MAX2114
DBS Direct Downconverter
_______________________________________________________________________________________ 3
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +4.75V to +5.25V, V
FB
= +2.4V, C
IOUT_
= C
QOUT_
= 10pF, f
FLCLK
= 2MHz, RFIN_ = unconnected, R
IOUT_
= R
QOUT_
= 10kΩ,
V
LOBUFSEL
= +0.5V, V
R
FBAND
= V
INSEL
= V
CPG1
= V
CPG2
= +2.4V, V
PLLIN+
= V
MOD+
= +1.3V, V
PLLIN-
= V
MOD-
= +1.1V, T
A
=
+25°C, unless otherwise noted. Typical values are at V
CC
= +5V, unless otherwise noted.)
AC ELECTRICAL CHARACTERISTICS
(IC driven single-ended with RFIN- AC-terminated in 75Ω to GND, V
CC
= +4.75V to +5.25V, V
IOUT_
= V
QOUT_
= 0.59Vp-p,
C
IOUT_
= C
QOUT_
= 10pF, f
FCLK
= 500kHz, R
IOUT_
= R
QOUT_
= 10kΩ, V
LOBUFSEL
= 0.5V, V
RFBAND
= V
INSEL
= V
CPG1
= V
CPG2
= +2.4V,
V
PLLIN+
= V
MOD+
= +1.3V, V
PLLIN-
= V
MOD-
= +1.1V, T
A
= +25°C, unless otherwise noted. Typical values are at V
CC
= +5V.)
V
CPG1
≤ 0.5V, V
CPG2
≤ 0.5V
V
CPG1
≤ 0.5V, V
CPG2
≥ 2.4V
CONDITIONS
-0.12 -0.1 -0.08
Charge-Pump Output Low
Measured at FB
-0.36 -0.3 -0.24
UNITSMIN TYP MAXSYMBOLPARAMETER
V
CPG1
≥ 2.4V, V
CPG2
≤ 0.5V
V
CPG1
≥ 2.4V, V
CPG2
≥ 2.4V
-0.72 -0.6 -0.48
mA
-2.16 -1.8 -1.44
V
GC_
= 1V to 4V -50 50I
GC_
Input Current µA
Charge-Pump Output Current
Matching Positive to Negative
%Measured at FB -5 5
Charge-Pump Output Leakage nAMeasured at FB -25 25
Offset Voltage (Note 1) mV
Differential Output Voltage
Swing
Vp-pR
L
= 2kΩ differential 1
Common-Mode Output Voltage
(Note 1)
V0.65 0.85
-50 50
Charge-Pump Output Current
Drive (Note 1)
µAMeasured at CP 100
ANALOG CONTROL INPUTS (GC1, GC2)
BASEBAND OUTPUTS (IOUT+, IOUT-, QOUT+, QOUT-)
P
RFIN_
= -25dBm 44.8
P
RFIN_
= -65dBm
f
LO
= 950MHz
f
LO
= 1550MHz
f
LO
= 2175MHz
-26
-29
-30
P
RFIN_
= -65dBm
per tone
f
LO
= 950MHz
f
LO
= 1550MHz
f
LO
= 2175MHz
V
GC1
= V
GC2
= +1V (max gain)
V
GC1
= V
GC2
= +4V (min gain)
2
P
RFIN_
= -40dBm,
signals within filter bandwidth
dBV
Output-Referred 1dB Compression
Point (Note 5)
P1
dBOUT
16.1
P
RFIN_
= -25dBm per tone,
f
LO
= 951MHz
dBm
RFIN_ Input Second-Order Intercept
(Note 4)
IP2
RFIN_
10.7
8.0
11.1
P
RFIN_
= -25dBm
per tone
dBm
RFIN_ Input Third-Order Intercept
Point (Note 3)
IP3
RFIN_
-68
Single
carrier
-25
dBm
RFIN_ Input Power for 0.59Vp-p
Baseband Levels
925 2175
Inferred by quadrature gain and
phase-error test
PARAMETER SYMBOL MIN TYP MAX UNITS
10.6
f
RFIN
_
= 1550MHz,
V
GC1
= 1V, V
GC2
adjusted 0.59Vp-p
baseband level
dBNoise Figure NF
CONDITIONS
MHzRFIN_ Input Frequency Range f
RFIN_
(14 páginas)
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