Datasheet

Note 2: Production tested at T
A
= +25°C. Cold and hot are guaranteed by design and characterization.
Note 3: Measured at 100kHz offset with 50MHz Bliley NV108C1954 OCVCXO with 500kHz loop bandwidth. Registers 0 through 4
settings: 303C0000, 00000009, 0F008052, 000025C3, 00000094.
Note 4: 1/f noise contribution to the in-band noise is computed by using 1/f
NOISE
= PN - 10log(10kHz/f
OFFSET
)
- 20log(f
RF
/1GHz). Registers 0 through 4 settings: 303C0000, 00000009, 0F008052, 000025C3, 00000094.
Note 5: f
REF
= 50MHz; f
PFD
= 50MHz; offset frequency = 10kHz; VCO frequency = 6GHz, N = 120; loop BW = 100kHz,
CP[3:0] = 1111; integer mode. Registers 0 through 4 settings 303C0000, 00000009, 0F008052, 000025C3, 00000094.
Note 6: f
REF
= 50MHz; f
PFD
= 50MHz; VCO frequency = 6GHz; N = 120; loop BW = 100kHz, CP[3:0] = 1111; integer mode.
Registers 0 through 4 settings 303C0000, 00000009, 0F008052, 000025C3, 00000094.
(V
CC_
= 3V to 3.6V, V
GND_
= 0V, T
A
= -40°C to +85°C. Typical values at V
CC_
= 3.3V, T
A
= +25°C.) (Note 2)
(Measured using the MAX2880 Evaluation Kit. V
CC_
= 3.3V, V
GND_
= 0V, V
CP
= 5.0V, CP[3:0]= 1111, f
RFINN
= 6GHz, f
REF
= 50MHz,
f
PFD
= 50MHz, T
A
= +25°C, unless otherwise noted. See Table 1 and Table 2).
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CLK Clock Period t
CP
Guaranteed by SCL pulse-width
low and high
50 ns
CLK Pulse-Width Low t
CL
25 ns
CLK Pulse-Width High t
CH
25 ns
LE Setup Time t
LES
20 ns
LE Hold Time t
LEH
10 ns
LE Minimum Pulse-Width High t
LEW
20 ns
Data Setup Time t
DS
25 ns
Data Hold Time t
DH
25 ns
MUX Setup Time t
MS
10 ns
MUX Hold Time t
MH
10 ns
-235
-230
-225
-220
-215
0 3 6 9 12 15
NORMALIZED IN-BAND NOISE FLOOR (dBc/Hz)
CP CURRENT CODE
NORMALIZED IN-BAND NOISE FLOOR
vs. CP CURRENT CODE
toc02
INTEGER-N
FRAC-N LOW NOISE
OFFSET = 100kHz
FRAC-N LOW SPUR
-235
-230
-225
-220
-215
0.5 1 1.5 2 2.5 3 3.5 4
NORMALIZED IN-BAND NOISE FLOOR (dBc/Hz)
V
TUNE
(V)
NORMALIZED IN-BAND NOISE FLOOR
vs. TUNE VOLTAGE
toc03
INTEGER-N
FRAC-N LOW NOISE
OFFSET = 100kHz
FRAC-N LOW SPUR
-235
-230
-225
-220
-215
-40 -15 10 35 60 85
NORMALIZED IN-BAND NOISE FLOOR (dBc/Hz)
TEMPERATURE (°C)
NORMALIZED IN-BAND NOISE FLOOR
vs. TEMPERATURE
toc01
INTEGER-N
FRAC-N LOW NOISE
OFFSET = 100kHz
FRAC-N LOW SPUR
MAX2880 250MHz to 12.4GHz, High-Performance,
Fractional/Integer-N PLL
www.maximintegrated.com
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SPI Timing Characteristics
Typical Operating Characteristics