RF2370 3V LOW NOISE AMPLIFIER Features

RF2370 3V LOW NOISE AMPLIFIER Features
RF2370
3V LOW NOISE AMPLIFIER
Package Style: SOT 6-Lead
Features






Low Noise and High Intercept
Point
Adjustable Bias Current
Power Down Control
Low Insertion Loss Bypass
Feature
1.8V to 5V Operation (See
Note: Page 2)
1.5GHz to 3.8GHz Operation
Logic
Control
BIAS 1
6 GAIN SELECT
GND1 2
5 GND2
RF IN 3
4 RF OUT
Applications





WiFi LNA with Bypass Feature
CDMA PCS LNA with Bypass
Feature
MMDS LNA with Bypass Feature
General Purpose Amplification
Commercial and Consumer
Systems
Functional Block Diagram
Product Description
The RF2370 is a switchable low noise amplifier with a very high dynamic
range designed for digital cellular and WiFi applications. The device functions as an outstanding front end low noise amplifier. The bias current
may be set externally. The IC is featured in a standard SOT 6-lead plastic
package.
Ordering Information
RF2370
RF2370SR
RF2370TR7
RF2370PCK-410
GaAs HBT
GaAs MESFET
InGaP HBT
Standard 25 piece bag
Standard 100 piece reel
Standard 2500 piece reel
Fully assembled evaluation board tuned for 1900 to 4000
MHz and 5 loose sample pieces
Optimum Technology Matching® Applied
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trademark 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.
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RF2370
Absolute Maximum Ratings
Parameter
Rating
Unit
Supply Voltage
-0.5 to +6.0
VDC
Input RF Level
+5 (see note)
dBm
32
mA
Operating Ambient Temperature
-40 to +85
°C
Storage Temperature
-40 to +150
°C
Current Drain, ICC
NOTE: Exceeding any one or a combination of the above maximum rating limits may cause permanent damage. Input RF transients to +15dBm will not
harm the device. For sustained operation at inputs >+5dBm, a small dropping
resistor is recommended in series with the VCC in order to limit the current due
to self-biasing to <32mA.
Parameter
Min.
Specification
Typ.
Max.
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 performance or functional operation of the device under Absolute Maximum Rating conditions is not implied.
RoHS status based on EUDirective2002/95/EC (at time of this document revision).
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 application circuitry and specifications at any time without prior notice.
Unit
Operating Range
Frequency Range
Condition
TAMB =+25°C, VCC =3.0V
900
4000
MHz
2300
2700
MHz
WiBRO/WiFi/WiMAX Low
Noise Amplifier
Frequency
HIGH GAIN MODE
Gain
Gain Select<0.8V, VBIAS =3V, T=+25°C
12.0
14.0
Noise Figure
1.3
Input IP3
+8
Output VSWR
1.7:1
Current Drain
7
dB
1.5
dB
dBm
mA
Current Drain=ICC +IREF
dB
Note: Bypass mode insertion loss will degrade
gradually as VCC goes below 2.7V.
BYPASS MODE
Gain
Input IP3
IIP3 will improve if ICC is raised above 7mA.
2:1
Gain Select>1.8V, VBIAS =0V
-4.0
-3.0
+18.0
+20.0
-2.0
dBm
Output VSWR
1.6:1
Current Drain
2.9
3.0
mA
3500
3800
MHz
Current Drain=ICC +IREF
WiMAX Low Noise Amplifier
Frequency
3100
Gain
11
dB
Noise Figure
1.6
dB
Input IP3
+14
dBm
BYPASS MODE (Low Gain)
Gain Select>1.8V, VBIAS =0V
Gain
Input IP3
Gain Select<0.8V, VBIAS =3V
-4
dBm
+18
dBm
GPS Low Noise Amplifier
Frequency
1500
1575
1600
MHz
Gain
17
dB
Noise Figure
1.2
dB
Input IP3
+6
dBm
2 of 11
Gain Select<0.8V, VBIAS =3V
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS110616
RF2370
Parameter
Min.
Specification
Typ.
Max.
Unit
BYPASS MODE (Low Gain)
Gain
Input IP3
Condition
Gain Select>1.8V, VBIAS =0V
-4
-3
dBm
+20
dBm
Power Supply
Voltage (VCC)
3
VSELECT Low
V
0.8
VSELECT High
1.8
Power Down
0
10
V
High Gain mode.
Select<0.8V, VBIAS =3V
V
Low Gain mode.
Select>1.8V, VBIAS =0V
A
Gain Select<0.8V, VBIAS =0V, VCC =3.0V
Bias note: Due to the presence of ESD protection circuitry on the RF2370, the maximum allowable collector bias voltage (pin 4) is 4.0V. Higher
supply voltages such as 5V are permissible if a series resistor is used to drop VCC to <4.0V for a given ICC.
Bias note 2: In bypass mode, VREF is essentially a “don’t care” condition. Pulling VREF low when in bypass mode does conserve the small 1mA
to 2mA supplied by VREF.
DS110616
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support, contact RFMD at (+1) 336-678-5570 or [email protected]
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RF2370
Pin
1
Function
BIAS
2
GND1
3
RF IN
Description
Interface Schematic
For low noise amplifier applications, this pin is used to control the bias current. An external resistor can be used to set the bias current for any VBIAS
voltage.
V B IA S
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
RF input pin. This part is designed such that 50 is the optimal source
impedance for best noise figure. Best noise figure is achieved with only a
series capacitor on the input.
To Bias
Circuit
RF OUT
RF IN
4
RF OUT
5
GND2
6
GAIN SELECT
4 of 11
Amplifier output pin. This pin is an open-collector output. It must be biased
to VCC through a choke or matching inductor. This pin is matched to 50
with a shunt L, series L topology enhances to stability of the device by
reducing the high frequency gain above 6GHz.
See GND1.
This pin selects high gain and bypass modes.
Gain Select<0.8V, high gain.
Gain Select>1.8V, low gain.
A series resistor of 100 is required on this pin to enhance stability.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS110616
RF2370
Package Drawing
1.80
1.40
TEXT*
1.90
0.10
MAX.
0.50
0.35
3.10
2.70
0.90
0.70
3.00
2.60
1.30
1.00
Shaded lead is pin 1.
Dimensions in mm.
9°
1°
0.25
0.10
*When Pin 1 is in upper left,
text reads downward
(as shown).
0.37 MIN.
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support, contact RFMD at (+1) 336-678-5570 or [email protected]
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RF2370
Evaluation Board Schematic
WiBRO/WiFi/WiMAX Schematic (2.3GHz to 2.7GHz)
VREF
Logic
Control
1
C1
DNI
R1
1.8 k
2
R2
100 
6
Select
5
C2
100 pF
J1
RF IN
C3
DNI
L2
1.2 nH
3
P1-1
P1-3
P1-4
C7
2.0 pF
4
P1
1
C4
DNI
GND
3
SELECT
R3
0
VCC
VREF
2
L1
3.3 nH
J2
RF OUT
C5
100 pF
C6
10 nF
VCC
4
HDR_1X4
GPS Schematic
(1.5GHz to 1.6GHz)
VREF
Logic
Control
1
C1
DNI
J1
RF IN
R1
1.8 k
5
3
4
Select
22 nF
P1-3
P1-4
C4
DNI
P1
1
VREF
2
GND
3
SELECT
C3
DNI
6
2
P1-1
6 of 11
R2
100 
3.9 nH
1 pF
3.3 nH
R3
0
J2
RF OUT
VCC
C5
100 pF
C6
10 nF
VCC
4
HDR_1X4
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS110616
RF2370
Evaluation Board Layout
Board Size 0.835” x 0.900”
Board Thickness 0.032”, Board Material FR-4
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support, contact RFMD at (+1) 336-678-5570 or [email protected]
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RF2370
WiBRO/WiFi/WiMAX DATA
Gain at WiFi Band in Bypass Mode
VCC=3.0V and VREF=3.0V Over Temp
20.0
0.0
18.0
-1.0
16.0
-2.0
Gain (dB)
Gain (dB)
Gain at WiFi Band in High Gain Mode
VCC=3.0V and VREF=3.0V Over Temp
14.0
12.0
-3.0
-4.0
Gain @ -40°C
Gain @ 25°C
Gain @ 85°C
10.0
Gain @ -40°C
Gain @ 25°C
Gain @ 85°C
-5.0
8.0
2300.0 2350.0 2400.0 2450.0 2500.0 2550.0 2600.0 2650.0 2700.0
-6.0
2300.0 2350.0 2400.0 2450.0 2500.0 2550.0 2600.0 2650.0 2700.0
Frequency (MHz)
Frequency (MHz)
Noise Figure at WiFi Band in High Gain Mode
VCC=3.0V and VREF=3.0V Over Temp
IIP3 at WiFi Band in High Gain Mode
VCC=3.0V and VREF=3.0V Over Temp
3.0
20.0
18.0
2.5
16.0
14.0
IIP3 (dBm)
NF (dB)
2.0
1.5
1.0
12.0
10.0
8.0
6.0
4.0
NF @ -40°C
NF @ 25°C
NF @ 85°C
0.5
0.0
2300.0 2350.0 2400.0 2450.0 2500.0 2550.0 2600.0 2650.0 2700.0
0.0
2300.0 2350.0 2400.0 2450.0 2500.0 2550.0 2600.0 2650.0 2700.0
Frequency (MHz)
Frequency (MHz)
IIP3 at WiFi Band in Bypass Mode
VCC=3.0V and VREF=3.0V Over Temp
ICC + IREF at WiFi Band in High Gain Mode
VCC=3.0V and VREF=3.0V Over Temp
30.0
9.0
28.0
8.5
26.0
8.0
ICC + IREF (mA)
24.0
IIP3 (dBm)
IIP3 @ -40°C
IIP3 @ 25°C
IIP3 @ 85°C
2.0
22.0
20.0
18.0
7.0
6.5
6.0
16.0
IIP3 @ -40°C
IIP3 @ 25°C
IIP3 @ 85°C
14.0
12.0
2300.0 2350.0 2400.0 2450.0 2500.0 2550.0 2600.0 2650.0 2700.0
Frequency (MHz)
8 of 11
7.5
ICC + IREF @ -40°C
ICC + IREF @ 25°C
ICC + IREF @ 85°C
5.5
5.0
2300.0 2350.0 2400.0 2450.0 2500.0 2550.0 2600.0 2650.0 2700.0
Frequency (MHz)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS110616
RF2370
WiMAX Data
Gain @ WiMAX Band in High Gain Mode
VCC=3.0V and VREF=3.0V Over Temp
18.0
0.0
Gain @ WiMAX Band in Bypass Mode
VCC=3.0V and VREF = 3.0V Over Temp
-1.0
16.0
-2.0
Gain (dB)
Gain (dB)
14.0
12.0
10.0
-3.0
-4.0
-5.0
-6.0
Gain @ -40°C
Gain @ 25°C
Gain @ 85°C
8.0
6.0
-8.0
3100.0 3200.0 3300.0 3400.0 3500.0 3600.0 3700.0 3800.0
3100.0 3200.0 3300.0 3400.0 3500.0 3600.0 3700.0 3800.0
Frequency (MHz)
Frequency (MHz)
4.0
Noise Figure @ WiMAX Band in High Gain Mode
VCC=3.0V and VREF=3.0V Over Temp
26.0
22.0
3.0
20.0
IIP3 (dBm)
2.5
NF (dB)
IIP3 @ WiMAX Band in High Gain Mode
VCC=3.0V and VREF=3.0V Over Temp
24.0
3.5
2.0
1.5
18.0
16.0
14.0
12.0
1.0
10.0
NF @ -40°C
NF @ 25°C
NF @ 85°C
0.5
IIP3 @ -40°C
IIP3 @ 25°C
IIP3 @ 85°C
8.0
0.0
6.0
3100.0 3200.0 3300.0 3400.0 3500.0 3600.0 3700.0 3800.0
3100.0 3200.0 3300.0 3400.0 3500.0 3600.0 3700.0 3800.0
Frequency (MHz)
Frequency (MHz)
30.0
IIP3 @ WiMAX Band in Bypass Mode
VCC=3.0V and VREF=3.0V Over Temp
ICC + IREF @ WiMAX Band in High Gain Mode
9.0
28.0
VCC=3.0V and VREF=3.0V Over Temp
8.5
26.0
8.0
ICC + IREF (mA)
24.0
IIP3 (dBm)
Gain @ -40°C
Gain @ 25°C
Gain @ 85°C
-7.0
22.0
20.0
18.0
7.5
7.0
6.5
6.0
16.0
IIP3 @ -40°C
IIP3 @ 25°C
IIP3 @ 85°C
14.0
12.0
ICC + IREF @ -40°C
ICC + IREF @ 25°C
ICC + IREF @ 85°C
5.5
5.0
3100.0 3200.0 3300.0 3400.0 3500.0 3600.0 3700.0 3800.0
3100.0 3200.0 3300.0 3400.0 3500.0 3600.0 3700.0 3800.0
Frequency (MHz)
Frequency (MHz)
DS110616
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support, contact RFMD at (+1) 336-678-5570 or [email protected]
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RF2370
GPS Data
Gain @ GPS Band in High Gain Mode
VCC=3.0V and VREF=3.0V Over Temp
24.0
0.0
22.0
-1.0
-2.0
Gain (dB)
Gain (dB)
20.0
18.0
16.0
-3.0
-4.0
14.0
Gain @ -40°C
Gain @ 25°C
Gain @ 85°C
12.0
Gain @ -40°C
Gain @ 25°C
Gain @ 85°C
-5.0
10.0
-6.0
1500.0
3.0
Gain @ GPS Band in Bypass Mode
VCC=3.0V and VREF=3.0V Over Temp
1525.0
1550.0
1575.0
1500.0
1600.0
1525.0
1550.0
1575.0
Frequency (MHz)
Frequency (MHz)
Noise Figure @ GPS Band in High Gain Mode
VCC=3.0V and VREF=3.0V Over Temp
IIP3 @ GPS Band in High Gain Mode
VCC=3.0V and VREF=3.0V Over Temp
16.0
1600.0
14.0
2.5
12.0
IIP3 (dBm)
NF (dB)
2.0
1.5
1.0
10.0
8.0
6.0
4.0
NF @ -40°C
NF @ 25°C
NF @ 85°C
0.5
0.0
1500.0
28.0
IIP3 @ -40°C
IIP3 @ 25°C
IIP3 @ 85°C
2.0
0.0
1525.0
1550.0
1575.0
1600.0
1500.0
1525.0
1550.0
1575.0
Frequency (MHz)
Frequency (MHz)
IIP3 @ GPS Band in Bypass Mode
VCC=3.0V and VREF=3.0V Over Temp
ICC + IREF @ GPS Band in High Gain Mode
10.0
26.0
1600.0
VCC=3.0V and VREF=3.0V Over Temp
9.0
ICC + IREF (mA)
IIP3 (dBm)
24.0
22.0
20.0
18.0
8.0
7.0
6.0
16.0
IIP3 @ -40°C
IIP3 @ 25°C
IIP3 @ 85°C
14.0
12.0
1500.0
4.0
1525.0
1550.0
Frequency (MHz)
10 of 11
ICC + IREF @ -40°C
ICC + IREF @ 25°C
ICC + IREF @ 85°C
5.0
1575.0
1600.0
1500.0
1525.0
1550.0
1575.0
1600.0
Frequency (MHz)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS110616
RF2370
RoHS* Banned Material Content
RoHS Compliant:
Yes
Package total weight in grams (g):
0.013
Compliance Date Code:
N/A
Bill of Materials Revision:
-
Pb Free Category:
B i l l o f Ma te r i a l s
e3
Pa r ts Pe r Mi l l i o n (PPM )
Pb
Cd
Hg
Cr V I
PB B
PB DE
Di e
0
0
0
0
0
0
M o l di ng Co mp o und
0
0
0
0
0
0
Le a d F r a me
0
0
0
0
0
0
Di e A tta ch Ep o x y
0
0
0
0
0
0
Wi r e
0
0
0
0
0
0
So l d e r Pl a ti ng
0
0
0
0
0
0
Thi s R o HS ba nne d ma te r i a l co nte nt d e cl a r a ti o n wa s pr e p a r e d so l e l y o n i nfo r ma ti o n, i ncl udi ng a na l y ti ca l
da ta , pr o vi d e d to R F M D b y i ts supp l i e r s, a nd a p pl i e s to the B i l l o f M a te r i a l s (B OM ) r e vi si o n no te d
* DIRECTIVE 2002/95/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 January 2003 on the restriction of the
use of certain hazardous substances in electrical and electronic equipment
DS110616
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
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