PI6C48535-11LEX Pericom Semiconductor, PI6C48535-11LEX Datasheet - Page 2

• Manufacturer Part Number: PI6C48535-11LEX
• Description: Clock Buffer 2.5V 1:16 LVPECL Fanout Buffer
• Manufacturer: Pericom Semiconductor
• Type: Clock Driverr

Specifications of PI6C48535-11LEX

• Number Of Clock Inputs: 2
• Mode Of Operation: Single-Ended
• Output Frequency: 500MHz
• Output Logic Level: LVPECL
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Package Type: TSSOP
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Signal Type: LVCMOS/LVTTL
• Mounting: Surface Mount
• Pin Count: 20
• Lead Free Status / RoHS Status: Compliant

Pin Description
Notes:
1.
Pin Characteristics
Control Input Function Table
Notes:
1.
V
CLK_EN
CLK_SEL
CLK
Xtal1,
Xtal2
NC
V
Q
Q
Q
Q
EE
CC
3
2
1
0
R_pulldown
CLK_EN
,
, nQ2
,
,
I = Input, O = Output, P = Power supply connection, I_PD = Input with pull down, I_PU = Input with pull up
Name
After CLK_EN switches, the clock outputs are disabled or enabled following a rising and falling input clock edge as show below.
R_pullup
n
n
n
Symbol
Q
Q
Q
C
1
0
0
1
1
08-0257
3
0
IN
10, 13,
5, 8, 9
11, 12
14, 15
16, 17
19, 20
Pin #
6, 7
18
1
2
3
4
Input Pulldown Resistance
CLK_SEL
Input Pullup Resistance
Input Capacitance
0
1
0
1
Parameter
I_PU
I_PD
I_PD
Inputs
Type
O
O
O
O
P
P
Connect to Negative power supply
Synchronizing clock enable. When high, clock outputs follow clock input. When low, Q
outputs are forced low,
pull up.
Clock select input. When high, selects Xtal (Xtal1, Xtal2) inputs. When low, selects CLK
input. LVCMOS/LVTTL level with 50KΩ pull down.
LVCMOS / LVTTL clock input
Crystal input and output
No internal connection.
Connect to 3.3V
Differential output pair, LVPECL interface level.
Differential output pair, LVPECL interface level.
Differential output pair, LVPECL interface level.
Differential output pair, LVPECL interface level.
Selected Source
Xtal1, Xtal2
Xtal1, Xtal2
CLK
CLK
Conditions
n
Q
2
x
outputs are forced high. LVCMOS/LVTTL level with 50KΩ
Crystal/LVCMOS to LVPECL Fanout Buffer
Diasbled: Low
Disabled: Low
Description
Min.
Enabled
Enabled
Q
0
:Q
3
Typ.
Outputs
50
50
3.3V Low Skew 1-to-4
Diasbled: High
Disabled: High
Max.
4
n
Enabled
Enabled
Q
PI6C48535-11
0
PS9738A
:
n
Q
3
Units
KΩ
KΩ
pF
10/13/08
x