IDT IDT5V2305NRI

IDT5V2305
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
IDT5V2305
2.5V TO 3.3V HIGH
PERFORMANCE CLOCK
BUFFER
FEATURES:
DESCRIPTION:
• High performance 1:5 clock driver for general purpose applications
• Operates up to 170MHz at VDD = 2.5V
• Operates up to 200MHz at VDD = 3.3V
• Pin-to-pin skew < 50ps
• VDD range: 2.3V to 3.6V
• Output enable glitch suppression
Ω on-chip series dampening resistors
• 25Ω
• Available in TSSOP and VFQFPN packages
The IDT5V2305 is a high performance, low skew clock buffer that
operates up to 200MHz. One bank of five outputs provides low skew copies
of CLK. Through the use of control pin G, the outputs of bank Y(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 IDT5V2305 is characterized for operation from -40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
3
G
9
CONTROL LOGIC
Y0
25Ω
5
Y1
25Ω
16
CLK
6
Y2
25Ω
11
Y3
25Ω
13
Y4
25Ω
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
SEPTEMBER 2003
1
c
2003
Integrated Device Technology, Inc.
DSC 6177/11
IDT5V2305
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
GND
1
CLK
VDD
1
16
CLK
16
VDD
2
15
VDD
Y0
3
14
GND
4
Y1
VDD
2
15
VDD
VDD
Y0
3
14
NC
13
Y4
NC
4
13
Y4
5
12
GND
Y1
5
12
NC
Y2
6
11
Y3
Y2
6
11
Y3
VDD
7
10
VDD
VDD
7
10
NC
GND
8
9
G
GND
8
9
G
VDD
TSSOP
TOP VIEW
VFQFPN
TOP VIEW
CAPACITANCE(TA = +25°C, f = 1MHz, VIN = 0V)
ABSOLUTE MAXIMUM RATINGS(1)
Max
Unit
Parameter
–0.5 to +4.6
V
CIN
VI
Input Voltage(2)
–0.5 to VDD +0.5
V
VO
Output Voltage(2)
–0.5 to VDD +0.5
V
IIK
Input Clamp Current
VI < 0 or VI > VDD
±50
mA
IOK
Output Clamp Current
VO < 0 or VO > VDD
±50
mA
IO
Continuous Total Output Current
VO < 0 to VDD
±50
mA
Symbol
Description
VDD
Power Supply Voltage
TSTG
Storage Temperature
–65 to +150
Description
Input Capacitance
Min.
Typ.
Max.
Unit
—
2.5
—
pF
VI = 0V or VDD
FUNCTION TABLE(1)
Inputs
°C
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.
CLK
Y(0:4)
L
X
L
H
H
H
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
2
Output
G
IDT5V2305
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
PIN DESCRIPTION
TERMINAL
Symbol
I/O
G
I
Y(0:4)
CLK
GND
VDD
O
I
PWR
Description
Output Enable Control for Y(0:4) Outputs. This output enable is active HIGH. If this pin is Logic HIGH, the Y(0:4) clock outputs will follow the
input clock (CLK). If this pin is logic LOW, the Y(0:4) outputs will drive low independent of the state of CLK.
Buffered Output Clocks
Input Reference Frequency
Ground
DC Power Supply, 2.3V to 3.6V
RECOMMENDED OPERATING RANGE
Symbol
VDD
Description
Internal Power Supply Voltage
VIL
Input Voltage LOW
VIH
Input Voltage HIGH
VI
IOH
Input Voltage
Output Current HIGH
IOL
Output Current LOW
TA
Ambient Operating Temperature
Min.
2.3
VDD = 3V to 3.6V
VDD = 2.3V to 2.7V
VDD = 3V to 3.6V
VDD = 2.3V to 2.7V
Typ.
2.5
3.3
Max.
Unit
V
3.6
0.8
0.7
2
1.7
0
V
V
VDD
-12
-6
12
6
+85
VDD = 3V to 3.6V
VDD = 2.3V to 2.7V
VDD = 3V to 3.6V
VDD = 2.3V to 2.7V
-40
V
mA
mA
°C
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Symbol
VIK
IIN
IDD
Parameter
Input Voltage
Input Current
Static Device Current(1)
Test Conditions
VDD = 3V, IIN = -18mA
VI = 0V or VDD
CLK = 0V or VDD, IO = 0mA, VDD = 3.3V
Min.
Typ.
Max
- 1.2
±5
25
Unit
V
µA
µA
Typ.(1)
Max
Unit
NOTE:
1. For IDD over frequency, see TEST CIRCUIT AND WAVEFORMS.
DC ELECTRICAL CHARACTERISTICS - VDD = 3.3V ± 0.3V
Symbol
Parameter
VOH
HIGH level Output Voltage
VOL
LOW level Output Voltage
IOH
HIGH level Output Current
IOL
LOW level Output Current
Test Conditions
IOH = -100µA
VDD = Min. to Max.
VDD = 3V
IOH = -12mA
IOH = -6mA
IOH = 100µA
VDD = Min. to Max.
VDD = 3V
IOH = 12mA
IOH = 6mA
VO = 1V
VDD = 3V
VDD = 3.3V
VO = 1.65V
VDD = 3.6V
VO = 3.135V
VO = 1.95V
VDD = 3V
VDD = 3.3V
VO = 1.65V
VO = 0.4V
VDD = 3.6V
NOTE:
1. All typical values are at respective nominal VDD.
3
Min.
VDD - 0.2
2.1
2.4
V
0.2
0.8
0.55
V
-28
-36
mA
-14
28
36
mA
14
IDT5V2305
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS - VDD = 2.5V ± 0.2V
Symbol
VOH
Parameter
HIGH level Output Voltage
VOL
LOW level Output Voltage
IOH
HIGH level Output Current
IOL
LOW level Output Current
Test Conditions
VDD = Min. to Max.
IOH = -100µA
VDD = 2.3V
IOH = -6mA
VDD = Min. to Max.
IOH = 100µA
VDD = 2.3V
IOH = 6mA
VO = 1V
VDD = 2.3V
VDD = 2.5V
VO = 1.25V
VDD = 2.7V
VO = 2.375V
VO = 1.2V
VDD = 2.3V
VDD = 2.5V
VO = 1.25V
VO = 0.3V
VDD = 2.7V
Min.
VDD - 0.2
1.8
Typ.(1)
Max
Unit
V
0.2
0.55
V
-17
-25
mA
-10
17
25
mA
10
NOTE:
1. All typical values are at respective nominal VDD.
TIMING REQUIREMENTS OVER RECOMMENDED RANGE
Symbol
fCLK
Parameter
Clock Frequency
Test Conditions
VDD = 3V to 3.6V
VDD = 2.3V to 2.7V
4
Min.
0
0
Typ.
Max
200
170
Unit
MHz
IDT5V2305
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE VDD = 3.3V ± 0.3V(1)
Symbol
tPLH
tPHL
tSK(O)(2)
tSK(P)
tSK(PP)
tR
tF
tSU
tH
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, CL = 25pF
VO = 0.4V to 2V
VO = 2V to 0.4V
V(THRESHOLD) = VDD/2
Min.
1.3
Typ.(1)
0.7
0.7
0.1
0.4
Max
2.6
Unit
ns
50
300
500
2
2
ps
ps
ps
V/ns
V/ns
ns
Max
3.5
Unit
ns
75
700
600
1.4
1.4
ps
ps
ps
V/ns
V/ns
ns
NOTES:
1. All typical values are at respective nominal VDD.
2. This specification is only valid for equal loading of all outputs.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE VDD = 2.5V ± 0.2V(1)
Symbol
tPLH
tPHL
tSK(O)(2)
tSK(P)
tSK(PP)
tR
tF
tSU
tH
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, CL = 25pF
VO = 0.4V to 1.7V
VO = 1.7V to 0.4V
V(THRESHOLD) = VDD/2
NOTES:
1. All typical values are at respective nominal VDD.
2. This specification is only valid for equal loading of all outputs.
5
Min.
1.5
0.4
0.4
0.1
0.4
Typ.(1)
IDT5V2305
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
OUTPUT ENABLE GLITCH SUPPRESSION CIRCUIT
The purpose of the glitch suppression circuitry is to ensure the output enable sequence is synchronized with the clock input such that the output buffer will be
enabled on the next full period of the input clock (negative edge triggered by the input clock). The G input must be stable one tEN - time prior to the falling edge
of the CLK for predictable operation.
CLK
Gx
tEN
tDIS
Yx
G (tEN, tDIS) Relative to CLK↓
6
IDT5V2305
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
FROM OUTPUT
UNDER TEST
500Ω
CL
NOTES:
1. CL includes probe and jig capacitance.
2. All input pulses are supplied by generators having the following characteristics:
PRR ≤200MHz; ZO = 50Ω; tR < 1.2ns; tF < 1.2ns.
Test Load Circuit
VDD
CLK
50% VDD
0V
tPLH
tPHL
VOH
1.7V or 2V
Yx
0.4V
50% VDD
0.4V
VOL
tF
tR
Voltage Waveforms Propagation Delay Times
VDD
CLK
0V
VOH
Any Y
50% VDD
VOL
VOH
50% VDD
Any Y
VOL
tSK(O)
tSK(O)
Output Skew
VDD
CLK
50% VDD
0V
tPLH
tPHL
VOH
Yx
50% VDD
VOL
tSK(P) =
tPLH
tPHL
Pulse Skew
7
IDT5V2305
2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT
XXXXX
Device Type
XX
Package
X
Package
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
I
-40°C to +85°C (Industrial)
PG
NR
Thin Shrink Small Outline Package
Thermally Enhanced Plastic Very Fine
Pitch Quad Flat No Lead Package
5V2305
2.5V to 3.3V High Performance Clock Buffer
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com
8
for Tech Support:
[email protected]
(408) 654-6459