PLL Clock Generator ICs with Built-In Divider/Multiplier Circuits (For Low Frequency range)
Series
95
1
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.
General Description
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 mini mold
*1 High output impedance during standby
GCrystal Oscillation Modules
GPersonal Computers
GPDAs
GPortable Audio Systems
GVarious System Clocks
Features
Applications
NCMOS Low Power Consumption
NInput Frequency : 12KHz to 35MHz
NDivider Ratio
: 1, 3 ~ 2047 divisions
(laser trimming)
NMultiplier Ratio
: 6 ~ 2047 multiplications
(laser trimming)
NComparative Frequency : 12KHz ~ 500KHz
NOutput Frequency : 3MHz ~ 30MHz
NMini Mold SOT-26 Package
Reference Oscillation, Reference
Oscillation/2, GND, or Comparative
Frequency Output
CLKin
Reference Clock Input
Q
1
V
DD
Power Supply
V
SS
GND
Q
0
PLL Output
PIN NUMBER PIN NAME
FUNCTION
CE
Chip Enable
1
V
DD
V
SS
Q
1
CLK
in
Q
0
CE
Pin Configuration
SOT-26
(TOP VIEW)
Pin Assignment
Function List
GCE, Q0/Q1 Pin Function
""
""
Open
FUNCTION
Q
0
, Q
1
clock output
Standby. Ouput pin = high impedance
Standby. Ouput pin = high impedance
(V
SS
pin pull down due to IC's internal resistor)
"H" = High level
"L" = Low level
01S_15XC25BS5 02.09.12 11:37 95
XC25BS5
Series
98
1
Frequency Configuration : Example 1
SYMBOL
CLKin
N/M
fQ
0
Q
1
MIN.
11.0000
-
17.5383
TYP.
-
1.594
-
GND
MAX.
16.9344
-
27.0000
UNITS
MHz
-
MHz
-
PARAMETER
Input Frequency
Multiplier/Divider Ratio
PLL Output Frequency
Q1 Output Frequency
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
2.97
0.5
2.7
-
2.7
CE = 0.3V
V
DD =
2.97V,I
OL =
8mA
CE = 3.3V
CE = 0V
80.0
50.0
20.0
2.5
1.5
V
CK =
3.3V
V
CK =
0V
V
DD =
2.97V,I
OH =
-8mA
0.45
-
-
-
-
-
-
0.4
6.0
3.0
5.0
-
-
-
-
-
-3.0
2.5
-
3.3
-
-
-
-
-
3.0
3.63
-
0.6
Rp1
I
DD
2
V
CEH
V
CEL
CE = 3.3V
Rp2
I
DD
1
I
IH
I
IL
V
OH
V
OL
V
DD
V
IH
V
IL
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
Supply Voltage
Input Voltage "High"
Input Voltage "Low"
Input Current "High"
A
M
K
mA
V
V
V
V
V
V
V
A
A
fCLKin = 16.9344MHz, Multiplier/Divider Ratio = 1.594, Ta = 25
C, No Load
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
fCLKin=16.9344MHz, Multiplier/Divider Ratio=1.594, Ta=25
O
C, CL=15pF
*2 R&D guarantee
PLL Output Jitter
Tj
1*2
-
40
-
ps
Output Start Time
Ton
*2
-
-
20
ms
5.0
-
ns
Duty Ratio
DUTY
40
50
60
Output Fall Time
T
THL
V
DD
=3.3V(20% to 80%)*2
-
Output Rise Time
T
TLH
V
DD
=3.3V(20% to 80%)*2
-
5.0
-
ns
GElectrical Characteristics (AC)
GElectrical Characteristics (DC)
01S_15XC25BS5 02.09.12 11:37 98
XC25BS5
Series
99
1
SYMBOL
CLKin
N/M
fQ
0
Q
1
MIN.
52.0000
-
13.312
TYP.
-
256.000
-
GND
MAX.
78.0000
-
19.968
UNITS
kHz
-
MHz
-
PARAMETER
Input Frequency
Multiplier/Divider Ratio
PLL Output Frequency
Q1 Output Frequency
PARAMETER
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
Supply Voltage
Input Voltage "High"
Input Voltage "Low"
Input Current "High"
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
2.97
0.5
2.7
-
2.7
CE=0.3V
V
DD
=2.97V,I
OL
=8mA
CE=3.3V
CE=0V
80.0
50.0
20.0
2.5
1.5
V
CK
=3.3V
V
CK
=0V
V
DD
=2.97V,I
OH
= - 8mA
0.45
-
-
-
-
-
-
0.4
4.0
2.0
5.0
-
-
-
-
-
- 3.0
2.5
-
3.3
-
-
-
-
-
3.0
3.63
-
0.6
Rp1
I
DD
2
V
CEH
V
CEL
CE=3.3V
Rp2
I
DD
1
I
IH
I
IL
V
OH
V
OL
V
DD
V
IH
V
IL
A
M
K
mA
V
V
V
V
V
V
V
A
A
fCLKin=78kHz, Multiplier/Divider Ratio=256, Ta=25
C, No Load
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
fCLKin=78KHz, Multiplier/Divider Ratio=256, Ta=25
O
C, CL=15pF
*2 R&D guarantee
PLL Output Jitter
Tj
1*2
-
20
-
ps
Output Start Time
Ton
*2
-
-
20
ms
5.0
-
ns
Duty Ratio
DUTY
40
50
60
Output Fall Time
T
THL
V
DD
=3.3V(20% to 80%)*2
-
Output Rise Time
T
TLH
V
DD
=3.3V(20% to 80%)*2
-
5.0
-
ns
Frequency Configuration : Example 2
GElectrical Characteristics (AC)
GElectrical Characteristics (DC)
01S_15XC25BS5 02.09.12 11:37 99
PDF 
ZIP
