ICS8523BG IDT, Integrated Device Technology Inc, ICS8523BG Datasheet - Page 10

• Manufacturer Part Number: ICS8523BG
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Driverr

Specifications of ICS8523BG

• Number Of Clock Inputs: 2
• Mode Of Operation: Differential
• Output Frequency: 650MHz
• Output Logic Level: HSTL
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (typ): 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: 20
• Lead Free Status / RoHS Status: Not Compliant

LVPECL Clock Input Interface
The PCLK /PCLK accepts LVPECL, CML, SSTL and other
differential signals. Both V
V
examples for the HiPerClockS PCLK/PCLK input driven by the
Figure 4A. HiPerClockS PCLK/PCLK Input
Figure 4C. HiPerClockS PCLK/nPCLK Input
Figure 4E. HiPerClockS PCLK/PCLK Input
IDT™ / ICS™ HSTL FANOUT BUFFER
CMR
ICS8523
LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-HSTL FANOUT BUFFER
2.5V
3.3V
input requirements. Figures 4A to 4E show interface
3.3V
LVPECL
SSTL
CML
Driven by an Open Collector CML Driver
Driven by a 3.3V LVPECL Driver
Driven by an SSTL Driver
Zo = 60Ω
Zo = 60Ω
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
SWING
and V
R3
120
2.5V
R3
125
3.3V
R1
120
R1
84
R1
50
3.3V
OH
R4
120
R4
125
R2
120
must meet the V
R2
84
R2
50
PCLK
nPCLK
PCLK
nPCLK
PCLK
nPCLK
3.3V
3.3V
3.3V
HiPerClockS
Input
HiPerClockS
PCLK/nPCLK
HiPerClockS
PCLK/nPCLK
PP
and
10
most common driver types. The input interfaces suggested here
are examples only. If the driver is from another vendor, use their
termination recommendation. Please consult with the vendor of the
driver component to confirm the driver termination requirements.
Figure 4B. HiPerClockS PCLK/PCLK Input
Figure 4D. HiPerClockS PCLK/PCLK Input Driven by
Figure 4F. HiPerClockS PCLK/PCLK Input Driven by
3.3V
3.3V
3.3V LVPECL
3.3V
LVDS
CML Built-In Pullup
R5
100 - 200
Driven by a Built-In Pullup CML Driver
a 3.3V LVPECL Driver with AC Couple
a 3.3V LVDS Driver
Zo = 50Ω
Zo = 50Ω
R6
100 - 200
Zo = 50Ω
Zo = 50Ω
R5
100
Zo = 50Ω
Zo = 50Ω
ICS8523CG REV. D MARCH 13, 2007
C1
C2
C1
C2
R3
84
3.3V
R1
125
R3
1k
3.3V
R1
100
R1
1k
R4
84
R2
125
R4
1k
R2
1k
PCLK
nPCLK
PCLK
nPCLK
3.3V
PCLK
nPCLK
HiPerClockS
PCLK/nPCLK
3.3V
3.3V
HiPerClockS
PCLK/nPCLK
HiPerClockS
PCLK/nPCLK