LMK04826B, LMK04828B
SNAS605 AP –MARCH 2013–REVISED JUNE 2013
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Electrical Characteristics (continued)
(3.15 V < VCC < 3.45 V, -40 °C < TA < 85 °C. Typical values at VCC = 3.3 V, TA = 25 °C, at the Recommended Operating
Conditions and are not assured.)
Symbol
Parameter
Conditions
Internal VCO Specifications
VCO0
Min
Typ
Max
Units
1840
2440
2370
2920
1970
2505
2630
3080
LMK04826 VCO Tuning Range
LMK04828 VCO Tuning Range
LMK04826 Fine Tuning Sensitivity
MHz
MHz
VCO1
fVCO
VCO0
VCO1
LMK04826 VCO0
LMK04826 VCO1
LMK04828 VCO0 at 2457.6 MHz
LMK04828 VCO1 at 2949.12 MHz
11 to 19
8 to 11
MHz/V
MHz/V
KVCO
17 to 27
17 to 23
LMK04828 Fine Tuning Sensitivity
Allowable Temperature Drift for
After programming for lock, no changes
to output configuration are permitted to
assure continuous lock
|ΔTCL
|
Continuous Lock
125
°C
(1)
(1) Maximum Allowable Temperature Drift for Continuous Lock is how far the temperature can drift in either direction from the value it was
at the time that the 0x168 register was last programmed with PLL2_FCAL_DIS = 0, and still have the part stay in lock. The action of
programming the 0x168 register, even to the same value, activates a frequency calibration routine. This implies the part will work over
the entire frequency range, but if the temperature drifts more than the maximum allowable drift for continuous lock, then it will be
necessary to reload the appropriate register to ensure it stays in lock. Regardless of what temperature the part was initially programmed
at, the temperature can never drift outside the frequency range of -40 °C to 85 °C without violating specifications.
14
ELECTRICAL SPECIFICATIONS
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