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Электронный компонент: MAX9993ETP-T

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MAX9993
High-Linearity 1700MHz to 2200MHz Down-
Conversion Mixer with LO Buffer/Switch
________________________________________________________________ Maxim Integrated Products
1
19-2596; Rev 0; 10/02
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
General Description
The MAX9993 high-linearity down-conversion mixer
provides 8.5dB of gain, +23.5dBm IIP3, and 9.5dB NF
for UMTS, DCS, and PCS base-station applications.
The MAX9993 integrates baluns in the RF and LO ports,
a dual-input LO selectable switch, an LO buffer, a dou-
ble-balanced mixer, and a differential IF output amplifi-
er. The MAX9993 requires a typical LO drive of +3dBm,
and supply current is guaranteed to below 230mA.
The MAX9993 is available in a compact 20-pin thin
QFN package (5mm
5mm) with an exposed pad.
Electrical performance is guaranteed over the extended
-40C to +85C temperature range.
The MAX9993 EV kit is available; contact the factory for
more information.
Applications
UMTS and 3G Base Stations
DCS1800 and EDGE Base Stations
PCS1900 Base Stations
Point-to-Point Microwave Systems
Wireless Local Loop
Private Mobile Radio
Military Systems
Features
o +23.5dBm Input IIP3
o 1700MHz to 2200MHz RF Frequency Range
o 40MHz to 350MHz IF Frequency Range
o 1400MHz to 2000MHz LO Frequency Range
o 8.5dB Conversion Gain
o 9.5dB Noise Figure
o Integrated LO Buffer
o Switch-Selectable (SPDT), Two LO Inputs
o Low 0 to +6dBm LO Drive
o 40dB LO1-to-LO2 Isolation
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX9993ETP-T
-40C to 85C
20 Thin QFN-EP*
*EP = Exposed pad.
20
19
18
17
16
13
12
11
14
15
4
3
2
1
5
6
7
8
9
10
TOP VIEW
THIN QFN
V
CC
RF
TAP
GND
V
CC
LOBIAS
LO1
GND
GND
LO2
LOSEL
LEXT
IFBIAS
IF+
IF-
GND
V
CC
GND
GND
GND
MAX9993
Pin Configuration/Functional Diagram
MAX9993
High-Linearity 1700MHz to 2200MHz Down-
Conversion Mixer with LO Buffer/Switch
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
CC
..........................................................................-0.3V to 5.5V
RF (RF is DC shorted to GND through balun).....................50mA
LO1, LO2 to GND ...............................................................0.3V
TAP, IF+, IF- to GND ..................................-0.3V to (V
CC
+ 0.3V)
LOSEL to GND ................................-0.3V to (V
CC
(pin 8) + 0.3V)
LOBIAS, IFBIAS, LEXT to GND ..................-0.3V to (V
CC
+ 0.3V)
RF and LO Input Power ..................................................+22dBm
Continuous Power Dissipation (T
A
= +70C)
20-Lead Thin QFN
(derate 30.3mW/C above T
A
= +70C) ....................2200mW
JA
....................................................................................33C/W
Operating Temperature Range ...........................-40C to +85C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10s) .................................+300C
DC ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit as shown, no input RF or LO signals applied. V
CC
= 4.75V to 5.25V, T
A
= -40C to +85C. Typical values are
at V
CC
= 5.0V and T
A
= +25C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
V
CC
4.75
5.00
5.25
V
Total supply current
202
230
V
CC
(pin 8)
87
105
Supply Current
I
CC
IF+/IF- (total of both)
103
133
mA
LOSEL Input High Voltage
V
IH
2.0
V
LOSEL Input Low Voltage
V
IL
0.8
V
LOSEL Input Current
I
IL
and I
IH
-5
+5
A
AC ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, 4.75V < V
CC
< 5.75V, -40C < T
A
< +85, RF and LO ports are driven from 50
sources, 0dBm < P
LO
<
+6dBm, P
RF
= -5dBm, 1700MHz < f
RF
< 2200MHz, 1400MHz < f
LO
< 2000MHz, f
IF
= 200MHz. Typical values are for T
A
= +25C
V
CC
= 5.0V, P
LO
= +3dBm, f
RF
= 1900MHz, f
LO
= 1700MHz, 200MHz IF.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
RF Frequency
f
RF
1700
2200
MHz
LO Frequency
f
LO
(Note 6)
1400
2000
MHz
IF Frequency
f
IF
50
350
MHz
Conversion Gain
G
C
(Note 3)
8.5
dB
Gain Variation Over Temperature
T
A
= -40C to +85C
0.0012
dB/C
Gain Variation from Nominal (3
)
0.45
dB
Input Compression Point
P
1dB
12.6
dBm
Two RF tones: -5dBm each at 1950MHz
and 1951MHz, LO: +3dBm at 1750MHz
24
Input Third-Order Intercept Point
(Note 3)
IIP3
Two RF tones: -5dBm each at 2200MHz
and 2201MHz, LO: +3dBm at 2000MHz
23
dBm
MAX9993
High-Linearity 1700MHz to 2200MHz Down-
Conversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________
3
AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, 4.75V < V
CC
< 5.75V, -40C < T
A
< +85, RF and LO ports are driven from 50
sources, 0dBm < P
LO
<
+6dBm, P
RF
= -5dBm, 1700MHz < f
RF
< 2200MHz, 1400MHz < f
LO
< 2000MHz, f
IF
= 200MHz. Typical values are for T
A
= +25C
V
CC
= 5.0V, P
LO
= +3dBm, f
RF
= 1900MHz, f
LO
= 1700MHz, 200MHz IF.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
IIP3 Variation Over Temperature
T
A
= -40C to +85C
0.5
dB
Noise Figure
NF
f
RF
= 1950MHz, f
LO
= 1750MHz,
measured single-side band
9.5
dB
Required LO Drive
P
LO
0
3
6
dBm
P
LO
= +3dBm
65
2
2
2 RF - 2 LO
P
RF
= -5dBm
f
RF
= 1950MHz
f
LO
= 1750MHz
f
SPUR
= 1850MHz
P
LO
= +6dBm
70
P
LO
= +3dBm
67
Spurious Response at IF
3
3
3 RF - 3 LO
P
RF
= -5dBm
f
RF
= 1950MHz
f
LO
= 1750MHz
f
SPUR
= 1816.66MHz
P
LO
= +6dBm
68
dBc
Maximum LO-to-RF Leakage
P
LO
= 0dBm to +6dBm,
f
LO
= 1400MHz to 2000MHz
-19
dBm
Maximum LO-to-IF Leakage
P
LO
= 0dBm to +6dBm,
f
LO
= 1400MHz to 2000MHz
-21
dBm
Minimum RF-to-IF Isolation
f
RF
= 1700MHz to 2200MHz
37
dB
Conversion Loss, LO to IF
P
LO
= +0dBm, inject -20dBm at 200MHz
into LO port, measure 200MHz at IF
28
dB
LO Switching Time
50% of LOSEL to IF settled to within
2 degrees
<50
ns
LO1-to-LO2 Isolation
(Note 4)
40
dB
RF Return Loss
19
dB
LO port selected
15
LO Return Loss
LO port unselected
14
dB
IF Return Loss
RF terminated, P
LO
= +3dBm (Note 5)
15
dB
Note 1: Guaranteed by design and characterization.
Note 2: All limits reflect losses of external components. Output measurements taken at IFOUT of the Typical Application Circuit.
Note 3: Production tested.
Note 4: Measured at IF port at IF frequency. f
LO1
and f
LO2
are offset by 1MHz, P
LO1
= P
LO2
= +3dBm.
Note 5: IF return loss can be optimized by external matching components.
Note 6: Operation outside this range is possible, but with degraded performance of some specifications.
MAX9993
High-Linearity 1700MHz to 2200MHz Down-
Conversion Mixer with LO Buffer/Switch
4
_______________________________________________________________________________________
Typical Operating Characteristics
(MAX9993 EV Kit, V
CC
= 5.0V, P
RF
= -5dBm, P
LO
= +3dBm, LO is low-side injected for a 200MHz IF, T
A
= +25C. For high-side LO
injection curves, LO frequency is beyond maximum specified range, and is shown for completeness.)
INPUT IP3 vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993-09
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
22
23
24
25
26
21
T
A
= +85
C
T
A
= +25
C
T
A
= -40
C
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
2 LO - 2 RF RESPONSE vs. RF FREQUENCY
HIGH-SIDE INJECTION
MAX9993-08
2 LO - 2 RF RESPONSE (dBc)
50
55
60
65
70
75
80
85
45
RF FREQUENCY (MHz)
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
T
A
= -40
C
T
A
= +25
C
T
A
= +85
C
P
RF
= -5dBm
2 RF - 2 LO RESPONSE vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993-07
2 RF- 2 LO RESPONSE (dBc)
50
55
60
65
70
75
80
85
45
RF FREQUENCY (MHz)
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
V
CC
= 5.25V
V
CC
= 4.75V, 5.0V
P
RF
= -5dBm
2 RF - 2 LO RESPONSE vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993-06
2 RF- 2 LO RESPONSE (dBc)
50
55
60
65
70
75
80
85
45
RF FREQUENCY (MHz)
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
P
LO
= +6dBm
P
LO
= +3dBm
P
LO
= 0dBm
P
RF
= -5dBm
2 RF - 2 LO RESPONSE vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993-05
2 RF- 2 LO RESPONSE (dBc)
50
55
60
65
70
75
80
85
45
RF FREQUENCY (MHz)
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
T
A
= +85
C
T
A
= -40
C
T
A
= +25
C
P
RF
= -5dBm
CONVERSION GAIN vs. RF FREQUENCY
HIGH-SIDE INJECTION
MAX9993-04
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
7
8
9
10
11
6
T
A
= +85
C
T
A
= +25
C T
A
= -40
C
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
CONVERSION GAIN vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993-03
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
7
8
9
10
11
6
V
CC
= 4.75V, 5.0V, 5.25V
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
CONVERSION GAIN vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993-02
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
7
8
9
10
11
6
P
LO
= 0dBm, +3dBm, +6dBm
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
CONVERSION GAIN vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993-01
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
7
8
9
10
11
6
T
A
= +85
C
T
A
= +25
C T
A
= -40
C
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
MAX9993
High-Linearity 1700MHz to 2200MHz Down-
Conversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________
5
MAX9993 toc18
LO SWITCH ISOLATION vs. RF FREQUENCY
LOW-SIDE INJECTION
LO SWITCH ISOLATION (dB)
35
36
37
38
39
40
41
42
43
44
34
RF FREQUENCY (MHz)
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
P
LO
= +6dBm
P
LO
= 0dBm, +3dBm
P
LO1
= P
LO2
f
LO
= 1MHz
LO SWITCH ISOLATION vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993 toc17
LO SWITCH ISOLATION (dB)
35
36
37
38
39
40
41
42
43
44
34
RF FREQUENCY (MHz)
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
T
A
= +25
C
T
A
= +85
C
T
A
= -40
C
P
LO1
= P
LO2
= +3dBm
f
LO
= 1MHz
MAX9993 toc16
INPUT P
1dB
(dBm)
11
12
13
14
15
10
INPUT P
1dB
vs. RF FREQUENCY
HIGH-SIDE INJECTION
RF FREQUENCY (MHz)
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
T
A
= -40
C
T
A
= +25
C
T
A
= +85
C
MAX9993 toc15
INPUT P
1dB
(dBm)
11
12
13
14
15
10
INPUT P
1dB
vs. RF FREQUENCY
LOW-SIDE INJECTION
RF FREQUENCY (MHz)
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
V
CC
= 4.75V
V
CC
= 5.0V
V
CC
= 5.25C
INPUT P
1dB
vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993 toc14
INPUT P
1dB
(dBm)
11
12
13
14
15
10
P
LO
= 0dBm
P
LO
= +3dBm, +6dBm
RF FREQUENCY (MHz)
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
INPUT P
1dB
vs. RF REQUENCY
LOW-SIDE INJECTION
MAX9993 toc13
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
2150
2100
2050
2000
1950
1900
1850
1800
1750
11
12
13
14
15
10
1700
2200
T
A
= -40
C
T
A
= +85
C
T
A
= +25
C
INPUT IP3 vs. RF FREQUENCY
HIGH-SIDE INJECTION
MAX9993-12
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
22
23
24
25
26
21
T
A
= +85
C
T
A
= +25
C
T
A
= -40
C
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
INPUT IP3 vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993-11
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
22
23
24
25
26
21
V
CC
= 5.25V
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
V
CC
= 5.0V
V
CC
= 4.75V
INPUT IP3 vs. RF FREQUENCY
LOW-SIDE INJECTION
MAX9993-10
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
22
23
24
25
26
21
P
LO
= +6dBm
P
LO
= +3dBm
P
LO
= 0dBm
2150
2100
2050
2000
1950
1900
1850
1800
1750
1700
2200
Typical Operating Characteristics (continued)
(MAX9993 EV Kit, V
CC
= 5.0V, P
RF
= -5dBm, P
LO
= +3dBm, LO is low-side injected for a 200MHz IF, T
A
= +25C. For high-side LO
injection curves, LO frequency is beyond maximum specified range, and is shown for completeness.)