MAX2309 데이터 시트보기 (PDF) - Maxim Integrated
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MAX2309 Datasheet PDF : 20 Pages
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CDMA IF VGAs and I/Q Demodulators
with VCO and Synthesizer
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2306/MAX2308/MAX2309 EV kit, VCC = +2.75V, registers set to default power-up states except M1 = M2 = 306, R1 = R2 = 16,
fIN = 183.7MHz, fREF = 19.2MHz, 0.6Vp-p synthesizer locked with passive 3rd-order lead-lag loop filter, SHDN = high, VGC set for
+35dB voltage gain, differential output load = 10kΩ, all power levels referred to 50Ω, TA = +25°C, unless otherwise noted.)
PARAMETER
REF Maximum Divide Ratio
Minimum Phase Detector
Comparison Frequency
Maximum Phase Detector
Comparison Frequency
Phase Noise
TURBO LOCK
Charge-Pump Source/Sink
Current
Charge-Pump Source/Sink
Matching
SYMBOL
R1, R2
(Note 5)
CONDITIONS
(Note 5)
1kHz offset, TA = -40°C to +85°C
12.5kHz offset, TA = -40°C to +85°C
30kHz offset, TA = -40°C to +85°C
120kHz offset, TA = -40°C to +85°C
900kHz offset, TA = -40°C to +85°C
Acquisition, CPX = XX, TC =1
Locked, CPX = 00
Locked, CPX = 01
Locked, CPX = 10
Locked, CPX = 11
Locked, all values of CPX,
0.5V < VCP < VCC - 0.5V
MIN
2047
TYP
MAX UNITS
20
kHz
1500
-79.6
-94.6
-105
-115.3
-125
kHz
dBc/Hz
1480 2100 2650
105
150
190
150
210
265
µA
210
300
380
300
425
530
0.2
10
%
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
FM_IQ and FM_I modes are not available on MAX2309.
Recommended operating frequency range. Contact factory for operating frequency outside this range.
f1 = 183.7MHz, f2 = 183.71MHz, Pf1 = Pf2 = -15dBm.
f1 = 183.7MHz, f2 = 183.71MHz, Pf1 = Pf2 = -50dBm.
Guaranteed by design.
Small-signal gain at 200kHz below the LO frequency will be reduced by less than 0.25dB when an interfering signal at
1.25MHz below the LO frequency is applied at the specified level.
f1 = 183.7MHz, f2 = 183.71MHz, Pf1 = Pf2 = -23dBm.
f1 = 183.7MHz, f2 = 183.71MHz, Pf1 = Pf2 = -55dBm.
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