DATA SHEET
SKY67151-396LF: 0.7 to 3.8 GHz Ultra Low-Noise Amplifier
Applications
LTE, GSM, WCDMA, HSDPA macro and micro base stations
L and S band ultra low-noise receivers
Cellular repeaters, DAS and RRH/RRUs
High temperature transceiver applications to +105 °C
RF_IN
RF_OUT/VDD
Features
Ultra-low Evaluation Board NF:
0.25 dB @ 849 MHz
0.35 dB @ 1850 MHz
0.50 dB @ 2500 MHz
0.70 dB @ 3600 MHz
High OIP3 performance: >+34 dBm over 700 to 3800 MHz
Adjustable supply current from 30 to 100 mA
Flexible bias voltage: 3 to 5 V
Temperature and process-stable active bias
Miniature DFN (8-pin, 2 x 2 mm) package
(MSL1 @ 260
C
per JEDEC J-STD-020)
Skyworks Green
TM
products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to
Skyworks
Definition of Green
TM
, document number
SQ04–0074.
VBIAS
Active
Bias
202390-001
Figure 1. SKY67151-396LF Block Diagram
Description
The SKY67151-396LF is GaAs, pHEMT low-noise amplifier (LNA)
with an active bias, high linearity, superior gain, and industry-
leading noise figure (NF) performance from 700 to 3800 MHz. The
device features Skyworks advanced, pHEMT enhancement mode
process in a compact 2 x 2 mm, 8-pin Dual Flat No-Lead (DFN)
package.
The internal active bias circuitry provides stable performance over
temperature and process variation. The device offers the ability to
externally adjust supply current. Supply voltage is applied to the
RFOUT/VDD pin through an RF choke inductor. The RFIN and
RFOUT/VDD pins should be DC blocked to ensure proper
operation.
The SKY67151-396LF operates in the frequency range of 0.7 to
3.8 GHz using a common layout and band-specific tunes.
N/C
RFIN
VBIAS
N/C
1
8
N/C
RFOUT/VDD
N/C
N/C
2
7
A functional block diagram is shown in Figure 1. The pin
configuration and package are shown in Figure 2. Signal pin
assignments and functional pin descriptions are provided in
Table 1.
3
6
4
5
202390-002
Figure 2. SKY67151-396LF Pinout – 8-Pin DFN
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202390G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 4, 2017
1
DATA SHEET • SKY67151-396LF: ULTRA LOW-NOISE AMPLIFIER
Table 1. SKY67151-396LF Signal Descriptions
Pin
1
2
3
4
N/C
RFIN
VBIAS
N/C
Name
Description
No connection. May be connected to ground
with no change in performance.
RF input. DC blocking capacitor required.
Bias voltage for input gate. External resistor
sets current consumption.
No connection. May be connected to ground
with no change in performance.
Pin
5
6
7
8
N/C
N/C
RFOUT/VDD
N/C
Name
Description
No connection. May be connected to ground
with no change in performance.
No connection. May be connected to ground
with no change in performance.
RF output. Apply VDD through RF choke
inductor. DC blocking capacitor required.
No connection. May be connected to ground
with no change in performance.
Table 2. SKY67151-396LF Absolute Maximum Ratings
1
Parameter
Supply voltage
Quiescent supply current
RF input power
Storage temperature
Operating temperature
Electrostatic discharge:
Charged Device Model (CDM), Class 4
Human Body Model (HBM), Class 1A
Machine Model (MM), Class A
V
DD
I
DQ
P
IN
T
STG
T
A
ESD
1000
250
30
V
V
V
–40
–40
Symbol
Minimum
Maximum
5.5
120
+21
+150
+105
Units
V
mA
dBm
C
C
1 Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters
set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
ESD HANDLING:
Although this device is designed to be as robust as possible, electrostatic discharge (ESD) can damage this device.
This device must be protected at all times from ESD when handling or transporting. Static charges may easily produce
potentials of several kilovolts on the human body or equipment, which can discharge without detection.
Industry-standard ESD handling precautions should be used at all times.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY67151-396LF are
provided in Table 2. Electrical specifications are provided in
Tables 3 through 8.
Typical performance characteristics are illustrated in Figures 3
through 21.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
May 4, 2017 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202390G
DATA SHEET • SKY67151-396LF: ULTRA LOW-NOISE AMPLIFIER
Table 3. SKY67151-396LF Electrical Specifications: Thermal Data
1
(V
DD
= 5 V, T
A
= +25
C,
P
IN
= –25 dBm, Characteristic Impedance [Z
O
] = 50
Ω,
Unless Otherwise Noted)
Parameter
Thermal resistance
Channel temperature @ +85 °C reference
(package heat slug)
1 Performance is guaranteed only under the conditions listed in this table.
Symbol
Θ
JC
Test Condition
Min
Typ
45
Max
Units
°C/W
°C
V
DD
= 5 V, I
DQ
= 70 mA, no
RF applied, dissipated
power = 0.35 W
101
Table 4. SKY67151-396LF Electrical Specifications: 2300 to 2700 MHz Optimized Tuning
1
(V
DD
= 5 V, T
A
= +25
C,
P
IN
= –20 dBm, Characteristic Impedance [Z
O
] = 50
Ω,
Unless Otherwise Noted)
Parameter
RF Specifications
Noise figure
Small signal gain
Input return loss
Output return loss
Reverse isolation
Third order input intercept point
NF
|S
21
|
|S
11
|
|S
22
|
|S
12
|
IIP3
@ 2500 MHz, includes
Evaluation Board loss
@ 2500 MHz
@ 2500 MHz
@ 2500 MHz
@ 2500 MHz
@ 2500 MHz,
Δf
= 1 MHz,
P
IN
= –20 dBm/tone
@ 2500 MHz,
Δf
= 1 MHz,
P
IN
= –20 dBm/tone
@ 2500 MHz
@ 2500 MHz
17.5
0.50
19.0
11
20
28
0.65
dB
dB
dB
dB
dB
Symbol
Test Condition
Min
Typ
Max
Units
+14
+17
dBm
Third order output intercept point
OIP3
+33
0
+18
+36
+1.7
+19.7
dBm
dBm
dBm
1 dB input compression point
1 dB output compression point
DC Specifications
Supply voltage
Quiescent supply current
Bias current
IP1dB
OP1dB
V
DD
I
DQ
I
BIAS
Set with external resistor
58
5
72
500
86
V
mA
μA
1 Performance is guaranteed only under the conditions listed in this table.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202390G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 4, 2017
3
DATA SHEET • SKY67151-396LF: ULTRA LOW-NOISE AMPLIFIER
Typical Performance Characteristics, 2300 to 2700 MHz
(V
DD
= 5 V, T
A
= +25
C,
P
IN
= –20 dBm, Characteristic Impedance [Zo] = 50
Ω,
Unless Otherwise Noted)
1.2
20.5
Small Signal Gain
(dB)
1.0
20.0
19.5
19.0
18.5
18.0
17.5
17.0
2.2
2.3
2.4
2.5
2.6
2.7
2.8
Noise Figure (dB)
0.8
0.6
0.4
0.2
0
2.2
2.3
2.4
2.5
2.6
2.7
2.8
–40 °C
+25 °C
+85 °C
+105 °C
–40 °C
+25 °C
+85 °C
+105 °C
2.9
3.0
2.9
3.0
Frequency (GHz)
Figure 3. Evaluation board NF vs Frequency Over Temperature
Frequency (GHz)
Figure 4. Narrow Band Gain vs Frequency Over Temperature
+30
–6
Small Signal Gain
(dB)
+10
0
–10
–20
–30
Input Return Loss (dB)
+20
–40 °C
+25 °C
+85 °C
+105 °C
–8
–10
–12
–14
–16
–18
–20
2.2
2.3
2.4
2.5
2.6
2.7
2.8
–40 °C
+25 °C
+85 °C
+105 °C
202390-005
–50
–60
0
2
4
6
8
10
12
14
16
18
20
22
24
2.9
3.0
Frequency (GHz)
Figure 5. Broadband Gain vs Frequency Over
Temperature
0
Frequency (GHz)
Figure 6. Narrowband Input Return Loss vs Frequency Over
Temperature
–27.0
Input Return Loss (dB)
Reverse Isolation (dB)
–5
–10
–15
–20
202390-007
–27.5
–28.0
–28.5
–29.0
–29.5
–30.0
2.2
2.3
2.4
2.5
2.6
2.7
2.8
202390-008
–25
–30
0
2
4
6
8
10
12
14
16
18
–40 °C
+25 °C
+85 °C
+105 °C
–40 °C
+25 °C
+85 °C
+105 °C
20
22
24
2.9
3.0
Frequency (GHz)
Figure 7. Broadband Input Return Loss vs Frequency Over
Temperature
Frequency (GHz)
Figure 8. Narrowband Reverse Isolation vs Frequency Over
Temperature
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4
May 4, 2017 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202390G
202390-006
–40
202390-004
DATA SHEET • SKY67151-396LF: ULTRA LOW-NOISE AMPLIFIER
–20
–10
Output Return Loss (dB)
Reverse Isolation (dB)
–30
–40
–50
–60
–70
–80
–90
0
2
4
6
8
10
12
14
16
18
20
–40 °C
+25 °C
+85 °C
+105 °C
–12
–14
–16
–18
–20
202390-010
–22
–24
–26
2.2
2.3
2.4
2.5
2.6
2.7
2.8
202390-009
–40 °C
+25 °C
+85 °C
+105 °C
22
24
2.9
3.0
Frequency (GHz)
Figure 9. Broadband Reverse Isolation vs Frequency Over
Temperature
Frequency (GHz)
Figure 10. Narrowband Output Return Loss vs Frequency Over
Temperature
0
6
Output Return Loss (dB)
Stability
Factor,
μ1
(dB)
–5
–10
–15
–20
–25
202390-011
5
4
3
2
1
0
0
2
4
6
8
10
12
14
16
18
20
–40 °C
+25 °C
+85 °C
+105 °C
0
2
4
6
8
10
12
14
16
18
20
22
24
22
24
Frequency (GHz)
Figure 11. Broadband Output Return Loss vs Frequency Over
Temperature
Frequency (GHz)
Figure 12. Stability Factor (μ1) vs Frequency Over Temperature
6
0.8
–40 °C
+25 °C
+85 °C
+105 °C
Stability
Factor,
μ2
(dB)
5
4
3
2
0.7
Noise Figure (dB)
0.6
0.5
0.4
0.3
202390-014
1
0
0
2
4
6
8
10
12
14
16
18
20
22
202390-013
0.2
0.1
0
30
40
50
60
70
80
849 MHz
1850 MHz
2500 MHz
3600 MHz
24
90
100
Frequency (GHz)
Figure 13. Stability Factor (μ2) vs Frequency Over Temperature
Current
(mA)
Figure 14. Evaluation Board NF vs Quiescent Current Over
Frequency Using Band-Specific BOM
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202390G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 4, 2017
5
202390-012
–40 °C
+25 °C
+85 °C
+105 °C
stm32/stm8
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