HD151TS304ARP
Spread Spectrum Clock for EMI Solution
REJ03D0020-0400Z
(Previous ADE-205-691C(Z))
Rev.4.00
May.19.2003
Description
The HD151TS304A is a high-performance Spread Spectrum Clock modulator. It is suitable for low EMI
solution.
Features
Supports 10 MHz to 60 MHz operation. (Designed for XIN = 24 MHz and 48 MHz)
1 copy of clock out with spread spectrum modulation @3.3 V
1 copy of reference clock @3.3 V
Programmable spread spectrum modulation (±0.25%,
±0.5%, ±1.5%
central spread modulation and
spread spectrum disable mode.)
•
SOP–8pin
•
Pin to pin compatible with HD151TS304RP
•
•
•
•
Key Specifications
•
•
•
•
•
•
Supply voltages : VDD = 3.3 V±0.165 V
Ta = 0 to 70°C operating range
Clock output duty cycle = 50±5%
Cycle to cycle jitter =
±250
ps typ.
Output slew rate = 0.8V/ns min.
Ordering Information
Package Type
SOP-8 pin (JEDEC)
Package Code
FP-8DC
Package
Abbreviation
RP
Taping
Abbreviation (Quantity)
EL (2,500 pcs / Reel)
Part Name
HD151TS304ARPEL
Note: Please consult the sales office for the above package availability.
Rev.4.00, May.19.2003, page 1 of 12
HD151TS304ARP
Block Diagram
VDD
GND
CLKOUT
XIN
OSC
XOUT
R=1 MΩ
1/n
SSC Modulator
SEL0
1/m
Synthesizer
SSCCLKOUT
R=100 kΩ
Mode Control
SEL1
R=100 kΩ
Pin Arrangement
SSCCLKOUT
1
8
SEL1
VDD
2
7
CLKOUT
GND
3
6
SEL0
XIN
4
5
XOUT
(Top view)
Rev.4.00, May.19.2003, page 2 of 12
HD151TS304ARP
SSC Function Table
SEL1 :0
00
01
10
11
Spread Percentage
±0.5%
±1.5%
SSC OFF
±0.25%
Note:
±1.5%
SSC is selected for default by internal pull-up & down resistors.
Clock Frequency Table
XIN(MHz)
48
24
SSCCLKOUT(MHz)
48
*1
24
*1
CLKOUT(MHz)
48
*2
24
*2
Notes: 1. With spread spectrum modulation.
2. Without spread spectrum modulation.
Pin Descriptions
Pin name
GND
VDD
CLKOUT
SSCCLKOUT
XIN
XOUT
SEL0
SEL1
No.
3
2
7
1
4
5
6
8
Type
Ground
Power
Output
Output
Input
Output
Input
Input
Description
GND pin
Power supplies pin. Normally 3.3 V.
Normally 3.3 V reference clock output.
Spread spectrum modulated clock output.
Oscillator input.
Oscillator output.
SSC mode select pin. LVCMOS level input.
Pull-up by internal resistor. (100 kΩ).
SSC mode select pin. LVCMOS level input.
Pull–down by internal resistor (100 kΩ).
Rev.4.00, May.19.2003, page 3 of 12
HD151TS304ARP
Absolute Maximum Ratings
Item
Supply voltage
Input voltage
Output voltage
*1
Input clamp current
Output clamp current
Continuous output current
Maximum power dissipation
at Ta = 55°C (in still air)
Storage temperature
Notes:
T
stg
Symbol
VDD
V
I
V
O
I
IK
I
OK
I
O
Ratings
–0.5 to 4.6
–0.5 to 4.6
–0.5 to
VDD+0.5
–50
–50
±50
0.7
–65 to +150
Unit
V
V
V
mA
mA
mA
W
°C
V
I
< 0
V
O
< 0
V
O
= 0 to VDD
Conditions
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any
other conditions beyond those indicated under “recommended operating conditions” is not implied.
Exposure to absolute maximum rated conditions for extended periods may affect device reliability.
1. The input and output negative voltage ratings may be exceeded if the input and output clamp
current ratings are observed.
Recommended Operating Conditions
Item
Supply voltage
DC input signal voltage
High level input voltage
Low level input voltage
Operating temperature
Input clock duty cycle
V
IH
V
IL
T
a
Symbol
VDD
Min
3.135
–0.3
2.0
–0.3
0
45
Typ
3.3
—
—
—
—
50
Max
3.465
VDD+0.3
VDD+0.3
0.8
70
55
Unit Conditions
V
V
V
V
°C
%
Rev.4.00, May.19.2003, page 4 of 12
HD151TS304ARP
DC Electrical Characteristics
Ta = 0 to 70°C, VDD = 3.3 V±5%
Item
Input low voltage
Input high voltage
Input current
Symbol
V
IL
V
IH
I
I
Min
—
2.0
—
—
Typ
—
—
—
—
Max
0.8
—
±10
±100
Unit
V
V
µA
V
I
= 0 V or 3.465 V,
VDD = 3.465 V, XIN pin
V
I
= 0 V or 3.465 V,
VDD = 3.465 V,
SEL0, SEL1 pins
V / ns 20% – 80%
pF
mA
SEL0, SEL1
XIN = 24 MHz, C
L
= 0 pF,
VDD = 3.3 V
Test Conditions
Input slew rate
Input capacitance
Operating current
C
I
1
—
—
—
—
7
4
4
—
DC Electrical Characteristics / Clock Output & SSC Clock Output
Ta = 0 to 70°C, VDD = 3.3 V±5%
Item
Output voltage0
1
Symbol Min
V
OH
V
OL
I
OH
I
OL
3.1
—
—
—
Typ
—
—
–30
30
Max
—
50
—
—
Unit
V
mV
mA
Test Conditions
I
OH
= –1 mA, VDD = 3.3 V
I
OL
= 1 mA, VDD = 3.3 V
V
OH
= 1.5 V
V
OL
= 1.5 V
Output current*
Note:
1. Parameters are target of design. Not 100% tested in production.
Rev.4.00, May.19.2003, page 5 of 12
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