ICS85214 Datasheet, PDF (9/16 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-HSTL FANOUT BUFFER

Integrated
Circuit
Systems, Inc.
ICS85214
LOW SKEW, 1-TO-5
DIFFERENTIAL-TO-HSTL FANOUT BUFFER
SCHEMATIC EXAMPLE
Figure 4 shows a schematic example of the ICS85214. In this
example, the input is driven by an ICS HiPerClockS HSTL
driver. The decoupling capacitors should be physically located
near the power pin. For ICS85214, the unused outputs can be
left floating.
U1
1.8V
Zo = 50 Ohm
Zo = 50 Ohm
LVHSTL Driver
R9
50
R12
R10
50
1K
C2
0.1u
3.3V
11
12
13
14
15
16
17
18
19
1.8V 20
GND
CLK_SEL
nc
nCLK
CLK
SCLK
nc
VDD
nCLK_EN
VDDO
C1
0.1u ICS85214
R11
1K
10
nQ4
Q4
nQ3
Q3
nQ2
Q2
nQ1
9
8
7
6
5
4
3
Q1 ₂
nQ0 ₁
Q0
Zo = 50
Zo = 50
+
-
R2
R1
50
50
Zo = 50
Zo = 50
+
-
R4
R3
50
50
Zo = 50
Zo = 50
+
-
R8
R7
50
50
FIGURE 4. ICS85214 HSTL BUFFER SCHEMATIC EXAMPLE
85214AG
www.icst.com/products/hiperclocks.html
9
REV. A JULY 17, 2003