Rainbow Electronics MAX2104 - Manual (Page 4)

MAX2104
Direct-Conversion Tuner IC for
Digital DBS Applications
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (continued)
(V CC = 4.75V to 5.25V, V IOUT_ = V QOUT_ = 0.59V P-P , C IOUT_ = C QOUT_ = 10pF, f FLCLK = 2MHz, R IOUT_ = R QOUT_ = 10k Ω,
V FDOUB = V INSEL = V CPG1 = V CPG2 = 2.4V, V PLLIN+ = V MOD+ = 1.3V, V PLLIN- = V MOD- = 1.1V, T A = +25°C. Typical values are at
V CC = 5.0V and T A = +25°C, unless otherwise noted.)
15 f = 925MHz
dB RFOUT Noise Figure (Note 11)
4
7
9 f = 925MHz
dBm
RFOUT Output Third-Order
Intercept Point (Note 11)
1.8 f = 1550MHz
2.5 f = 2175MHz
0.5 f = 925MHz
dB RFIN_ to RFOUT Gain (Note 11)
Includes effects from baseband filters,
measured at 125kHz baseband
4 degrees Quadrature Phase Error
Includes effects from baseband filters,
measured at 125kHz baseband
1.2 dB Quadrature Gain Error
f FLCLK = 2.0625MHz, f C = 31.4MHz
f FLCLK = 1.25MHz, f C = 19.3MHz
f FLCLK = 0.5MHz, f C = 8MHz
-0.5 +0.5
Deviation from ideal 7th order, Butterworth,
up to 0.7 x f
C
dB
Baseband Frequency Response
(Note 1)
750 C IDC_ = C QDC_ = 0.22µF Hz
Baseband Highpass Frequency
(Note 1)
19
f IN_BAND = 100Hz to 22.5MHz,
f OUT_BAND = 67.5MHz to 112.5MHz
dB
Ratio of In-Filter-Band
to Out-of-Filter-Band Noise
PARAMETER SYMBOL MIN TYP MAX UNITS
-10 +10
%
LPF -3dB Cutoff-Frequency
Accuracy (Note 1)
-10 +10
-5.5 +5.5
CONDITIONS
8 33 Controlled by FLCLK signal MHz
LPF -3dB Cutoff-Frequency Range
(Note 1)
8 925MHz < f < 2175MHz dB RFOUT Return Loss (Notes 1, 11)
11.5 f = 2175MHz
12 f = 1550MHz
f = 2175MHz
f = 1550MHz
50 IOUT_, QOUT_ Ω Output Real Impedance (Note 1)
LO Leakage Power (Notes 7, 10) -66 dBm Measured at RFIN_
RFOUT PORT (LOOPTHROUGH)
BASEBAND CIRCUITS