0dBm, 500MHz, 6MHz tone spacing
TBD 35 TBD dBm POUT=0dBm, 1000MHz, 6MHz tone spacing
Output IP2TBD 46 TBD dBm POUT=0dBm, 50MHz, 156MHz tone spacing
TBD 45 TBD dBm POUT=0dBm, 500MHz, 156MHz tone spacing
TBD 42 TBD dBm POUT=0dBm, 1000MHz, 156MHz tone spac-
ing
Output IP1dB TBD 23 TBD dBm PIN=-8dBm, 50MHz
TBD 23 TBD dBm PIN=-8dBm, 500MHz
TBD 22 TBD dBm PIN=-8dBm, 1000MHz
Input Return Loss TBD 11 TBD dB 50MHz to 1000MHz
Output Return Loss TBD 15 TBD dB 50MHz to 1000MHz
Device Operating Voltage 678V
Device Operating Current 105 mA
Thermal Resistance °C/W Junction to lead
4 of 10
CXE-2089Z
DS110930
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
Typical Performance Curves (75)
0
20
40
60
80
100
120
0 100 200 300 400 500 600
XMOD
(dBc)
Frequency (MHz)
XMOD
110 Channels +20dBmV Output
-40
25
85
0
20
40
60
80
100
120
0 100 200 300 400 500 600
CSO (dBc)
Frequency (MHz)
CSO (Upper)
110 Channels +20dBmV Output
-40
25
85
-30
-25
-20
-15
-10
-5
0
0 200 400 600 800 1000 1200
S11 (dB)
Frequenc y (MHz)
Input Return Loss
-40
25
85
0
20
40
60
80
100
120
0.0 100.0 200.0 300.0 400.0 500.0 600.0
CTB (dBc)
Frequency (MHz)
CTB
110 Channels +20dBmV Output
-40
25
85
0
20
40
60
80
100
120
0 100 200 300 400 500 600
CSO (dBc)
Frequency (MHz)
CSO (Lower)
110 Channels +20dBmV Output
-40
25
85
-30
-25
-20
-15
-10
-5
0
0 200 400 600 800 1000 1200
S22 (dB)
Frequency (MHz)
Output Return Loss
-40
25
85
5 of 10
CXE-2089Z
DS110930
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
Typical Performance Curves (75)
-30
-25
-20
-15
-10
-5
0
0 200 400 600 800 1000 1200
S12 (dB)
Frequency (MHz)
Reverse Isolation
-40
25
85
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 200 400 600 800 1000 1200
Noise
Figure
(dB)
Frequency (MHz)
Noise Figure
-40
25
85
0
10
20
30
40
50
60
0 200 400 600 800 1000 1200
OIP2 (dB)
Frequency (MHz)
Output IP2
-40
25
85
0
5
10
15
20
25
30
0 200 400 600 800 1000 1200
S21(dB)
Frequency (MHz)
Gain
-40
25
85
0
5
10
15
20
25
30
35
40
0 200 400 600 800 1000 1200
P1dB (dB)
Frequency (MHz)
Output P1dB
-40
25
85
0.0
10. 0
20.0
30.0
40.0
50.0
60.0
0.0 200.0 400.0 600.0 800.0 1000.0 1200.0
OIP3 (dB)
Frequency (MHz)
Output IP3
-40
25
85
6 of 10
CXE-2089Z
DS110930
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
Typical Performance Curves (50)
-30
-25
-20
-15
-10
-5
0
0 200 400 600 800 1000 1200
S11 (dB)
Frequency (MHz)
Input Return Loss
-40
25
85
-30
-25
-20
-15
-10
-5
0
0 200 400 600 800 1000 1200
S12 (dB)
Frequency (MHz)
Reverse Isolation
-40
25
85
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0.0 200.0 400.0 600.0 800.0 1000.0 1200.0
Noise
Figure
(dB)
Frequency (MHz)
Noise Figure
-40
25
85
-30
-25
-20
-15
-10
-5
0
0 200 400 600 800 1000 1200
S22 (dB)
Frequency (MHz)
Output Return Loss
-40
25
85
0
5
10
15
20
25
30
0 200 400 600 800 1000 1200
S21(dB)
Frequency (MHz)
Gain
-40
25
85
0
5
10
15
20
25
30
35
40
0 200 400 600 800 1000 1200
P1dB
(dB)
Frequency (MHz)
Output P1dB
-40
25
85
7 of 10
CXE-2089Z
DS110930
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
Typical Performance Curves (50)
0
10
20
30
40
50
60
0 200 400 600 800 1000 1200
OIP2 (dB)
Frequency (MHz)
Output IP2
-40
25
85
0
10
20
30
40
50
60
0 200 400 600 800 1000 1200
OIP3 (dB)
Frequency (MHz)
Output IP3
-40
25
85
8 of 10
CXE-2089Z
DS110930
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
Application Schematic - 50 and 75
50MHz to 1000MHz Linear Driver
Application Circuit Component Values
Pin Function Description
1RF IN
RF Input Pin. This pin requires the use of an external DC-blocking capacitor chosen for the frequency of opera-
tion.
2, 4 GND Connection to ground. Use via holes for best performance to reduce lead inductance as close to ground leads
as possible.
3RF OUT/BIAS
RF Output and bias pin. DC-voltage is present on this pin, therefore a DC-blocking capacitor is necessary for
proper operation.
Reference Designator Description
JP1 3 Pin Polarized C onnector - ITW Pancon
J1, J3 Coax F - Trompeter Electronics SMA - Heilind Electronics
L1 1uH - Coilcraft
L2 10nH - Toko America
C1 1uF - Panasonic Industrial
C3, C4 10000pF - Panasonic Industrial
C2 1200pF - Panasonic Industrial
C6 1.8pF - Taiyo Yuden
1 3
2
L2
10 nH
C6
1.8 pF
C3
10 nF
J1
L1
1 uH
C4
10 nF
J2
C2
1200 pF
C1
1 uF
VDD
U1
CXE-2089Z
4
9 of 10
CXE-2089Z
DS110930
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
Evaluation Board Layout - 75
Evaluation Board Layout - 50
10 of 10
CXE-2089Z
DS110930
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
Package Drawing
Package Style: SOT-89
Ordering Information
Part Number Description Reel Size (in) Devices/Reel
CXE-2089ZSB 5pcs Sample Bag N/A N/A
CXE-2089ZSQ 25pcs Sample Bag N/A N/A
CXE-2089ZSR Amplifier, Lead Free, RoHS Compliant 7 100
CXE-2089ZTR7 Amplifier, Lead Free, RoHS Compliant 7 2500
CXE-2089ZPCK-410 75 Evaluation Board and 5pcs Sample Bag N/A N/A
CXE-2089ZPCK-411 50 Evaluation Board and 5pcs Sample Bag N/A N/A
