8523BGLF Integrated Device Technology (Idt), 8523BGLF Datasheet - Page 12

• Manufacturer Part Number: 8523BGLF
• Description: Clock Driver 2-IN HSTL 20-Pin TSSOP Tube
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 8523BGLF

• Package: 20TSSOP
• Configuration: 1 x 2:1
• Input Signal Type: CML|HCSL|HSTL|LVDS|LVPECL|SSTL
• Maximum Output Frequency: 650 MHz
• Operating Supply Voltage: 3.3 V

ICS8523 Data Sheet
Schematic Example
Figure 5 shows a schematic example of the ICS8523. In this
example, the input is driven by an IDT HSTL driver. The decoupling
Figure 5. ICS8523 HSTL Buffer Schematic Example
ICS8523CG REVISION E JANUARY 24, 2011
1.8V
LVHSTL Driver
Zo = 50 Ohm
Zo = 50 Ohm
R9
50
R10
50
R11
1K
R12
1K
3.3V
3.3V
C1
0.1u
8523
10
1
2
3
4
5
6
7
8
9
U3
GND
CLK_EN
CLK_SEL
CLK
nCLK
PCLK
nPCLK
NC
NC
VDD
1.8V
C2
0.1u
C3
0.1u
VDDO
VDDO
nQ0
nQ1
nQ2
nQ3
Q0
Q1
Q2
Q3
20
19
18
17
16
15
14
13
12
11
1.8V
1.8V
12
capacitors should be physically located near the power pin. For
ICS8523, the unused clock outputs can be left floating.
Zo = 50
Zo = 50
Zo = 50
Zo = 50
Zo = 50
Zo = 50
Zo = 50
Zo = 50
R6
50
R8
50
R2
50
R4
50
LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-HSTL FANOUT BUFFER
R5
50
R7
50
R1
50
R3
50
+
-
+
-
+
-
+
-
©2011 Integrated Device Technology, Inc.