ICS85352AYILF IDT, Integrated Device Technology Inc, ICS85352AYILF Datasheet - Page 12

• Manufacturer Part Number: ICS85352AYILF
• Description: IC CLK MUX 2:1 LVPECL 48-TQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Multiplexerr

Specifications of ICS85352AYILF

• Number Of Circuits: 1
• Ratio - Input:output: 2:12
• Differential - Input:output: Yes/Yes
• Input: HCSL, LVDS, LVHSTL, LVPECL, SSTL
• Output: LVPECL
• Frequency - Max: 700MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• Frequency-max: 700MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 800-1174; 85352AYILF

ICS85352I Data Sheet
Termination for 2.5V LVPECL Outputs
Figure 5A and Figure 5B show examples of termination for 2.5V
LVPECL driver. These terminations are equivalent to terminating 50Ω
to V
Figure 5A. 2.5V LVPECL Driver Termination Example
Figure 5C. 2.5V LVPECL Driver Termination Example
ICS85352AYI REVISION C AUGUST 3, 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
12
level. The R3 in Figure 5B can be eliminated and the termination is
shown in Figure 5C.
Figure 5B. 2.5V LVPECL Driver Termination Example
V
CC
2.5V LVPECL Driver
= 2.5V
12 BIT, 2-TO-1, 3.3V, 2.5V LVPECL CLOCK BUFFER
50Ω
50Ω
©2010 Integrated Device Technology, Inc.
R1
50Ω
R2
50Ω
R3
18Ω
+
–
2.5V