ICS8547 Datasheet, PDF (10/12 Pages) Integrated Circuit Systems – HEX, LOW SKEW, 1-TO-2 DIFFERENTIAL-TO-LVDS CLOCK BUFFERS

Integrated
Circuit
Systems, Inc.
ICS8547
HEX, LOW SKEW, 1-TO-2
DIFFERENTIAL-TO-LVDS CLOCK BUFFERS
LVDS DRIVER TERMINATION
Figure 6 shows typical termination for LVDS driver in character-
istic impedance of 100Ω differential (50Ω single) transmission
line environment. For buffer with multiple LDVS driver, it is rec-
ommended to terminate the unused outputs.
3.3V
Zo = 50
3.3V
LVDS_Driver
Zo = 50
+
R1
100
-
FIGURE 6. TYPICAL LVDS DRIVER TERMINATION
RELIABILITY INFORMATION
TABLE 6. θ_JAVS. AIR FLOW TABLE
q_JA by Velocity (Linear Feet per Minute)
Single-Layer PCB, JEDEC Standard Test Boards
Multi-Layer PCB, JEDEC Standard Test Boards
0
67.8°C/W
47.9°C/W
200
55.9°C/W
42.1°C/W
500
50.1°C/W
39.4°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 ICS8547 is: 1117
ICS8547AY
www.icst.com/products/hiperclocks.html
10
REV. A FEBRUARY 4, 2003