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MAX2870
23.5MHz to 6000MHz Fractional/
Integer-N Synthesizer/VCO
ABSOLUTE MAXIMUM RATINGS
V CC_ to GND_ .......................................................-0.3V to +3.9V
All Other Pins to GND_.............................. -0.3V to V CC_ + 0.3V
Continuous Power Dissipation (T A = +70 N C)
TQFN-EP Multilayer Board
(derate 34.5mW/ N C above +70 N C) .........................2758.6mW
Junction Temperature .....................................................+150 N C
Operating Temperature Range .......................... -40 N C to +85 N C
Storage Temperature Range............................ -65 N C to +150 N C
Lead Temperature (soldering, 10s) .............................. +300 N C
Soldering temperature (reflow) .......................................+260 N C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TQFN
Junction-to-Ambient Thermal Resistance ( B JA ) ..........29 N C/W
Junction-to-Case Thermal Resistance ( B JC ) ..................1.7 N C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial .
DC ELECTRICAL CHARACTERISTICS
(Measured using MAX2870 EV Kit. V CC_ = 3V to 3.6V, V GND_ = 0V, f REF_IN = 50MHz, f PFD = 25MHz, T A = -40 N C to +85 N C. Typical
values measured at V CC_ = 3.3V; T A = +25 N C; register settings 00780000,20000141,01005E42,00000013,610F423C,01400005;
unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
RFOUT_ Current Consumption
I RFOUT_ , minimum output power, single channel
I RFOUT_ , maximum output power, single channel
3
3.3
8.5
25
3.6
29
V
mA
Supply Current
Both channels
enabled,
maximum
output power
Total, including RFOUT, both
channel (Note 3)
Each output divide-by-2
I CCVCO + I CCRF (Note 3)
Low-power sleep mode
144
10
75
180
15
95
1
mA
AC ELECTRICAL CHARACTERISTICS
(Measured using MAX2870 EV Kit. V CC_ = 3V to 3.6V, V GND_ = 0V, f REF_IN = 50MHz, f PFD = 25MHz, f RFOUT_ = 6000MHz,
T A = -40 N C to +85 N C. Typical values measured at V CC_ = 3.3V, T A = +25 N C, register settings 00780000,20000141,01005E42,00000
013,610F423C,01400005; unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
REFERENCE OSCILLATOR INPUT (REF_IN)
REF_IN Input Frequency Range
REF_IN Input Sensitivity
REF_IN Input Capacitance
REF_IN Input Current
10
0.7
-60
2
200
V CC_
+60
MHz
V PP
pF
F A
PHASE DETECTOR
Phase Detector Frequency
Maxim Integrated
Integer-N mode
Fractional-N mode
105
50
MHz
2
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