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MAX2121ETI+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
MAX2121
Complete Direct-Conversion L-Band Tuner
4
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2121 Evaluation Kit: V
CC
= +3.13V to +3.47V, T
A
= -40°C to +85°C, default register settings except BBG[3:0] = 1111. Typical
values measured at V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER CONDITIONS MIN TYP MAX UNITS
VOLTAGE-CONTROLLED OSCILLATOR AND LO GENERATION
Guaranteed LO Frequency Range 925 2175 MHz
f
OFFSET
= 10kHz -97
f
OFFSET
= 100kHz -100
LO Phase Noise
f
OFFSET
= 1MHz -122
dBc/Hz
XTAL/REFERENCE OSCILLATOR INPUT AND OUTPUT BUFFER
XTAL Oscillator Frequency
Range f
XTAL
Parallel-resonance-mode crystal (Note 7) 12 30 MHz
Input Overdrive Level AC-coupled sine-wave input 0.5 1 2.0 V
P-P
XTAL Output-Buffer Divider
Range
1 8
XTAL Output Voltage Swing 12MHz to 30MHz, C
LOAD
= 10pF 1 1.5 2 V
P-P
XTAL Output Duty Cycle 50 %
Note 1: Min/max values are production tested at T
A
= +25°C. Min/max limits at T
A
= -40°C and T
A
= +85°C are guaranteed by
design and characterization.
Note 2: Guaranteed by design and characterization at T
A
= +25°C.
Note 3: Input gain range specifications met over this band.
Note 4: In-band IIP3 test conditions: GC1 set to provide the nominal baseband output drive when mixing down a -23dBm tone at
2175MHz to 5MHz baseband (f
LO
= 2170MHz). Baseband gain is set to its default value (BBG[3:0] = 1011). Two tones at
-26dBm each are applied at 2174MHz and 2175MHz. The IM3 tone at 3MHz is measured at baseband, but is referred to the
RF input.
Note 5: Out-of-band IIP3 test conditions: GC1 set to provide nominal baseband output drive when mixing down a -23dBm tone at
2175MHz to 5MHz baseband (f
LO
= 2170MHz). Baseband gain is set to its default value (BBG[3:0] = 1011). Two tones at
-20dBm each are applied at 1919MHz and 1663MHz. The IM3 tone at 5MHz is measured at baseband, but is referred to the
RF input.
Note 6: Input IP2 test conditions: GC1 set to provide nominal baseband output drive when mixing down a -23dBm tone at 2175MHz
to 5MHz baseband (f
LO
= 2170MHz). Baseband gain is set to its default value (BBG[3:0] = 1011). Two tones at -20dBm
each are applied at 925MHz and 1250MHz. The IM2 tone at 5MHz is measured at baseband, but is referred to the RF input.
Note 7: See Table 16 for crystal ESR requirements.
MAX2121
Complete Direct-Conversion L-Band Tuner
Typical Operating Characteristics
(MAX2121 Evaluation Kit: V
CC
= +3.3V, T
A
= +25°C, baseband output frequency = 5MHz, V
GC1
= +1.2V, default register settings
except BBG[3:0] = 1011, unless otherwise noted.)
5
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX2121 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
3.43.33.2
130
135
140
145
150
155
160
165
170
175
125
3.1 3.5
T
A
= +85
°
C
T
A
= +25
°
C
T
A
= -40
°
C
STANDBY SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX2121 toc02
SUPPLY VOLTAGE (V)
STANDBY SUPPLY CURRENT (mA)
3.43.33.2
1.5
2.0
2.5
3.0
1.0
3.1 3.5
T
A
= +85
°
C
T
A
= -40
°
C
HD3 vs. V
OUT
MAX2121 toc03
V
OUT
(V
P-P
)
BASEBAND 3RD-ORDER HARMONIC (dBc)
2.52.01.5
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-60
1.0 3.0
QUADRATURE PHASE ERROR
vs. LO FREQUENCY
MAX2121 toc04
LO FREQUENCY (MHz)
QUADRATURE PHASE ERROR (DEG)
1900165014001150
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
900 2150
f
BASEBAND
= 50MHz
T
A
= +85
°
C
T
A
= +25
°
C
T
A
= -40
°
C
QUADRATURE MAGNITUDE MATCHING
vs. LO FREQUENCY
MAX2121 toc05
LO FREQUENCY (MHz)
QUADRATURE MAGNITUDE MATCHING (dB)
1900165014001150
0.2
0.4
0.6
0.8
1.0
0
900 2150
f
BASEBAND
= 50MHz
T
A
= +85
°
C
T
A
= +25
°
C
T
A
= -40
°
C
QUADRATURE PHASE ERROR
vs. BASEBAND FREQUENCY
MAX2121 toc06
BASEBAND FREQUENCY (MHz)
QUADRATURE PHASE ERROR (DEG)
101
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
0.1 100
f
LO
= 1425MHz
T
A
= +85
°
C
T
A
= +25
°
C
T
A
= -40
°
C
QUADRATURE MAGNITUDE MATCHING
vs. BASEBAND FREQUENCY
MAX2121 toc07
BASEBAND FREQUENCY (MHz)
QUADRATURE MAGNITUDE MATCHING (dB)
101
0.2
0.4
0.6
0.8
1.0
0
0.1 100
f
LO
= 1425MHz
T
A
= +85°C
T
A
= +25
°
C
T
A
= -40°C
BASEBAND FILTER FREQUENCY RESPONSE
MAX2121 toc08
BASEBAND FREQUENCY (MHz)
BASEBAND OUTPUT LEVEL (dB)
400300200100
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-65
0500
BASEBAND FILTER FREQUENCY RESPONSE
MAX2121 toc09
BASEBAND FREQUENCY (MHz)
BASEBAND OUTPUT LEVEL (dB)
125100755025
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
-10
0150
T
A
= +25
°
C
MAX2121
Complete Direct-Conversion L-Band Tuner
Typical Operating Characteristics (continued)
(MAX2121 Evaluation Kit: V
CC
= +3.3V, T
A
= +25°C, baseband output frequency = 5MHz, V
GC1
= +1.2V, default register settings
except BBG[3:0] = 1011, unless otherwise noted.)
6
BASEBAND FILTER 3dB FREQUENCY
vs. TEMPERATURE
MAX2121 toc10
TEMPERATURE (°C)
BASEBAND GAIN ERROR AT f-3dB (dB)
8060-20 0 20 40
-0.75
-0.50
-0.25
0
0.25
0.50
0.75
1.00
-1.00
-40
NORMALIZED AT T
A
= +25°C
BASEBAND FILTER HIGHPASS
FREQUENCY RESPONSE
MAX2121 toc11
BASEBAND FREQUENCY (Hz)
BASEBAND OUTPUT LEVEL (dB)
1000
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
-10
100 10,000
VOLTAGE GAIN vs. V
GC1
MAX2121 toc12
V
GC1
(V)
VOLTAGE GAIN (dB)
2.52.00.5 1.0 1.5
10
20
30
40
50
60
70
80
0
0 3.0
BBG[3:0] = 1111
NOISE FIGURE vs. LO FREQUENCY
(T
A
= +25°C)
MAX2121 toc13
LO FREQUENCY (MHz)
NOISE FIGURE (dB)
190016501150 1400
7.5
8.0
8.5
9.0
10.0
9.5
10.5
11.0
7.0
900 2150
ADJUST BBG[3:0] FOR 1V
P-P
BASEBAND
OUTPUT WITH PIN = -75dBm AND V
GC1
= 0.5V
10dB BACKED OFF GAIN
NOISE FIGURE vs. INPUT POWER
MAX2121 toc14
INPUT POWER (dBm)
NOISE FIGURE (dB)
-35-45-55-65
10
15
20
25
30
35
5
-75
ADJUST BBG[3:0] for 1V
P-P
BASEBAND OUTPUT WITH PIN = -75dBm
AND V
GC1
= -0.5V, f
LO
= 1500MHz
OUT-OF-BAND IIP3 vs. INPUT POWER
MAX2121 toc15
INPUT POWER (dBm)
OUT-OF-BAND IIP3 (dBm)
-5-15-25-35-45-55-65
-20
-10
0
10
20
30
-30
-75
SEE NOTE 5 ON PAGE 4 FOR CONDITIONS
IN-BAND IIP3 vs. INPUT POWER
MAX2121 toc16
INPUT POWER (dBm)
IN-BAND IIP3 (dBm)
-5-15-65 -55 -45 -35 -25
-50
-40
-30
-20
-10
0
10
20
-60
-75
SEE NOTE 4 ON PAGE 4 FOR CONDITIONS
IIP2 vs. INPUT POWER
MAX2121 toc17
INPUT POWER (dBm)
IIP2 (dBm)
-5-15-35 -25-55 -45-65
-5
0
5
10
15
20
25
30
35
40
-10
-75
SEE NOTE 6 ON PAGE 4
FOR CONDITIONS
INPUT RETURN LOSS vs. FREQUENCY
MAX2121 toc18
FREQUENCY (MHz)
INPUT RETURN LOSS (dB)
202518001350 15751125
-20
-15
-10
-5
0
-25
900 2250
V
GC1
= 2.7V
V
GC1
= 0.5V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

MAX2121ETI+

Mfr. #:
Buy MAX2121ETI+
Manufacturer:
Maxim Integrated
Description:
Tuners Direct-Conversion L-Band Tuner
Lifecycle:
New from this manufacturer.
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