ANALOG DEVICES ADL5367 Service Manual

500 MHz to 1700 MHz Balanced Mixer,
V

FEATURES

RF frequency range of 500 MHz to 1700 MHz IF frequency range of 30 MHz to 450 MHz Power conversion loss: 7.7 dB SSB noise figure of 8.3 dB SSB noise figure with 5 dBm blocker of 21 dB Input IP3 of 34 dBm Typical LO drive of 0 dBm Single-ended, 50 Ω RF and LO input ports High isolation SPDT LO input switch Single-supply operation: 3.3 V to 5 V Exposed paddle 5 mm × 5 mm, 20-lead LFCSP 1500 V HBM/500 V FICDM ESD performance

APPLICATIONS

Cellular base station receivers Transmit observation receivers Radio link downconverters

GENERAL DESCRIPTION

The ADL5367 uses a highly linear, doubly balanced passive mixer core along with integrated RF and LO balancing circuitry to allow for single-ended operation. The ADL5367 incorporates an RF balun, allowing optimal performance over a 500 MHz to 1700 MHz RF input frequency range. Performance is optimized for RF frequencies from 500 MHz to 1200 MHz using a high-side LO and for RF frequencies from 900 MHz to 1700 MHz using a low-side LO. The balanced passive mixer arrangement provides good LO-to-RF leakage, typically better than −35 dBm, and excellent intermodulation performance. The balanced mixer core also provides extremely high input linearity, allowing the device to be used in demanding cellular applications where in­band blocking signals may otherwise result in the degradation of dynamic performance. A high linearity IF buffer amplifier follows the passive mixer core to yield a typical power conversion loss of 7.7 dB and can be used with a wide range of output impedances.
LO Buffer and RF Balun
ADL5367

FUNCTIONAL BLOCK DIAGRAM

CMI IFOP IFON PWDN COMM
20 19 18 17 16
1
VPMX
2
RFIN
3
RFCT
BIAS
GENERATOR
4
COMM
5
COMM
6 7 8 9 10
VLO3 LGM3 VLO2 LOSW NC
NC = NO CONNECT
Figure 1.
The ADL5367 provides two switched LO paths that can be used in TDD applications where it is desirable to rapidly switch between two local oscillators. LO current can be externally set using a resistor to minimize dc current commensurate with the desired level of performance. For low voltage applications, the ADL5367 is capable of operation at voltages down to 3.3 V with substantially reduced current. Under low voltage operation, an additional logic pin is provided to power down (<200 μA) the circuit when desired.
The ADL5367 is fabricated using a BiCMOS high performance IC process. The device is available in a 5 mm × 5 mm, 20-lead LFCSP and operates over a −40°C to +85°C temperature range. An evaluation board is also available.
Table 1. Passive Mixers
RF Frequency (MHz)
Single Mixer
Single Mixer + IF Amp
500 to 1700 ADL5367 ADL5357 ADL5358 1200 to 2500 ADL5365 ADL5355 ADL5356
ADL5367
15
LOI2
14
VPSW
13
VGS1
12
VGS0
11
LOI1
Dual Mixer + IF Amp
8083-001
Rev. 0
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 ©2009 Analog Devices, Inc. All rights reserved.
ADL5367

TABLE OF CONTENTS

Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
5 V Performance ........................................................................... 4
3.3 V Performance ........................................................................ 4
Absolute Maximum Ratings ............................................................ 5
ESD Caution .................................................................................. 5
Pin Configuration and Function Descriptions ............................. 6
Typical Performance Characteristics ............................................. 7
5 V Performance ........................................................................... 7
3.3 V Performance ...................................................................... 14
Upconversion .............................................................................. 15
Spur Tables .................................................................................. 16
Circuit Description......................................................................... 17
RF Subsystem .............................................................................. 17
LO Subsystem ............................................................................. 17
Applications Information .............................................................. 19
Basic Connections ...................................................................... 19
IF Port .......................................................................................... 19
Bias Resistor Selection ............................................................... 19
Mixer VGS Control DAC .......................................................... 19
Evaluation Board ............................................................................ 20
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23

REVISION HISTORY

10/09—Revision 0: Initial Version
Rev. 0 | Page 2 of 24
ADL5367

SPECIFICATIONS

VS = 5 V, IS = 97 mA, TA = 25°C, fRF = 900 MHz, fLO = 1103 MHz, LO power = 0 dBm, ZO = 50 Ω, unless otherwise noted.
Table 2.
Parameter Conditions Min Typ Max Unit
RF INPUT INTERFACE
Return Loss Tunable to >20 dB over a limited bandwidth 14 dB Input Impedance 50 Ω RF Frequency Range 500 1700 MHz
OUTPUT INTERFACE
Output Impedance Differential impedance, f = 200 MHz 34||1.9 Ω||pF IF Frequency Range 30 450 MHz DC Bias Voltage1 Externally generated 3.3 5.0 5.5 V
LO INTERFACE
LO Power −6 0 +10 dBm Return Loss 12.6 dB Input Impedance 50 Ω LO Frequency Range 730 1670 MHz
POWER-DOWN (PWDN) INTERFACE
PWDN Threshold 1.0 V Logic 0 Level 0.4 V Logic 1 Level 1.4 V PWDN Response Time Device enabled, IF output to 90% of its final level 160 ns Device disabled, supply current < 5 mA 220 ns PWDN Input Bias Current Device enabled 0.0 μA
Device disabled 70 μA
1
Apply the supply voltage from the external circuit through the choke inductors.
2
PWDN function is intended for use with VS ≤ 3.6 V only.
2
Rev. 0 | Page 3 of 24
ADL5367

5 V PERFORMANCE

VS = 5 V, IS = 97 mA, TA = 25°C, fRF = 900 MHz, fLO = 1103 MHz, LO power = 0 dBm, VGS0 = VGS1 = 0 V, and ZO = 50 Ω, unless otherwise noted.
Table 3.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
Power Conversion Loss Including 1:1 IF port transformer and PCB loss 6.5 7.7 8.5 dB Voltage Conversion Loss Z SSB Noise Figure 8.3 dB SSB Noise Figure Under Blocking
Input Third-Order Intercept (IIP3)
Input Second-Order Intercept (IIP2)
Input 1 dB Compression Point (IP1dB)1 Exceeding 20 dBm RF power results in damage to the device 25 dBm LO-to-IF Leakage Unfiltered IF output −15 dBm LO-to-RF Leakage −40 dBm RF-to-IF Isolation −47 dBc IF/2 Spurious 0 dBm input power −75 dBc IF/3 Spurious 0 dBm input power −72 dBc
POWER SUPPLY
Positive Supply Voltage 4.5 5 5.5 V Total Quiescent Current VS = 5 V 97 mA
1
Exceeding 20 dBm RF power results in damage to the device.
= 50 Ω, differential Z
SOURCE
= 50 Ω differential 1.4 dB
LOAD
5 dBm blocker present ±10 MHz from wanted RF input, LO source filtered
= 899.5 MHz, f
f
RF1
= 900.5 MHz, fLO = 1103 MHz,
RF2
each RF tone at 0 dBm
= 950 MHz, f
f
RF1
= 900 MHz, fLO = 1103 MHz,
RF2
each RF tone at 0 dBm
21 dB
28 34 dBm
80 dBm

3.3 V PERFORMANCE

VS = 3.3 V, IS = 56 mA, TA = 25°C, fRF = 900 MHz, fLO = 1103 MHz, LO power = 0 dBm, R9 = 226 Ω, VGS0 = VGS1 = 0 V, and ZO = 50 Ω, unless otherwise noted.
Table 4.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
Power Conversion Loss Including 4:1 IF port transformer and PCB loss 7.3 dB Voltage Conversion Loss Z SSB Noise Figure 8.1 dB Input Third-Order Intercept (IIP3)
Input Second-Order Intercept (IIP2)
POWER INTERFACE
Supply Voltage 3.0 3.3 3.6 V Quiescent Current Resistor programmable 56 mA Power-Down Current Device disabled 150 μA
= 50 Ω, differential Z
SOURCE
= 1949.5 MHz, f
f
RF1
= 1950.5 MHz, fLO = 1750 MHz,
RF2
each RF tone at −10 dBm
= 1950 MHz, f
f
RF1
= 1900 MHz, fLO = 1750 MHz,
RF2
each RF tone at −10 dBm
= 200 Ω differential 1 dB
LOAD
28.5 dBm
75 dBm
Rev. 0 | Page 4 of 24
ADL5367

ABSOLUTE MAXIMUM RATINGS

Table 5.
Parameter Rating
Supply Voltage, VS 5.5 V RF Input Level 20 dBm LO Input Level 13 dBm IFOP, IFON Bias Voltage 6.0 V VGS0, VGS1, LOSW, PWDN 5.5 V Internal Power Dissipation 1.2 W θJA 25°C/W Maximum Junction Temperature 150°C Operating Temperature Range −40°C to +85°C Storage Temperature Range −65°C to +150°C Lead Temperature Range (Soldering, 60 sec) 260°C
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. 0 | Page 5 of 24
ADL5367

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

DN
IFON
IFOP
VCMI
PW
COMM
17
16
18
19
20
PIN 1 INDICATOR
1VPMX 2RFIN
ADL5367
3RFCT
TOP VIEW
4COMM
(Not to S cale)
5COMM
8
6
7
VLO3
VLO2
LGM3
NOTES
1.2 NC = NO CONNECT. . EXPOSED PAD. MUST BE SOLDERED
TO GROUND.
Figure 2. Pin Configuration
Table 6. Pin Function Descriptions
Pin No. Mnemonic Description
1 VPMX Positive Supply Voltage for IF Amplifier. 2 RFIN RF Input. This pin must be ac-coupled. 3 RFCT RF Balun Center Tap (AC Ground). 4, 5, 16 COMM Device Common (DC Ground). 6, 8 VLO3, VLO2 Positive Supply Voltages for LO Amplifier. 7 LGM3 LO Amplifier Bias Control. 9 LOSW LO Switch. LOI1 selected for 0 V, or LOI2 selected for 3 V. 10 NC No Connect. 11, 15 LOI1, LOI2 LO Inputs. This pin must be ac-coupled. 12, 13 VGS0, VGS1 Mixer Gate Bias Controls. 3 V logic. Ground these pins for nominal setting. 14 VPSW Positive Supply Voltage for LO Switch. 17 PWDN Power Down. Connect this pin to ground for normal operation or connect this pin to 3.0 V for disable mode. 18, 19 IFON, IFOP Differential IF Outputs. 20 VCMI No Connect. This pin can be grounded. EPAD (EP) Exposed pad must be soldered to ground.
15 LOI2 14 VPSW 13 VGS1 12 VGS0 11 LOI1
9
10 NC
LOSW
08083-002
Rev. 0 | Page 6 of 24
ADL5367

TYPICAL PERFORMANCE CHARACTERISTICS

5 V PERFORMANCE

VS = 5 V, IS = 97 mA, TA = 25°C, fRF = 900 MHz, fLO = 1103 MHz, LO power = 0 dBm, VGS0 = VGS1 = 0 V, and ZO = 50 Ω, unless otherwise noted.
110
100
105
100
95
90
SUPPLY CURRENT (mA)
85
80
700 750 800 850 900 950 1000 1050 1100 1150 1200
= +25°C
T
A
RF FREQUENCY ( M H z)
TA =–40°C
TA = +85°C
Figure 3. Supply Current vs. RF Frequency
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
CONVERSION LOSS (dB)
6.0
5.5
5.0
700 750 800 850 900 950 1000 1050 1100 1150 1200
T
= +25°C
A
TA =–40°C
RF FREQUENC Y ( MHz)
TA = +85°C
Figure 4. Power Conversion Loss vs. RF Frequency
40
90
80
70
INPUT IP2 (dBm)
60
50
40
700 750 800 850 900 950 1000 1050 1 100 1150 1200
08083-017
TA = –40°C
TA = +85°C
RF FREQUENCY ( MHz )
= +25°C
T
A
08083-023
Figure 6. Input IP2 vs. RF Frequency
12
11
10
9
8
7
SSB NOISE FIGURE (dB)
6
5
700 750 800 850 900 950 1000 1050 1100 1150 1200
08083-035
TA = +85ºC
TA = +25ºC
TA = –40ºC
RF FREQUENCY ( MHz)
08083-011
Figure 7. SSB Noise Figure vs. RF Frequency
38
36
34
32
INPUT IP3 (dBm)
30
28
26
T
= +25°C
A
TA = –40°C
TA = +85°C
700 750 800 850 900 950 1000 1050 1100 1150 1200
RF FREQUENCY ( M H z)
08083-028
Figure 5. Input IP3 vs. RF Frequency
Rev. 0 | Page 7 of 24
ADL5367
VS = 5 V, IS = 97 mA, TA = 25°C, fRF = 900 MHz, fLO = 1103 MHz, LO power = 0 dBm, VGS0 = VGS1 = 0 V, and ZO = 50 Ω, unless otherwise noted.
110
86
105
V
= 5.25V
V
POS
POS
= 5V
= 4.75V
TEMPERATURE (°C)
100
95
V
POS
90
SUPPLY CURRENT (mA)
85
80
–40 –20 0 20 40 60 80
Figure 8. Supply Current vs. Temperature
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
CONVERSION L O S S (d B)
6.0
5.5
5.0
–40 –20 0 20 40 60 80
TEMPERATURE (°C)
V V V
Figure 9. Power Conversion Loss vs. Temperature
40
POS POS POS
= 4.75V = 5V = 5.25V
84
82
80
78
76
INPUT IP2 (dBm)
74
72
70
–40 –20 0 20 40 60 80
08083-019
V
= 5V
POS
TEMPERATURE (°C)
V
= 5.25V
POS
V
= 4.75V
POS
8083-025
Figure 11. Input IP2 vs. Temperature
12
11
10
9
8
V
7
SSB NOISE FIGURE (dB)
6
5
–40 –20 0 20 40 60 80
08083-038
POS
TEMPERATURE (ºC)
= 4.75V
V
= 5.25V
POS
V
= 5V
POS
08083-012
Figure 12. SSB Noise Figure vs. Temperature
38
V
= 5.25V
V
POS
POS
= 4.75V
8083-030
36
34
32
INPUT IP3 (dBm)
30
28
26
–40 –20 0 20 40 60 80
V
= 5V
POS
TEMPERATURE (°C)
Figure 10. Input IP3 vs. Temperature
Rev. 0 | Page 8 of 24
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