8536AG-01 IDT, Integrated Device Technology Inc, 8536AG-01 Datasheet - Page 13

• Manufacturer Part Number: 8536AG-01
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Driverr

Specifications of 8536AG-01

• Number Of Clock Inputs: 3
• Output Frequency: 700MHz
• Output Logic Level: LVPECL
• Operating Supply Voltage (min): 2.375V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: TSSOP
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 24
• Lead Free Status / RoHS Status: Not Compliant

T
The clock layout topology shown below is a typical termination
for LVPECL outputs. The two different layouts mentioned are
recommended only as guidelines.
FOUT and nFOUT are low impedance follower outputs that
generate ECL/LVPECL compatible outputs. Therefore, termi-
nating resistors (DC current path to ground) or current sources
must be used for functionality. These outputs are designed to
IDT
RTT =
ERMINATION FOR
ICS8536-01
LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER
™
/ ICS
((V
F
™
FOUT
IGURE
OH
3.3V, 2.5V LVPECL FANOUT BUFFER
+ V
OL
5A. LVPECL O
) / (V
1
3.3V LVPECL O
CC
Z
Z
– 2)) – 2
o
o
= 50
= 50
Z
o
50
UTPUT
T
RTT
ERMINATION
UTPUTS
50
V
CC
FIN
- 2V
13
drive 50
should be used to maximize operating frequency and minimize
signal distortion. Figures 5A and 5B show two different layouts
which are recommended only as guidelines. Other suitable
clock layouts may exist and it would be recommended that the
board designers simulate to guarantee compatibility across all
printed circuit and clock component process variations.
FOUT
F
IGURE
transmission lines. Matched impedance techniques
5B. LVPECL O
Z
Z
o
o
= 50
= 50
ICS8536AG-01 REV. A FEBRUARY 24, 2009
125
84
UTPUT
3.3V
125
84
T
ERMINATION
FIN