PI6C49X0204B-A [PERICOM]
Low Skew, 1-TO-4 LVCMOS/LVTTL Fanout Buffer;
| 型号： | PI6C49X0204B-A |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | Low Skew, 1-TO-4 LVCMOS/LVTTL Fanout Buffer |
| 文件： | 总7页 (文件大小：1139K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI6C49X0204B-A
Low Skew, 1-TO-4 LVCMOS/LVTTL
Fanout Buffer
Features
Description
ꢀÎFour LVCMOS / LVTTL outputs
ꢀÎLVCMOS / LVTTL clock input
The PI6C49X0204B-A is a low skew, 1-to-4 Fanout Buffer.
Guaranteed output and part-to-part skew characteristics make the
PI6C49X0204B-A ideal for those clock distribution applications
demanding well defined performance and repeatability.
ꢀÎCLK can accept the following input levels: LVCMOS, LVTTL
ꢀÎMaximum output frequency: 200MHz
ꢀÎAdditive phase jitter, RMS: 0.06ps (typical) @ 3.3V
ꢀÎOutput skew: 45ps (maximum) @ 3.3V
ꢀÎPart-to-part skew: 500ps (maximum)
ꢀÎSmall 8 lead SOIC package saves board space
ꢀÎ3.3V core supply, 3.3V or 2.5V output supply
ꢀÎ0°C to 70°C ambient operating temperature
Block Diagram
Pin Assignment
Q0
Q1
V
DDO
Q3
Q2
Q1
1
2
3
4
8
7
6
5
V
DD
Pulldown
CLK
CLK
GND
Q2
Q3
Q0
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PI6C49X0204B-A
Low Skew, 1-TO-4 LVCMOS/LVTTL Fanout Buffer
Pin Descriptions
Pin#
Pin Name
Pin Type
Power
Pin Description
Output supply pin.
Positive supply pin.
1
2
3
4
5
6
7
8
VDDO
VDD
CLK
GND
Q0
Power
Input
Pulldown
LVCMOS / LVTTL clock input.
Power
Power supply ground.
Output
Output
Output
Output
Single clock output. LVCMOS / LVTTL interface levels.
Single clock output. LVCMOS / LVTTL interface levels.
Single clock output. LVCMOS / LVTTL interface levels.
Single clock output. LVCMOS / LVTTL interface levels.
Q1
Q2
Q3
Note: Pulldown refers to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Pin Characteristics
Symbol
CIN
Parameter
Input Capacitance
Test Conditions
VDD , VDDO = 3.465V
VDD , VDDO >2.5V
Min.
Typical
4
Max.
15
Units
pF
Power Dissipation Capacitance
(per output)
CPD
pF
RPULLDOWN
ROUT
Input Pulldown Resistor
Output Impedance
51
7
kΩ
Ω
5
12
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PI6C49X0204B-A
Low Skew, 1-TO-4 LVCMOS/LVTTL Fanout Buffer
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.)
Note:
Stresses beyond those listed under Absolute Maximum
Ratings may cause permanent damage to the device.
These ratings are stress specifications only. Functional
operation of product at these conditions or any condi-
tions beyond those listed in the DC Characteristics or
Supply Voltage, VDD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6V
Inputs, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to VDD +0.5V
Output, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to VDDO +0.5V
Package Thermal Impedance, θJA . . . . . . . . . . . . 112.7°C/W (0 lfpm)
AC Characteristics is not implied. Exposure to absolute
maximum rating conditions for extended periods may
affect product reliability.
Storage Temperature, TSTG . . . . . . . . . . . . . . . . . . . . . . -65°C to 150°C
Table 3A. Power Supply DC Characteristics, TA = 0°C TO 70°C
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
VDD
Core Supply Voltage
3.135
3.135
2.375
3.3
3.3
2.5
3.465
3.465
2.625
22
3.3V Operation
3.3V Supply
V
VDDO
IDD
Output Power Supply Voltage
Power Supply Current
V
2.5V Supply
mA
mA
mA
7
25MHz
IDDO
Output Supply Current
45
200MHz
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PI6C49X0204B-A
Low Skew, 1-TO-4 LVCMOS/LVTTL Fanout Buffer
LVCMOS / LVTTL DC CHARACTERISTICS,TA = 0°C to 70°C
Symbol
Parameter
Conditions
Min.
2.3
Typ.
Max.
Units
VDD+0.3
VDD+0.3
0.8
VDD = 3.3V
VIH
Input High Voltage
V
1.7
VDD = 2.5V
-0.3
-0.3
VDD = 3.3V
VIL
Input Low Voltage
V
0.8
VDD = 2.5V
IIH
IIL
Input High Current
Input Low Current
VDD = VIN = 3.465V
VDD = 3.465V, VIN = 0V
150
μA
μA
V
-5
50Ω to VDDO /2 2.6
VDDO =
3.3V
IOH = -100μA
2.9
V
VOH
Output High Voltage
Output High Voltage
50Ω to VDDO /2 1.8
V
VDDO =
2.5V
IOH = -100μA
2.2
V
50Ω to VDDO /2
IOH = -100μA
0.5
0.2
0.5
0.2
V
VDDO =
3.3V
V
VOL
50Ω to VDDO /2
IOH = -100μA
V
VDDO =
2.5V
V
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PI6C49X0204B-A
Low Skew, 1-TO-4 LVCMOS/LVTTL Fanout Buffer
AC CHARACTERISTICS, VDD = 3.3V ꢀ5% TA = 0°C to 70°C
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
VDDO = 3.3V
VDDO = 2.5V
200
200
MHz
fMAX
Output Frequency
VDDO = 3.3V, IJ
200MHz
1.9
2.3
2.35
2.8
3.3
Propagation Delay, Low-to-High;
NOTE 1
tpLH
ns
VDDO = 2.5V, IJ
200MHz
tsk(o)
Output Skew; NOTE 2
25
100
500
800
850
800
850
ps
ps
tsk(pp)
Part-to-Part Skew; NOTE 3
250
VDDO = 3.3V
VDDO = 2.5V
VDDO = 3.3V
VDDO = 2.5V
280
280
280
280
tR
tF
Output Rise Time NOTE 4
Output Fall Time NOTE 4
ps
ps
VDDO = 3.3V, IJ
133MHz
45
40
45
40
55
60
55
60
%
%
%
%
ps
ps
VDDO = 3.3V, 133MHz
< IJ 200MHz
odc
Output Duty Cycle
Additive RMS Jitter
VDDO = 2.5V, IJ
133MHz
VDDO = 2.5V, 133MHz
< IJ 200MHz
156.25MHz (@12kHz to
20MHz)
0.06
0.04
tjit
125MHz (@12kHz to
20MHz)
Parameters measured at f MAX unless otherwise noted.
NOTE 1: Measured from VDD /2 of the input to VDDO /2 of the output.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at VDDO /2.
NOTE 3: Defined as skew between outputs on different devices operating at the same supply voltages and with equal load
conditions. Using the same type of inputs on each device, the outputs are measured at VDDO /2.
NOTE 4: Defined from 20% to 80%
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PI6C49X0204B-A
Low Skew, 1-TO-4 LVCMOS/LVTTL Fanout Buffer
Phase Noise and Additive Jitter
Output phase noise (Right plot) vs Input Phase noise (Leꢀ plot)
Additive jitter is calculated at ~60.2fs RMS (12kHz to 20MHz). Additive jitter = √(Output jitter2 - Input jitter2)
Configuration Test Load Board Termination for LVCMOS Outputs
3.3V ±5%
V
V
DD
DDO
15pF
GND
Thermal Information
Symbol
Description
Condition
Still air
ΘJA
ΘJC
157 °C/W
42 °C/W
Junction-to-ambient thermal resistance
Junction-to-case thermal resistance
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PI6C49X0204B-A
Low Skew, 1-TO-4 LVCMOS/LVTTL Fanout Buffer
DOCUMENT CONTROL NO.
PD - 1001
8
REVISION: F
DATE: 03/09/05
.149
.157
3.78
3.99
0.25
0.50
.0099
.0196
x 45˚
1
0.19
0.25
.0075
.0098
.189
.196
4.80
5.00
0-8˚
0.40 .016
1.27
.050
.2284
.2440
5.80
6.20
.016
.026
0.406
0.660
1.35
1.75
.053
.068
SEATING PLANE
REF
.050
BSC
0.10
0.25
.0040
.0098
1.27
.013
.020
0.330
0.508
Pericom Semiconductor Corporation
3545 N. 1st Street, San Jose, CA 95134
1-800-435-2335 • www.pericom.com
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
Notes:
DESCRIPTION: 8-Pin, 150-Mil Wide, SOIC
PACKAGE CODE: W
1) Controlling dimensions in millimeters.
2) Ref: JEDEC MS-012D/AA
Note:
For latest package info, please check: http://www.pericom.com/products/packaging/mechanicals.php
•
Ordering Information(1-3)
Ordering Code
Package Code
Package Description
PI6C49X0204B-AWE
W
8-pin, Pb-free & Green, SOIC
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
2. E = Pb-free and Green
3. Adding an X suffix = Tape/Reel
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
www.pericom.com PI6C49X0204B-A Rev A 12/05/13
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