WS7931D
WS7931D
CMOS Medium Band LTE LNA
http//:www.sh-willsemi.com
Descriptions
The WS7931D is a low noise amplifier (LNA) for LTE
receiver applications, available in a small 6-pin DFN
package. The WS7931D requires only one external
inductor for input matching.
DFN1107-6L (Bottom view)
The WS7931D is designed to achieve low power
dissipation and good performance. It is designed and
optimized for the LTE medium band: 1805MHz to
2200MHz.
GND
1
6
EN
VCC
2
5
RFIN
RFOUT
3
4
GNDRF
Features
Operating frequency: 1805 MHz to 2200 MHz
Noise figure = 1.0 dB
Gain = 12.5 dB
Input 1 dB compression point = -3.5 dBm
In-band input IP3 = +5.0 dBm
Supply voltage: 1.8 V to 3.1 V
Integrated supply decoupling capacitor
Supply current: 6.4 mA
Power-down mode leakage current < 1μA
One external matching inductor required
C
= Device code
ESD protection: HBM > 2.0kV for all pins
*
= Month code(A~Z)
Integrated output matching
Package: 6-pin DFN, 1.1 x 0.7 x 0.55 mm3
Process: CMOS
Pin configuration (Top view)
C
*
Marking (Top view)
Order information
Device
Applications
Cell phones
Tablets
Other RF front-end modules
Will Semiconductor Ltd.
WS7931D-6/TR
1
Package
Shipping
DFN1107-6L
10000/Reel&Tape
Feb, 2017 - Rev. 1.6
WS7931D
Pinning Information
Pin
Description
1
GND
2
VCC
3
RFOUT
4
GNDRF
5
RFIN
6
EN
Transparent top view
GND
1
6
EN
VCC
2
5
RFIN
RFOUT
3
4
GNDRF
Symbol view
Application Information
Symbol
Description
Footprint
U1
WS7931D
1.1x0.7x0.55
C1
Capacitor
C2
L1
mm3
Value
Supplier
Comment
N/A
Will-Semi
DUT
0402
1 nF
Various
DC blocking
Capacitor
0402
1 nF
Various
Supply decoupling
Inductor
0402
8.2 nH
Murata LQW15
Input matching
Will Semiconductor Ltd.
2
Feb, 2017 - Rev. 1.6
WS7931D
Quick Reference Data
Freq = 2000 MHz; VCC = 2.8 V; VEN > 2VCC/3; Temp = 25C; input matched to 50 Ω with an 8.2 nH inductor.
The condition is applied unless otherwise specified.
Symbol
Parameter
VCC
Supply voltage
ICC
Supply current
Gp
Power gain
NF
Noise figure
Condition
Min
Typ
Max
Unit
1.8
2.8
3.1
V
6.4
mA
f = 2000 MHz
12.5
dB
f = 2000 MHz
1.0
dB
IP1dB
Input power at 1 dB gain compression
-3.5
dBm
IIP3
Input third-order intercept point
+5.0
dBm
Recommended Operating Conditions
Symbol
VCC
Temp
VEN
Parameter
Condition
Min
Supply voltage
1.8
Ambient temperature
-40
Input voltage on pin 6 (EN)
OFF state
ON state
2VCC/3
Typ
Max
Unit
3.1
V
+25
+85
C
0
VCC/3
V
VCC
V
Absolute Maximum Ratings
Maximum ratings are absolute ratings, exceeding only one of these values may cause irreversible damage to
the integrated circuit.
Symbol
Parameter
Condition
Min
Max
Unit
VCC
Supply voltage
-0.3
3.1
V
VEN
Input voltage on pin EN
-0.3
3.1
V
Input voltage on pin RFIN
-0.3
3.1
V
Input voltage on pin RFOUT
-0.3
3.1
V
0
dBm
+150
°C
150
°C
±2000
V
VRFIN
VRFOUT
Pin
RF input power
TSTG
Storage temperature
TJ
Junction temperature
VESD
ESD capability all pins
Will Semiconductor Ltd.
-65
Human Body Model (HBM)
3
Feb, 2017 - Rev. 1.6
WS7931D
Characteristics
1805 MHz ≤ f ≤ 2200 MHz; VCC = 2.8 V; VEN > 2VCC/3; Temp = 25C; input matched to 50 Ω with an 8.2 nH
inductor; The condition is applied unless otherwise specified.
Symbol
ICC
Parameter
Supply current
Conditions
Min
On state
Typ
6.4
Off state
Gp[4]
RLin
RLout
ISL
NF
IP1dB
IIP3
Power gain
Max
Unit
mA
1
μA
f = 1850 MHz
12.5
dB
f = 2150 MHz
12.1
dB
f = 1850 MHz
9.0
dB
f = 2150 MHz
8.0
dB
f = 1850 MHz
11.0
dB
f = 2150 MHz
24.0
dB
f = 1850 MHz
34.5
dB
f = 2150 MHz
34.0
dB
f = 1850 MHz
0.95
dB
f = 2150 MHz
1.0
dB
Input power at 1 dB gain
f = 1850 MHz
-3.5
dBm
compression
f = 2150 MHz
-2.5
dBm
Input third-order intercept
f = 1850 MHz[1]
+4.0
dBm
point
f = 2150 MHz[2]
+5.0
dBm
Input return loss
Output return loss
Reverse isolation
Noise figure
K
Rollett stability factor[3]
ton
Turn-on time
5
μs
toff
Turn-off time
5
μs
1
[1] f1 = 1840 MHz, f2 = 1850 MHz, Pin = -25 dBm
[2] f1= 2140 MHz, f2 = 2150 MHz, Pin = -25 dBm
[3] 10M~20GHz
Will Semiconductor Ltd.
4
Feb, 2017 - Rev. 1.6
WS7931D
Package Outline Dimensions
DFN1107-6L
Symbol
Dimensions In Millimeters
Min.
Typ.
Max.
A
0.500
0.550
0.600
A1
0.000
0.025
0.050
A3
0.152REF
b
0.150
0.200
0.250
D
0.600
0.700
0.800
E
1.000
1.100
1.200
e
0.400BSC
k
0.200REF
L
0.124
0.200
L1
Will Semiconductor Ltd.
0.276
0.050REF
5
Feb, 2017 - Rev. 1.6
WS7931D
Tape & Reel Dimensions
Will Semiconductor Ltd.
6
Feb, 2017 - Rev. 1.6
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