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PDF NJU6229 Data sheet ( Hoja de datos )
| Número de pieza | NJU6229 | |
| Descripción | 32.768kHz output Tuning fork Quartz Crystal Oscillator IC | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJU6229 Series
Preliminary
32.768kHz output Tuning fork Quartz Crystal Oscillator IC
GENERAL DESCRIPTION
The NJU6229 is a CMOS oscillator IC which is designed for
32.768kHz tuning fork quartz unit.
The NJU6229 is ultra-small IC realizing to micro size oscillator
unit. The oscillation current is ultra-low power consumption
1.00μA(TYP). This is applicable for the portable devices requiring
small sized and low power XO module.
The operating voltage is from 1.62 to 5.50V. The 3-state output
buffer is C-MOS compatible of fan-out.
PACKAGE OUTLINE
NJU6229XC-V
FEATURES
Oscillation Frequency
32.768kHz
Wide Operating Voltage
1.62 to 5.50V
Low power consumption
1.00μA (VDD=1.80V, No load)
Output Disable Function
3-State Output Buffer
Variable Pull-up Resistance on-Die
Oscillation Capacitors Cg and Cg on-Die
Package Outline
Die/Wafer
C-MOS Technology
BLOCK DIAGRAM
VDD
VSS
Regulator
XTO
Rf
XTI
Cg
Level
Shifter
Cd
3-State
Buffer
FOUT
CONT
OSC
Detector
2014/10/29 ( 1 / 7 )
1 page  
NJU6229 Series
Preliminary
PARAMETER
SYMBOL
CONDITIONS
(VDD=1.62 to 5.50V, VSS=0V, Ta=+25°C)
MIN TYP MAX UNIT
Feedback Resistance
Rf
24 M
Internal Capacitor
Cg fosc=32.768kHz
Cd fosc=32.768kHz
7 pF
8.5 pF
Output Signal
Symmetry
SYM
CL=15pF, @VDD/2
45 50 55 %
Output Signal Rise
Time
tr
CL=15pF 0.1VDD to 0.9VDD
500 ns
Output Signal Fall
Time
Output Disable time
Output Enable Time
Oscillation Start up
Time
tf
tPOZ
tPZO
TOSC
CL=15pF 0.9VDD to 0.1VDD
CL=15pF, RL=1kΩ
CL=15pF
500 ns
500 ns
50 µs
150 500 ms
Note3) The oscillation frequency range has used NJRC’s standard crystal for measurement. However it is not
guaranteed. (Refer to EXAMPLE OF CRYSTAL PARAMETERS FOR MEASUREMENT CIRCUITS)
(1)Output Signal
5
4
3
VDD(V) 2
1
tOSC
0
-1
0
50 100 150 200 250 300 Time(ms)
2014/10/29 ( 5 / 7 )
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet NJU6229.PDF ] | |
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