DATASHEET
PLL CLOCK MULTIPLIER WITH SS
Description
The IDT5V80024 is the most cost effective way to generate
a high-quality, high-frequency clock output. The device also
features a 27MHz output, making it ideal for systems to
replace a high frequency oscillator along with a 1.8V
27MHz crystal.
Using Phase-Locked Loop (PLL) techniques, the device
employs IDT’s propietary MEMs oscillator technology to
produce common output frequencies for consumer,
computing, and embedded applications that require spread
spectrum to reduce system EMI.
IDT5V80024
Features
•
Packaged in a small form factor 16-pin QFN
•
Eliminates the need for an external crystal or input clock
•
•
•
•
•
•
•
•
source
Max. +50ppm error on CLK and 27MHz output
Typical ±75 ps short term cycle-cycle jitter
Down spread spectrum capability to reduce EMI
Output voltage of 3.3 V
Operating voltage of 1.8V
Supports industrial temperature range
Supports output frequency on CLK up to 130MHz
Advanced, low-power CMOS process
Block Diagram
VDD
VDDO
S1:S0
PLL Clock
Synthesis
with Spread
Spectrum
MEMs
Oscillator
SS CLK
27MHz
GND
IDT®
PLL CLOCK MULTIPLIER WITH SS
1
IDT5V80024
REV D 022312
IDT5V80024
PLL CLOCK MULTIPLIER WITH SS
CLOCK MULTIPLIER
Pin Assignment
CAP-IN
GND
VDD
VDD
SS CLK Output Frequency/Part Number Table
Frequency
27 MHz
50 MHz
66.6666 MHz
122.8 MHz
Orderable Part Number
5V80024-027NLGI
5V80024-050NLGI
5V80024-666NLGI
5V80024-122NLGI
VDD
S1
S0
OE
1
13
VDD
27M
GND
Note: Contact IDT for any other frequencies.
5
9
SS CLK
16-pin QFN
Spread Spectrum Selection Table
S1 S0
0
0
1
1
0
1
0
1
Spread Amount
No spread
-0.5%
-1.0%
-1.5%
VDDO
GND
VDD
VDD
Direction
—
Down
Down
Down
*
Default setting is S1:S0 =00
IDT®
PLL CLOCK MULTIPLIER WITH SS
2
IDT5V80024
REV D 022312
IDT5V80024
PLL CLOCK MULTIPLIER WITH SS
CLOCK MULTIPLIER
Pin Descriptions
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin
Name
VDD
S1
S0
OE
VDDO
VDD
VDD
GND
SS CLK
GND
27M
GND
VDD
CAP-IN
GND
VDD
Pin
Type
Power
Input
Input
Input
Power
Power
Power
Output
Output
Power
–
Power
Connect to +1.8V.
Pin Description
Input select pin for spread spectrum selection. See table above. Internal
pull-down resistor.
Input select pin for spread spectrum selection. See table above. Internal
pull-down resistor.
Output enable for SS CLK and 27M outputs.
Connect to +3.3V.
Connect to +1.8V.
Connect to +1.8V.
Single-ended clock output with spread spectrum.
27MHz reference output at 1.8V.
Connect to +1.8V.
This pin should be connected to GND (pin 15) through a 10µF capacitor
Connect to +1.8V.
Ground Connect this pin to ground.
Ground Connect this pin to ground.
Ground Connect this pin to ground.
Ground Connect this pin to ground.
IDT®
PLL CLOCK MULTIPLIER WITH SS
3
IDT5V80024
REV D 022312
IDT5V80024
PLL CLOCK MULTIPLIER WITH SS
CLOCK MULTIPLIER
External Components
Decoupling Capacitor
As with any high-performance mixed-signal IC, the
IDT5V80024 must be isolated from system power supply
noise to perform optimally.
A decoupling capacitor of 0.01µF must be connected
between VDD and GND. It must be connected close to the
IDT5V80024 to minimize lead inductance. No external
power supply filtering is required for the IDT5V80024.
Series Termination Resistor
A 33Ω terminating resistor can be used next to the CLK pin
and 27M pin. The total on-chip capacitance is approximately
12 pF.
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the IDT5V80024. 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.
Item
Supply Voltage, VDD
All Inputs and Outputs
Ambient Operating Temperature (industrial temperature)
Storage Temperature
Soldering Temperature
5V
Rating
-0.5 V to VDD+0.5 V
-40 to +85° C
-65 to +150° C
260° C
Recommended Operation Conditions
Parameter
Ambient Operating Temperature (commercial)
Ambient Operating Temperature (industrial)
Power Supply Voltage (measured in respect to GND)
Power Supply Voltage (VDDO)
Min.
0
-40
+1.71
+3.135
Typ.
–
–
+1.8
+3.3
Max.
+70
+85
+1.89
+3.465
Units
°
C
°
C
V
V
IDT®
PLL CLOCK MULTIPLIER WITH SS
4
IDT5V80024
REV D 022312
IDT5V80024
PLL CLOCK MULTIPLIER WITH SS
CLOCK MULTIPLIER
DC Electrical Characteristics
VDD=1.8 V ±5%
,
VDDO = 3.3 V
,
Ambient temperature -40 to +85° C, unless stated otherwise
Parameter
Operating Voltage
Output Voltage
Input High Voltage
Input Low Voltage
Output High Voltage*
Output Low Voltage*
Output High Voltage*
Output Low Voltage*
IDD Operating Supply Current
Input Capacitance
*Note: Guaranteed by design.
Symbol
VDD
VDDO
V
IH
V
IL
V
OH
V
OL
V
OH
V
OL
CLK
Conditions
Min.
1.71
3.135
0.65
Typ.
1.8
3.3
Max.
1.89
3.465
0.35VDD
Units
V
V
V
V
V
V
V
V
mA
pF
I
OH
= -2 mA, 27M
I
OL
= 2 mA, 27M
I
OH
= -2 mA, CLK
I
OL
= 2 mA, CLK
No load
VDD-0.45
0.45
VDD-0.45
0.4
15
4
22
AC Electrical Characteristics–CLK
VDD=1.8 V ±5%, VDDO = 3.3 V,
Ambient Temperature -40 to +85° C, unless stated otherwise
Parameter
Output Frequency
Frequency Synthesis Error
Output Clock Rise Time
Output Clock Fall Time
Output Clock Duty Cycle
Short Term Cycle-to-Cycle Jitter
Long Term Jitter
Aging
Power-up Time
Spread Spectrum Modulation Frequency
Note: Measured with a 7pF load.
Symbol
F
OUT
Conditions
Min.
-50
Typ.
Max.
50
Units
MHz
ppm
ns
ns
See Page 2
80% to 20%
20% to 80%
VDD/2
CLK output
CLK output
First year
t
OR
t
OF
t
OD
t
ja
1
1
45
50
75
TBD
10
32
55
100
TBD
5
45
%
ps
ps
ppm
ms
kHz
IDT®
PLL CLOCK MULTIPLIER WITH SS
5
IDT5V80024
REV D 022312
Talking
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