8538BG-31LF IDT, 8538BG-31LF Datasheet - Page 2

• Manufacturer Part Number: 8538BG-31LF
• Description: Clock Drivers & Distribution
• Manufacturer: IDT

Specifications of 8538BG-31LF

• Product Category: Clock Drivers & Distribution
• Rohs: yes
• Part # Aliases: ICS8538BG-31LF

Table 1. Pin Descriptions
NOTE: Pullup and Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Table 2. Pin Characteristics
IDT™ / ICS™ LVPECL FANOUT BUFFER
Symbol
C
R
R
ICS8538-31
LOW SKEW, 1-TO-8, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V LVPECL FANOUT BUFFER
IN
PULLUP
PULLDOWN
4, 12, 25
7, 17, 22
Number
10, 11
13, 14
15, 16
18, 19
20, 21
23, 24
5, 6
8, 9
26,
27
28
1
2
3
Parameter
Input Capacitance
Input Pullup Resistor
Input Pulldown Resistor
XTAL_OUT
CLK_SEL
CLK_EN
XTAL_IN
nQ7, Q7
nQ6, Q6
nQ5, Q5
nQ4, Q4
nQ3, Q3
nQ2, Q2
nQ1, Q1
nQ0, Q0
Name
V
CLK
V
V
CCO
CC
EE
Output
Output
Output
Output
Output
Output
Output
Output
Power
Power
Power
Input
Input
Input
Input
Type
Pulldown Single-ended clock input. LVCMOS/LVTTL interface levels.
Pulldown
Pullup
Test Conditions
Description
Negative supply pins.
Differential output pair. LVPECL interface levels.
Output supply pins.
Differential output pair. LVPECL interface levels.
Differential output pair. LVPECL interface levels.
Differential output pair. LVPECL interface levels.
Differential output pair. LVPECL interface levels.
Differential output pair. LVPECL interface levels.
Differential output pair. LVPECL interface levels.
Positive supply pin.
Differential output pair. LVPECL interface levels.
Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT is the output.
2
Minimum
ICS8538BG-31 REV. B FEBRUARY 5, 2008
Typical
51
51
4
Maximum
Units
k
k
pF
Ω
Ω