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CMOS Low Power Consumption Input Frequency : 12kHz to 35MHz Divider Ratio : 1, 3~2047 Divisions (Laser Trimming) Multiplier Ratio : 6~2047 Multiplications (Laser Trimming) Comparative Frequency : 12kHz~500kHz Output Frequency : 3MHz ~30MHz
APPLICATIONS
Crystal oscillation modules Personal computers PDAs Portable audio systems Various system clocks
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=fCLKinxN/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
Q1 6 VDD 5 CLKin 4
SOT-26 (TOP VIEW) 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.
PIN ASSIGNMENT
1 Q0 2 VSS 3 CE
PIN NUMBER SOT-26 USP-6B 1 3 2 2 3 1 4 5 6 6 5 4
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
FUNCTION LIST
CE, Q0/Q1 Pin Function
CE "H" "L" Open FUNCTION Q0, Q1 Clock Output Stand-by. Output Pin = High Impedance Stand-by. Output Pin = High Impedance (VSS Pin Pull-Down Due to IC's Internal Resistor)
"H" = High level "L" = Low level
XC25BS5 ETR1502_002
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XC25BS5 Series
PRODUCT CLASSIFICATION
Ordering Information
XC25BS5 DESIGNATOR DESCRIPTION Product Number Package Device Orientation SYMBOL Integer M D R L DESCRIPTION : Based on internal standards e.g. Product number 001 = 001 : SOT-26 : USP-6B : Embossed tape, standard feed : Embossed tape, reverse feed
PACKAGING INFORMATION
SOT-26 USP-6B
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XC25BS5 Series
MARKING RULE
SOT-26
Represents product series MARK 5 PRODUCT SERIES XC25BS51xxMx
Represents and of ordering information MARK SOT-26 (TOP VIEW) 0 7 PRODUCT SERIES XC25BS5107Mx
Represents assembly lot number (Based on internal standards) ,, Represents product series MARK B S S 5 0 S PRODUCT SERIES XC25BS50xxDx XC25BS5SxxDx
USP-6B
1 2 3 6 5 4
USP-6B (TOP VIEW)
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply Voltage CLKin Pin Voltage CE Pin Voltage Q0 Pin Voltage Q1 Pin Voltage Q0 Output Current Q0 Output Current Power Dissipation SOT-26 USP-6B SYMBOL VDD VCK VCE VQ0 VQ1 IQ0 IQ1 Pd Topr Tstg CONDITIONS VSS-0.3 ~ VSS+7.0 VSS-0.3 ~ VDD+0.3 VSS-0.3 ~ VDD+0.3 VSS-0.3 ~ VDD+0.3 VSS-0.3 ~ VDD+0.3 50 50 150 100 - 30 ~ + 80 - 40 ~ +125
Operating Temperature Range Storage Temperature Range
, Represents and of ordering information (ex.) MARK 0 0 7 1 PRODUCT SERIES XC25BS5007Dx XC25BS5S01Dx
Represents production lot number 0 to 9,A to Z repeated (G, I, J, O, Q, W excepted) Note: No character inversion used.
Ta = 25 UNITS V V V V V mA mA mW
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XC25BS5 Series
FREQUENCY CONFIGURATION: EXAMPLE 1
XC25BS51XXMR PARAMETER Input Frequency Multiplier/Divider Ratio PLL Output Frequency Q1 Output Frequency SYMBOL f CLKin N/M fQ0 Q1 MIN. 11.0000 17.5383 TYP. 1.594 GND MAX. 16.9344 27.0000 UNITS MHz MHz -
Electrical Characteristics (DC) XC25BS51xxMR 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 = 16.9344MHz, Multiplier/Divider Ratio = 1.594, Ta = 25, No Load
CONDITIONS
MIN. 2.97 2.7 -
TYP. 3.30 3.0 1.5 50.0
MAX. 3.63 0.6 3.0 0.4 6.0 5.0 0.45 2.5 80.0
UNITS V V V A A V V mA A V V M k
VCK = 3.3V VCK = 0V VDD = 2.97V, IOH = -8mA VDD = 2.97V, IOL = 8mA CE = 3.3V CE = 0V
-3.0 2.5 2.7 -
CE = 3.3V CE = 0.3V
0.5 20.0
Electrical Characteristics XC25BS51xxMR
PARAMETER Output Rise Time Output Fall Time Duty Ratio Output Start Time PLL Output Jitter
(AC)
fCLKin=16.9344MHz, Multiplier/Divider Ratio=1.594, Ta=25, CL=15pF
SYMBOL TTLH TTHL DUTY Ton Tj
CONDITIONS VDD=3.3V(20% to 80%) (*1) VDD=3.3V(20% to 80%) (*1)
MIN. 40
TYP. 5.0 5.0 50 40
MAX. 60 20 -
UNITS Ns Ns % ms ps
(*1) 1 (*1)
-
*1 R&D guarantee
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XC25BS5 Series
FREQUENCY CONFIGURATION: EXAMPLE 2
XC25BS51XXMX PARAMETER Input Frequency Multiplier/Divider Ratio PLL Output Frequency Q1 Output Frequency SYMBOL f CLKin N/M fQ0 Q1 MIN. 52.0000 13.312 TYP. 256.000 GND MAX. 78.0000 19.968 UNITS kHz MHz -
Electrical Characteristics XC25BS51xxMR
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
(DC)
fCLKin=78kHz, Multiplier/Divider Ratio=256, Ta=25, No Load
SYMBOL VDD VIH VIL IIH IIL VOH VOL IDD1 IDD2 VCEH VCEL Rp1 Rp2
CONDITIONS
MIN. 2.97 2.7 -
TYP. 3.30 2.0 1.5 50.0
MAX. 3.63 0.6 3.0 0.4 4.0 5.0 0.45 2.5 80.0
UNITS V V V A A V V mA A V V M K
VCK=3.3V VCK=0V VDD=2.97V, IOH= - 8mA VDD=2.97V, IOL=8mA CE=0.3V CE=0V
-3.0 2.5 2.7 -
CE Pull-Down Resistance 1 CE Pull-Down Resistance 2
CE=3.3V CE=0.3V
0.5 20.0
Electrical Characteristics XC25BS51xxMR
PARAMETER Output Rise Time Output Fall Time Duty Ratio Output Start Time PLL Output Jitter
(AC)
fCLKin=78kHz, Multiplier/Divider Ratio=256, Ta=25, CL=15pF
SYMBOL TTLH TTHL DUTY Ton Tj
CONDITIONS VDD=3.3V(20% to 80%) (*1) VDD=3.3V(20% to 80%) (*1)
MIN. 40
TYP. 5.0 5.0 50 20
MAX. 60 20 -
UNITS Ns Ns % ms ps
(*1) 1 (*1)
-
*1 R&D guarantee
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XC25BS5 Series
TYPICAL APPLICATION CIRCUITS
Q1 Pin - reference oscillation, reference oscillation/2, comparative frequency
Q1 Pin - GND
NOTE
(1) Please insert a by-pass capacitor of 0.1F. (2) Rq0 and Rq1 are matching resistors. Their use is recommended in order to counter unwanted radiations. (3) Please place a by-pass capacitor and matching resistors as close to the IC as possible. It may be that the output cannot be locked if the by-pass capacitor is not close enough to the IC. Further, there is a possibility of unwanted radiation occurrence between the resistor and the IC pin if the matching resistor is not close enough to the IC. (4) When selecting GND for the Q1 pin, although the output of Q1 pin is GND level, it is also recommended that the Q1 pin be connected to GND pattern on the PCB. (5) When the CE pin is not controlled by external signals, it is recommended that a time constant circuit of R1=1k xC1 = 0.1F be added for stability. (6) With this IC, output is achieved by dividing and multiplying the reference oscillation by means of the PLL circuit. In cases where this output is further used as a reference oscillation of another PLL circuit, it may be that the final output signal's jitter increases, so all necessary precautions should be taken to avoid this. (7) It is recommended that a low noise power supply, such as a series regulator, be used for the supply voltage. Using a power supply such as a switching regulator might lead to a larger jitter, which in turn may lead to an inability to lock due to the ripple of the switching regulator. (8) As for this IC, synchronization of input and output signal's edge is not guaranteed though the input frequency operates to the output frequency multiply.
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XC25BS5 Series
REFERENCE LAND PATTERN
Q1 Pin - reference oscillation, reference oscillation/2, comparative frequency
Q1 Pin - GND
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XC25BS5 Series
AC CHARACTERISTIC WAVEFORMS
1) Output Rise Time / Output Fall Time
DUTY Measurement Level
2) Duty Ratio
DUTY Measurement Level
3) Output Start Time
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XC25BS5 Series
1. The products and product specifications contained herein are subject to change without notice to improve performance characteristics. Consult us, or our representatives before use, to confirm that the information in this catalog is up to date. 2. We assume no responsibility for any infringement of patents, patent rights, or other rights arising from the use of any information and circuitry in this catalog. 3. Please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this catalog. 4. The products in this catalog are not developed, designed, or approved for use with such equipment whose failure of malfunction can be reasonably expected to directly endanger the life of, or cause significant injury to, the user. (e.g. Atomic energy; aerospace; transport; combustion and associated safety equipment thereof.) 5. Please use the products listed in this catalog within the specified ranges. Should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives. 6. We assume no responsibility for damage or loss due to abnormal use. 7. All rights reserved. No part of this catalog may be copied or reproduced without the prior permission of Torex Semiconductor Ltd.
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