JN5148 NXP Semiconductors, JN5148 Datasheet - Page 74

• Manufacturer Part Number: JN5148
• Description: The JN5148 is an ultra low power, high performance MCU combined with an IEEE802
• Manufacturer: NXP Semiconductors

22.3.12 32kHz Crystal Oscillator
VDD = 2.0 to 3.6V, -40 to +85ºC
22.3.13 32MHz Crystal Oscillator
VDD = 2.0 to 3.6V, -40 to +85ºC
74
Current consumption of cell
and counter logic
Start – up time
Input capacitance
Transconductance
External Capacitors
(CL=9pF)
Amplitude at Xout
Current consumption
Start – up time
Input capacitance
Transconductance
DC voltages, XTALIN /
XTALOUT
External Capacitors
(CL=9pF)
Amplitude detect threshold
Parameter
Parameter
390/425
3.65
Min
Min
300
JN-DS-JN5148-001 1v7
425/465
Vdd-0.2
0.84
4.30
Typ
Typ
375
320
1.5
0.8
1.4
1.4
17
15
15
470/520
Max
Max
5.16
450
mVp-p
mA/V
uA/V
Vp-p
Unit
Unit
mV
ms
µA
pF
pF
µA
pF
pF
s
© NXP Laboratories UK 2011
This is sensitive to the ESR
of the crystal,Vdd and total
capacitance at each pin
Assuming xtal with ESR of
less than 40kohms and
CL= 9pF External caps =
15pF
(Vdd/2mV pk-pk) see
Appendix B
Bondpad and package
Total external capacitance
needs to be 2*CL, allowing
for stray capacitance from
chip, package and PCB
Excluding bandgap ref.
Assuming xtal with ESR of
less than 40ohms and CL=
9pF External caps = 15pF
Bondpad and package
Total external capacitance
needs to be 2*CL, allowing
for stray capacitance from
chip, package and PCB
Threshold detection
accessible via API
see Appendix B
Notes
Notes