Electrical Specifications Subject to Change
FeaTures
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LTC5590
Dual 600MHz to 1.7GHz
High Dynamic Range
Downconverting Mixer
DescripTion
The LTC
®
5590 is part of a family of dual-channel high dy-
namic range, high gain downconverting mixers covering
the 600MHz to 4GHz RF frequency range.
The LTC5590
is optimized for 600MHz to 1.7GHz RF applications. The
LO frequency must fall within the 700MHz to 1.5GHz
range for optimum performance.
A typical application
is a LTE or GSM receiver with a 700MHz to 915MHz RF
input and high side LO.
The LTC5590’s high conversion gain and high dynamic
range enable the use of lossy IF filters in high selectivity
receiver designs, while minimizing the total solution cost,
board space and system-level variation. A low current
mode is provided for additional power savings and each
of the mixer channels has independent shutdown control.
High Dynamic Range Dual Downconverting Mixer Family
PART NUMBER
LTC5590
LTC5591
LTC5592
LTC5593
RF RANGE
600MHz to 1.7GHz
1.3GHz to 2.3GHz
1.6GHz to 2.7GHz
2.3GHz to 4GHz
LO RANGE
700MHz to 1.5GHz
1.4GHz to 2.1GHz
1.7GHz to 2.5GHz
2.4GHz to 3.6GHz
Conversion Gain: 8.7dB at 900MHz
IIP3: 26dBm at 900MHz
Noise Figure: 9.7dB at 900MHz
15.6dB NF Under 5dBm Blocking
High Input P1dB; 14.1dBm at 5V
53dB Channel-to-Channel Isolation
1.25W Power Consumption at 3.3V
Low Current Mode for <800mW Consumption
Enable Pins for Each Channel
50Ω Single-Ended RF and LO Inputs
LO Input Matched In All Modes
0dBm LO Drive Level
Small Package and Solution Size
–40°C to 105°C Operation
applicaTions
n
n
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3G/4G Wireless Infrastructure Diversity Receivers
(LTE, CDMA, GSM)
MIMO Infrastructure Receivers
High Dynamic Range Downmixer Applications
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion
Wideband Receiver
1nF
V
CCIF
3.3V or 5V
200mA
150nH
1nF
150nH
190MHz
SAW
IF
AMP
190MHz
BPF
ADC
V
CC
3.3V
1µF 180mA
GAIN (dB), NF (dB)
13
12
11
IIP3
1µF
22pF
Wideband Conversion Gain
NF and IIP3 vs IF Frequency
(Mixer Only, Measured on
Evaluation Board)
27
26
25
NF
24
23
G
C
T
C
= 25°C
LO = 1090MHz
RF = 900 ±30MHz
TEST CIRCUIT IN FIGURE 1
170
180
200
190
IF FREQUENCY (MHz)
210
22
21
20
19
220
IIP3 (dBm)
IFA
+
RF
700MHz TO
915MHz
IMAGE
BPF 100pF
LNA
RFA
IF
AMP
IFA
–
V
CCA
BIAS
LO
AMP
ENA
22pF
ENA
(0V/3.3V)
10pF
10
9
8
7
LO 1090MHz
SYNTH
LO
RF
700MHz TO
915MHz
IMAGE
BPF 100pF
LNA
RFB
IF
AMP
LO
AMP
ENB
BIAS
IFB
–
V
CCB
22pF
1nF 190MHz
SAW
IF
AMP
190MHz
BPF
ADC
5590 TA01a
ENB
(0V/3.3V)
6
IFB
+
V
CCIF
150nH
5
160
150nH
V
CC
5590 TA01b
22pF
1nF
5590p
1
LTC5590
absoluTe MaxiMuM raTings
(Note 1)
pin conFiguraTion
TOP VIEW
IFGNDA
V
CCA
18 I
SEL
17 ENA
25
GND
16 LO
15 GND
14 ENB
13 GND
7
GND
8
IFGNDB
9 10 11 12
V
CCB
IFBB
+
Mixer Supply Voltage (V
CC
)......................................4.0V
IF Supply Voltage (V
CCIF
) .........................................5.5V
Enable Voltage (ENA, ENB) ..............–0.3V to V
CC
+ 0.3V
Power Select Voltage (I
SEL
) .............–0.3V to V
CC
+ 0.3V
LO Input Power (1GHz to 3GHz) .............................9dBm
LO Input DC Voltage............................................... ±0.1V
RFA, RFB Input Power (1GHz to 3GHz) ................15dBm
RFA, RFB Input DC Voltage .................................... ±0.1V
Operating Temperature Range (T
C
) ........ –40°C to 105°C
Storage Temperature Range .................. –65°C to 150°C
Junction Temperature (T
J
) .................................... 150°C
24 23 22 21 20 19
RFA 1
CTA 2
GND 3
GND 4
CTB 5
RFB 6
UH PACKAGE
24-LEAD (5mm
×
5mm) PLASTIC QFN
T
JMAX
= 150°C,
θ
JC
= 7°C/W
EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion
LEAD FREE FINISH
LTC5590IUH#PBF
TAPE AND REEL
LTC5590IUH#TRPBF
PART MARKING
5590
PACKAGE DESCRIPTION
24-Lead (5mm × 5mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 105°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
Dc elecTrical characTerisTics
PARAMETER
Power Supply Requirements (V
CCA
, V
CCB
, V
CCIFA
, V
CCIFB
)
V
CCA
, V
CCB
Supply Voltage (Pins 12, 19)
V
CCIFA
, V
CCIFB
Supply Voltage (Pins 9, 10, 21, 22)
Mixer Supply Current (Pins 12, 19)
IF Amplifier Supply Current (Pins 9, 10, 21, 22)
Total Supply Current (Pins 9, 10, 12, 19, 21, 22)
Total Supply Current – Shutdown
Enable Logic Input (ENA, ENB) High = On, Low = Off
ENA, ENB Input High Voltage (On)
ENA, ENB Input Low Voltage (Off)
ENA, ENB Input Current
Turn On Time
Turn Off Time
unless otherwise noted. Test circuit shown in Figure 1. (Note 2)
CONDITIONS
V
CC
= 3.3V, V
CCIF
= 3.3V, ENA = ENB = High, I
SEL
= Low, T
C
= 25°C,
MIN
3.1
3.1
TYP
3.3
3.3
188
191
379
MAX
3.5
5.3
TBD
TBD
TBD
500
2.5
0.3
UNITS
V
V
mA
mA
mA
µA
V
V
µA
µs
µs
5590p
ENA = ENB = Low
–0.3V to V
CC
+ 0.3V
IFB
–20
1
1.5
IFB
–
IFBA
GND
IFA
+
IFA
–
30
2
LTC5590
Dc elecTrical characTerisTics
PARAMETER
I
SEL
Input High Voltage
I
SEL
Input Low Voltage
I
SEL
Input Current
Low Current Mode Current Consumption (I
SEL
= High)
Mixer Supply Current (Pins 12, 19)
IF Amplifier Supply Current (Pins 9, 10, 21, 22)
Total Supply Current (Pins 9, 10, 12, 19, 21, 22)
123
116
239
TBD
TBD
TBD
mA
mA
mA
–0.3V to V
CC
+ 0.3V
–20
unless otherwise noted. Test circuit shown in Figure 1. (Note 2)
CONDITIONS
V
CC
= 3.3V, V
CCIF
= 3.3V, ENA = ENB = High, I
SEL
= Low, T
C
= 25°C,
MIN
2.5
0.3
30
TYP
MAX
UNITS
V
V
µA
Low Current Mode Logic Input (I
SEL
) High = Low Power, Low = Normal Power Mode
ac elecTrical characTerisTics
PARAMETER
LO Input Frequency Range
RF Input Frequency Range
IF Output Frequency Range
RF Input Return Loss
LO Input Return Loss
IF Output Impedance
LO Input Power
LO to RF Leakage
LO to IF Leakage
RF to LO Isolation
RF to IF Isolation
Channel-to-Channel Isolation
V
CC
= 3.3V, V
CCIF
= 3.3V, ENA = ENB = High, I
SEL
= Low, T
C
= 25°C,
P
LO
= 0dBm, P
RF
= –3dBm (∆f = 2MHz for two tone IIP3 tests), unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3, 4)
CONDITIONS
Low Side LO
High Side LO
Requires External Matching
Z
O
= 50Ω, 700MHz to 1600MHz
Z
O
= 50Ω, 700MHz to 1500MHz
Differential at 190MHz
f
LO
= 700MHz to 1500MHz
f
LO
= 700MHz to 1500MHz
f
LO
= 700MHz to 1500MHz
f
RF
= 600MHz to 1700MHz
f
RF
= 600MHz to 1700MHz
f
RF
= 600MHz to 1700MHz
–4
MIN
TYP
700 to 1500
1100 to 1700
600 to 1100
5 to 500
>12
>12
300Ω||2.3pF
0
<–36
<–26
>57
>17
53
6
MAX
UNITS
MHz
MHz
MHz
MHz
dB
dB
R||C
dBm
dBm
dBm
dB
dB
dB
High Side LO Downmixer Application: I
SEL
= Low, RF = 700MHz to 1100MHz, IF = 190MHz, f
LO
= f
RF
+ f
IF
PARAMETER
Conversion Gain
CONDITIONS
RF = 700MHz
RF = 900MHz
RF = 1100MHz
RF = 900 ±30MHz, LO = 1090MHz, IF = 190 ±30MHz
T
C
= –40ºC to 105ºC, RF = 1950MHz
RF = 700MHz
RF = 900MHz
RF = 1100MHz
RF = 700MHz
RF = 900MHz
RF = 1100MHz
TBD
MIN
TBD
TYP
8.6
8.7
8.5
±0.25
–0.006
25.3
26.0
24.8
9.3
9.7
9.9
TBD
MAX
UNITS
dB
dB
dB
dB
dB/°C
dBm
dBm
dBm
dB
dB
dB
Conversion Gain Flatness
Conversion Gain vs Temperature
Input 3rd Order Intercept
SSB Noise Figure
5590p
3
LTC5590
ac elecTrical characTerisTics
PARAMETER
SSB Noise Figure Under Blocking
CONDITIONS
f
RF
= 900MHz, f
LO
= 1090MHz, f
BLOCK
= 800MHz
P
BLOCK
= 5dBm
P
BLOCK
= 10dBm
f
RF
= 995MHz at –10dBm, f
LO
= 1090MHz,
f
IF
= 190MHz
f
RF
= 1026.67MHz at –10dBm, f
LO
= 1090MHz,
f
IF
= 190MHz
f
RF
= 900MHz, V
CCIF
= 3.3V
f
RF
= 900MHz, V
CCIF
= 5V
V
CC
= 3.3V, V
CCIF
= 3.3V, ENA = ENB = High, T
C
= 25°C, P
LO
= 0dBm,
P
RF
= –3dBm (∆f = 2MHz for two tone IIP3 tests), unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3)
High Side LO Downmixer Application: I
SEL
= Low, RF = 700MHz to 1100MHz, IF = 190MHz, f
LO
= f
RF
+ f
IF
MIN
TYP
15.6
21.2
–77
–77
10.7
14.1
MAX
UNITS
dB
dB
dBc
dBc
dBm
dBm
2LO-2RF-Output Spurious Product
(f
RF
= f
LO
– f
IF
/2)
3LO-3RF Output Spurious Product
(f
RF
= f
LO
– f
IF
/3)
Input 1dB Compression
Low Power Mode, High Side LO Downmixer Application: I
SEL
= High, RF = 700MHz to 1100MHz, IF = 190MHz, f
LO
= f
RF
+ f
IF
PARAMETER
Conversion Gain
Input 3rd Order Intercept
SSB Noise Figure
Input 1dB Compression
CONDITIONS
RF = 900MHz
RF = 900MHz
RF = 900MHz
RF = 900MHz, V
CCIF
= 3.3V
RF = 900MHz, V
CCIF
= 5V
MIN
TYP
7.7
21.5
9.9
10.4
10.9
MAX
UNITS
dB
dBm
dB
dBm
dBm
Low Side LO Downmixer Application: I
SEL
= Low, RF = 1100MHz to 1600MHz, IF = 190MHz, f
LO
= f
RF
– f
IF
PARAMETER
Conversion Gain
CONDITIONS
RF = 1200MHz
RF = 1400MHz
RF = 1600MHz
RF = 1600 ±30MHz, LO = 1790MHz, IF = 190 ±30MHz
T
C
= –40ºC to 105ºC, RF = 1600MHz
RF = 1200MHz
RF = 1400MHz
RF = 1600MHz
RF = 1200MHz
RF = 1400MHz
RF = 1600MHz
f
RF
= 1400MHz, f
LO
= 1210MHz, f
BLOCK
= 1500MHz
P
BLOCK
= 5dBm
P
BLOCK
= 10dBm
f
RF
= 1305MHz at –10dBm, f
LO
= 1210MHz,
f
IF
= 190MHz
f
RF
= 1273.33MHz at –10dBm, f
LO
= 1210MHz,
f
IF
= 190MHz
RF = 1400MHz, V
CCIF
= 3.3V
RF = 1400MHz, V
CCIF
= 5V
MIN
TYP
8.6
8.4
7.7
±0.22
–0.008
27.5
27.3
27.2
9.9
9.7
10.4
15.0
20.8
–72
–72
11.0
14.4
MAX
UNITS
dB
dB
dB
dB
dB/°C
dBm
dBm
dBm
dB
dB
dB
dB
dB
dBc
dBc
dBm
dBm
Conversion Gain Flatness
Conversion Gain vs Temperature
Input 3rd Order Intercept
SSB Noise Figure
SSB Noise Figure Under Blocking
2RF-2LO Output Spurious Product
(f
RF
= f
LO
+ f
IF
/2)
3RF-3LO Output Spurious Product
(f
RF
= f
LO
+ f
IF
/3)
Input 1dB Compression
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The LTC5590 is guaranteed functional over the case operating
temperature range of –40°C to 105°C. (θ
JC
= 7°C/W)
Note 3:
SSB Noise Figure measured with a small-signal noise source,
bandpass filter and 6dB matching pad on RF input, bandpass filter and
6dB matching pad on the LO input, and no other RF signals applied.
Note 4:
Channel A to channel B isolation is measured as the relative IF
output power of channel B to channel A, with the RF input signal applied to
channel A. The RF input of channel B is 50Ω terminated and both mixers
are enabled.
5590p
4
LTC5590
High Side LO
V
CC
= 3.3V, V
CCIF
= 3.3V, ENA = ENB = High, I
SEL
= Low, T
C
= 25°C, P
LO
= 0dBm, P
RF
= –3dBm (–3dBm/tone for two-tone IIP3 tests,
∆f = 2MHz), IF = 190MHz, unless otherwise noted. Test circuit shown in Figure 1.
Conversion Gain and IIP3 vs
RF Frequency
28
26
24
22
IIP3 (dBm)
20
18
16
14
12
10
8
6
600
700
G
C
800
900 1000 1100
RF FREQUENCY (MHz)
IIP3
–40°C
25°C
85°C
105°C
17
16
15
14
12
11
10
9
8
7
6
1200
SSB NF (dB)
13
G
C
(dB)
16
15
14
13
12
11
10
9
8
7
6
600
700
800
900 1000 1100
RF FREQUENCY (MHz)
1200
30
600
700
800
900 1000 1100
RF FREQUENCY (MHz)
1200
Typical ac perForMance characTerisTics
SSB NF vs RF Frequency
–40°C
25°C
85°C
105°C
Channel Isolation vs RF Frequency
60
55
50
45
40
35
ISOLATION (dB)
5590 G01
5590 G02
5590 G03
700Mhz Conversion Gain, IIP3
and NF vs LO Input Power
28
26
24
G
C
(dB), IIP3 (dBm)
22
20
18
16
14
12
10
8
6
–6
–4
4
–2
2
0
LO INPUT POWER (dBm)
6
5590 G04
900MHz Conversion Gain, IIP3
and NF vs LO Input Power
22
20
18
1100MHz Conversion Gain, IIP3
and NF vs LO Input Power
22
20
18
G
C
(dB), IIP3 (dBm)
28
26
24
22
20
18
16
14
12
10
8
6
–6
–4
4
–2
2
0
LO INPUT POWER (dBm)
6
5590 G06
28
26
24
G
C
(dB), IIP3 (dBm)
22
20
18
16
14
12
10
8
6
–6
–4
4
–2
2
0
LO INPUT POWER (dBm)
6
5590 G05
22
20
18
IIP3
–40°C
25°C
85°C
16
14
12
10
NF
G
C
8
6
4
2
0
SSB NF (dB)
IIP3
–40°C
25°C
85°C
16
14
12
10
8
6
4
2
0
SSB NF (dB)
IIP3
–40°C
25°C
85°C
16
14
12
10
8
6
4
2
0
SSB NF (dB)
NF
G
C
NF
G
C
Conversion Gain, IIP3 and NF vs
Supply Voltage (Single Supply)
28
26
24
G
C
(dB), IIP3 (dBm)
22
20
18
16
14
12
10
8
6
3
3.5
3.2
3.1
3.4
3.3
V
CC
, V
CCIF
SUPPLY VOLTAGE (V)
G
C
NF
IIP3
–40°C
25°C
85°C
22
20
18
16
14
12
10
8
6
4
2
0
3.6
5590 G07
Conversion Gain, IIP3 and NF vs
Supply Voltage (Dual Supply)
28
26
24
G
C
(dB), IIP3 (dBm)
22
20
18
16
14
12
10
8
6
3
4
3.5
5
4.5
V
CCIF
SUPPLY VOLTAGE (V)
G
C
NF
IIP3
–40°C
25°C
85°C
22
20
G
C
(dB), IIP3 (dBm), P1dB (dBm)
18
16
14
12
10
8
6
4
2
0
5.5
5590 G08
Conversion Gain, IIP3 and RF Input
P1dB vs Temperature
28
26
24
22
20
18
16
14
12
10
8
6
–40
G
C
20
–10
80
50
CASE TEMPERATURE (°C)
110
5590 G09
IIP3
V
CCIF
= 3.3V
V
CCIF
= 5V
SSB NF (dB)
SSB NF (dB)
P1dB
5590p
5
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