XC25BS5_1 Datasheet, PDF (1/9 Pages) Torex Semiconductor – CMOS Low Power Consumption

◆CMOS Low Power Consumption
■APPLICATIONS
◆Input Frequency
: 12kHz to 35MHz
●Crystal oscillation modules
◆Divider Ratio
: 1, 3~2047 Divisions _{●Personal computers}
◆Multiplier Ratio
(Laser Trimming)
●PDAs
: 6~2047 Multiplications
(Laser Trimming) ^{●Portable audio systems}
◆Comparative Frequency : 12kHz~500kHz
●Various system clocks
◆Output Frequency
: 3MHz ~30MHz
■GENERAL DESCRIPTION
The XC25BS5 series are high frequency, low power
consumption PLL clock generator ICs with divider circuit &
multiplier PLL circuit.
Laser trimming gives the option of being able to select from
divider ratios (M) of 1,3 to 2047 and multiplier ratios (N) of 6
to 2047.
Output frequency (Q0) is equal to reference oscillation
(fCLKin) multiplied by N/M, within a range of 3MHz to 30MHz.
Q1 output is selectable from input reference frequency (f0),
input reference frequency/2 (f0/2), ground (GND), and
comparative frequency (f0/M). Further, comparative
frequencies, within a range of 12KHz to 500KHz, can be
obtained by dividing the reference oscillation. By halting
operation via the CE pin, consumption current can be
controlled and output will be one of high-impedance.
■FEATURES
Output Frequency : 3MHz ~ 30MHz (Q0=fCLKin×N/M)
Reference Oscillation (fCLKin)
: 12kHz ~ 35MHz
Divider Ratio (M) : Selectable from divisions of 1, 3~2047
Multiplier Ratio (N) : Selectable from multiplications of 6~2047
Output
: 3-State
Q1 output selectable from input reference
oscillation, input reference oscillation/2,
GND, comparative frequency.
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 standby
■PIN CONFIGURATION
■PIN ASSIGNMENT
SOT-26
(TOP VIEW)
Q1 6
VDD 5
CLKin 4
1 Q0
2 VSS
3 CE
USP-6B
(BOTTOM VIEW)
*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.
■FUNCTION LIST
PIN NUMBER
SOT-26 USP-6B
1
3
2
2
3
1
4
6
5
5
6
4
●CE, Q0/Q1 Pin Function
CE
FUNCTION
"H"
Q0, Q1 Clock Output
"L"
Stand-by. Output Pin = High Impedance
Open
Stand-by. Output Pin = High Impedance
(VSS Pin Pull-Down Due to IC's Internal Resistor)
"H" = High level
"L" = Low level
PIN
NAME
CE
VSS
Q0
Q1
VDD
CLKin
FUNCTION
Chip Enable
GND
PLL Output
Reference Oscillation,
Reference Oscillation/2,
GND, or Comparative
Frequency Output
Power Supply
Reference Clock Input
XC25BS5 ETR1502_002
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