ICS853054AGT IDT, Integrated Device Technology Inc, ICS853054AGT Datasheet - Page 9

• Manufacturer Part Number: ICS853054AGT
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Multiplexerr

Specifications of ICS853054AGT

• Number Of Clock Inputs: 4
• Mode Of Operation: Differential
• Output Frequency: 3200MHz
• Output Logic Level: ECL/LVPECL
• Operating Supply Voltage (min): -2.375/2.375V
• Operating Supply Voltage (typ): -2.5/-3.3/3.3V
• Operating Supply Voltage (max): -3.465/3.465V
• Package Type: TSSOP
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Signal Type: CML/LVDS/LVPECL/SSTL
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Not Compliant

IDT™ / ICS™ 4:1, DIFFERENTIAL-TO-3.3V OR 2.5V LVPECL/ECL CLOCK MULTIPLEXER
ICS853054
4:1, DIFFERENTIAL-TO-3.3V OR 2.5V LVPECL/ECL CLOCK MULTIPLEXER
The clock layout topology shown below is a typical termi-
nation for LVPECL outputs. The two different layouts men-
tioned 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
T
853054AG
RTT =
ERMINATION FOR
((V
F
FOUT
OH
IGURE
+ V
OL
Integrated
Circuit
Systems, Inc.
3A. LVPECL O
) / (V
1
CC
3.3V LVPECL O
Z
Z
– 2)) – 2
o
o
= 50
= 50
Z
o
50
UTPUT
T
ERMINATION
RTT
www.icst.com/products/hiperclocks.html
50
UTPUTS
V
CC
FIN
- 2V
9
9
drive 50 transmission lines. Matched impedance techniques
should be used to maximize operating frequency and mini-
mize signal distortion. Figures 3A and 3B 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 varia-
tions.
FOUT
4:1, D
LVPECL/ECL C
F
IGURE
3B. LVPECL O
IFFERENTIAL
Z
Z
o
o
= 50
= 50
125
84
UTPUT
-
LOCK
TO
3.3V
-3.3V
T
125
84
ERMINATION
M
REV. A JANUARY 5, 2006
ULTIPLEXER
FIN
OR
2.5V
ICS853054
TSD