MK2304S-2ILF

DATASHEET
ZERO DELAY, LOW SKEW BUFFER MK2304-2
IDT™
ZERO DELAY, LOW SKEW BUFFER 1
MK2304-2 REV G 051310
Description
The MK2304-2 is a low jitter, low skew, high performance
Phase Lock Loop (PLL) based zero delay buffer for high
speed applications. Based on IDT’s proprietary low jitter
PLL techniques, the device provides four low skew outputs
at speeds up to 133 MHz at 3.3 V. The MK2304-2 includes
a bank of two outputs running at 1/2X. In the zero delay
mode, the rising edge of the input clock is aligned with the
rising edges of all 4 outputs. Compared to competitive
CMOS devices, the MK2304-2 has the lowest jitter.
The MK2304-2 PLL enters a power-down state when there
are no rising edges on the REF input. In this mode, all
outputs are tri-stated and the PLL is turned off, resulting in
leass than 25 µA of current draw.
IDT manufactures the largest variety of clock generators
and buffers and is the largest clock supplier in the world.
Features
Packaged in 8 pin SOIC
Zero input-output delay
Two 1X outputs plus two 1/2X outputs
Output to output skew is less than 200 ps
Output clocks up from 10 MHz to 133 MHz at 3.3 V
Ability to generate 2X the input
Full CMOS outputs with 8 mA output drive capability at
TTL levels at 3.3 V
Spread Smart
TM
technology works with spread spectrum
clock generators
Advanced, low power, sub micron CMOS process
Operating voltage of 3.3 V
Available in industial temperature operation
Pb (lead) free package
Low Standby Current
Block Diagram
CLKA2
CLKB1
CLKB2
CLKA1
PLL
FBIN
CLKIN
/2
VDD
1
GND
1
BANK
A
BANK
B
MK2304-2
ZERO DELAY, LOW SKEW BUFFER ZDB
IDT™
ZERO DELAY, LOW SKEW BUFFER 2
MK2304-2 REV G 051310
Pin Assignment Feedback Configuration Table
Pin Descriptions
External Components
The Mk2304-2 requires a minimum number of external components for proper operation. Decoupling capacitors of
0.1µF should be connected between VDD and GND, as close to the part as possible. A 33 series terminating
resistor should be used on each clock output to reduce reflections.
REF
CLKA1
CLKA2
VDD
GND
CLKB2
CLKB1
FBK1
2
3
4
8
7
6
5
8 Pin (150 mil) SOIC
Feedback From CLKA1:A2 CLKB1:B2
Bank A CLKIN CLKIN/2
Bank B 2XCLKIN CLKIN
Pin
Number
Pin
Name
Pin
Type
Pin Description
1 REF Input Clock input. Connect to input clock source, 5 V tolerant input.
2 CLKA1 Output Clock A1 output.
3 CLKA2 Output Clock A2 output.
4 GND Power Connect to ground.
5 CLKB1 Output Clock B1 output.
6 CLKB1 Output Clock B2 output.
7 VDD Power 3.3V Power Supply.
8 FBK Input PLL feedback input
MK2304-2
ZERO DELAY, LOW SKEW BUFFER ZDB
IDT™
ZERO DELAY, LOW SKEW BUFFER 3
MK2304-2 REV G 051310
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the MK2304-2. These ratings, which are
standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these
or any other conditions above those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical
parameters are guaranteed only over the recommended operating temperature range.
Recommended Operation Conditions
DC Electrical Characteristics
VDD=3.3 V ±10%, Amb temp -40° C to 85° C
Item Rating
Supply Voltage, VDD 7 V
All Inputs and Outputs, except CLKIN -0.5 V to VDD+0.5 V
CLKIN -0.5 V to +5.5 V
Ambient Operating Temperature (commercial) 0 to +70 ° C
Ambient Operating Temperature (industrial) -40 to +85 ° C
Storage Temperature -65 to +150 ° C
Junction Temperature 125 ° C
Soldering Temperature 260 ° C
Parameter Min. Typ. Max. Units
Ambient Operating Temperature (commercial) 0 +70 ° C
Ambient Operating Temperature (industrial) -40 +85 ° C
Power Supply Voltage (measured in respect to GND) +3.0 +3.6 V
Parameter Symbol Conditions Min. Typ. Max. Units
Operating Voltage VDD 3.0 3.6 V
Input High Voltage V
IH
2V
Input Low Voltage V
IL
0.8 V
Output High Voltage V
OH
I
OH
= -8 mA 2.4 V
Output Low Voltage V
OL
I
OL
= 8 mA 0.4 V
Operating Supply Current
100 MHz, CLKIN
IDD No Load 45 mA
Stand by Supply Current
0 MHz, CLKIN
IDD No Load 12 25 uA
Short Circuit Current I
OS
Each output TBD mA
Input Capacitance C
IN
FBIN 7 pF
Power-up Time 50 ms

MK2304S-2ILF

Mfr. #:
Manufacturer:
IDT
Description:
Clock Buffer ZERO DELAY, LOW SKEW BUFFER
Lifecycle:
New from this manufacturer.
Delivery:
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