ETC CY26118

025/0251
PRELIMINARY
CY26118
19.6608-MHz Clock Generator
Features
Benefits
• Integrated phase-locked loop (PLL)
Highest-performance PLL tailored for multimedia applications
• Low-jitter, high-accuracy outputs
Meets critical timing requirements in complex system designs
• 3.3V operation
Part Number
CY26118
Outputs
1
Input Frequency Range
15.0000 MHz
Output Frequencies
19.6608 MHz
Logic Block Diagram
Pin Configuration
15.0000 XIN
OSC
XOUT
Q
OUTPUT
DIVIDER
Φ
VCO
CY26118
8-pin SOIC
19.6608 MHz
P
PLL
AVDD VDD
Cypress Semiconductor Corporation
Document #: 38-07274 Rev. *A
AVSS
•
XIN
1
8
XOUT
AVDD
N/C
2
7
3
6
AVSS
4
5
VSS
19.6608 MHz
VDD
VSS
3901 North First Street
•
San Jose
•
CA 95134 • 408-943-2600
Revised December 14, 2001
CY26118
PRELIMINARY
Pin Summary
Name
Pin Number
Description
XIN
1
15.000 MHz Reference Crystal Input
AVDD
2
Analog Voltage Supply
N/C
3
No Connect
AVSS
4
Analog Ground
VDD
5
Output Voltage Supply
19.6608 MHz
6
19.6608-MHz clock output
VSS
7
Output Ground
8
Reference Crystal Output
XOUT
[1]
Absolute Maximum Conditions
Parameter
Description
Supply Voltage
VDD
Temperature[2]
TS
Storage
TJ
Junction Temperature
Min.
Max.
Unit
–0.5
7.0
V
–65
125
°C
125
°C
Digital Inputs
VSS – 0.3
VDD + 0.3
V
Digital Outputs referred to VDD
VSS – 0.3
VDD + 0.3
V
2000
V
Electro-Static Discharge
Recommended Operating Conditions
Parameter
Description
VDD
Operating Voltage
TA
Ambient Temperature
Min.
Typ.
Max.
3.0
3.3
3.6
V
70
°C
0
Unit
CLOAD
Max Load Capacitance
15
pF
Pmax
Max Output Power Dissipation,
8-pin package
150
° C/W
fREF
Reference Frequency
tPU
Power-up time for all VDD's to
reach minimum specified voltage
(power ramps must be monotonic)
15.000
MHz
0.05
500
ms
DC Electrical Characteristics
Min.
Typ.
IOH
Parameter
Output High Current
Name
VOH = VDD – 0.5, VDD = 3.3V
Description
12
24
IOL
Output Low Current
VOL = 0.5, VDD = 3.3V
12
24
CIN
Input Capacitance
IIZ
Input Leakage Current
IDD
Supply Current
Max.
mA
mA
7
pF
20
mA
5
Sum of Core and Output Current
Unit
mA
Notes:
1.
2.
Float XOUT if XIN is externally driven.
Rated for 10 years.
Document #: 38-07274 Rev. *A
Page 2 of 5
CY26118
PRELIMINARY
AC Electrical Characteristics (VDD = 3.3V)
Parameter[3]
DC
Min.
Typ.
Max.
Unit
Output Duty Cycle
Name
Duty Cycle is defined in Figure 1 50% of VDD
Description
45
50
55
%
t3
Rising Edge Slew Rate
Output Clock Rise Time 20% - 80% of VDD
0.8
1.8
V/ns
t4
Falling Edge Slew Rate
Output Clock Fall Time 80% to 20% of VDD
0.8
1.8
V/ns
t9
Clock Jitter
Peak-to-Peak period jitter
t10
PLL Lock Time
200
ps
3
ms
Note:
3. Not 100% tested.
t1
t3
t4
t2
80%
50%
20%
19.6608 MHz
19.6608 MHz
Figure 2. Rise and Fall Time Definitions
Figure 1. Duty Cycle Definition; DC = t2/t1
Test Circuit
AVDD
CLK out
0.1 µF
CLOAD
OUTPUTS
VDD
0.1 µF
GND
Ordering Information
Ordering Code
Package Name
Package Type
Operating Range
Operating Voltage
CY26118SC
S8
8-Pin SOIC
Commercial
3.3V
Document #: 38-07274 Rev. *A
Page 3 of 5
PRELIMINARY
CY26118
Pin Diagrams
8-Lead (150-Mil) SOIC S8
Document #: 38-07274 Rev. *A
Page 4 of 5
© Cypress Semiconductor Corporation, 2001. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use
of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize
its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress
Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges.
PRELIMINARY
CY26118
Document Title: CY26118 19.6608-MHz Clock Generator
Document Number: 38-07274
REV.
ECN NO.
Issue
Date
Orig. of
Change
**
110764
02/06/02
CKN
New Data Sheet
*A
121883
12/14/02
RBI
Power up requirements added to Operating Conditions Information
Document #: 38-07274 Rev. *A
Description of Change
Page 5 of 5