FEATURES
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300MHz to 6GHz Operating Frequency
Wide IF Bandwidth: DC to 1GHz (–1dB Bandwidth)
High Mixer IIP3: 30dBm at 1.9GHz
High Total OIP3: 40dBm at 1.9GHz
High Total OIP2: 74dBm at 1.9GHz
User Adjustable OIP2 to 80dBm
User Adjustable Image Rejection to 60dB
User Adjustable DC Offset Null
Serial Interface
Power Conversion Gain: 7.7dB at 1.9GHz
31dB RF Attenuator with 1dB Step Size
RF Switch with 40dB Isolation at 1.9GHz
Single-Ended RF Inputs with On-Chip Transformer
IF Amplifier Gain Adjustable in 8 Steps
Operating Temperature Range (T
C
): –40°C to 105°C
32-Lead 5mm
×
5mm QFN Package
LTC5586
6GHz High Linearity
I/Q Demodulator with
Wideband IF Amplifier
DESCRIPTION
APPLICATIONS
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4G and 5G Base Station Receivers
Wideband DPD Receivers
Point-To-Point Broadband Radios
High Linearity Direct Conversion I/Q Receivers
Image Rejection Receivers
The
LTC
®
5586
is a direct conversion quadrature demod-
ulator optimized for high linearity zero-IF and low IF
receiver applications in the 300MHz to 6GHz frequency
range. The very wide IF bandwidth of more than 1GHz
makes the LTC5586 particularly suited for demodulation
of very wideband signals, especially in digital predistor-
tion (DPD) applications. The outstanding dynamic range
of the LTC5586 makes the device suitable for demanding
infrastructure direct conversion applications. Proprietary
technology inside the LTC5586 provides the capability
to optimize OIP2 to 80dBm, and achieve image rejection
better than 60dB. The DC offset control function allows
nulling of the DC offset at the A/D converter input, thereby
optimizing the dynamic range of true zero-IF receivers
that use DC coupled IF signal paths. The wideband RF
and LO input ports make it possible to cover all the major
wireless infrastructure frequency bands using a single
device. The IF outputs of the LTC5586 are designed to
interface directly with most common A/D converter input
interfaces. The high OIP3 and high conversion gain of the
device eliminate the need for additional amplifiers in the
IF signal path.
All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION
Dual Band Transmitter with DPD Receiver
RF
1
PA
1
Gain, OIP3 and OIP2 vs Temperature (T
C
)
(Unoptimized)
90
80
GAIN, OIP3, OIP2 (dB,dBm,dBm)
70
60
50
40
30
20
10
0
-10
ADC
0
1
2
3
4
RF FREQUENCY (GHz)
I, 105°C
I, 85°C
I, 25°C
I, –40°C
5
6
5586 G01
OIP2
LTC5586
RFA
RFB
RFSW
ATTEN
0dB – 31dB
SPI
0º
90º
IFIP
ADC
IFIM
8 STEPS
f
LO
8 STEPS
IFQP
IFQM
OIP3
GAIN
RF
2
PA
2
5586 TA01
Q, 105°C
Q, 85°C
Q, 25°C
Q, –40°C
Rev B
Document Feedback
For more information
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1
LTC5586
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
TOP VIEW
MIM
DNC
DNC
IFIM
AIM
MIP
IFIP
24 OVDD
23 SCK
22 SDI
33
GND
21 SDO
20 LOM
19 LOP
18 VCC
17 CSB
9 10 11 12 13 14 15 16
MQM
AQM
IFQM
MQP
DNC
AQP
DNC
IFQP
AIP
32 31 30 29 28 27 26 25
GND 1
RFA 2
TEMP 3
RFSW 4
VCCN 5
VCM 6
RFB 7
GND 8
VCC, VCCN Supply Voltage (Note 21) ....... –0.3V to 5.5V
OVDD, SDO Voltage (Note 18)................... –0.3V to 3.8V
RFA, RFB DC Voltage ...................................1.5V to 2.0V
LOP, LOM DC Voltage .................................. 2.1V to 2.8V
IFIM, IFIP, IFQP, IFQM DC Voltage ............. –0.3V to 3.5V
AIM, AIP, AQM, AQP
DC Voltage ........................... V
CC
– 1.7V to V
CC
– 1.2V
MIM, MIP, MQM, MQP
DC Voltage ........................... V
CC
– 1.7V to V
CC
– 1.2V
Voltage on Any Other Pin .......................... –0.3V to 5.5V
LOP, LOM, RFA, RFB Input Power (Note 17) ......+20dBm
Output Short Circuit Duration (Notes 14, 17) ... Indefinite
Maximum Junction Temperature (T
JMAX
) ............. 150°C
Case Operating Temperature Range (T
C
) –40°C to 105°C
Storage Temperature Range .................. –65°C to 150°C
UH PACKAGE
32-LEAD (5mm
×
5mm) PLASTIC QFN
T
JMAX
= 150°C,
θ
JC
= 7.7°C/W
EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LTC5586IUH#PBF
TAPE AND REEL
LTC5586IUH#TRPBF
PART MARKING
5586
PACKAGE DESCRIPTION
32-Lead (5mm x 5mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 105°C
Consult ADI Marketing for parts specified with wider operating temperature ranges.
Tape and reel specifications.
Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
Rev B
2
For more information
www.analog.com
LTC5586
T
C
= 25°C, V
CC
= V
CCN
= 5V, OVDD = CSB = RFSW = 3.3V, SDI = SCK = 0V,
VCM = 0.9V, P
IF
= 1.5dBm (–1.5dBm/tone for 2-tone tests), P
LO
= 6dBm, all registers at default values unless otherwise noted.
(Notes 2, 3, 6, 9, 19, 22)
SYMBOL
f
RF(RANGE)
f
LO(RANGE)
RL
RF
RL
LO
P
LO(RANGE)
G
P(MAX)
PARAMETER
RF Input Frequency Range
LO Input Frequency Range
RF Input Return Loss
LO Input Return Loss
LO Input Power Range
Maximum Power Conversion Gain
ATT = 0x00, AMPG = 0x06,
R
LOAD
= 100Ω Differential (Note 8)
CONDITIONS
(Note 12)
(Note 12)
f
RF
= 300MHz to 500MHz (Note 5)
f
RF
= 500MHz to 6.0GHz
f
LO
= 300MHz to 6.0GHz
(Note 12)
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
MIN
TYP
0.3 to 6.0
0.3 to 6.0
>10
>10
>10
– 6 to 12
7.4
9.2
7.7
7.1
4.3
0.7
–23.3
–21.3
–21.8
–23.5
–24.0
–23.9
1.0
0.2
0.05
100
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
49
48
40
42
38
25
19.0
17.8
19.5
21.1
23.2
31.0
19.7
18.9
20.8
22.5
24.8
30.2
41/44
42/43
40/42
38/40
35/36
32/33
75/80
75/80
74/80
65/80
60/70
49/56
MAX
UNITS
GHz
GHz
dB
dB
dB
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Rev B
ELECTRICAL CHARACTERISTICS
G
P(MIN)
Power Conversion Gain at Maximum
Attenuation. ATT = 0x1F AMPG = 0x06,
,
R
LOAD
= 100Ω, Differential (Note 8)
Attenuation Step Size
Attenuation Step Accuracy
RFA, RFB Gain Error
RFA, RFB Switching Time
AB
ISO
RFA, RFB Isolation
NF
Noise Figure, Double Side Band (Note 4)
NF
BLOCKING
Noise Figure Under Blocking Conditions
Double Side Band, P
IF
,
BLOCKER
= 1.5dBm
(Note 7)
OIP3
Output 3rd Order Intercept
Unadjusted/Adjusted
OIP2
Output 2nd Order Intercept
Unadjusted/Adjusted
For more information
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3
LTC5586
T
C
= 25°C, V
CC
= V
CCN
= 5V, OVDD = CSB = RFSW = 3.3V, SDI = SCK = 0V,
VCM = 0.9V, P
IF
= 1.5dBm (–1.5dBm/tone for 2-tone tests), P
LO
= 6dBm, all registers at default values unless otherwise noted.
(Notes 2, 3, 6, 9, 19, 22)
SYMBOL
IIP3
DEMOD
PARAMETER
Input 3rd Order Intercept Without Amplifier
Unadjusted
CONDITIONS
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
IF
= 10MHz
f
IF
= 100MHz
f
IF
= 200MHz
f
IF
= 300MHz
f
IF
= 500MHz
f
IF
= 1000MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
DCOI, DCOQ = 0x00 to 0xFF
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
GERR = 0x00 to 0x3F
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
PHA = 0x000 to 0x1FF
MIN
TYP
31
29
30
30
30
32
42
41
38
37
35
30
–63/–85
–62/–90
–63/–90
–61/–90
–64/–85
–52/–74
–83/–84
–80/–81
–80/–81
–80/–80
–79/–78
–69/–73
10.5
13
13
13
13
12.5
20
21
22
25
35
45
–75 to 75
640
0.04
0.05
0.06
0.06
0.07
0.10
–0.5 to 0.5
0.016
0.4
1.1
1.1
2.3
3.2
0.3
–2.5 to 2.5
MAX
UNITS
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBm
dBm
dBm
dBm
dBm
dBm
mV
mV
mV
mV
mV
mV
mV
µV
dB
dB
dB
dB
dB
dB
dB
dB
Deg
Deg
Deg
Deg
Deg
Deg
Deg
Rev B
ELECTRICAL CHARACTERISTICS
OIP3
AMP
Output 3rd Order Intercept, Amplifier Only
(Note 15)
HD2
2nd Order Harmonic Distortion
Unadjusted/Adjusted
HD3
3rd Order Harmonic Distortion
Unadjusted/Adjusted
P1dB
Output 1dB Compression Point
DC
OFFSET
DC Offset, Unadjusted (Note 13)
DC
OFF(RANGE)
DC Offset Adjustment Range
DC
OFF(STEP)
∆G
DC Offset Step Size
I/Q Gain Mismatch, Unadjusted
∆G
(RANGE)
∆G(STEP)
∆φ
I/Q Gain Mismatch Adjustment Range
I/Q Gain Mismatch Adjustment Step Size
I/Q Phase Mismatch, Unadjusted
∆φ
(RANGE)
I/Q Phase Mismatch Adjustment Range
4
For more information
www.analog.com
LTC5586
T
C
= 25°C, V
CC
= V
CCN
= 5V, OVDD = CSB = RFSW = 3.3V, SDI = SCK = 0V,
VCM = 0.9V, P
IF
= 1.5dBm (–1.5dBm/tone for 2-tone tests), P
LO
= 6dBm, all registers at default values unless otherwise noted.
(Notes 2, 3, 6, 9, 19, 22)
SYMBOL
∆φ
(STEP)
IRR
PARAMETER
I/Q Phase Mismatch Adjustment Step Size
Image Rejection Ratio
Unadjusted/Adjusted
(Note 10)
f
RF
= 400MHz
f
RF
= 700MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
LO
= 400MHz
f
LO
= 900MHz
f
LO
= 1900MHz
f
LO
= 2600MHz
f
LO
= 3500MHz
f
LO
= 5800MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
RF
= 400MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2600MHz
f
RF
= 3500MHz
f
RF
= 5800MHz
f
LO
= 400MHz
f
LO
= 900MHz
f
LO
= 1900MHz
f
LO
= 2600MHz
f
LO
= 3500MHz
f
LO
= 5800MHz
4.75
430
CONDITIONS
MIN
TYP
0.05
51/68
44/70
45/68
39/69
33/70
39/70
–67
–63
–56
–55
–45
–47
59
65
66
62
57
52
70
65
50
53
48
47
–37
–36
–34
–33
–42
–36
5.0
440
700
1.2 to 3.3
0.7 • OV
DD
0.3 • OV
DD
RFSW = 3.3V
I
TEMP
= 100μA into TEMP pin, T
J
= 25°C
I
TEMP
= 100μA into TEMP pin
Differential
Common-Mode
Differential
Common-Mode
Differential
IFIP = IFIM = IFQP = IFQM = 0V
1
0.774
–1.52
100||0.6
3.6
200||0.2
3.0 to 4.0
4||0.5
100
0.5 to 2.0
5.25
470
MAX
UNITS
Deg
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
V
mA
µA
V
V
V
μA
V
mV/°C
Ω||pF
V
Ω||pF
V
kΩ||pF
mA
V
Rev B
ELECTRICAL CHARACTERISTICS
LR
LEAK
LO to RF Leakage
RL
ISO
RF to LO Isolation
RI
ISO
RF to IF Isolation (Note 16)
LI
LEAK
LO to IF Leakage (Note 16)
Power Supply and Other Parameters
V
CC
, V
CCN
I
CC
I
VCCN
OV
DD
V
DH
V
DL
I
RFSW
V
TEMP
Z
MIX(OUT)
V
MIX(OUT)
Z
AMP(IN)
V
AMP(IN)
Z
AMP(OUT)
I
AMP(SC)
V
CM(RANGE)
Supply Voltage
Supply Current
Supply Current to VCCN Pin
Digital I/O Supply Voltage
RFSW Input High Voltage (On)
RFSW Input Low Voltage (Off)
RFSW Pin Input Current
TEMP Diode Bias Voltage
TEMP Diode Temperature Slope
Mixer Output Impedance
Mixer Output DC Voltage
Amplifier Input Impedance
Amplifier DC Input Voltage
Amplifier Output Impedance
Amplifier DC Output Short Circuit Current
VCM Pin Voltage Range (Notes 11, 12)
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