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Complete SDARS Receiver
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2140 EV kit, current drawn at VOUTANT, I VOUTANT = 150mA max, V CC = 3.1V to 3.6V, VINANT = 3.1V to 5.3V, f RF = 2320MHz
to 2345MHz, f LO = 2076MHz, T A = -40°C to +85°C. Typical values are at V CC = VINANT = 3.3V, f RF = 2338MHz, T A = +25°C, unless
otherwise noted.) (Note 2)
Interstage (IF) 259MHz SAW filter specification: insertion loss = 19dB max, 9.3MHz to 12MHz from center attenuation = 24dB min,
beyond 12MHz from center attenuation = 40dB min.
PARAMETER
IF AGC Gain-Control Range
SYMBOL
IFAGC_
Rge
(Note 4)
CONDITIONS
MIN
47
TYP
MAX
64
UNITS
dB
INTERNAL BASEBAND LOWPASS FILTERS
LPF In-Band Ripple
LPFA_rip
From 0 to 6.3MHz with respect to the
amplitude at 100kHz
0.7
dB
LPF Out-of-Band Rejection
(Note 4)
LPFrej
LPFrej
At 10.25MHz with respect to the amplitude
at 2MHz
At 16MHz with respect to the amplitude at
2MHz
14
47
21
51
dB
INTERNAL OUTPUT STAGE
Gain Increase
Maximum I/QOUT± Pin Loading
BB_DG
IQ_load
From bit HPF = 0 to HPF = 1
Per each of the four pins
4
10//10
dB
k ? //pF
FREQUENCY GENERATION: VCO AND PLL
VCO Frequency Range
VCO Tuning Gain
VCO_
Range
VCO_Gain
Over V CHP range (Note 4)
(Note 4)
1861
2079
240
MHz
MHz/V
At 1kHz within PLL band
-79
Synthesized VCO Phase Noise
VCO_PN
At 10kHz outside PLL band
-80
dBc/Hz
At 100kHz outside PLL band
-101
Synthesized VCO Phase-Noise
Jitter
Charge-Pump Voltage Range
Charge-Pump Current
Pin CHP Leakage Current
PLL Reference Division Ratio
Synthesized VCO Smallest
Fractional Step
VCO_jit
V CHP
I CHP
CHP_leak
PLLref
PLLstep
Integrated from 100Hz to 100kHz,
LO frequency = 2079MHz
Bit CHP = 0
Bit CHP = 1
Across V CHP range
Programmable through I 2 C
0.40
1
1.2
0.6
1.2
5
23
2.75
2
Deg RMS
V
mA
nA
Hz
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