MAX2022ETXD Ver la hoja de datos (PDF) - Maxim Integrated
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MAX2022ETXD
Maxim Integrated
MAX2022ETXD Datasheet PDF : 14 Pages
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High-Dynamic-Range, Direct Upconversion
1500MHz to 2500MHz Quadrature Modulator
Typical Operating Characteristics (continued)
(MAX2022 Typical Application Circuit, 50Ω LO input, R1 = 432Ω, R2 = 562Ω, R3 = 301Ω, VCC = +5V, PLO = 0dBm, VIFI = VIFQ =
109mVP-P differential, fIQ = 1MHz, I/Q differential inputs driven from a 100Ω DC-coupled source, common-mode input from 0V, TC =
+25°C, unless otherwise noted.)
LO LEAKAGE vs. PRF WITH
LO LEAKAGE NULLED AT SPECIFIC PRF
-68
-70
-72
-74
NULLED AT -10dBm
-76
-78
-80
-82
NULLED AT -14dBm,
-18dBm, -22dBm
-84
-86
-88 fLO = 1960MHz
-90
-40 -35 -30 -25 -20 -15 -10
OUTPUT POWER PRF (dBm)
LO LEAKAGE vs. fLO WITH
LO LEAKAGE NULLED AT SPECIFIC PRF
0
-10 fLO = 2140MHz, NULLED AT -10dBm PRF
-20
-30
-40
-50
-60
-70
-80
-90
2.00 2.05 2.10 2.15 2.20 2.25
LO FREQUENCY (GHz)
SIDEBAND SUPRESSION vs. PRF
70
LO LEAKAGE vs. PRF WITH
LO LEAKAGE NULLED AT SPECIFIC PRF
-68
-70 fLO = 2140Hz
-72
-74
-76
NULLED AT -10dBm
-78
-80
-82
NULLED AT -14dBm,
-18dBm, -22dBm
-84
-86
-88
-90
-40 -35 -30 -25 -20 -15 -10
OUTPUT POWER PRF (dBm)
LO LEAKAGE vs. DIFFERENTIAL
DC OFFSET ON Q-SIDE
-40
PRF = -18dBm, I-SIDE NULLED
-50
fLO = 2140MHz fLO = 1960MHz
-60
-70
-80
-15 -14 -13 -12 -11 -10 -9 -8
DC DIFFERENTIAL OFFSET ON Q-SIDE (mV)
RF PORT RETURN LOSS
vs. LO FREQUENCY
0
LO LEAKAGE vs. fLO WITH
LO LEAKAGE NULLED AT SPECIFIC PRF
0
-10
-20
-30
-40
-50
-60
-70
-80
-90 fLO = 1960MHz, NULLED AT -10dBm PRF
1.85 1.90 1.95 2.00 2.05 2.10
LO FREQUENCY (GHz)
SIDEBAND SUPRESSION vs. PRF
70
60
1.8MHz
50
40
30
9MHz
20
fBB1 = 1.8MHz, fBB2 = 9MHz, fLO = 1960MHz,
10 1.8MHz BASEBAND TONE NULLED AT
PRF = -20dBm
0
-30
-25
-20
-15
-10
MODULATOR POUT (dBm)
LO PORT RETURN LOSS
vs. LO FREQUENCY
0
60
50
40
1.8MHz
9MHz
30
20
fBB1 = 1.8MHz, fBB2 = 9MHz, fLO = 2140MHz,
10 1.8MHz BASEBAND TONE NULLED AT
PRF = -20dBm
0
-30
-25
-20
-15
-10
MODULATOR POUT (dBm)
-5
-10
VCC = 4.75V, 5.0V, 5.25V
-15
-20
1.5 1.7 1.9 2.1 2.3 2.5
LO FREQUENCY (GHz)
-5
-10
-15
-20
-25
-30
1.5
VCC = 4.75V, 5.0V, 5.25V
1.7 1.9 2.1 2.3 2.5
LO FREQUENCY (GHz)
_______________________________________________________________________________________ 7
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