TOREX XC25BS8 User Manual

XC25BS8 Series

ETR1506-007a

Ultra Small PLL Clock Generator ICs with Built-In Divider/Multiplier Circuits

■GENERAL DESCRIPTION

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

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

■TYPICAL APPLICATION CIRCUIT

) multiplied by N/M. Output frequency range is 1MHz to 100MHz. Reference clock

CLKin

■FEATURES

× N/M)

(*1)

(*1)

(*1)

(*1)

(*1)

Input Frequency Range : 8kHz ~ 36MHz

Output Frequency Range : 1MHz ~ 100MHz

(fQ0=f

CLKin

Output Divider (N) Range : 1 ~ 4095

Input Divider (M) Range : 1 ~ 2047

Operating Voltage Range : 2.50V ~ 5.50V
Low Power Consumption : 10μA MAX. when stand-by

Small Packages : 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 PERFORMANCE

CHARACTERISTICS

PLL Output signal jitter 2 (tJ2) (synchronous to an input signal)

XC25BS8001xx (610 multiplier, input 15kHz (TYP.))

(*2)

*1

*1: CIN (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.

Input Signal

Output Signal

Output jitter
t

=20(ns)

J2

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XC25BS8Series

■PIN CONFIGURATION

■PIN ASSIGNEMNT

PIN NUMBER

SOT-26W USP-6C

6 1 Q0 Clock Output
5 2 VSS Ground
4 3 CE
3 4 CLKin Reference Clock Signal Input
2 5 LPF Device connection for Low Pass Filter
1 6 VDD Power Input

■ FUNCTION LIST

CE 'H'' 'L'' or OPEN

Q0 Signal Output High Impedance

Q0

V

6

132

DD

SOT-26W

(TOP VIEW)

V

SS

LPF

CE

45

CLKin

PIN NAME

V

DD

LPF

CLKin

6

5

4

USP-6C

(BOTTOM VIEW)

Stand-by Control

1

2

3

FUNCTION

Q0

V

SS

CE

(*)

*H: High level input

L: Low level input （stand-by mode）

* The dissipation pad (TAB) of the

bottom view of the USP-6C package

should be connected to the V

pin.

(No. 2)

SS

2/14

■ PRODUCT CLASSIFICATION

●Ordering Information

XC25BS8①②③④⑤-⑥

(*1)

DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION

XC25BS8

Series

①②③

Product Number 001~

Serial number based on internal standards

e.g. product number 001→①②③=001

MR SOT-26W

④⑤-⑥

Packages

Taping Type

(*2)

MR-G SOT-26W (Halogen & Antimony free)

ER USP-6C

ER-G USP-6C (Halogen & Antimony free)

(*1)

The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.

(*2)

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

Q

0

Output

Buffer

V

SS

CE

Rdn

1/N

Counter

VCO

Charge

Pump

Phase

Detector

V

DD

LPF

C1

■ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL RATINGS UNITS

Supply Voltage VDD

CLKin Pin Input Voltage VCK

CE Pin Input Voltage VCE

Q0 Pin Output Voltage VQ0

Q0 Pin Output Current IQ0 ± 50 mA

Power Dissipation

SOT-26W

USP-6C

Operating Temperature Range Topr

Storage Temperature Range Tstg

1/M

Counter

C1：Low Pass Filter Ceramic Capacitor

（Please set as an external components between LPF Pin and V

Recommended components (1608 Type)；
C1：0.1μF ---- Taiyo yuden EMK107BJ104KA

- 0.3 ～ VSS + 7.0

V

SS

- 0.3 ～ VDD + 0.3

V

SS

- 0.3 ～ VDD + 0.3

V

SS

- 0.3 ～ VDD + 0.3

V

SS

Pd

250

CLK

ｉｎ

100

-40 ～+85 ℃

-55 ～+125 ℃

V

V

V

V

mW

mW

）

SS

Ta =2 5 ℃

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XC25BS8Series

■ SELECTION GUIDE

*1: The table below introduces standard products. Please select with seeing the combination of input frequencies and multiplications.
The test condition: V

*2:

For other input frequency and multiplication, please ask your Torex sales contacts.

Multiplication

64 32kHz ～ 192kHz 36ns 10% XC25BS8044

128

192

256

384

512

768

* Synchronization jitters are tested at f

Multiplication

64 8kHz ～ 16kHz 160ns 8% XC25BS8045
128 8kHz ～ 16kHz 140ns 14% XC25BS8029
192 8kHz ～ 16kHz 110ns 17% XC25BS8032
256 8kHz ～ 16kHz 100ns 20% XC25BS8034
384 8kHz ～ 16kHz 96ns 29% XC25BS8038
512 8kHz ～ 16kHz 52ns 21% XC25BS8041
768 8kHz ～ 16kHz 48ns 29% XC25BS8046

* Synchronization jitters are tested at f

Multiplication

1

2

3

4

5

6

7

8

9

10

* Synchronization jitters are tested in the condition below.

For the XC258047 (1 Multiplication), f

Except above, f

=3.3V±10%

DD

Input Frequency

MIN ～ MAX

Synchronization

jitter

Synchronization

jitter

/ Output Period (％)

Product Series

32kHz ～ 192kHz 32ns 18% XC25BS8027
32kHz ～ 96kHz 24ns 14% XC25BS8028
32kHz ～ 48kHz 20ns 11% XC25BS8057
32kHz ～ 192kHz 30ns 25% XC25BS8030
32kHz ～ 96kHz 20ns 17% XC25BS8031
32kHz ～ 48kHz 16ns 14% XC25BS8058
32kHz ～ 192kHz 24ns 27% XC25BS8033
32kHz ～ 96kHz 22ns 25% XC25BS8026
32kHz ～ 48kHz 18ns 20% XC25BS8025
32kHz ～ 192kHz 21ns 36% XC25BS8035
32kHz ～ 96kHz 20ns 34% XC25BS8036
32kHz ～ 48kHz 18ns 30% XC25BS8037
32kHz ～ 96kHz 18ns 41% XC25BS8039
32kHz ～ 48kHz 16ns 36% XC25BS8040
32kHz ～ 96kHz 16ns 54% XC25BS8042
32kHz ～ 48kHz 14ns 47% XC25BS8043

=44.1kHz.

CLKIN

Input Frequency

MIN ～ MAX

=8kH.

CLKIN

Input Frequency

MIN ～ MAX

8MHz

6MHz

2MHz

2MHz

2MHz

2MHz

2MHz

2MHz

2MHz

2MHz

=3MHz is used.

CLKIN

74MHz 7ns 8%

～

37MHz 6ns 11%

～

24MHz 12ns 11%

～

18MHz 7ns 8%

～

14MHz 8ns 12%

～

12MHz 7ns 13%

～

10MHz 7ns 15%

～

9MHz 6ns 14%

～

8MHz 6ns 16%

～

7MHz 7ns 21%

～

=12MHz. For the XC258048(2 Multiplication), f

CLKIN

Amount of Jitter
Synchronization

Amount of Jitter

Synchronization

Amount of Jitter
Synchronization

/ Output Period (％)

Amount of Jitter

Synchronization

/ Output Period (％)

= 8MHz

CLKIN

Product Series

Product Series

XC25BS8047

XC25BS8048

XC25BS8049

XC25BS8050

XC25BS8051

XC25BS8052

XC25BS8053

XC25BS8054

XC25BS8055

XC25BS8056

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XC25BS8

■ELECTRICAL CHARACTERISTICS

●Recommended Operating Conditions: XC25BS8050xx (4 multiplication, Input 3MHz (TYP.)) 3.3V (TYP.)

PARAMETER SYMBOL CONDITIONS MIN. MAX. UNITS

Supply Voltage 3.3V

Input Frequency

Multiplier Ratio

Output Frequency

Load Capacity

Output Start Time

NOTE:

*1: The values are measured when a capacitor C

between LFP and V

*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

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.)

(*3)

CL

(*2)(*3)

pins

SS

VDD

f

CLKin

N/M

fQ0

t

START

3.3V (TYP.) operation

(*1)

Typical value is shown

(*1)

=0.1μF is connected between VDD and V

IN

＝2.000MHz

f

CLKin

(*1)

2.97 3.63 V

2.000 18.500 MHz

4 -

8.000 74.000 MHz

- 15 pF

0.05 20 ms

pins, a capacitor C1=0.1μF is connected

SS

PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT

H Level Input Voltage VIH 2.70 - - V

L Level Input Voltage VIL - - 0.60 V

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

NOTE:

TEST CONDITION: V

●AC Characteristics: XC25BS8050xx (4 multiplication, 3MHz(TYP.)) 3.3V (TYP.)

=3.0V, f

DD

IiH V

CLKin=VDD

IiL V

VOH

VOL

I

DD1

I

DD2

V

2.70 - - V

CEH

V

- - 0.45 V

CEL

=2.97V，IOH=-4mA

V

DD

=2.97V，IOL= 4mA

V

DD

=3.63V，CE= 3.63V

V

DD

=3.63V，CE= 0.0V

V

DD

Rdn1 CE= V

Rdn2 CE= 0.1*V

I

OZ

=3MHz, C1=0.1μF, Multiplier ratio=4, No load

CLKin

=3.63V，CE= 0.0V

V

DD

-0.3V - - 3.0

=0.3V -3.0 - -

CLKin

0.1 0.6 1.2

DD

DD

2.38 - - V

- - 0.45 V

- 5.0 10.0 mA

- - 10

5 30 60

- - 10

PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT

Output Rise Time

Output Fall Time

Output Signal Duty Cycle

PLL Output Signal Jitter 1

PLL Output Signal Jitter 2

NOTE:

TEST CONDITION: V

*1: Values indicated are design values, which are not guaranteed 100%.

(*1)

t

(*1)

t

(*1)

(*1)

(*1)

=3.3V, f

DD

R

F

Duty

tJ1

t

J

２

=3MHz, C1=0.1μF, Multiplier ratio=4, CL=15pF

CLKin

(20% ~ 80%) - 4.0 8.0 ns

(20% ~ 80%) - 4.0 8.0 ns

45 50 55

1σ (Output Period)

Peak to Peak (Output Tracking) - 8.0 - ns

- 45 - ps

Tested below Ta=25OC

pin and applying the

DD

μA ②
μA ②

μA ④

MΩ ⑤

kΩ ⑤

μA ⑥

％ ①

Series

Ta =2 5 ℃

①
①

③
③
④

①
①

Ta =2 5 ℃

①
①

①
①

5/14