IDT5V2310
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
2.5V TO 3.3V HIGH
PERFORMANCE CLOCK
BUFFER
FEATURES:
• High performance 1:10 clock driver for general purpose
applications
• Operates up to 200MHz at V
DD
= 3.3V
• Pin-to-pin skew < 100ps
• V
DD
range: 2.3V to 3.6V
• Output enable glitch suppression
• Distributes one clock input to two banks of five outputs
• 25Ω on-chip series dampening resistors
Ω
• Available in TSSOP and VFQFPN packages
IDT5V2310
DESCRIPTION:
The IDT5V2310 is a high performance, low skew clock buffer that
operates up to 200MHz. Two banks of five outputs each provide low skew
copies of CLK. Through the use of control pins 1G and 2G, the outputs of
banks 1Y(0:4) and 2Y(0:4) can be placed in a low state regardless of CLK
input. The device operates in 2.5V and 3.3V environments. The built-in
output enable glitch suppression ensures a synchronized output enable
sequence to distribute full period clock signals.
The IDT5V2310 is characterized for operation from -40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
3
25Ω
1
Y
0
4
25Ω
1
Y
1
5
25Ω
1
Y
2
8
25Ω
1
Y
3
9
25Ω
11
1
Y
4
1G
LOGIC CONTROL
13
2G
LOGIC CONTROL
21
24
2
Y
0
CLK
25Ω
20
25Ω
2
Y
1
17
25Ω
2
Y
2
16
25Ω
2
Y
3
12
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
2
Y
4
25Ω
INDUSTRIAL TEMPERATURE RANGE
1
c
2004
Integrated Device Technology, Inc.
NOVEMBER 2004
DSC 6173/24
IDT5V2310
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
GND
V
DD
1
Y
0
1
Y
1
1
Y
2
1
2
3
4
5
6
7
8
9
10
11
12
TSSOP
TOP VIEW
24
23
22
21
20
19
18
17
16
15
14
13
CLK
V
DD
V
DD
1
20
19
18
17
16
GND
15
14
13
12
V
DD
V
DD
2
Y
0
2
Y
1
2
Y
2
2
Y
3
V
DD
2
Y
0
2
Y
1
V
DD
1
Y
0
1
Y
1
1
Y
2
1
Y
3
1
Y
4
2
3
4
5
6
7
8
9
10
11
GND
GND
1
Y
3
1
Y
4
GND
GND
2
Y
2
2
Y
3
V
DD
1
G
CLK
V
DD
V
DD
V
DD
1G
2
Y
4
V
DD
V
DD
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
V
DD
V
I
V
O
I
IK
I
OK
I
O
T
STG
Description
Power Supply Voltage
Input Voltage
(2)
Output Voltage
(2)
Input Clamp Current
V
I
< 0 or V
I
> V
DD
Output Clamp Current
V
O
< 0 or V
O
> V
DD
Continuous Total Output Current
V
O
< 0 to V
DD
Storage Temperature
Max
–0.5 to +4.6
–0.5 to V
DD
+0.5
–0.5 to V
DD
+0.5
Unit
V
V
V
mA
mA
mA
°C
CAPACITANCE
(T
A
= +25°C, f = 1MHz, V
IN
= 0V)
Parameter
C
IN
Description
Input Capacitance
V
I
= 0V or V
DD
Min.
—
Typ.
2.5
Max.
—
Unit
pF
±
50
±
50
±
50
–65 to +150
FUNCTION TABLE
(1)
Inputs
1G
L
H
L
H
2G
L
L
H
H
CLK
X
H
H
H
1
Y
(0:4)
2
Y
4
VFQFPN
TOP VIEW
2
G
2G
Outputs
2
Y
(0:4)
L
H
L
H
L
L
H
H
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
2. Not to exceed 4.6V.
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
2
IDT5V2310
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
PIN DESCRIPTION
TERMINAL
Symbol
I/O
1G
I
2G
1
Y
(0:4)
2
Y
(0:4)
I
O
O
I
PWR
CLK
GND
V
DD
Description
Output Enable Control for
1
Y
(0:4)
Outputs. This output enable is active HIGH. If this pin is Logic HIGH, the
1
Y
(0:4)
clock outputs will follow the
input clock (CLK). If this pin is logic LOW, the
1
Y
(0:4)
outputs will drive low independent of the state of CLK.
Output Enable Control for
2
Y
(0:4)
Outputs. This output enable is active HIGH. If this pin is Logic HIGH, the
2
Y
(0:4)
clock outputs will follow the
input clock (CLK). If this pin is logic LOW, the
2
Y
(0:4)
outputs will drive low independent of the state of CLK.
Buffered Output Clocks
Buffered Output Clocks
Input Reference Frequency
Ground
DC Power Supply, 2.3V to 3.6V
RECOMMENDED OPERATING RANGE
Symbol
V
DD
V
IL
V
IH
V
I
I
OH
I
OL
T
A
Description
Internal Power Supply Voltage
Input Voltage LOW
Input Voltage HIGH
Input Voltage
Output Current HIGH
Output Current LOW
Ambient Operating Temperature
V
DD
= 3V to 3.6V
V
DD
= 2.3V to 2.7V
V
DD
= 3V to 3.6V
V
DD
= 2.3V to 2.7V
V
DD
= 3V to 3.6V
V
DD
= 2.3V to 2.7V
V
DD
= 3V to 3.6V
V
DD
= 2.3V to 2.7V
-40
Min.
2.3
Typ.
2.5
3.3
Max.
3.6
0.8
0.7
Unit
V
V
V
V
DD
-12
-6
12
6
+85
V
mA
mA
°C
2
1.7
0
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Symbol
V
IK
I
IN
I
DD
Parameter
Input Voltage
Input Current
Static Device Current
(1)
Test Conditions
V
DD
= 3V, I
IN
= -18mA
V
I
= 0V or V
DD
CLK = 0V or V
DD
, I
O
= 0mA, V
DD
= 3.3V
Min.
Typ.
Max
- 1.2
±5
25
Unit
V
µA
µA
NOTE:
1. For I
DD
over frequency, see TEST CIRCUIT AND WAVEFORMS.
DC ELECTRICAL CHARACTERISTICS - V
DD
= 3.3V ± 0.3V
Symbol
V
OH
Parameter
HIGH level Output Voltage
Test Conditions
I
OH
= -100µA
V
DD
= Min. to Max.
V
DD
= 3V
I
OH
= -12mA
I
OH
= -6mA
I
OH
= 100µA
V
DD
= Min. to Max.
V
DD
= 3V
I
OH
= 12mA
I
OH
= 6mA
V
O
= 1V
V
DD
= 3V
V
DD
= 3.3V
V
O
= 1.65V
V
DD
= 3.6V
V
O
= 3.135V
V
O
= 1.95V
V
DD
= 3V
V
DD
= 3.3V
V
O
= 1.65V
V
O
= 0.4V
V
DD
= 3.6V
Min.
V
DD
- 0.2
2.1
2.4
Typ.
(1)
Max
Unit
V
0.2
0.8
0.55
-28
-36
-14
28
36
14
mA
mA
V
OL
LOW level Output Voltage
V
I
OH
HIGH level Output Current
I
OL
LOW level Output Current
NOTE:
1. All typical values are at respective nominal V
DD
.
3
IDT5V2310
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS - V
DD
= 2.5V ± 0.2V
Symbol
V
OH
V
OL
Parameter
HIGH level Output Voltage
LOW level Output Voltage
Test Conditions
V
DD
= Min. to Max.
I
OH
= -100µA
V
DD
= 2.3V
I
OH
= -6mA
V
DD
= Min. to Max.
I
OH
= 100µA
V
DD
= 2.3V
I
OH
= 6mA
V
O
= 1V
V
DD
= 2.3V
V
DD
= 2.5V
V
O
= 1.25V
V
DD
= 2.7V
V
O
= 2.375V
V
O
= 1.2V
V
DD
= 2.3V
V
DD
= 2.5V
V
O
= 1.25V
V
O
= 0.3V
V
DD
= 2.7V
Min.
V
DD
- 0.2
1.8
Typ.
(1)
Max
Unit
V
V
0.2
0.55
-17
-25
-10
17
25
10
I
OH
HIGH level Output Current
mA
I
OL
LOW level Output Current
mA
NOTE:
1. All typical values are at respective nominal V
DD
.
TIMING REQUIREMENTS OVER RECOMMENDED RANGE
Symbol
f
CLK
Parameter
Clock Frequency
Test Conditions
V
DD
= 3V to 3.6V
V
DD
= 2.3V to 2.7V
Min.
0
0
Typ.
Max
200
170
Unit
MHz
4
IDT5V2310
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE -
V
DD
= 3.3V ± 0.3V
(1)
Symbol
t
PLH
t
PHL
t
SK
(
O
)
(2)
t
SK
(
P
)
t
SK
(
PP
)
t
R
t
F
t
SU
t
H
Parameter
CLK to Yx
Output Skew, Yx to Yx
Pulse Skew
Part-to-Part Skew
Rise Time
Fall Time
G before CLK↓
G after CLK↓
Test Conditions
f = 0MHz to 200MHz
Min.
1.3
Typ.
(1)
Max
2.8
100
250
500
2
2
Unit
ns
ps
ps
ps
V/ns
V/ns
ns
V
O
= 0.4V to 2V
(3)
V
O
= 2V to 0.4V
(3)
V(
THRESHOLD
) = V
DD
/2
0.7
0.7
0.1
0.4
NOTES:
1. All typical values are at respective nominal V
DD
.
2. This specification is only valid for equal loading of all outputs.
3. Measured at 100MHz.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE -
V
DD
= 2.5V ± 0.2V
(1)
Symbol
t
PLH
t
PHL
t
SK
(
O
)
(2)
t
SK
(
P
)
t
SK
(
PP
)
t
R
t
F
t
SU
t
H
Parameter
CLK to Yx
Output Skew, Yx to Yx
Pulse Skew
Part-to-Part Skew
Rise Time
Fall Time
G before CLK↓
G after CLK↓
Test Conditions
f = 0MHz to 170MHz
Min.
1.5
Typ.
(1)
Max
3.5
100
400
600
1.4
1.4
Unit
ns
ps
ps
ps
V/ns
V/ns
ns
V
O
= 0.4V to 1.7V
(3)
V
O
= 1.7V to 0.4V
(3)
V(
THRESHOLD
) = V
DD
/2
0.5
0.5
0.1
0.4
NOTES:
1. All typical values are at respective nominal V
DD
.
2. This specification is only valid for equal loading of all outputs.
3. Measured at 100MHz.
5
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