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PDF XC25BS3 Data sheet ( Hoja de datos )
| Número de pieza | XC25BS3 | |
| Descripción | CMOS Low Power Consumption | |
| Fabricantes | Torex Semiconductor | |
| Logotipo |  |
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◆CMOS Low Power Consumption
◆Input Frequency : 14kHz ~ 35MHz
◆Divider Ratio
: 1~ 2047 Divisions
(Laser Trimming)
◆Multiplier Ratio : 20 ~ 2047 Multiplications
(Laser Trimming)
◆Comparative Frequency
: 14kHz ~ 500kHz
◆Output Frequency : 9MHz ~ 80MHz
■APPLICATIONS
●Crystal oscillation modules
●Microcontroller
●PDAs
●Portable audio systems
●Various system clocks
■GENERAL DESCRIPTION
The XC25BS3 series are high frequency, low power
consumption PLL clock generator ICs with built-in crystal
oscillator circuit, divider circuit & multiplier PLL circuit.
Laser trimming gives the option of being able to select from
divider ratios (M) of 1 to 2047 and multiplier ratio (N) of 20 to
2047. Output frequency (Q0) is equal to reference oscillation
(fCLKin) multiplied by N/M, within a range of 9MHz to 80MHz.
Q1 output is selectable from input reference frequency (f0),
Ground (GND), PLL output frequency/2 (Q0/2), and
comparative frequency/2 (f0/M/2). Reference oscillation can
input 14kHz to 35MHz of reference clock. Further, comparative
frequency, within a range of 14kHz to 500kHz, can be obtained
by dividing the reference oscillation. By halting oscillation via
the CE pin, consumption current can be controlled. Output will
be one of high impedance.
■FEATURES
Output Frequency
: 9MHz ~ 80MHz (Q0=fCLKin×N/M)
Reference Oscillation : 14kHz ~ 35MHz
(fCLKin)
Divider Ratio (M)
: Selectable from divisions of 1 ~ 2047
Multiplier Ratio (N)
: Selectable from multiplications
of 20 ~ 2047
Output
: 3-State
Q1 output selectable from
reference oscillation, GND, PLL
output frequency/2, comparative
frequency/2.
Operating Voltage Range: 2.97V ~ 5.5V
Low Power Consumption: CMOS (stand-by function included)*1
Ultra Small Package
: SOT-26, USP-6B
*1 High output impedance during stand-by
■PIN CONFIGURATION
■PIN ASSIGNMENT
SOT-26
(TOP VIEW)
Q1
VDD
CLKin
Q0
VSS
CE
*The dissipation pad for the USP-6B
package should be solder-plated in
recommended mount pattern and metal
masking so as to enhance mounting
strength and heat release.
If the pad needs to be connected to other
pins, it should be connected to the VDD
pin.
PIN NUMBER PIN NAME
SOT-26 USP-6B
13
CE
2 2 VSS
31
Q0
46
Q1
5 5 VDD
6 4 CLKin
FUNCTION
Chip Enable
GND
PLL Output
Reference Oscillation, GND,
Comparative Frequency/2,
or PLL Output/2 Output *
Power Supply
Reference Clock Input
* Q1 Output is selectable from the above mentioned functions.
XC25BS3 ETR1501_003
1/10
1 page  
XC25BS3
Series
■ELECTRICAL CHARACTERISTICS
XC25BS30xxMR
●Set Value (example 1)
PARAMETER
Input Frequency
Q0 Pin Output Multiplier Ratio
Output Frequency 1
Output Frequency 2
SYMBOL
fCLKin
N/M
fQ0
Q1
MIN.
13.000
－
52.000
TYP.
－
4.000
－
fCLKin
MAX.
20.000
－
80.000
UNITS
MHz
Multiplier
MHz
－
● DC Characteristics
XC25BS30xxMR
PARAMETER
Supply Voltage
Input Voltage "High"
Input Voltage "Low"
Input Current "High"
Input Current "Low"
Output Voltage "High"
Output Voltage "Low"
Supply Current 1
Supply Current 2
CE "High" Voltage
CE "Low" Voltage
CE Pull-Down Resistance 1
CE Pull-Down Resistance 2
SYMBOL
VDD
VIH
VIL
IIH
IIL
VOH
VOL
IDD1
IDD2
VCEH
VCEL
Rp1
Rp2
fCLKin=20MHz, Q0 pin output multiplier ratio=4, Ta=25℃, No Load
CONDITIONS
MIN.
TYP. MAX. UNITS
2.97 3.30 3.63
2.7 － －
－ － 0.6
V
V
V
VCK=3.3V
VCK=0V
VDD=2.97V, IOH=-8mA
VDD=2.97V, IOL=8mA
CE=3.3V
CE=0V
－ － 3.0 μA
-3.0 －
－ μA
2.5 － －
V
－ － 0.4 V
－ 5.5 11.0 mA
－ － 5.0 μA
2.70 －
－
V
－ － 0.45 V
CE=3.3V
CE=0.3V
0.5 1.5 2.5 MΩ
20.0 50.0 80.0
kΩ
● AC Characteristics
XC25BS30xxMR
PARAMETER
Output Rise Time
Output Fall Time
Duty Ratio
Output Start Time
PLL Output Jitter
SYMBOL
TTLH
TTHL
DUTY
Ton
Tj
fCLKin=20MHz, Q0 pin output multiplier ratio=4, Ta=25℃, CL=15pF
CONDITIONS
MIN.
TYP. MAX. UNITS
VDD=3.3V (20% to 80%) (*2)
－
5.0
－
ns
VDD=3.3V (20% to 80%) (*2)
－
5.0
－
ns
40 50 60 %
(*2)
1σ(*2)
－ － 20 ms
－ 60 － ps
*2 R&D guarantee
5/10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet XC25BS3.PDF ] | |
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