ICS8305AGILF View Datasheet(PDF) - Integrated Circuit Systems
Part Name
Description
MFG CO.
ICS8305AGILF
Integrated Circuit Systems
'ICS8305AGILF' PDF : 15 Pages View PDF
Integrated
Circuit
Systems, Inc.
ICS8305I
LOW SKEW, 1-TO-4, MULTIPLEXED DIFFERENTIAL/
LVCMOS-TO-LVCMOS/LVTTL FANOUT BUFFER
SCHEMATIC EXAMPLE
This application note provides general design guide using
ICS8305I LVCMOS buffer. Figure 4 shows a schematic example
of the ICS8305I LVCMOS clock buffer. In this example, the input
is driven by an LVCMOS driver. CLK_EN is set at logic low to
select LVCMOS_CLK input.
VDD
VDD
R4
R5
1K
1K
Ro ~ 7 Ohm
Zo = 50
R3
43
3,.3V LVCMOS
VDD
R1
43
U1
1
2
GND
Q0
16
15
3 OE
VDDO 14
4 VDD
Q1 13
5
6
7
8
CLK_EN
CLK
nC LK
CLK_SEL
LVC MOS_CLK
GN D
Q2
VDDO
Q3
GN D
12
11
10
9
R2
43
R6
I CS8305
1K
(U 1, 3)
(U 1, 11)
VDD
(U 1, 15)
VD D = 3 .3 V
C1
0.1u
C2
0. 1u
C3
0. 1u
Zo = 50
Zo = 50
LVCMOS Receiv er
LVCMOS Receiv er
FIGURE 4. EXAMPLE ICS8305I LVCMOS CLOCK OUTPUT BUFFER SCHEMATIC
RELIABILITY INFORMATION
TABLE 6. θJAVS. AIR FLOW TABLE FOR 16 LEAD TSSOP
θJA by Velocity (Linear Feet per Minute)
Single-Layer PCB, JEDEC Standard Test Boards
Multi-Layer PCB, JEDEC Standard Test Boards
0
137.1°C/W
89.0°C/W
200
118.2°C/W
81.8°C/W
500
106.8°C/W
78.1°C/W
NOTE: Most modern PCB designs use multi-layered boards.The data in the second row pertains to most designs.
TRANSISTOR COUNT
The transistor count for ICS8305I is: 459
8305AGI
www.icst.com/products/hiperclocks.html
12
REV. B MAY 19, 2005
Share Link: 