XC25BS8
Series
■GENERAL
DESCRIPTION
ETR1506-007a
Ultra Small PLL Clock Generator ICs with Built-In Divider/Multiplier Circuits
The XC25BS8 series is an ultra small PLL clock generator IC which can generate a high multiplier output up to 4095 from an input frequency as
low as 8kHz.
The series includes a divider circuit, phase/frequency comparator, charge pump, and VCO so it is possible to configure a fully
operational circuit with a few external components like one low-pass filter capacitor. The Input divider ratio (M) can be selected from a range of 1
to 2047, the output divider ratio (N) can be selected from a range of 1 to 4095 and they are set internally by using laser timing technologies.
Output frequency (fQ0) is equal to input clock frequency (f
CLKin
) multiplied by N/M. Output frequency range is 1MHz to 100MHz. Reference clock
from 8kHz to 36MHz can be input as the input clock. The IC stops operation and current drain is suppressed when a low level signal is input to the
CE pin which greatly reduces current consumption and produces a high impedance output.
The setting of the input divider ratio (M), output divider ratio (N), and charge pump current (Ip) are factory fixed semi-custom. Please advise your
Torex sales representative of your particular input/output frequency and supply voltage specifications so that we can see if we will be able to
support your requirements. The series is available in small SOT-26W and USP-6C.
■
APPLICATIONS
Clock for controlling a Imaging dot (LCD)
DSC (Digital still camera)
DVC (Digital video camera)
PND (Car navigation system)
UMPC (Ultra Mobile Personal Computer)
SSD (Solid State Disk)
Digital Photo Frame
Microcomputer and HDD drives
Cordless phones & Wireless communication
equipment
●
Various system clocks
●
●
●
●
●
●
●
●
●
■FEATURES
Input Frequency Range
Output Frequency Range
Output Divider (N) Range
Input Divider (M) Range
Operating Voltage Range
Low Power Consumption
Small Packages
: 8kHz ~ 36MHz
(*1)
: 1MHz ~ 100MHz
(f
Q0
=f
CLKin
× N/M)
(*1)
: 1 ~ 4095
(*1)
: 1 ~ 2047
(*1)
: 2.50V ~ 5.50V
(*1)
: 10μA MAX. when stand-by
(*2)
: SOT-26W, USP-6C
*1: The series are semi-custom products. Specifications for each
product are limited within the above range. The input frequency
range is set within ±5％ of customer’s designated typical frequency.
Please note that setting of your some requirements may not be
possible due to the specification limits of this series.
*2: When the IC is in stand-by mode, the output becomes high impedance
and the IC stops operation.
■TYPICAL
APPLICATION CIRCUIT
■
TYPICAL PERFORMANCE
CHARACTERISTICS
PLL Output signal jitter 2 (t
J2
) (synchronous to an input signal)
XC25BS8001xx (610 multiplier, input 15kHz (TYP.))
*1
Input Signal
Output jitter
t
J2
=20(ns)
Output Signal
*1: C
IN
(by-pass capacitor, 0.1μF) and C1 ( LPF capacitor, 0.1μ
F) should be connected as close as possible to the IC. Please
refer to the pattern reference layout schematics on page 8 for
details.
1/14
XC25BS8
Series
■PIN
CONFIGURATION
Q0
6
V
SS
5
CE
4
V
DD
6
1 Q0
2 V
SS
3 CE
* The dissipation pad (TAB) of the
bottom view of the USP-6C package
should be connected to the V
SS
(No. 2)
pin.
LPF 5
CLKin 4
1
2
3
V
DD
LPF
CLKin
SOT-26W
(TOP VIEW)
USP-6C
(BOTTOM VIEW)
■PIN
ASSIGNEMNT
PIN NUMBER
SOT-26W
6
5
4
3
2
1
USP-6C
1
2
3
4
5
6
PIN NAME
Q0
V
SS
CE
CLKin
LPF
V
DD
FUNCTION
Clock Output
Ground
Stand-by Control
(*)
Reference Clock Signal Input
Device connection for Low Pass Filter
Power Input
■
FUNCTION LIST
CE
Q0
'H''
Signal Output
'L'' or OPEN
High Impedance
*H: High level input
L: Low level input
（stand-by
mode）
2/14
XC25BS8
Series
■
PRODUCT CLASSIFICATION
●Ordering
Information
XC25BS8①②③④⑤-⑥
DESIGNATOR
①②③
(*1)
DESCRIPTION
Product Number
SYMBOL
001~
MR
MR-G
ER
ER-G
DESCRIPTION
Serial number based on internal standards
e.g. product number 001→①②③=001
SOT-26W
SOT-26W (Halogen & Antimony free)
USP-6C
USP-6C (Halogen & Antimony free)
④⑤-⑥
Packages
Taping Type
(*2)
(*1)
(*2)
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
The device orientation is fixed in its embossed tape pocket. For reverse orientation, please contact your local Torex sales office or
representative. (Standard orientation:
④R-⑥,
Reverse orientation:
④L-⑥)
■BLOCK
DIAGRAM
V
SS
Q
0
Output
Buffer
CE
Rdn
1/N
Counter
VCO
Charge
Pump
Phase
Detector
1/M
Counter
V
DD
CLK½½
LPF
C1
C1：Low Pass Filter Ceramic Capacitor
（Please
set as an external components between LPF Pin and V
SS
）
Recommended components (1608 Type)；
C1：0.1μF ---- Taiyo yuden EMK107BJ104KA
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
Supply Voltage
CLKin Pin Input Voltage
CE Pin Input Voltage
Q0 Pin Output Voltage
Q0 Pin Output Current
Power Dissipation
SOT-26W
USP-6C
SYMBOL
V
DD
V
CK
V
CE
V
Q0
I
Q0
Pd
Topr
Tstg
RATINGS
V
SS
- 0.3
½
V
SS
+ 7.0
V
SS
- 0.3
½
V
DD
+ 0.3
V
SS
- 0.3
½
V
DD
+ 0.3
V
SS
- 0.3
½
V
DD
+ 0.3
± 50
250
100
-40
½+85
-55
½+125
V
V
V
V
Ta=25℃
UNITS
mA
mW
mW
℃
℃
Operating Temperature Range
Storage Temperature Range
3/14
XC25BS8
Series
■
SELECTION GUIDE
*1: The table below introduces standard products. Please select with seeing the combination of input frequencies and multiplications.
The test condition: V
DD
=3.3V±10%
*2: For other input frequency and multiplication, please ask your Torex sales contacts.
Multiplication
64
128
Input Frequency
MIN
32kHz
32kHz
32kHz
32kHz
32kHz
½
½
½
½
½
½
½
½
½
½
½
½
½
½
½
½
½
½
MAX
192kHz
192kHz
96kHz
48kHz
192kHz
96kHz
48kHz
192kHz
96kHz
48kHz
192kHz
96kHz
48kHz
96kHz
48kHz
96kHz
48kHz
Synchronization
jitter
36ns
32ns
24ns
20ns
30ns
20ns
16ns
24ns
22ns
18ns
21ns
20ns
18ns
18ns
16ns
16ns
14ns
Synchronization
jitter
/ Output Period (％)
10%
18%
14%
11%
25%
17%
14%
27%
25%
20%
36%
34%
30%
41%
36%
54%
47%
Product Series
XC25BS8044
XC25BS8027
XC25BS8028
XC25BS8057
XC25BS8030
XC25BS8031
XC25BS8058
XC25BS8033
XC25BS8026
XC25BS8025
XC25BS8035
XC25BS8036
XC25BS8037
XC25BS8039
XC25BS8040
XC25BS8042
XC25BS8043
192
32kHz
32kHz
32kHz
256
32kHz
32kHz
32kHz
384
32kHz
32kHz
32kHz
32kHz
32kHz
32kHz
512
768
* Synchronization jitters are tested at f
CLKIN
=44.1kHz.
Multiplication
64
128
192
256
384
512
768
Input Frequency
MIN
8kHz
8kHz
8kHz
8kHz
8kHz
8kHz
8kHz
½
½
½
½
½
½
½
½
MAX
16kHz
16kHz
16kHz
16kHz
16kHz
16kHz
16kHz
Amount of Jitter
Synchronization
160ns
140ns
110ns
100ns
96ns
52ns
48ns
Amount of Jitter
Synchronization
/ Output Period (％)
8%
14%
17%
20%
29%
21%
29%
Product Series
XC25BS8045
XC25BS8029
XC25BS8032
XC25BS8034
XC25BS8038
XC25BS8041
XC25BS8046
* Synchronization jitters are tested at f
CLKIN
=8kH.
Multiplication
1
2
3
4
5
6
7
8
9
10
Input Frequency
MIN
8MHz
6MHz
2MHz
2MHz
2MHz
2MHz
2MHz
2MHz
2MHz
2MHz
½
½
½
½
½
½
½
½
½
½
½
MAX
74MHz
37MHz
24MHz
18MHz
14MHz
12MHz
10MHz
9MHz
8MHz
7MHz
Amount of Jitter
Synchronization
7ns
6ns
12ns
7ns
8ns
7ns
7ns
6ns
6ns
7ns
Amount of Jitter
Synchronization
/ Output Period (％)
8%
11%
11%
8%
12%
13%
15%
14%
16%
21%
Product Series
XC25BS8047
XC25BS8048
XC25BS8049
XC25BS8050
XC25BS8051
XC25BS8052
XC25BS8053
XC25BS8054
XC25BS8055
XC25BS8056
* Synchronization jitters are tested in the condition below.
For the XC258047 (1 Multiplication), f
CLKIN
=12MHz.
Except above, f
CLKIN
=3MHz is used.
For the XC258048(2 Multiplication), f
CLKIN
= 8MHz
4/14
XC25BS8
Series
■ELECTRICAL
CHARACTERISTICS
●Recommended
Operating Conditions: XC25BS8050xx (4 multiplication, Input 3MHz (TYP.)) 3.3V (TYP.)
Tested below Ta=25 C
O
PARAMETER
Supply Voltage 3.3V
Input Frequency
Multiplier Ratio
Output Frequency
Load Capacity
(*3)
SYMBOL
V
DD
f
CLKin
N/M
f
Q0
CL
t
START
CONDITIONS
3.3V (TYP.) operation
(*1)
MIN.
2.97
2.000
4
8.000
-
0.05
MAX.
3.63
18.500
74.000
15
20
UNITS
V
MHz
-
MHz
pF
ms
Typical value is shown
(*1)
(*1)
Output Start Time
(*2)(*3)
NOTE:
f
CLKin
＝2.000MHz
*1: The values are measured when a capacitor C
IN
=0.1μF is connected between V
DD
and V
SS
pins,
between LFP and V
SS
pins
a capacitor C1=0.1μF is connected
*2: It is a time to get stable output signal from Q0 pin after the CE pin is turned on while applying supply voltage to the V
DD
pin and applying the
input signal to the CLKin pin.
*3: Values indicated are design values which are not guaranteed 100%.
●DC
Characteristics: XC25BS8050xx (4 multiplication, Input 3MHz (TYP.)) 3.3V (TYP.)
PARAMETER
H Level Input Voltage
L Level Input Voltage
H Level Input Current
L Level Input Current
H Level Output Voltage
L Level Output Voltage
Supply Current 1
Supply Current 2
CE H Level Voltage
CE L Level Voltage
CE Pull-Down Resistance 1
CE Pull-Down Resistance 2
Output Off Leak Current
SYMBOL
V
IH
V
IL
Ii
H
Ii
L
V
OH
V
OL
I
DD1
I
DD2
V
CEH
V
CEL
Rdn1
Rdn2
I
OZ
CE= V
DD
CE= 0.1*V
DD
V
DD
=3.63V，CE= 0.0V
V
CLKin
=V
DD
-0.3V
V
CLKin
=0.3V
V
DD
=2.97V，IOH=-4mA
V
DD
=2.97V，IOL= 4mA
V
DD
=3.63V，CE= 3.63V
V
DD
=3.63V，CE= 0.0V
CONDITIONS
MIN.
2.70
-
-
-3.0
2.38
-
-
-
2.70
-
0.1
5
-
TYP.
-
-
-
-
-
-
5.0
-
-
-
0.6
30
-
MAX.
-
0.60
3.0
-
-
0.45
10.0
10
-
0.45
1.2
60
10
UNITS
V
V
μA
μA
V
V
mA
μA
V
V
MΩ
kΩ
μA
Ta=25℃
CIRCUIT
①
①
②
②
③
③
④
④
①
①
⑤
⑤
⑥
NOTE:
TEST CONDITION: V
DD
=3.0V, f
CLKin
=3MHz, C1=0.1μF, Multiplier ratio=4, No load
●AC
Characteristics: XC25BS8050xx (4 multiplication, 3MHz(TYP.)) 3.3V (TYP.)
PARAMETER
Output Rise Time
(*1)
Output Fall Time
(*1)
(*1)
(*1)
Ta=25℃
SYMBOL
t
R
t
F
Duty
t
J1
t
J
２
CONDITIONS
(20% ~ 80%)
(20% ~ 80%)
1σ (Output Period)
Peak to Peak (Output Tracking)
MIN.
-
-
45
-
-
TYP.
4.0
4.0
50
45
8.0
MAX.
8.0
8.0
55
-
-
UNITS
ns
ns
％
ps
ns
CIRCUIT
①
①
①
①
①
Output Signal Duty Cycle
PLL Output Signal Jitter 1
PLL Output Signal Jitter 2
(*1)
NOTE:
TEST CONDITION: V
DD
=3.3V, f
CLKin
=3MHz, C1=0.1μF, Multiplier ratio=4, C
L
=15pF
*1: Values indicated are design values, which are not guaranteed 100%.
5/14
PCB设计
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