MAX2106 Datasheet, PDF (4/10 Pages) Maxim Integrated Products – DBS Direct Downconverter

DBS Direct Downconverter
AC ELECTRICAL CHARACTERISTICS (continued)
(R_FIN+ IC driven single-ended with RFIN- AC-terminated in 75Ω to GND, V_CC = +4.75V to +5.25V, VIOUT_ = VQOUT_ = 0.59Vp-p,
C_{IOUT_} = C_{QOUT_} = 10pF, f_LCLK = 2MHz, RIOUT_ = RQOUT_ = 10kΩ, V_LOBUFSEL = 0.5V, V_RFBAND = VINSEL = VCPG1 = VCPG2 = +2.4V,
VPLLIN+ = VMOD+ = +1.3V, VPLLIN- = VMOD- = +1.1V, T_A = +25°C, unless otherwise noted. Typical values are at V_CC = +5V.)
PARAMETER
SYMBOL
CONDITIONS
R_FIN+ Return Loss (Note 6)
f_{RFIN_} = 925MHz, Z_SOURCE = 75Ω
f_{RFIN_} = 2175MHz, Z_SOURCE = 75Ω
LO 2nd Harmonic Rejection (Note 7)
Average level of VIOUT_, VQOUT_
LO Half Harmonic Rejection (Note 8)
Average level of VIOUT_, VQOUT_
LO Leakage Power (Notes 6, 9)
Measured at R_FIN+
RFOUT PORT (LOOPTHROUGH)
f = 925MHz
RFIN+ to RFOUT Gain (Note 10)
f = 1550MHz
f = 2175MHz
RFOUT Output Third-Order Intercept
Point (Note 10)
f = 925MHz
f = 1550MHz
f = 2175MHz
f = 925MHz
RFOUT Noise Figure (Note 10)
f = 1550MHz
f = 2175MHz
RFOUT Return Loss (Notes 6, 10)
BASEBAND CIRCUITS
925MHz < f < 2175MHz, Z_LOAD = 75Ω
Output Real Impedance (Note 1)
IOUT_, QOUT_
MIN TYP MAX UNITS
+13
dB
+14
32
dB
41.5
dB
-66
dBm
0.5
1.0
dB
2.0
9
7
dBm
5
12.5
11
dB
11
12
dB
50
Ω
Baseband Highpass -3dB Frequency
(Note 1)
C_{IDC_} = C_{QDC_} = 0.22µF
750
Hz
LPF -3dB Cutoff-Frequency Range
(Note 1)
Controlled by FLCLK signal
8
33
MHz
Baseband Frequency Response
(Note 1)
LPF -3dB Cutoff-Frequency
Accuracy (Note 1)
Ratio of In-Filter-Band to Out-of-Filter-
Band Noise
Deviation from ideal 7th order,
Butterworth, up to 0.7 × f_C
f_FLCLK = 0.5MHz, f_C = 8MHz
f_FLCLK = 1.25MHz, f_C = 19.3MHz
f_FLCLK = 2.0625MHz, f_C = 31.4MHz
f_{IN_BAND} = 100Hz to 22.5MHz,
f_{OUT_BAND} = 67.5MHz to 112.5MHz
-0.5
-5.5
-10
10
23
0.5
dB
5.5
10
%
10
dB
Quadrature Gain Error
Includes effects from baseband filters,
measured at 125kHz baseband
1.2
dB
Quadrature Phase Error
Includes effects from baseband filters,
measured at 125kHz baseband
4 degrees
4 _______________________________________________________________________________________