IDT XO LVDS Crystal Oscillator
XLL
DATASHEET
Description
The XLL is an LVDS crystal oscillator with 0.89ps typical
phase jitter over 12kHz to 20MHz bandwidth. Available in a
wide frequency range from 0.750MHz to 1350MHz, the IDT
XLL series crystal oscillator utilizes a family of proprietary
ASICs, with a key focus on noise reduction technologies.
The 3rd order Delta Sigma Modulator reduces noise to the
levels that are comparable to traditional bulk Quartz and SAW
oscillators. With short lead-time, low cost, low noise, wide
frequency range, excellent ambient performance, the XLL is
an excellent choice over the conventional technologies. The
XLL has stabilities as tight as ±20ppm with extremely quick
delivery for both standard and custom frequencies
Features
•
Frequency range: 0.750MHz to 1350MHz
•
Output type: LVDS
•
Frequency stability: ± 20ppm, ± 25ppm, ± 50ppm, or ± 100
•
•
•
•
•
ppm
Supply voltage: 2.5V or 3.3V
Phase jitter (1.875MHz to 20MHz): 225fs typical
Phase jitter (12kHz to 20MHz): 0.89ps typical
Package options: 3.2mm x 2.5mm x 1.0mm (JX6)
5.0mm x 3.2mm x 1.2mm (JS6)
7.0mm x 5.0mm x 1.3mm (JU6)
Operating temperatures: -20°C to +70°C or -40°C to +85°C
Pin Assignment
OUT2
VDD
OUT
6
5
4
1
E/D
2
NC
3
GND
6-pin CLCC
Pin Descriptions
Pin Number
1
2
3
4
5
6
1. Pulled high internally.
Pin Name
E/D
NC
GND
OUT
OUT2
VDD
Description
Enable/Disable
1
(0=Output Disabled)
No connect
Connect to ground
Output
Complementary Output
Supply voltage
XLL JUNE 20, 2017
1
©2017 Integrated Device Technology, Inc.
XLL DATASHEET
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the XLL. 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
VDD
E/D
OUT
Storage Temperature
Theta Ja (Junction to Ambient)
-0.5 to +5.0V
-0.5V to VDD + 0.5V
-0.5V to VDD + 0.5V
-55°C to 125°C
102°C/W – Still Air
Rating
ESD Compliance
Human Body Model (HBM
Machine Model (MM)
1000V
150V
Mechanical Testing
Parameter
Mechanical Shock
Mechanical Vibration
High Temperature Burn-in
Hermetic Seal
Test Method
Drop from 75cm to hardwood surface–3 times
10–55Hz, 1.5mm amplitude, 1 minute sweep
2 hours each in 3 directions (X, Y, Z)
Under power at 125°C for 2000 hours
He pressure: 4 ±1kgf/cm
2
2 hour soak
Solder Reflow Profile
t
P
260°C
Ramp up 3°C/s Max
225°C
180°C
160°C
120 ±20 seconds
in pre-heating
area
50 ±10
seconds
above 225°C
reflow area
10 seconds Max within
5°C of 260°C peak
Ramp down not
to exceed 6°C/s
25°C
400 seconds MAX from +25°C to 260°C peak
IDT XO LVDS CRYSTAL OSCILLATOR
2
JUNE 20, 2017
XLL DATASHEET
DC Characteristics
(V
DD
= 3.3V
±5%, T
A
= - 20°C to +70°C; -40° to +85°C)
Parameter
Power Supply Current
Differential Output Voltage
Output Offset Voltage
Enable/Disable Input HIGH Voltage
(Output enabled)*
Enable/Disable Input LOW Voltage
(Output disabled)
Symbol
I
DD
V
OD
V
OS
V
IH
V
IL
Condition
Common Frequencies
Standard LVDS load
Standard LVDS load
Min
Typ
0.6
1.3
Max
100
Units
mA
V
V
V
70%V
DD
30%V
DD
V
* A pullup resistor from pin 6 (VDD) to pin 1 (E/D) enables output when pin 1 is left open.
AC Characteristics
(V
DD
= 3.3V
±5%, T
A
= - 20°C to +70°C; -40° to +85°C)
Parameter
Output Frequency Range
Frequency Stability
Aging (1
st
year)
Aging (10 years)
Output Load
Start-up Time
Output Rise Time
Output Fall Time
Output Clock Duty Cycle
Output Enable/ Disable Time
Period Jitter, RMS
Random Jitter
Deterministic Jitter
Total Jitter
Phase Jitter (12kHz – 20MHz)
Phase Noise Performance
Frequency = 156.25MHz
T
DTCY
T
OE
J
PER
R
J
D
J
T
J
JITTER
NOISE
Symbol
F
OUTR
Condition
Temperature = -20°C to +70°C
Temperature = -40°C to +85°C
Ta = 25°C
Ta = 25°C
Differential
Min
0.750
±20
±25
Typ
Max
1350
±100
±100
3
10
Units
MHz
ppm
ppm
100
10
400
400
45
55
100
Ohms
ms
ps
ps
%
ns
ps
ps
ps
ps
ps
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
T
ST
Output valid time after VDD meets
minimum specified level
20% to 80% V
PP
80% to 20% V
PP
50%V
P-P
Frequency = 156.25MHz
Frequency = 156.25MHz
Per MJSQ spec (Methodologies for
Jitter and Signal Quality specifications)
Common Frequencies
100Hz of Carrier
1kHz of Carrier
10kHz of Carrier
100kHz of Carrier
1MHz of Carrier
10MHz of Carrier
3.0
1.3
5.8
23.6
0.89
-80
-115
-118
-124
-142
-151
Output Frequency (Common)
F
OUT
100MHz, 106.25MHz, 1258MHz, 150MHz, 155.52MHz, 156.25MHz, 200MHz,
212.5MHz, 250MHz, 300MHz, 312.5MHZ, 400MHz
(Contact IDT for additional frequencies)
Note: Inclusive of initial frequency accuracy, operating temperature range, supply variation, load variation, 3 times solder reflow, shock, vibration and 1 year aging at 25°C. We do not
recommend hand soldering the devices
JUNE 20, 2017
3
IDT XO LVDS CRYSTAL OSCILLATOR
XLL DATASHEET
DC Characteristics
(V
DD
= 2.5V
±5%, T
A
= - 20°C to +70°C; -40° to +85°C)
Parameter
Power Supply Current
Differential Output Voltage
Output Offset Voltage
Enable/Disable Input HIGH Voltage
(Output enabled)*
Enable/Disable Input LOW Voltage
(Output disabled)
Symbol
I
DD
V
OD
V
OS
V
IH
V
IL
Condition
Common Frequencies
Standard LVDS load
Standard LVDS load
Min
26
Typ
0.4
1.25
Max
65
Units
mA
V
V
V
70%V
DD
30%V
DD
V
* A pullup resistor from pin 6 (VDD) to pin 1 (E/D) enables output when pin 1 is left open.
AC Characteristics
(V
DD
= 2.5
±5%, T
A
= - 20°C to +70°C; -40° to +85°C)
Parameter
Output Frequency Range
Frequency Stability
Symbol
F
OUTR
Condition
Temperature = -20°C to +70°C
Temperature = -40°C to +85°C
Min
0.750
±20
±25
Typ
Max
1000
±100
±100
Units
MHz
ppm
ppm
Ohms
Output Load
Start-up Time
Output Rise Time
Output Fall Time
Output Clock Duty Cycle
Output Enable/ Disable Time
Period Jitter, RMS
Random Jitter
Deterministic Jitter
Total Jitter
Phase Jitter (12kHz – 20MHz)
Phase Noise Performance
Frequency = 156.25MHz
T
DTCY
T
OE
J
PER
R
J
D
J
T
J
JITTER
NOISE
Differential
T
ST
Output valid time after VDD meets
minimum specified level
20% to 80% V
PP
80% to 20% V
PP
50%V
P-P
45
100
10
400
400
55
100
ms
ps
ps
%
ns
ps
ps
ps
ps
ps
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Frequency = 156.25MHz
Frequency = 156.25MHz
Per MJSQ spec (Methodologies for
Jitter and Signal Quality specifications)
Frequency = 156.25MHz
100Hz of Carrier
1kHz of Carrier
10kHz of Carrier
100kHz of Carrier
1MHz of Carrier
10MHz of Carrier
4.0
1.4
9.2
29.2
1.04
-83
-105
-113
-119
-137
-146
Output Frequency (Standards)
F
OUT
100MHz, 106.25MHz, 1258MHz, 150MHz, 155.52MHz, 156.25MHz, 200MHz,
212.5MHz, 250MHz, 300MHz, 312.5MHZ, 400MHz
(Contact IDT for additional frequencies)
Note: Inclusive of initial frequency accuracy, operating temperature range, supply variation, load variation, 3 times solder reflow, shock, vibration and 1 year aging at 25°C. We do not
recommend hand soldering the devices
IDT XO LVDS CRYSTAL OSCILLATOR
4
JUNE 20, 2017
XLL DATASHEET
Output Waveform
Output Levels/Rise Time/Fall Time Measurements
T
R
OUTPUT 2
T
F
20% to 80% V
PP
50% V
PP
V
OS
V
OD
OUTPUT 1
Oscillator Symmetry
Ideally, Symmetry should be 50/50 for ½ period –Other expressions are 45/55 or 55/45
OUTPUT 2
V
OH
50% V
PP
OUTPUT 1
½ Period
Period
V
OL
Typical Phase Noise (3.3V)
JUNE 20, 2017
5
IDT XO LVDS CRYSTAL OSCILLATOR
DSP 与 ARM 处理器
