ANALOG DEVICES ADL5375 Service Manual
400 MHz to 6 GHz
Data Sheet
FEATURES
Output frequency range: 400 MHz to 6 GHz
1 dB output compression: ≥9.4 dBm from 450 MHz to 4 GHz
Output return loss ≤ 12 dB from 450 MHz to 4.5 GHz
Noise floor: −160 dBm/Hz @ 900 MHz
Sideband suppression: ≤−50 dBc @ 900 MHz
Carrier feedthrough: ≤−40 dBm @ 900 MHz
IQ3dB bandwidth: ≥ 750 MHz
Baseband input bias level
ADL5375-05: 500 mV
ADL5375-15: 1500 mV
Single supply: 4.75 V to 5.25 V
24-lead LFCSP_VQ package
APPLICATIONS
Cellular communication systems
GSM/EDGE, CDMA2000, W-CDMA, TD-SCDMA
WiMAX/LTE broadband wireless access systems
Satellite modems
Broadband Quadrature Modulator
ADL5375
FUNCTIONAL BLOCK DIAGRAM
IBBP
IBBN
LOIP
LOIN
QBBN
QBBP
QUADRATURE
PHASE
SPLITTER
Figure 1.
ADL5375
RFOUT
DSOP
07052-001
GENERAL DESCRIPTION
The ADL5375 is a broadband quadrature modulator designed for
operation from 400 MHz to 6 GHz. Its excellent phase accuracy
and amplitude balance enable high performance intermediate
frequency or direct radio frequency modulation for communication systems.
The ADL5375 features a broad baseband bandwidth, along
with an output gain flatness that varies no more than 1 dB
from 450 MHz to 3.5 GHz. These features, coupled with a broadband output return loss of ≤−12 dB, make the ADL5375 ideally
suited for broadband zero IF or low IF-to-RF applications,
broadband digital predistortion transmitters, and multiband
radio designs.
The ADL5375 accepts two differential baseband inputs and
a single-ended LO. It generates a single-ended 50 Ω output.
The two versions offer input baseband bias levels of 500 mV
(ADL5375-05) and 1500 mV (ADL5375-15).
The ADL5375 is fabricated using an advanced silicon-germanium
bipolar process. It is available in a 24-lead, exposed paddle, leadfree, LFCSP_VQ package. Performance is specified over a −40°C
to +85°C temperature range. A lead-free evaluation board is
also available.
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2007–2011 Analog Devices, Inc. All rights reserved.
ADL5375 Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 7
ESD Caution .................................................................................. 7
Pin Configuration and Function Descriptions ............................. 8
Typical Performance Characteristics ............................................. 9
ADL5375-05 .................................................................................. 9
ADL5375-15 ................................................................................ 14
Theory of Operation ...................................................................... 19
Circuit Description..................................................................... 19
Basic Connections .......................................................................... 20
Power Supply and Grounding ................................................... 20
Baseband Inputs .......................................................................... 20
LO Input ...................................................................................... 20
RF Output .................................................................................... 20
Output Disable ............................................................................ 21
Applications Information .............................................................. 22
Carrier Feedthrough Nulling .................................................... 22
Sideband Suppression Optimization ....................................... 22
Interfacing the ADF4350 PLL to the ADL5375 ..................... 23
DAC Modulator Interfacing ..................................................... 24
GSM/EDGE Operation ............................................................. 27
W-CDMA Operation ................................................................. 28
LO Generation Using PLLs ....................................................... 29
Transmit DAC Options ............................................................. 29
Modulator/Demodulator Options ........................................... 29
Evaluation Board ............................................................................ 30
Characterization Setup .................................................................. 33
Outline Dimensions ....................................................................... 35
Ordering Guide .......................................................................... 35
REVISION HISTORY
9/11—Rev. A to Rev. B
Changes to Features Section............................................................ 1
Replaced Table 1 ............................................................................... 3
Changes to Typical Performance Characteristics Section ........... 9
Updated Output Disable Section .................................................. 21
Changes to Application Information Section ............................ 22
Changes to Evaluation Board Section .......................................... 30
Changes to Figure 80 ...................................................................... 34
Added Exposed Pad Notation to Outline Dimensions ............. 35
11/08—Rev. 0 to Rev. A
Change AD9779 to AD9779A .......................................... Universal
Added Endnote, I/Q Input Bias Level and Absolute
Voltage Level Parameters, Table 1 .................................................. 6
Added Absolute Voltage Level Parameter, Table 1 ....................... 6
12/07—Revision 0: Initial Version
Rev. B | Page 2 of 36
Data Sheet ADL5375
SPECIFICATIONS
VS = 5 V; TA = 25°C; LO = 0 dBm single-ended drive; baseband I/Q amplitude = 1 V p-p differential sine waves in quadrature with a
500 mV (ADL5375-05) or 1500 mV (ADL5375-15) dc bias; baseband I/Q frequency (f
Table 1.
Parameter Conditions
OPERATING FREQUENCY RANGE
Low frequency 400 400 MHz
High frequency 6000 6000 MHz
LO = 450 MHz
Output Power, P
V
OUT
= 1 V p-p differential 0.85 0.47 dBm
IQ
Modulator Voltage Gain RF output divided by baseband input voltage −3.1 −3.5 dB
Output P1dB 9.6 10 dBm
Output Return Loss −16.4 −15.2 dB
Carrier Feedthrough −47.5 -42.5 dBm
Sideband Suppression −37.6 −38 dBc
Quadrature Error 1.7 1.49 Degrees
I/Q Amplitude Balance 0.07 0.10 dB
Second Harmonic P
ADL5375-05 P
ADL5375-15 P
Third Harmonic P
ADL5375-05 P
ADL5375-15 P
Output IP2
− (fLO + (2 × fBB)) −75.9 −81.5 dBc
OUT
=0.85 dBm
OUT
= 0.47 dBm
OUT
− (fLO + (3 × fBB)) −51.5 −81.6 dBc
OUT
= 0.85 dBm
OUT
= 0.47 dBm
OUT
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
amplitude per tone = 0.5 V p-p differential
Output IP3
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
amplitude per tone = 0.5 V p-p differential
Noise Floor
I/Q inputs = 0 V differential with a dc bias
only, 20 MHz carrier offset
LO = 900 MHz
Output Power, P
V
OUT
= 1 V p-p differential 0.75 0.41 dBm
IQ
Modulator Voltage Gain RF output divided by baseband input voltage −3.2 −3.5 dB
Output P1dB 9.6 10 dBm
Output Return Loss −15.7 −14.7 dB
Carrier Feedthrough −45.1 −39.9 dBm
Sideband Suppression −52.8 −49.9 dBc
Quadrature Error 0.01 0.20 Degrees
I/Q Amplitude Balance 0.07 0.10 dB
Second Harmonic P
ADL5375-05 P
ADL5375-15 P
Third Harmonic P
ADL5375-05 P
ADL5375-15 P
Output IP2
− (fLO + (2 × fBB)) −75.8 −77.2 dBc
OUT
= 0.75 dBm
OUT
= 0.41 dBm
OUT
− (fLO + (3 × fBB)) −50.7 −72.7 dBc
OUT
= 0.75 dBm
OUT
= 0.41 dBm
OUT
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
amplitude per tone = 0.5 V p-p differential
Output IP3
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
amplitude per tone = 0.5 V p-p differential
Noise Floor
I/Q inputs = 0 V differential with a dc bias
only, 20 MHz carrier offset
) = 1 MHz, unless otherwise noted.
BB
ADL5375-05 ADL5375-15
Unit Min Typ Max Min Typ Max
65.4 64.7 dBm
26.6 23.6 dBm
−160.5 −157.0 dBm/Hz
62.6 64.5 dBm
25.9 23.4 dBm
−160.0 −157.1 dBm/Hz
Rev. B | Page 3 of 36
ADL5375 Data Sheet
ADL5375-05 ADL5375-15
Parameter Conditions
LO = 1900 MHz
Output Power, P
V
OUT
= 1 V p-p differential 0.53 0.49 dBm
IQ
Modulator Voltage Gain RF output divided by baseband input voltage −3.4 −3.4 dB
Output P1dB 9.9 10.5 dBm
Output Return Loss −16.2 −15.5 dB
Carrier Feedthrough −40.3 −35.5 dBm
Sideband Suppression −50.2 −49.4 dBc
Quadrature Error 0.02 0.21 Degrees
I/Q Amplitude Balance 0.07 0.10 dB
Second Harmonic P
ADL5375-05 P
ADL5375-15 P
Third Harmonic P
ADL5375-05 P
ADL5375-15 P
Output IP2
− (fLO + (2 × fBB)) −67.9 −72.1 dBc
OUT
= 0.53dBm
OUT
= 0.49dBm
OUT
− (fLO + (3 × fBB)) −51.8 −62.8 dBc
OUT
= 0.53dBm
OUT
= 0.49dBm
OUT
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
62.6 61 dBm
amplitude per tone = 0.5 V p-p differential
Output IP3
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
24.3 22.1 dBm
amplitude per tone = 0.5 V p-p differential
Noise Floor
I/Q inputs = 0 V differential with a dc bias
−160.0 −158.2 dBm/Hz
only, 20 MHz carrier offset
LO = 2150 MHz
Output Power, P
V
OUT
= 1 V p-p differential 0.73 0.57 dBm
IQ
Modulator Voltage Gain RF output divided by baseband input voltage −3.2 −3.4 dB
Output P1dB 10.0 10.6 dBm
Output Return Loss −17.1 −16.1 dB
Carrier Feedthrough −39.7 −34.2 dBm
Sideband Suppression −47.3 −50.2 dBc
Quadrature Error −0.16 −0.18 Degrees
I/Q Amplitude Balance 0.07 0.10 dB
Second Harmonic P
ADL5375-05 P
ADL5375-15 P
Third Harmonic P
ADL5375-05 P
ADL5375-15 P
Output IP2
− (fLO + (2 × fBB)) −71.3 −81.7 dBc
OUT
= 0.73 dBm
OUT
= 0.57 dBm
OUT
− (fLO + (3 × fBB)) −52.4 −65.3 dBc
OUT
= 0.73 dBm
OUT
= 0.57 dBm
OUT
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
61.6 61.8 dBm
amplitude per tone = 0.5 V p-p differential
Output IP3
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
24.2 22.3 dBm
amplitude per tone = 0.5 V p-p differential
Noise Floor
I/Q inputs = 0 V differential with a dc bias
−159.5 −157.9 dBm/Hz
only, 20 MHz carrier offset
LO = 2600 MHz
Output Power, P
V
OUT
= 1 V p-p differential 0.61 0.62 dBm
IQ
Modulator Voltage Gain RF output divided by baseband input voltage −3.4 −3.3 dB
Output P1dB 9.6 10.6 dBm
Output Return Loss −19.3 −18 dB
Carrier Feedthrough −36.5 −33.3 dBm
Sideband Suppression −48.3 −48.5 dBc
Quadrature Error −0.37 0.19 Degrees
I/Q Amplitude Balance 0.07 0.11 dB
Second Harmonic P
− (fLO + (2 × fBB)) −60.9 −55.9 dBc
OUT
Unit Min Typ Max Min Typ Max
Rev. B | Page 4 of 36
Data Sheet ADL5375
ADL5375-05 ADL5375-15
Parameter Conditions
ADL5375-05 P
ADL5375-15 P
Third Harmonic P
ADL5375-05 P
ADL5375-15 P
Output IP2
= 0.61 dBm
OUT
= 0.62 dBm
OUT
− (fLO + (3 × fBB)) −51.3 −57.6 dBc
OUT
= 0.61 dBm
OUT
= 0.62 dBm
OUT
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
55.0 50.1 dBm
amplitude per tone = 0.5 V p-p differential
Output IP3
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
22.7 20.7 dBm
amplitude per tone = 0.5 V p-p differential
Noise Floor
I/Q inputs = 0 V differential with a dc bias
−159.0 −157.6 dBm/Hz
only, 20 MHz carrier offset
LO = 3500 MHz
Output Power, P
V
OUT
= 1 V p-p differential 0.21 0.87 dBm
IQ
Modulator Voltage Gain RF output divided by baseband input voltage −3.8 −3.1 dB
Output P1dB 9.6 10.2 dBm
Output Return Loss −20.7 −19.4 dB
Carrier Feedthrough −30.4 −28.6 dBm
Sideband Suppression −48.3 −48.8 dBc
Quadrature Error 0.01 0.13 Degrees
I/Q Amplitude Balance 0.08 0.11 dB
Second Harmonic P
ADL5375-05 P
ADL5375-15 P
Third Harmonic P
ADL5375-05 P
ADL5375-15 P
Output IP2
− (fLO + (2 × fBB)) −55.8 −63 dBc
OUT
= 0.21 dBm
OUT
= 0.87 dBm
OUT
− (fLO + (3 × fBB)) −50.2 −56.2 dBc
OUT
= 0.21 dBm
OUT
= 0.87 dBm
OUT
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
51.1 57.9 dBm
amplitude per tone = 0.5 V p-p differential
Output IP3
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
23.1 20.2 dBm
amplitude per tone = 0.5 V p-p differential
Noise Floor
I/Q inputs = 0 V differential with a dc bias
−157.6 −156.3 dBm/Hz
only, 20 MHz carrier offset
LO = 5800 MHz
Output Power, P
V
OUT
= 1 V p-p differential −1.36 0.16 dBm
IQ
Modulator Voltage Gain RF output divided by baseband input voltage −5.3 −3.8 dB
Output P1dB 4.9 4.4 dBm
Output Return Loss −7.4 −8.6 dB
Carrier Feedthrough −19.5 −16.7 dBm
Sideband Suppression −38.2 −39 dBc
Quadrature Error −0.51 −0.50 Degrees
I/Q Amplitude Balance −0.05 −0.70 dB
Second Harmonic P
ADL5375-05 P
ADL5375-15 P
Third Harmonic P
ADL5375-05 P
ADL5375-15 P
Output IP2
− (fLO + (2 × fBB)) −52.6 −50 dBc
OUT
= -1.36 dBm
OUT
= 0.16 dBm
OUT
− (fLO + (3 × fBB)) −45.7 −48.4 dBc
OUT
= -1.36 dBm
OUT
= 0.16 dBm
OUT
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
39.1 38.7 dBm
amplitude per tone = 0.5 V p-p differential
Output IP3
f1BB = 3.5 MHz, f2BB = 4.5 MHz, baseband I/Q
14.6 11.2 dBm
amplitude per tone = 0.5 V p-p differential
Noise Floor
I/Q inputs = 0 V differential with a dc bias
−153.0 −153.4 dBm/Hz
only, 20 MHz carrier offset
Unit Min Typ Max Min Typ Max
Rev. B | Page 5 of 36
ADL5375 Data Sheet
ADL5375-05 ADL5375-15
Parameter Conditions
LO INPUTS
LO Drive Level Characterization performed at typical level −6 0 +6 −6 0 +6 dBm
Input Return Loss
500 MHz < f
< 3.3 GHz
LO
≤−10 ≤−10 dB
See Figure 7 and Figure 32 for return loss vs.
frequency
BASEBAND INPUTS Pin IBBP, Pin IBBN, Pin QBBP, Pin QBBN
I/Q Input Bias Level1 500 1500 mV
Absolute Voltage Level1 On Pin IBBP, Pin IBBN, Pin QBBP, Pin QBBN 0 1 1 2 V
Input Bias Current Current sourcing from each baseband input 41 32 μA
Input Offset Current 0.1 0.1 μA
Differential Input
60 100 kΩ
Impedance
Bandwidth (0.1 dB)
LO = 1900 MHz, baseband input =
95 80 MHz
500 mV p-p sine wave
OUTPUT DISABLE Pin DSOP
Off Isolation P
(DSOP low) − P
OUT
(DSOP high) 84 85 dB
OUT
DSOP high, LO leakage, LO = 2150 MHz −55 −53 dBm
Turn-On Settling Time DSOP high to low (90% of envelope) 220 220 ns
Turn-Off Settling Time DSOP low to high (10% of envelope) 100 100 ns
DSOP High Level (Logic 1) 2.0 2.0 V
DSOP Low Level (Logic 0) 0.8 0.8 V
POWER SUPPLIES Pin VPS1 and Pin VPS2
Voltage 4.75 5.25 4.75 5.25 V
Supply Current DSOP = low 194 203 mA
DSOP = high 126 127 mA
1
The input bias level can vary as long as the voltages on the individual IBBP, IBBN, QBBP, and QBBN pins remain within the specified absolute voltage level.
Unit Min Typ Max Min Typ Max
Rev. B | Page 6 of 36
Data Sheet ADL5375
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter Rating
Supply Voltage, VPOS 5.5 V
IBBP, IBBN, QBBP, QBBN 0 V to 2 V
LOIP and LOIN 13 dBm
Internal Power Dissipation
ADL5375-05 1500 mW
ADL5375-15 1200 mW
θJA (Exposed Paddle Soldered Down)1 54°C/W
Maximum Junction Temperature 150°C
Operating Temperature Range −40°C to +85°C
Storage Temperature Range −65°C to +150°C
1
Per JDEC standard JESD 51-2. For information on optimizing thermal
impedance, see the Thermal Grounding and Evaluation Board Layout section.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
Rev. B | Page 7 of 36
ADL5375 Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
VPS2
IBBN
COMM
IBBP
COMM
COMM
2422232120
19
DSOP
1
COMM
LOIP
LOIN
COMM
NC
NOTES
1. NC = NO CONNECT . DO NOT CONNECT TO THIS PIN.
2. CONNECT TO THE GROUND LANE VIA A LOW
IMPEDANCE PATH.
ADL5375
2
3
TOP VIEW
4
(Not to Scale)
5
6
798
101112
NC
QBBP
QBBN
COMM
COMM
Figure 2. Pin Configuration
VPS1
18
COMM
17
RFOUT
16
NC
15
COMM
14
NC
13
COMM
07052-003
Table 3. Pin Function Descriptions
Pin No. Mnemonic Description
1 DSOP
Output Disable. A logic high on this pin disables the RF output. Connect this pin to ground or leave it
floating to enable the output.
2, 5, 8, 11, 12,
COMM Input Common Pins. Connect to the ground plane via a low impedance path.
14, 17, 19, 20, 23
3, 4 LOIP, LOIN Local Oscillator Inputs.
Single-ended operation: The LOIP pin is driven from the LO source through an ac-coupling capacitor
while the LOIN pin is ac-coupled to ground through a capacitor.
Differential operation: The LOIP and LOIN pins must be driven differentially through ac-coupling
capacitors in this mode of operation.
6, 7, 13, 15, NC No Connect. These pins can be left open or tied to ground.
9, 10, 21, 22
QBBN, QBBP,
IBBP, IBBN
Differential In-Phase and Quadrature Baseband Inputs. These high impedance inputs should be dc-
biased to the recommended level depending on the version.
ADL5375-05: 500 mV
ADL5375-15: 1500 mV
These inputs should be driven from a low impedance source. Nominal characterized ac signal swing is
500 mV p-p on each pin. This results in a differential drive of 1 V p-p. These inputs are not self-biased
and have to be externally biased.
16 RFOUT RF Output. Single-ended, 50 Ω internally biased RF output. RFOUT must be ac-coupled to the load.
18, 24 VPS1, VPS2
Positive Supply Voltage Pins. All pins should be connected to the same supply (V
). To ensure adequate
S
external bypassing, connect 0.1 μF and 100 pF capacitors between each pin and ground.
EP Exposed Paddle. Connect to the ground plane via a low impedance path.
Rev. B | Page 8 of 36
Data Sheet ADL5375
TYPICAL PERFORMANCE CHARACTERISTICS
ADL5375-05
VS = 5 V; TA = 25°C; LO = 0 dBm single-ended drive; baseband I/Q amplitude = 1 V p-p differential sine waves in quadrature with a
500 mV dc bias; baseband I/Q frequency (f
) = 1 MHz, unless otherwise noted.
BB
5
4
3
TA = –40°C
2
1
0
–1
–2
SSB OUTPUT POWER (dBm)
–3
–4
–5
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
TA = +25°C
TA = +85°C
LO FREQUENCY (GHz)
Figure 3. Single-Sideband (SSB) Output Power (P
LO Frequency (f
5
4
3
2
1
0
–1
–2
SSB OUTPUT POWER (dBm)
–3
–4
–5
0 0.51.01.52.02.53.03.54.04.55.05.56.0
) and Temperature
LO
VS = 5.25V
LO FREQ UENCY (GHz)
VS = 5.0V
VS = 4.75V
Figure 4. Single-Sideband (SSB) Output Power (P
LO Frequency (f
14
12
10
8
6
4
TA = +85°C
) and Supply
LO
TA = +25°C
TA = –40°C
OUT
OUT
) vs.
) vs.
12
VS = 5.25V
10
8
6
4
2
1dB OUTPUT COMPRESSION (dBm)
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
07052-052
LO FREQUE NCY (GHz)
VS = 4.75V
VS = 5.0V
07052-055
Figure 6. SSB Output 1dB Compression Point (OP1dB) vs. LO Frequency (fLO)
and Supply
90
120
150
3
400MHz
180
210
240
07052-053
Figure 7. Smith Chart of LOIP (LOIN AC-Coupled to Ground) S11 and RFOUT
400MHz
1
6GHz
4
S11
S22
270
60
1
400MHz
30
25.73 – j8.14
2
S11
6GHz
75.88 – j76.94
0
3
S22
400MHz
330
40.01 + j9.20
4
S22
6GHz
30.52 – j30.09
07052-097
2
6GHz
300
S22 from 450 MHz to 6000 MHz
0
LOIP
–5
–10
–15
–20
RETURN LOSS (dB)
RFOUT
1dB OUTPUT COMPRESSION (dBm)
2
0
0 0.51.01.52.02.53.03.54.04.55.05.56.0
LO FREQ UENCY (GHz)
07052-054
Figure 5. SSB Output 1dB Compression Point (OP1dB) vs. LO Frequency (fLO)
and Temperature
Rev. B | Page 9 of 36
–25
–30
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
FREQUE NCY (GHz )
07052-056
Figure 8. Return Loss of LOIP (LOIN AC-Coupled to Ground) S11 and RFOUT
S22 from 450 MHz to 6000 MHz
ADL5375 Data Sheet
–
–
0
–5
–10
–15
–20
–25
–30
–35
–40
–45
CARRIER FEEDTHRO UGH (dBm)
–50
–55
–60
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
LO FREQ UENCY (GHz)
TA = +85°C
= +25°C
T
A
T
= –40°C
A
07052-057
Figure 9. Carrier Feedthrough vs. LO Frequency (fLO) and Temperature;
Multiple Devices Shown
0
–10
–20
–30
–40
–50
–60
CARRIER FEE DTHROUGH (dBm)
–70
–80
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
LO FRE QUENCY (G Hz)
TA = +85°C
T
T
= –40°C
A
= +25°C
A
07052-058
Figure 10. Carrier Feedthrough vs. LO Frequency (fLO) and Temperature After
Nulling at 25°C; Multiple Devices Shown
0
–10
–20
T
= +25°C
A
TA = +85°C
T
A
= –40°C
07052-059
–30
–40
–50
–60
SIDEBAND SUPPRESSIO N (dBc)
–70
–80
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
LO FREQ UENCY (GHz)
Figure 11. Sideband Suppression vs. LO Frequency (fLO) and Temperature;
Multiple Devices Shown
0
–10
–20
–30
–40
–50
–60
SIDEBAND SUPPRESSIO N (dBc)
–70
–80
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
LO FREQ UENCY (GHz)
T
= +25°C
A
TA = +85°C
= –40°C
T
A
07052-060
Figure 12. Sideband Suppression vs. LO F requen cy (fLO) and Temperature After
Nulling at 25°C; Mul tiple Devices Shown
10
–20
–30
–40
–50
–60
–70
–80
–90
AND SIDEBAND SUPPRESSION (dBc)
DISTORTI ON, CARRIER F EEDTHROUGH,
–100
SECOND-ORDER DISTORTIO N, THIRD-ORDER
–110
0.1 2
CARRIER
FEEDTHROUG H (dBm)
THIRD-ORDER
DISTORTION (dBc)
BASEBAND INPUT VO LTAGE (V p-p)
SSB OUTPUT
POWER (d Bm)
SECOND-ORDER
DISTORTION (dBc)
SUPPRESSION (dBc)
SIDEBAND
1
10
5
0
–5
–10
–15
Figure 13. Second- and Third-Order Distortion, Carrier Feedthrough,
Sideband Suppression, and SSB P
10
–20
–30
–40
–50
–60
–70
–80
–90
AND SIDEBAND SUPPRE SSION (d Bc)
DISTORT ION, CA RRIER FEED THROUGH,
–100
SECOND-ORDE R DISTORT ION, T HIRD-ORDER
–110
0.1 2
CARRIER
FEEDTHROUG H (dBm)
THIRD-ORDER
DISTORTION (dBc)
BASEBAND INPUT V OLTAGE (V p-p )
vs. Baseband Differential Input Level
OUT
= 900 MHz)
(f
LO
SSB OUTPUT
POWER (d Bm)
SIDEBAND
SUPPRESSION (dBc)
SECOND-ORDER
DISTORTION (dBc)
1
10
5
0
–5
–10
–15
Figure 14. Second- and Third-Order Distortion, Carrier Feedthrough,
Sideband Suppression, and SSB P
vs. Baseband Differential Input Level
OUT
= 2150 MHz)
(f
LO
SSB OUTPUT POWER (dBm)
07052-061
SSB OUTPUT POWER (dBm)
07052-062
Rev. B | Page 10 of 36
Data Sheet ADL5375
–
–
–
0
–10
–20
–30
–40
–50
–60
–70
–80
AND SIDEBAND SUPPRESSION (dBc)
DISTORTI ON, CARRIER FEE DTHROUGH,
–90
SECOND-ORDER DISTO RTION, THI RD-ORDER
–100
0.1 2
CARRIER
FEEDTHROUGH (dBm)
THIRD-O RDER
DISTORTION (dBc)
BASEBAND INPUT VOLTAGE (V p- p)
SSB OUTPUT
POWER (dBm)
SECOND-ORDER
DISTORTI ON (dBc)
SIDEBAND
SUPPRESSION (dBc)
1
Figure 15. Second- and Third-Order Distortion, Carrier Feedthrough,
Sideband Suppression, and SSB P
10
–20
–30
–40
THIRD-ORDER
–50
–60
SECOND-ORDER
THIRD-ORDER DISTORTI ON (dBc)
SECOND-ORDER DISTORTI ON AND
–70
–80
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
vs. Baseband Differential Input Level
OUT
= 3500 MHz)
(f
LO
= –40°C
TA = +85°C
T
= +25°C
A
T
A
LO FREQ UENCY (GHz )
Figure 16. Second- and Third-Order Distortion vs. LO Frequency (fLO) and
Temperature (Baseband I/Q Amplitude = 1 V p-p Differential)
20
–30
–40
–50
SUPPRESSION (dBc)
CARRIER FE EDTHROUG H,
SECOND-O RDER DIST ORTI ON,
SIDEBAND SUP PRESSI ON (dB)
–60
–70
110100
SSB OUT PUT POW ER (dBm )
SIDEBAND
BASEBAND FREQUENCY (MHz)
CARRIER
FEEDTHROUGH (d Bm)
SECOND-ORDER
DISTORTI ON (dBc)
1.5
0.5
–0.5
–1.5
–2.5
–3.5
Figure 17. Second-Order Distortion, Carrier Feedthrough, Sideband
Suppression, and SSB P
vs. Baseband Frequency (fBB); fLO = 2140 MHz
OUT
10
5
0
–5
–10
–15
30
25
20
15
10
SSB OUTPUT POWE R (dBm)
07052-063
5
OUTPUT THI RD-ORDER INTERCEPT (dBm)
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
LO FRE QUENCY (G Hz)
Figure 18. OIP3 vs. LO Frequency (fLO) and Temperature (P
80
70
60
50
40
30
20
10
OUTPUT SECOND-O RDER INT ERCEPT (dBm)
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
07052-064
LO FREQ UENCY (GHz)
TA = +25°C
Figure 19. OIP2 vs. LO Frequency (fLO) and Temperature (P
20
SSB OUTPUT
POWER (dBm)
–30
CARRIER
FEEDTHROUG H (dBm)
–40
–50
–60
SSB OUTPUT POWER (dBm)
07052-098
–70
AND CARRIER FEEDT HROUGH (dBm)
SECOND-ORDER DIS TORTIO N, THIRD-O RDER
DISTORTION,SIDEBAND S UPPRESSION ( dBc),
–80
–6 –4 –2 0 2 4 6
SIDEBAND
SUPPRESSION (dBc)
LO AMPLITUDE (dBm)
DISTORTION (dBc)
SECOND-ORDER
DISTORTION (dBc)
TA = –40°C
TA = +25°C
TA = +85°C
TA = +85°C
THIRD-ORDER
≈ −5 dBm)
OUT
TA = –40°C
≈ −5 dBm)
OUT
07052-087
07052-088
2
1
0
–1
–2
SSB OUTPUT POWER (d Bm)
–3
–4
07052-065
Figure 20. Second- and Third-Order Distortion, Carrier Feedthrough,
Sideband Suppression, and SSB P
vs. LO Amplitude (fLO = 900 MHz)
OUT
Rev. B | Page 11 of 36
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