8-89
8
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Preliminary
Product Description
Ordering Information
Typical Applications
Features
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Optimum Technology Matching Applied
Si BJT
GaAs MESFET
GaAs HBT
Si Bi-CMOS
SiGe
1
LNA VCC19
2
GND
5
LNA IN8
6
4
3
LNA IN19
7
GAIN SEL
14
T
X
L019
13
MX
R
I
N
8
12
M
X
R
V
CC1
9
11
GN
D
10
GN
D
9
LN
A
O
U
T
L
N
A
V
CC8
8
15
VCC TX19
16
VCC DOUBLER
GND
17
IF A
18
20
GND
19
IF B
21
LO IN8
VC
C
T
X8
22
TX
L
O
8
23
MX
R
I
N
1
9
24
25
M
X
R
V
CC8
26
GN
D
27
28
LN
A
O
U
T
19
GND
GND
GN
D
X2
RF2475
DUAL-BAND LOW NOISE AMPLIFIER/MIXER
WITH FREQUENCY DOUBLER
TDMA Handsets
The RF2475 includes two downconverting mixers and
associated LNAs. It is designed for IS136 handset appli-
cations in the cellular 800MHz and PCS 1900MHz
bands. Each LNA has a gain bypass mode, which is con-
trolled by the gain select pin. The device internally ties the
two mixer outputs together, providing interface to a single
IF SAW filter. A frequency doubler is provided to supply
the LO signal to the PCS mixer and feeds the PCS trans-
mit LO output buffer. A cellular LO output buffer is also
included. The device is fabricated using Gallium Arsenide
HBT technology and is packaged in a 28-pin, 5mmx5mm
leadless package.
Complete Dual-Band Receiver Front-End
Stepped LNA Gain Control
Integrated LO Frequency Doubler
Integrated LO Output Buffers
Meets IS136 Specifications
RF2475
Dual-Band Low Noise Amplifier/Mixer with Fre-
quency Doubler
RF2475 PCBA
Fully Assembled Evaluation Board
8
Rev A2 010918
12
MAX
1.00
0.85
0.65
0.30
4 PLCS
0.50
0.23
0.13
4 PLCS
5.00
sq.
2.50
Typ.
0.30
0.18
2
0.60
0.24
Typ
0.75
0.50
0.05
0.01
0.80
0.65
NOTES:
Shaded Pin is Lead 1.
1
Dimension applies to plated terminal: to be measured between 0.02 mm
and 0.25 mm from terminal end.
2
Pin 1 identifier must exist on top surface of package by identification
mark or feature on the package body. Exact shape and size is optional.
3
Package Warpage: 0.05 mm max.
4
Die Thickness Allowable: 0.305 mm max.
5
2.85
2.55
sq.
Package Style: LCC, 28-Pin, 5x5
Preliminary
8-90
RF2475
Rev A2 010918
8
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NOTES:
1 LNA input IP3 response to out of band frequencies (824 Hz to 849 MHz) should be -6dBm in high gain mode.
2 LO IN to LNA IN isolation specification with the 900 MHz TX LO buffer on.
3 Image rejection measured with f
RF
=869MHz, P
RF
= -105 dBm, f
LO
= 1004MHz; P
IMAGE
= -85 dBm, f
IMAGE
= 1139MHz
Absolute Maximum Ratings
Parameter
Rating
Unit
Supply Voltage
-0.5 to +5.0
V
DC
Input LO and RF Levels
+6
dBm
Operating Ambient Temperature
-30 to +85
C
Storage Temperature
-40 to +150
C
Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
Cellular Receive Path
Operational Limits
RF Frequency
869
894
MHz
LO Frequency
950
1045
MHz
IF Frequency
100
150
MHz
LNA Input Level
+10
dBm
LO Input Level
-10
-7
-4
dBm
Supply Voltage
2.7
2.8
3.3
V
Cellular Cascaded
Electrical Specifications
T
AMB
= 25C, V
CC
=2.8V, f
RF
= 881MHz,
f
LO
= 1016MHz, f
IF
=135MHz,
LO Level= -7dBm, Image Filter I.L.= 3dB
Gain
23
25
27
dB
High Gain, Gain Select= High
8
dB
Low Gain, Gain Select=Low
Gain Step
14
17
dB
Gain Variations versus Tempera-
ture
+1.5
dB
-30C to +85C
Noise Figure
2.2
2.6
dB
High Gain, Gain Select= High
15
20
dB
Low Gain, Gain Select=Low
Input Third Order Intercept
1
-10
-9
dBm
High Gain, Gain Select= High
-2.0
-0.5
dBm
Low Gain, Gain Select=Low
Return Loss
10
dB
LNA Input - External Match
10
dB
LNA Output - External Match
10
dB
Mixer RF Input - External Match
10
dB
Mixer LO Input - External Match
Isolation
60
dB
LO IN to LNA IN, Gain Select= High
2
60
dB
LO IN to LNA IN, Gain Select= Low
60
dB
Image Rejection
3
50
dB
LO IN to IF OUT
50
dB
Mixer RF IN to IF OUT
35
dB
Mixer RF IN to TX LO OUT
IF Output Impedance
>10
k
Mixer "ON"
Supply Current
20
25
mA
Not including TX LO buffer
TX LO Buffer
LO Output Buffer
-7
-4
dBm
LO Input Level= -7dBm
Harmonic Output
-22
-25
dBc
LO Input Level= -7dBm
Isolation - LO OUT to LO IN
25
dB
TX LO Buffer ON
Supply Current
7.5
9.0
mA
Logic
Input Low
0.5
V
V
CC
= 2.7V to 2.9V
Input High
2.0
V
V
CC
= 2.7V to 2.9V
Input Current
TBD
A
Input Impedance
TBD
k
Caution! ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).
Preliminary
8-91
RF2475
Rev A2 010918
8
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Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
Cellular Receive Path,
Cont'd
Cellular Block Level
Electrical Specifications
Low Noise Amplifier
Frequency Range
869
894
MHz
Gain
20
dB
High Gain, Gain Select= High
3
6
dB
Low Gain, Gain Select= Low
Gain Step
14
17
dB
Gain Variations versus Tempera-
ture
+1.0
dB
-30C to +85C
Noise Figure
1.4
1.6
dB
High Gain, Gain Select= High
dB
Low Gain, Gain Select= Low
Input Third Order Intercept
-3
0
dBm
High Gain, Gain Select= High
-3
0
dBm
Low Gain, Gain Select= Low
Terminating Impedance
50
External Match
Supply Current
6
8
mA
High Gain, Gain Select= High
6
8
mA
Low Gain, Gain Select= Low
Logic Input Low
0.5
V
V
CC
= 2.7V to 2.9V
Logic Input High
2.0
V
V
CC
= 2.7V to 2.9V
Mixer and LO Buffer
Frequency Range, Mixer Input
869
894
MHz
Frequency Range, IF Output
85
150
MHz
Frequency Range, LO Input
950
1045
MHz
Conversion Gain
7
8
9
dB
Noise Figure (SSB)
11
12
dB
Input Third Order Intercept
7
8
dBm
Terminating Impedance,
Mixer In, LO In, LO Out
50
External Match
Terminating Impedance,
Mixer In, LO In, LO Out
Return Loss
10
External Match
Terminating Impedance,
IF Out
>10
k
Mixer "ON"
Mixer Supply Current
14
19
mA
LO Input Level
-10
-7
-4
dBm
LO Buffer Supply Current
7.5
9.0
mA
LO Output Level
-7
-4
dBm
PCS Receive Path
Operational Limits
RF Frequency
1930
1990
MHz
Frequency Range, LO Input to
Doubler
1015
1039
1063
MHz
LO input to device at LO IN8.
Frequency Range, Doubler Out-
put
2030
2078
2126
MHz
Internal output of LO doubler driving the
mixer and TX LO buffer.
IF Frequency
100
150
MHz
LNA Input Level
+10
dBm
LO Input Level
-10
-7
-4
dBm
Supply Voltage
2.7
2.8
3.3
V
Preliminary
8-92
RF2475
Rev A2 010918
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NOTES:
4 LO IN to LNA IN isolation specification with the 1900MHz TX LO buffer on.
5 Image rejection measured with f
RF
=1930MHz, P
RF
=-105dBm, f
LO
=2065MHz; P
IMAGE
=-85dBm, f
IMAGE
=2220MHz.
Image interferer should be suppressed 11dB below desired signal at the IF output.
6 2LO +2RF Half IF Spur. (1/2 IF spur relative to P
1/2RF
) f
RF
= 1930MHz, P
RF
= -105dBm, f
LO
=2065MHz;
F
1/2IF
= 1997.5 MHz, P
1/2IF
= -48dBm.
1/2 IF interferer should be suppressed 11dB below desired signal at the IF output.
Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
PCS Receive Path, Cont'd
PCS Cascaded
Electrical Specifications
T
AMB
= 25C, V
CC
=2.8V, f
RF
= 1960MHz,
f
LO
= 2095MHz, f
IF
=135MHz,
LO Level= -7dBm, Image Filter I.L.= 3dB
Gain
24
26
28
dB
High Gain, Gain Select= High
6
dB
Low Gain, Gain Select=Low
Gain Step
17
20
dB
Gain Variations versus Tempera-
ture
+1.5
dB
-30C to +85C
Noise Figure
2.8
3.3
dB
High Gain, Gain Select= High
15
20
dB
Low Gain, Gain Select=Low
Input Third Order Intercept
-12
-10
dBm
High Gain, Gain Select= High
-2
-0.5
dBm
Low Gain, Gain Select=Low
Return Loss
10
dB
LNA Input - External Match
10
dB
LNA Output - External Match
10
dB
Mixer RF Input - External Match
10
dB
Mixer LO Input - External Match
Isolation
40
dB
LO IN to LNA IN, Gain Select= High
4
40
dB
LO IN to LNA IN, Gain Select= Low
35
37
dB
Image Rejection
5
>53
dB
LO IN to IF OUT
>40
dB
Mixer RF IN to IF OUT
35
dB
Mixer RF IN to TX LO OUT
Half IF Spur
6
-68
dBc
IF Output Impedance
>10
k
Mixer "ON"
Supply Current
28
33
mA
Including the LO doubler, but not the TX LO
buffer
TX LO Buffer
LO Doubler Output Buffer
-5
-3
dBm
LO Input Level= -7dBm
Harmonic Output
-22
-25
dBc
LO Input Level= -7dBm
Doubler Harmonic Output
-45
-50
dBc
Fundamental Suppression
Isolation - LO OUT to LO IN
35
dB
TX LO Buffer ON
Supply Current
7.5
9.0
mA
Including the LO doubler and the TX LO
buffer
Logic
Input Low
0.5
V
V
CC
= 2.7V to 2.9V
Input High
2.0
V
V
CC
= 2.7V to 2.9V
Input Current
TBD
A
Input Impedance
TBD
k
Preliminary
8-93
RF2475
Rev A2 010918
8
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Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
PCS Receive Path, Cont'd
PCS Block Level
Electrical Specifications
Low Noise Amplifier
Frequency Range
1930
1990
MHz
Gain
22
dB
High Gain, Gain Select= High
2
dB
Low Gain, Gain Select= Low
Gain Step
16
20
dB
Gain Variations versus Tempera-
ture
+1.0
dB
-30C to +85C
Noise Figure
1.7
1.9
dB
High Gain, Gain Select= High
dB
Low Gain, Gain Select= Low
Input Third Order Intercept
-7
-6
dBm
High Gain, Gain Select= High
-2
0
dBm
Low Gain, Gain Select= Low
Terminating Impedance
50
Supply Current
8
9
mA
High Gain, Gain Select= High
8
9
mA
Low Gain, Gain Select= Low
Logic Input Low
0.5
V
V
CC
= 2.7V to 2.9V
Logic Input High
2.0
V
V
CC
= 2.7V to 2.9V
Mixer and LO Buffer
Frequency Range, Mixer Input
1930
1990
MHz
Frequency Range, IF Output
100
150
MHz
Frequency Range, LO Input to
Doubler
1015
1039
1063
MHz
LO input to device at LO IN8.
Frequency Range, Doubler Out-
put
2030
2078
2126
MHz
Internal output of LO doubler driving the
mixer and TX LO buffer.
Conversion Gain
7
8
9
dB
Noise Figure (SSB)
13
4
dB
Input Second Order Intercept
35
dBm
Input Third Order Intercept
7
8
dBm
Terminating Impedance,
Mixer In, LO In, LO Out
50
External Match
Terminating Impedance,
Mixer In, LO In, LO Out
Return Loss
10
External Match
Terminating Impedance,
IF Out
>10
k
Mixer "ON"
Mixer Supply Current
23
28
mA
Including the LO doubler, but not the TX LO
buffer
LO Input Level
-10
-7
-4
dBm
LO Buffer Supply Current
7.5
8.0
mA
Including the LO doubler and the TX LO
buffer
LO Output Level
-5
-2
dBm
Preliminary
8-94
RF2475
Rev A2 010918
8
F
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NOTE:
The LO doubler is enabled by either MXR VCC19 (PCS RX mode) or TX LO19 (PCS TX mode). VCC DOUBLER is the
DC current return path for the output of the doubler. This should be connected to the PLL VCC or a supply that is on in
both the TX and RX modes of the 1900 MHz band of operation. In the Cellular mode, the doubler is powered down to
save current, even when VCC DOUBLER is energized. Therefore, the VCC DOUBLER pin can be connected to a supply
that is on in all modes, while minimizing the current consumption of the device.
Pin
Function
Description
Interface Schematic
1
LNA VCC19
PCS LNA supply voltage. Local bypass capacitor required.
2
GND
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
3
LNA IN19
PCS LNA input. AC-coupled. Requires external 50
matching compo-
nents.
4
GND
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
5
LNA IN8
Cellular LNA input. AC-coupled. Requires external 50
matching com-
ponents.
6
GND
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
7
GAIN SEL
Gain select control input. Logic high=high gain, logic low= low gain.
8
LNA VCC8
Cellular LNA RF supply voltage. Local bypass capacitor required.
9
LNA OUT
Cellular LNA output. AC-coupled. Requires matching to 50
.
10
GND
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
11
GND
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
12
MXR VCC19
PCS mixer and RX LO doubler enable supply voltage. Local bypass
capacitor required.
13
MXR IN8
Cellular RF mixer input. AC-coupled. Requires matching to 50
.
14
TX LO19
PCS Transmit LO buffer output. Requires matching to 50
.
15
VCC TX19
PCS TX LO buffer and TX LO doubler enable supply voltage. Local
bypass capacitor required.
16
VCC
DOUBLER
Doubler output supply voltage for PCS RX and PCS TX modes. See
Note 1.
17
GND
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
18
IF B
Mixer IF B output. Open collector output, requires external matching
components and DC connection to VCC.
19
IF A
Mixer IF A output. Open collector output, requires external matching
components and DC connection to VCC.
20
GND
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
21
LO IN8
Mixer LO input. AC-coupled. Requires matching to 50
.
22
VCC TX8
Cellular TX LO buffer supply voltage. Local bypass capacitor required.
23
TX LO8
Cellular TX LO buffer output. AC-coupled. Requires matching to 50
.
24
MXR IN19
PCS RF mixer input. AC-coupled. Requires matching to 50
.
25
MXR VCC8
Cellular mixer supply voltage. Local bypass capacitor required.
26
GND
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
27
GND
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
28
LNA OUT19
PCS LNA output. AC-coupled. Requires matching to 50
.
Pkg
Base
GND
Ground connection. The backside of the package should be soldered to
a top side ground pad which is connected to the ground plane with mul-
tiple vias. The pad should have a short thermal path to the ground
plane.
Preliminary
8-95
RF2475
Rev A2 010918
8
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Truth Table of Pin-by-Pin Biasing
Power Control Modes
NOTES:
There are separate RX/TX LO doublers with a common output.
The DC return path for both the TX and RX doublers is via the PLL VCC which is on in all TX and RX modes.
This allows sharing of the LC load at the doubler output, which saves a significant amount of die area.
Pin #
1
28
8
9
12
14
15
16
18
19
22
23
25
Pin
Name
LNA
VCC19
LNA
OUT19
LNA
VCC8
LNA
OUT8
MXR
VCC19
TX
LO19
VCC
TX19
DOUBLER
VCC
IF B
IF A
VCC
TX8
TX
LO8
MXR
VCC8
Biased
by VCC
Supply
RX19
VCC
RX19
VCC
RX8
VCC
RX8
VCC
RX19
VCC
TX19
VCC
TX19
VCC
PLL
VCC
IF
VCC
IF
VCC
TX8
VCC
TX8
VCC
RX8
VCC
Mode
RX-800
L
L
H
H
L
L
L
H
H
H
L
L
H
RX-1900
H
H
L
L
H
L
L
H
H
H
L
L
L
TX-800
L
L
L
L
L
L
L
H
L
L
H
H
L
TX-1900
L
L
L
L
L
H
H
H
L
L
L
L
L
L =
Supply Off
H =
Supply On
Mode
Pin Name
Pin #
Controls the Following Circuit Functions
RX19
LNA VCC19
1
1900MHz LNA Bias
MXR VCC19
12
Mixer RF Amplifier
Mixer LO Driver
RX LO Doubler
Doubler VCC
16
DC Return for the LO Doubler
IF B
18
DC Return for Mixer
IF A
19
DC Return for Mixer
RX8
LNA VCC8
8
800MHz LNA Bias
MXR VCC8
25
Mixer RF Amplifier
Mixer LO Driver
IF B
18
DC Return for Mixer
IF A
19
DC Return for Mixer
TX8
VCC TX8
22
800MHz TX LO Buffer
TX19
VCC TX19
15
1900MHz TX LO Buffer
TX LO Doubler
Doubler VCC
16
DC Return for the LO Doubler
Preliminary
8-96
RF2475
Rev A2 010918
8
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Pin Out
1
LNA VCC19
2
GND
5
LNA IN8
6
4
3
LNA IN19
7
GAIN SEL
14
TX
L019
13
MXR
I
N
8
12
M
X
R
V
CC19
11
GN
D
10
GN
D
9
LNA
O
UT
LNA
V
CC8
8
15
VCC TX19
16
VCC DOUBLER
GND
17
IF A
18
20
GND
19
IF B
21
LO IN8
VC
C
T
X8
22
TX
LO8
23
MXR
I
N
1
9
24
25
M
X
R
V
CC8
26
GN
D
27
28
LNA
O
UT19
GND
GND
GN
D
Preliminary
8-97
RF2475
Rev A2 010918
8
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Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
1
2
5
6
4
3
7
14
13
12
11
10
9
8
15
16
17
18
20
19
21
22
23
24
25
26
27
28
X2
C23
10 pF
L1
8.2 nH
L14
10 nH
VCC LNA2
C21*
DNI
C1
1 nF
2
1
4
3
6
5
R3*
DNI
C2
3 pF
VCC MX1
FL2*
FAR-F6CE-
1G9600-L2XB
IN
OUT
GN
D
G
N
D
GN
D
G
N
D
R1
0
C4
0.5 pF
L2
18 nH
R2
0
J1
LNA2 OUT
50
strip
J2
MX2 IN
50
strip
R5
300
L3
7.5 nH
C5
3 pF
VCC LO1
C7
100 pF
C6
4 pF
J10
LO1 OUT
50
strip
L4
4.7 nH
C36
3 pF
J3
LO1 IN
50
strip
C8*
DNI
C11
8 pF
L6
56 nH
L5
56 nH
C9
3 pF
VCC IF
C10
1 nF
C24*
DNI
C22
1 nF
R6*
DNI
C12
10 pF
L7
150 nH
J4
IF OUT
50
strip
Part of Test Board
C13
3 pF
VCC DBLR
C14
100 pF
+
R7
510
L8
1.8 nH
C15
1.5 pF
VCC LO2
C16
1.5 pF
R4
0
J5
LO2 OUT
50
strip
C18
3 pF
VCC MX2
L11
12 nH
C20
100 pF
VCC LNA1
C19
1.2 pF
R11*
DNI
R10
0
J7
LNA1 OUT
50
strip
R9*
DNI
R8
0
FL1*
FAR-F5CE-
881M50-K210
2
1
4
3
6
5
IN
OUT
GN
D
G
N
D
GN
D
G
N
D
J6
MX1 IN
50
strip
C17
3 pF
L15
2.7 nH
L9
39 nH
GAIN SEL
TRL1
C38
33 nF
L12
3.9 nH
J8
LNA1 IN
50
strip
C37
33 nF
L13
56 nH
C38
4 pF
L12
3.9 nH
J9
LNA2 IN
50
strip
2475400, Rev. -
GND
P2-2
GAIN SEL
P2-3
GAIN
P2
1
2
3
CON3
GND
GND
P1-4
VCC
P1-1
VCC
P1
1
2
3
4
CON4
NOTES:
1. For best image rejection, provide a common ground under the device connecting pins 10, 11, 26, and 27.
2. There is a single gain select pin for both frequency bands.
3. The image reject SAW filters are assumed to have a 3 dB insertion loss and 40 dB of image rejection.
4. Parts with "*" should not be populated on the evaluation board.
C26
1 nF
C25
1 uF
+
C29
1 nF
C35
1 nF
C31
1 nF
C33
1 nF
Gain
VCC LNA2
VCC LNA1
VCC MX2
VCC LO2
VCC DBLR
VCC IF
VCC MX1
VCC LO1
VCC
C28
1 nF
C30
1 nF
C34
1 nF
C32
1 nF
JP1
HEADER 9X2
16
18
17
13
15
14
10
12
11
7
9
8
4
6
5
1
3
2
Part of Test Board
C27
1 nF
Preliminary
8-98
RF2475
Rev A2 010918
8
F
R
O
N
T
-
E
NDS
Evaluation Board Layout
Board Size 2.6" x 2.0"
Board Thickness 0.058", Board Material FR-4, Multi-Layer
Assembly
Top
Preliminary
8-99
RF2475
Rev A2 010918
8
F
R
O
N
T
-
E
NDS
Inner 1
Inner 2
Back
Preliminary
8-100
RF2475
Rev A2 010918
8
F
R
O
N
T
-
E
NDS
LNA1 Gain versus Frequency
Gain Select=High, V
CC
=2.8 V
16.0
17.0
18.0
19.0
20.0
21.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
LNA1 Gain versus Supply Voltage
Gain Select=High, 882 MHz
16.0
17.0
18.0
19.0
20.0
21.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
LNA1 Noise Figure versus Frequency
Gain Select=High, V
CC
=2.8 V
0.0
0.5
1.0
1.5
2.0
2.5
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
Noise
Figure
(
dB)
LNA1 Input IP3 versus Frequency
Gain Select=High, -40 dBm per tone, 1 MHz Separation, V
CC
=2.8 V
-5.0
-4.0
-3.0
-2.0
-1.0
0.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
LNA1 Input IP3 versus Supply Voltage
Gain Select=High, 882/883 MHz, -40dBm per tone
-3.0
-2.0
-1.0
0.0
1.0
2.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
LNA1 Noise Figure versus Supply Voltage
Gain Select=High, 882 MHz
0.0
0.5
1.0
1.5
2.0
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
Supply Voltage (V)
Noise
Figure
(
dB)
Preliminary
8-101
RF2475
Rev A2 010918
8
F
R
O
N
T
-
E
NDS
Mixer1 Gain versus Frequency
RX Mode, V
CC
=2.8 V, LO P
IN
=-7 dBm
4.0
5.0
6.0
7.0
8.0
9.0
10.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
Mixer1 Gain versus Supply Voltage
RX Mode, 882 MHz, LO P
IN
=-7 dBm
5.0
6.0
7.0
8.0
9.0
10.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
Mixer1 SSB Noise Figure versus Frequency
RX Mode, V
CC
=2.8 V, LO P
IN
=-7 dBm
8.0
9.0
10.0
11.0
12.0
13.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
SSB
Noise
Figure
(
dB)
Mixer1 Input IP3 versus Frequency
RX Mode, -30 dBm per tone, 1 MHz Separation, V
CC
=2.8 V, LO P
IN
=-7 dBm
4.0
5.0
6.0
7.0
8.0
9.0
10.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
Mixer1 Input IP3 versus Supply Voltage
RX Mode, 882/883 MHz, -30dBm per tone, LO P
IN
=-7 dBm
6.0
7.0
8.0
9.0
10.0
11.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
Mixer1 SSB Noise Figure versus Supply Voltage
RX Mode, 882 MHz, LO P
IN
=-7 dBm
8.0
9.0
10.0
11.0
12.0
13.0
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
Supply Voltage (V)
SSB
Noise
Figure
(
dB)
Preliminary
8-102
RF2475
Rev A2 010918
8
F
R
O
N
T
-
E
NDS
LNA2 Gain versus Frequency
Gain Select=High, V
CC
=2.8 V
19.0
20.0
21.0
22.0
23.0
24.0
1920.0
1930.0
1940.0
1950.0
1960.0
1970.0
1980.0
1990.0
2000.0
Frequency (MHz)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
LNA2 Gain versus Supply Voltage
Gain Select=High, 1960 MHz
19.0
20.0
21.0
22.0
23.0
24.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
LNA2 Noise Figure versus Frequency
Gain Select=High, V
CC
=2.8 V
0.0
0.5
1.0
1.5
2.0
2.5
1920.0
1930.0
1940.0
1950.0
1960.0
1970.0
1980.0
1990.0
2000.0
Frequency (MHz)
Noise
Figure
(
dB)
LNA2 Input IP3 versus Frequency
Gain Select=High, -40 dBm per tone, 1 MHz Separation, V
CC
=2.8 V
-8.0
-7.0
-6.0
-5.0
-4.0
-3.0
1920.0
1930.0
1940.0
1950.0
1960.0
1970.0
1980.0
1990.0
2000.0
Frequency (MHz)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
LNA2 Input IP3 versus Supply Voltage
Gain Select=High, 1960/1961 MHz, -40 dBm per tone
-10.0
-9.0
-8.0
-7.0
-6.0
-5.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
LNA2 Noise Figure versus Supply Voltage
Gain Select=High, 1960 MHz
0.0
0.5
1.0
1.5
2.0
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
Supply Voltage (V)
Noise
Figure
(
dB)
Preliminary
8-103
RF2475
Rev A2 010918
8
F
R
O
N
T
-
E
NDS
Mixer2 Gain versus Frequency
RX Mode, V
CC
=2.8 V, LO P
IN
=-7 dBm
4.0
5.0
6.0
7.0
8.0
9.0
10.0
1920.0
1930.0
1940.0
1950.0
1960.0
1970.0
1980.0
1990.0
2000.0
Frequency (MHz)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
Mixer2 Gain versus Supply Voltage
RX Mode, 1960 MHz, LO P
IN
=-7 dBm
4.0
5.0
6.0
7.0
8.0
9.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
Mixer2 SSB Noise Figure versus Frequency
RX Mode, V
CC
=2.8 V, LO P
IN
=-7 dBm
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
1920.0
1930.0
1940.0
1950.0
1960.0
1970.0
1980.0
1990.0
2000.0
Frequency (MHz)
SSB
Noise
Figure
(
dB)
Mixer2 Input IP3 versus Frequency
RX Mode, -30 dBm per tone, 1 MHz Separation, V
CC
=2.8 V, LO P
IN
=-7 dBm
4.0
5.0
6.0
7.0
8.0
9.0
10.0
1920.0
1930.0
1940.0
1950.0
1960.0
1970.0
1980.0
1990.0
2000.0
Frequency (MHz)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
Mixer2 Input IP3 versus Supply Voltage
RX Mode, 1960/1961 MHz, -30 dBm per tone, LO P
IN
=-7 dBm
6.0
7.0
8.0
9.0
10.0
11.0
12.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
Mixer2 SSB Noise Figure versus Supply Voltage
RX Mode, 1960 MHz, LO P
IN
=-7 dBm
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
Supply Voltage (V)
SSB
Noise
Figure
(
dB)
Preliminary
8-104
RF2475
Rev A2 010918
8
F
R
O
N
T
-
E
NDS
Mixer1 versus LO Amplitude
RX Mode, 882 MHz, V
CC
=2.8 V
4.0
5.0
6.0
7.0
8.0
9.0
10.0
-11.0
-10.0
-9.0
-8.0
-7.0
-6.0
-5.0
-4.0
-3.0
LO Amplitude (dBm)
Gain
(dB),
IIP3
(dBm)
9
10
11
12
13
14
15
SSB
Noise
Figure
(
dB)
Gain (dB)
IIP3 (dBm)
SSB NF (dB)
Mixer2 versus LO Amplitude
RX Mode, 1960 MHz, V
CC
=2.8 V
4.0
5.0
6.0
7.0
8.0
9.0
10.0
-11.0
-10.0
-9.0
-8.0
-7.0
-6.0
-5.0
-4.0
-3.0
LO Amplitude (dBm)
Gain
(dB),
IIP3
(dBm)
11
12
13
14
15
16
17
SSB
Noise
Figure
(
dB)
Gain (dB)
IIP3 (dBm)
SSB NF (dB)
LNA1 + Mixer1 Gain versus Frequency
RX Mode, Gain Select= High, V
CC
=2.8 V, LO P
IN
=-7 dBm
20.0
22.0
24.0
26.0
28.0
30.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
LNA1 + Mixer1 Input IP3 versus Frequency
RX Mode, Gain Select=High, 882/883 MHz, -40 dBm per tone, V
CC
=2.8 V, LO P
IN
=-7
dBm
-14.0
-13.0
-12.0
-11.0
-10.0
-9.0
-8.0
-7.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
LNA1+Mixer1 Gain versus Supply Voltage
RX Mode, Gain Select=High, 882 MHz, LO P
IN
=-7 dBm
20.0
22.0
24.0
26.0
28.0
30.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
LNA1 + Mixer1 SSB Noise Figure versus Frequency
RX Mode, Gain Select=High, V
CC
=2.8 V, LO P
IN
=-7 dBm
0.0
0.5
1.0
1.5
2.0
2.5
3.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
SSB
Noise
Figure
(
dB)
Preliminary
8-105
RF2475
Rev A2 010918
8
F
R
O
N
T
-
E
NDS
LNA2 + Mixer2 Input IP3 versus Frequency
RX Mode, Gain Select=High, 1960/1961 MHz, -40 dBm per tone, V
CC
=2.8 V, LO P
IN
=-7 dBm
-16.0
-15.0
-14.0
-13.0
-12.0
-11.0
-10.0
-9.0
1920.0
1930.0
1940.0
1950.0
1960.0
1970.0
1980.0
1990.0
2000.0
Frequency (MHz)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
LNA1 + Mixer1 SSB Noise Figure versus Supply Voltage
RX Mode, Gain Select=High, V
CC
=2.8 V, LO P
IN
=-7 dBm
0.0
0.5
1.0
1.5
2.0
2.5
3.0
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
Supply Voltage (V)
SSB
Noise
Figure
(
dB)
LNA1+Mixer1 Input IP3 versus Supply Voltage
RX Mode, Gain Select=High, 882/883 MHz, -40 dBm per tone, LO P
IN
=-7 dBm
-12.0
-11.0
-10.0
-9.0
-8.0
-7.0
-6.0
-5.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
LNA2+Mixer2 Gain versus Supply Voltage
RX Mode, Gain Select=High, 1960 MHz, LO P
IN
=-7 dBm
20.0
22.0
24.0
26.0
28.0
30.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
LNA2 + Mixer2 Gain versus Frequency
RX Mode, Gain Select=High, V
CC
=2.8 V, LO P
IN
=-7 dBm
20.0
22.0
24.0
26.0
28.0
30.0
1920.0
1930.0
1940.0
1950.0
1960.0
1970.0
1980.0
1990.0
2000.0
Frequency (MHz)
Gain
(dB)
+25C Gain
-40C Gain
+85C Gain
LNA2 + Mixer2 SSB Noise Figure versus Frequency
RX Mode, Gain Select=High, V
CC
=2.8 V, LO P
IN
=-7 dBm
0.0
1.0
2.0
3.0
4.0
1920.0
1930.0
1940.0
1950.0
1960.0
1970.0
1980.0
1990.0
2000.0
Frequency (MHz)
SSB
Noise
Figure
(
dB)
Preliminary
8-106
RF2475
Rev A2 010918
8
F
R
O
N
T
-
E
NDS
LNA2 + Mixer2 SSB Noise Figure versus Supply Voltage
RX Mode, Gain Select=High, V
CC
=2.8 V, LO P
IN
=-7 dBm
0.0
1.0
2.0
3.0
4.0
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
Supply Voltage (V)
SSB
Noise
Figure
(
dB)
LNA2+Mixer2 IIP3 versus Supply Voltage
RX Mode, Gain Select=High, 1960/1961 MHz, -40 dBm per tone, LO P
IN
=-7 dBm
-15.0
-14.0
-13.0
-12.0
-11.0
-10.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
IIP3
(dBm)
+25C IIP3
-40C IIP3
+85C IIP3
LNA1+Mixer1 Current versus Supply Voltage
RX Mode, Gain Select=High, 882 MHz, LO P
IN
=-7 dBm
15.0
20.0
25.0
30.0
35.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
Current
(mA)
+25C Current
-40C Current
+85C Current
LNA2+Mixer2 Current versus Supply Voltage
RX Mode, Gain Select=High, 1960 MHz, LO P
IN
=-7 dBm
20.0
25.0
30.0
35.0
40.0
45.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
Current
(mA)
+25C Current
-40C Current
+85C Current
LNA1 + Mixer1 versus LO Amplitude
RX Mode, Gain Select=High, 882 MHz, V
CC
=2.8 V
20.0
22.0
24.0
26.0
28.0
30.0
-11.0
-10.0
-9.0
-8.0
-7.0
-6.0
-5.0
-4.0
-3.0
LO Amplitude (dBm)
Gain
(dB)
-13.0
-12.0
-11.0
-10.0
-9.0
-8.0
IIP3
(dBm)
Gain (dB)
IIP3 (dBm)
LNA2 + Mixer2 versus LO Amplitude
RX Mode, Gain Select=High, 1960 MHz, V
CC
=2.8 V
20.0
22.0
24.0
26.0
28.0
30.0
-11.0
-10.0
-9.0
-8.0
-7.0
-6.0
-5.0
-4.0
-3.0
LO Amplitude (dBm)
Gain
(dB)
-16.0
-15.0
-14.0
-13.0
-12.0
-11.0
IIP3
(dBm)
Gain (dB)
IIP3 (dBm)
Preliminary
8-107
RF2475
Rev A2 010918
8
F
R
O
N
T
-
E
NDS
LO Isolation
Low Band Cascaded Configuration, Supply Voltage=2.8 V
-120.0
-100.0
-80.0
-60.0
-40.0
-20.0
0.0
500.0
600.0
700.0
800.0
900.0
1000.0
1100.0
1200.0
1300.0
Frequency (MHz)
Isolation
(
dB)
LO1-IFout
LO1-LNA1in
LO Isolation
High Band Cascaded Configuration, Supply Voltage=2.8 V
-90.0
-80.0
-70.0
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
700.0
800.0
900.0
1000.0
1100.0
1200.0
1300.0
Frequency (MHz)
Isolation
(
dB)
LO1-IFout
LO1-LNA2in
LO Doubler Isolation
High Band Cascaded Configuration, Supply Voltage=2.8 V
-100.0
-90.0
-80.0
-70.0
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
1500.0
1700.0
1900.0
2100.0
2300.0
2500.0
Frequency (MHz)
Isolation
(
dB)
LO1(X2)-IFout
LO1(X2)-LNA2in
Preliminary
8-108
RF2475
Rev A2 010918
8
F
R
O
N
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NDS
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