Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 1 of 4 April 2006
ECG008
InGaP HBT Gain Block Product Information
The Communications Ed
g
e TM
Product Features
• DC – 4 GHz
• +24 dBm P1dB at 1 GHz
• +40 dBm OIP3 at 1 GHz
• 15 dB Gain at 1 GHz
• 4.6 dB Noise Fi gure
• Available in Lead-free / green
SOT-89 Package Style
• Internally matched to 50 Ω
Applications
• Mobile Infrastru cture
• CATV / FTTX
• W-LAN / ISM
• RFID
• WiMAX / WiBro
Product Description
The ECG008 is a general-purpose buffer amplifier that
offers high dynamic range in a low-cost surface-mount
package. At 1000 MHz, the ECG008 typically provides 15
dB of gain, +40 dBm Output IP3, and +24 dBm P1dB.
The ECG008 consists of Darlington pair amplifiers using
the high reliability InGaP/GaAs HBT process technology
and only requires DC-blocking capacitors, a bias resistor,
and an inductive RF choke for operation. The device is
ideal for wireless applications and is available in a lead-
free/green/RoHS-compliant SOT-89 package. All devices
are 100% RF and DC tested.
The broadband MMIC amplifier can be directly applied to
various current and next generation wireless technologies
such as GPRS, GSM, CDMA, and W-CDMA. In addition,
the ECG008 will work for other various applications within
the DC to 4 GHz frequency range such as CATV and
mobile wireless.
Functional Diagram
RF IN GND RF OUT
GND
1 23
4
Function Pin No.
Input 1
Output/Bias 3
Ground 2, 4
Specifications (1)
Parameter Units Min Typ Max
Operational Bandwidth MHz DC 4000
Test Frequency MHz 1000
Gain dB 15
Output P1dB dBm +24
Output IP3 (3) dBm +40
Noise Figure dB 4.6
Test Frequency MHz 2000
Gain dB 13 14.3
Input Return Loss dB 25
Output Return Loss dB 14
Output P1dB dBm +23
Output IP3 (2) dBm +34 +37
Noise Figure dB 4.8
Device Voltage V 6.8 7.3 7.8
Device Current mA 120
Output mismatch w/o spurs VSWR 10:1
1. Test conditions unless otherwise noted: 25 ºC, Supply voltage = +9 V, Rbias = 14 Ω, 50 Ω system.
2. 3OIP measured with two tones at an output power of +9 dBm/tone separated by 1 MHz. The
suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.
Absolute Maximum Rating
Parameter Rating
Operating Case Temperature -40 to +85 °C
Storage Temperature -65 to +150 °C
RF Input Power (continuous) +15 dBm
Device Current 160 mA
Junction Temperature +250 °C
Operation of this device above any of these parameters may cause permanent damage.
Typical Performance (1)
Parameter Units Typical
Frequency MHz 500 900 1900 2140
S21 dB 14.7 14.6 14.3 14.3
S11 dB -26 -28.5 -28 -19.5
S22 dB -19.4 -17.4 -13.4 -15
Output P1dB dBm +24.3 +24 +23.3 +19.0
Output IP3 dBm +41 +40 +37 +30.5
Noise Figure dB 4.7 4.6 4.7 4.8
Ordering Information
Part No. Description
ECG008B-G InGaP HBT Gain Block
(lead-free/green/RoHS-compliant SOT-89 package)
ECG008B-PCB 700 –2400 MHz Fully Assembled Eval. Board
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 2 of 4 April 2006
ECG008
InGaP HBT Gain Block Product Information
The Communications Ed
g
e TM
Typical Device RF Performance (3)
Supply Bias = +9 V, Rbias = 14 Ω, Icc = 120 mA
Frequency MHz 100 500 900 1900 2140 2400 3500 5800
S21 dB 14.8 14.7 14.6 14.3 14.3 14.2 14.5 12.4
S11 dB -25 -26 -28.5 -28 -25 -23.2 -15.4 -6
S22 dB -20 -19 -17 -13 -13 -12 -7.9 -2.7
Output P1dB dBm +24.5 +24.3 +24 +23.2 +22.8 +21.8 +17.3
Output IP3 dBm +41.6 +41 +40 +37 +36 +34
Noise Figure dB 4.9 4.7 4.6 4.7 4.9 5.2
1. Test conditions: T = 25º C, Supply Voltage = +9 V, Device Voltage = 7.3 V, Rbias = 14 Ω, Icc = 120 mA typical, 50 Ω System.
2. 3OIP measured with two tones at an output power of +9 dBm/tone separated by 1 MHz. The suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.
3. Data is shown as device performance only. Actual implementation for the desired frequency band will be determined by external components shown in the application circuit. The performance data does not
account for losses attributed to recommended input and output series resistances shown in the application circuit on page 3.
G ain vs. Frequency
10
12
14
16
18
20
500 1000 1500 2000 2500 3000
Frequency (M Hz)
Gain
(
dB
)
+25°C -40°C +85°
C
S11, S22 vs. Frequen cy
-40
-35
-30
-25
-20
-15
-10
-5
0
0123456
Frequency (G Hz)
S11, S22
(
dB
)
S11
S2
2
Vd e vs. Icc
0
20
40
60
80
100
120
140
0.0 2.0 4.0 6.0 8.0 10.0
Vde (V)
Icc
(
mA
)
+25°C
OIP3 vs. Frequency
25
30
35
40
45
500 1000 1500 2000 2500 3000
Frequency (M Hz)
Ou
p
ut IP3
(
dBm
)
+25°C -40°C +85°C
Noise Figure vs. Frequency
2
2.5
3
3.5
4
4.5
5
500 1000 1500 2000
Frequency (M Hz)
NF
(
dB
)
P1d B vs. Frequency
10
15
20
25
30
500 1000 1500 2000 2500 3000
Frequency (M Hz)
P1dB
(
dBm
)
+25°C -40°C +85°
C
S-Parameters (Vdevice = +7.3 V, ICC = 120 mA, T = 25°C, calibrated to device leads)
Freq (MHz) S11 (dB) S11 (ang ) S21 (dB) S21 (ang) S12 (dB) S12 (ang) S22 (dB) S22 (ang)
50 -24.87 176.05 14.88 177.77 -18.94 -1.51 -20.41 -4.20
500 -26.14 167.68 14.71 161.26 -18.94 -5.99 -19.43 -39.76
1000 -28.46 166.94 14.60 142.99 -19.02 -11.44 -17.47 -72.27
1500 -30.86 -178.22 14.39 125.46 -18.94 -16.56 -15.40 -95.62
2000 -28.14 -144.76 14.30 108.38 -18.86 -21.00 -13.40 -116.18
2500 -23.15 -137.68 14.20 91.08 -18.64 -25.54 -11.63 -133.34
3000 -18.78 -150.37 14.30 74.41 -18.20 -29.98 -9.65 -151.20
3500 -15.39 -171.26 14.48 56.29 -17.52 -36.74 -7.83 -171.17
4000 -12.91 161.38 14.65 35.57 -16.85 -45.50 -6.06 165.56
4500 -10.59 132.87 14.51 13.60 -16.36 -56.53 -4.68 141.33
5000 -8.44 105.27 14.04 -8.75 -16.20 -68.74 -3.62 117.07
5500 -6.76 80.71 13.17 -31.25 -16.26 -81.52 -2.87 94.30
6000 -5.43 61.63 12.10 -50.89 -16.59 -93.75 -2.41 73.89
Device S-parameters are available for download off of the website at: http://www.wj.com
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 3 of 4 April 2006
ECG008
InGaP HBT Gain Block Product Information
The Communications Ed
g
e TM
Recommended Application Circuit
Recommended Component Values
Reference Frequency (MHz)
Designator 50 500 900 1900 2200 2500 3500
L1 820 nH 220 nH 68 nH 27 nH 22 nH 18 nH 15 nH
C1, C2, C3 .018 µF 1000 pF 100 pF 68 pF 68 pF 56 pF 39 pF
1. The proper values for the components are dependent upon the inte nded frequency of operation.
2. The component values in the table below are contained on the evaluation board to achieve optimal broadband
performance.
3. R1 and R2 are shown in the circuit diagram to avoid potential instabilities. The configuration shown above assures
of unconditional stability with the use of the device. It is expected that linearity parameters (OIP3 and P1dB) to
degrade about only 0.5 dB, while overall gain will be about 2 dB less than the performance shown in page 1 and 2 of
this data sheet. Input and output re turn loss is expected to improve with the use of the I/O series resi stances at 2 GHz.
Ref. Desig. Value / Type Size
L1 39 nH wirewound inductor 0603
C1, C2 56 pF chip capacitor 0603
C3 0.018 μF chip capacitor 0603
C4 Do Not Place
R1 18 Ω chip resistor 0603
R2 4.7 Ω chip resistor 0603
R3 14 Ω 1% tolerance 2010
Recommended Bias Resistor Values
Supply
Voltage R3 val ue Size
9 V 14 ohms 2010
10 V 23 ohms 2512
12 V 39 ohms 2512
The proper value for R3 is dependent upon the supply
voltage and allows for bias stability over temperature.
WJ recommends a minimum supply bias of +9 V. A
1% tolerance resistor is recommended.
ECG008B-PCB Performance Data
(WJ’s evaluation board uses the circuit shown above.)
Gain
4
6
8
10
12
14
01234
Frequency (GHz)
Return Loss
-30
-20
-10
0
01234
Frequency (GHz)
S11 S22
C1
Blocking
Capacitor
RF OUT
L1
RF Choke
C3
0.018 µF
R3
Bias
Resisto
r
RF IN
C4
Bypass
Capacito
r
C2
Blocking
Ca
p
acito
r
Vcc
Icc = 120 mA
ECG008B
R1
18 Ω R2
4.7 Ω
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 4 of 4 April 2006
ECG008
InGaP HBT Gain Block Product Information
The Communications Ed
g
e TM
ECG008B-G Mechanical Information
This package is lead-free/Green/RoHS-compliant. The plating material on the leads is NiPdAu. It is compatible with both lead-free
(maximum 260 °C reflow temperature) and leaded (maximum 245 °C reflow temperature) soldering processes.
Outline Drawing
Land Pattern
Product Marking
The component will be marked with an
“E008G” designator with an alphanumeric lot
code on the top surface of the package. The
obsolete tin-lead package is marked with an
“E008” designator followed by an
alphanumeric lot code; it may also have been
marked with an “6” designator followed by a 3-
digit numeric lot code.
Tape and reel specifications for this part are
located on the website in the “Application
Notes” section.
MSL / ESD Rating
ESD Rating: Class 1A
Value: Passes between 250 and 500V
Test: Human Body Model (HBM)
Standard: JEDEC Standard JESD22-A114
MSL Rating: Level 3 at +260 °C convection r eflow
Standard: JEDEC Standard J-STD-020
Mounting Config. Notes
1. Ground / thermal vias are critical for the prop er p erformance o f this
device. Vias should use a .35mm (#80 / .0135”) diameter drill and
have a final plated thru diameter of .25 mm (.010”).
2. Add as much copper as possible to inner and outer layers near the
part to ensure optimal thermal performance.
3. Mounting screws can be added near the part to fasten the board to a
heatsink. Ensure that the ground / thermal via region contacts the
heatsink.
4. Do not put solder mask on the backside of the PC board in the
region where the board contacts the heatsink.
5. RF trace width depends upon the PC board material and
construction.
6. Use 1 oz. Copper minimum.
7. All dimensions are in millimeters (inches). Angles are in degrees.
