ICS8530DY IDT, Integrated Device Technology Inc, ICS8530DY Datasheet - Page 9

• Manufacturer Part Number: ICS8530DY
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of ICS8530DY

• Number Of Outputs: 32
• Operating Supply Voltage (max): 3.465V
• Operating Temp Range: 0C to 70C
• Propagation Delay Time: 2ns
• Operating Supply Voltage (min): 3.135V
• Mounting: Surface Mount
• Pin Count: 48
• Operating Supply Voltage (typ): 3.3V
• Package Type: LQFP
• Duty Cycle: 53%
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

Termination for 2.5V LVPECL Outputs
Figure 3A and Figure 3B show examples of termination for 2.5V
LVPECL driver. These terminations are equivalent to terminating 50Ω
to V
Figure 3A. 2.5V LVPECL Driver Termination Example
Figure 3C. 2.5V LVPECL Driver Termination Example
ICS8530 Data Sheet
ICS8530DY REVISION E SEPTEMBER 15, 2010
CC
V
V
CC
CC
– 2V. For V
2.5V LVPECL Driver
2.5V LVPECL Driver
= 2.5V
= 2.5V
CCO
= 2.5V, the V
50Ω
50Ω
50Ω
50Ω
CCO
R1
250Ω
2.5V
R2
62.5Ω
R1
50Ω
– 2V is very close to ground
R3
250Ω
R4
62.5Ω
R2
50Ω
+
+
–
–
2.5V
2.5V
9
level. The R3 in Figure 3B can be eliminated and the termination is
shown in Figure 3C.
Figure 3B. 2.5V LVPECL Driver Termination Example
LOW SKEW, 1-TO-16, DIFFERENTIAL-TO-2.5V LVPECL FANOUT BUFFER
V
CC
2.5V LVPECL Driver
= 2.5V
50Ω
50Ω
©2010 Integrated Device Technology, Inc.
R1
50Ω
R2
50Ω
R3
18Ω
+
–
2.5V