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ZL40225LDF1

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P25
ZL40225 Data Sheet
15
Microsemi Corporation
3.5 Power Supply
This device operates with either a 2.5V supply or 3.3V supply.
3.5.1 Sensitivity to power supply noise
Power supply noise from sources such as switching power supplies and high-power digital components such as
FPGAs can induce additive jitter on clock buffer outputs. The ZL40225 is equipped with a low drop out (LDO) power
regulator and on-chip bulk capacitors to minimize additive jitter due to power supply noise. The on-chip regulation,
recommended power supply filtering, and good PCB layout all work together to minimize the additive jitter from
power supply noise.
3.5.2 Power supply filtering
For optimal jitter performance, the ZL40225 should be isolated from the power planes connected to its power
supply pins as shown in Figure 19.
• 10 µF capacitors should be size 0603 or size 080
5 X5R or X7R ceramic, 6.3 V minimum rating
• 0.1 µF capacitors should be
size 0402 X5R ceramic, 6.3 V minimum rating
• Capacitors should be placed next to the
connected device power pins
Figure 19 - Decoupling Connections for Power Pins
VDD
0.15 Ohms
10 µF
0.1 µF
0.1 µF
10 µF
ZL40225
9
19
22
32
3.5.3 PCB layout considerations
The power supply filtering shown in Figure 19 can be implemented either as a plane island, or as a routed power
topology with equal results.
Absolute Maximum Ratings*
Parameter Sym. Min. Max. Units
1 Supply voltage V
DD_R
-0.5 4.6 V
2 Voltage on any digital pin V
PIN
-0.5 V
DD
V
4 LVPECL output current I
out
30 mA
5 Soldering temperature T 260 °C
6 Storage temperature T
ST
-55 125 °C
7 Junction temperature T
j
125 °C
8 Voltage on input pin V
input
V
DD
V
9 Input capacitance each pin C
p
500 fF
ZL40225 Data Sheet
16
Microsemi Corporation
4.0 Electrical Characteristics
* Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.
* Voltages are with respect to ground (GND) unless otherwise stated
Recommended Operating Conditions*
Characteristics Sym. Min. Typ. Max. Units
1 Supply voltage 2.5 V mode V
DD25
2.375 2.5 2.625 V
2 Supply voltage 3.3 V mode V
DD33
3.135 3.3 3.465 V
3 Operating temperature T
A
-40 25 85 °C
* Voltages are with respect to ground (GND) unless otherwise stated
DC Electrical Characteristics - Current Consumption
Characteristics Sym. Min. Typ. Max. Units Notes
1 Supply current LVPECL drivers -
un
loaded
I
dd_unload
122 mA
2
Supply current LVPECL drivers -
loa
ded (all outputs are active)
I
dd_load
257 mA Including power
to R
L
= 50Ω
DC Electrical Characteristics - Inputs and Outputs - for 3.3 V Supply
Characteristics Sym. Min. Typ. Max. Units Notes
1 CMOS control logic high-level
input
voltage
V
CIH
0.7*V
DD
V
2 CMOS control logic low
-level input
voltage
V
CIL
0.3*V
DD
V
3 CMOS control logic Input leakage
current
I
IL
1 µA V
I
= V
DD
or 0 V
4 Differential input common mode
volt
age
V
CM
1.1 2.0 V
ZL40225 Data Sheet
17
Microsemi Corporation
* This parameter is measured from 125 MHz to 750 MHz
* This parameter is measured from 125 MHz to 750 MHz
Figure 20 - Differential Voltage Parameter
5 Differential input voltage difference V
ID
0.25 1 V
6 Differential input resistance V
IR
80 100 120 ohm
7 LVPECL output high voltage V
OH
V
DD
-
1.40
V
8 LVPECL output low voltage V
OL
V
DD
-
1.62
V
9 LVPECL output differential voltage* V
OD
0.5 0.9 V
DC Electrical Characteristics - Inputs and Outputs - for 2.5 V Supply
Characteristics Sym. Min. Typ. Max. Units Notes
1 CMOS control logic high-level
input
voltage
V
CIH
0.7*V
DD
V
2 CMOS control logic low
-level input
voltage
V
CIL
0.3*V
DD
V
3 CMOS control logic Input leakage
current
I
IL
1 µA V
I
= V
DD
or 0 V
4 Differential input common mode
volt
age
V
CM
1.1 1.6 V
5 Differential input voltage difference V
ID
0.25 1 V
6 Differential input resistance V
IR
80 100 120 ohm
7 LVPECL output high voltage V
OH
V
DD
-
1.40
V
8 LVPECL output low voltage V
OL
V
DD
-
1.62
V
9 LVPECL output differential voltage* V
OD
0.4 0.9 V
2*V
OD
V
OD
DC Electrical Characteristics - Inputs and Outputs - for 3.3 V Supply
Characteristics Sym. Min. Typ. Max. Units Notes
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P25

ZL40225LDF1

Mfr. #:
Buy ZL40225LDF1
Manufacturer:
Microchip / Microsemi
Description:
Clock Buffer 2:8 LVPECL Fanout Buffer w/Int. Term.
Lifecycle:
New from this manufacturer.
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