Maxim DS4311D+ Ds4-xo series crystal oscillator Datasheet

Rev 2; 6/08
DS4-XO Series Crystal Oscillators
The DS4125, DS4150, DS4155, DS4156, DS4160,
DS4250, DS4300, DS4311, DS4312, DS4622, and
DS4776 ceramic surface-mount crystal oscillators are
part of Maxim’s DS4-XO series of crystal oscillators.
These devices offer output frequencies at 125MHz,
155.52MHz, 156.25MHz, 160MHz, 311.04MHz, 312.5MHz,
622.08MHz, and 77.76MHz. The clock oscillators are
suited for systems with tight tolerances because of the
jitter, phase noise, and stability performance. The small
package provides a format made for applications
where PCB space is critical.
These clock oscillators are crystal based and use a fundamental crystal with PLL technology to provide the
final output frequencies. Each device is offered with
LVDS or LVPECL output types. The output enable pin is
active-high logic.
These clock oscillators have very low phase jitter and
phase noise. Typical phase jitter is < 0.7psRMS from
12kHz to 20MHz. The devices are designed to operate
with a 3.3V ±5% supply voltage, and are available in a
5.0mm x 3.2mm x 1.49mm, 10-pin LCCC surface-mount
ceramic package.
Features
♦ < 0.7psRMS from 12kHz to 20MHz Jitter
♦ LVDS or LVPECL Output Types
♦ 3.3V Operating Voltage
♦ 5.0mm x 3.2mm x 1.49mm, 10-Pin LCCC Ceramic
Package
♦ -40°C to +85°C Operating Temperature Range
♦ Lead-Free/RoHS Compliant
Ordering Information
TEMP RANGE
PIN-PACKAGE
DS4125D+
-40°C to +85°C
10 LCCC
DS4125P+
-40°C to +85°C
10 LCCC
DS4150D+
-40°C to +85°C
10 LCCC
DS4150P+
-40°C to +85°C
10 LCCC
DS4155D+
-40°C to +85°C
10 LCCC
DS4155P+
-40°C to +85°C
10 LCCC
DS4156D+
-40°C to +85°C
10 LCCC
DS4156P+
-40°C to +85°C
10 LCCC
DS4160D+
-40°C to +85°C
10 LCCC
DS4160P+
-40°C to +85°C
10 LCCC
InfiniBand
DS4250D+
-40°C to +85°C
10 LCCC
BPON/GPON
DS4250P+
-40°C to +85°C
10 LCCC
Ethernet
DS4300D+
-40°C to +85°C
10 LCCC
DS4300P+
-40°C to +85°C
10 LCCC
Applications
10GbE
PART
+Denotes a lead(Pb)-free/RoHS-compliant package. The lead
finish is JESD97 category e4 (Au over Ni) and is compatible with
both lead-based and lead-free soldering processes.
SONET/SDH
Pin Configuration and Selector Guide appear at end of
data sheet.
Ordering Information continued at end of data sheet.
Typical Operating Circuits
VCC
0.1μF
OUTP
VCC
0.01μF
0.1μF
DS4125–DS4776
OE
100Ω
OUTP
0.01μF
50Ω
DS4125–DS4776
50Ω
OE
GND
OUTN
LVDS OPTION
GND
PECL_BIAS
VCC - 2.0V
OUTN
LVPECL OPTION
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
DS4125–DS4776
General Description
DS4125–DS4776
DS4-XO Series Crystal Oscillators
ABSOLUTE MAXIMUM RATINGS
Power-Supply Voltage (VCC) .......................................-0.3V, +4V
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ...............................-55°C to +85°C
Soldering Temperature Profile
(3 passes max of reflow) ......................Refer to the IPC/JEDEC
J-STD-020 Specification.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = 3.135V to 3.465V, TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
Operating Voltage Range
SYMBOL
VCC
ICC_D
Operating Current
Output Frequency
CONDITIONS
(Note 1)
MIN
TYP
MAX
UNITS
3.135
3.3
3.465
V
52
75
LVDS, output loaded or unloaded
ICC_PU
LVPECL, output unloaded
49
70
ICC_PI
LVPECL, output load 50 at VCC - 2.0V
74
100
f OUT
fNOM
Oscillator Startup Time
t STARTUP
(Note 2)
Frequency Stability
fTOTAL
Over temperature range, aging, load,
supply, and initial tolerance (Note 3)
-50
Frequency Stability Over
Temperature with Initial Tolerance
fTEMP
VCC = 3.3V
-35
Initial Tolerance
f INITIAL
VCC = 3.3V, TA = +25°C
Frequency Change Due to VCC
f VCC
VCC = 3.3V ±5%
Frequency Change Due to Load
Variation
fLOAD
±10% variation in termination
resistance
Aging (15 Years)
fAGING
Jitter
JRMS
fNOM
MHz
50
ms
+50
ppm
+35
ppm
+3
ppm/V
±20
-3
ppm
±1
-7
ppm
+7
Integrated phase RMS; 12kHz to 5MHz,
VCC = 3.3V, TA = +25°C
0.7
Integrated phase RMS; 12kHz to 20MHz,
VCC = 3.3V, TA = +25°C
0.7
Integrated phase RMS; 12kHz to 80MHz,
VCC = 3.3V, TA = +25°C
1.0
mA
ppm
ps
Input-Voltage High (OE)
VIH
(Note 1)
0.7 x
VCC
VCC
V
Input-Voltage Low (OE)
VIL
(Note 1)
0
0.3 x
VCC
V
-50
+5.0
μA
Input Leakage (OE)
2
ILEAK
GND OE VCC
_______________________________________________________________________________________
DS4-XO Series Crystal Oscillators
(VCC = 3.135V to 3.465V, TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LVDS
Output High Voltage
VOHLVDSO
100 differential load (Note 1)
Output Low Voltage
VOLLVDSO
100 differential load (Note 1)
Differential Output Voltage
|VODLVDSO|
100 differential load
Output Common-Mode Voltage
Variation
VLVDSOCOM
Change in Differential Magnitude
or Complementary Inputs
|VODLVDSO|
Offset Output Voltage
Differential Output Impedance
VOFFLVDSO
V
V
425
mV
100 differential load
150
mV
100 differential load
25
mV
1.125
1.275
V
80
140
100 differential load (Note 1)
R OLVDSO
L VSSLVDSO
Output Current
1.475
0.925
250
OUTN or OUTP shorted to ground and
measure the current in the shorting path
40
mA
LLVDSO
OUTN or OUTP shorted together
6.5
Output Rise Time (Differential)
tRLVDSO
20% to 80%
175
ps
Output Fall Time (Differential)
tFLVDSO
80% to 20%
175
ps
Duty Cycle
DCYCLE_LVDS
45
55
%
Propagation Delay from OE Going
LOW to Logical 1 at OUTP
t PA1
200
ns
Propagation Delay from OE Going
HIGH to Output Active
t P1A
200
ns
LVPECL
Output High Voltage
VOH
Output connected to 50 at PECL_BIAS
at VCC - 2.0V
VCC 1.085
VCC 0.88
V
Output Low Voltage
VOL
Output connected to 50 at PECL_BIAS
at VCC - 2.0V
VCC 1.825
VCC 1.62
V
Differential Voltage
VDIFF_PECL
Output connected to 50 at PECL_BIAS
at VCC - 2.0V
0.595
0.710
V
Rise Time
tR-PECL
200
ps
Fall Time
tF-PECL
200
ps
Duty Cycle
DCYCLE_PECL
Propagation Delay from OE Going
LOW to Output High Impedance
Propagation Delay from OE Going
HIGH to Output Active
45
55
%
t PAZ
200
ns
t PZA
200
ns
Note 1: All voltages referenced to ground.
Note 2: AC parameters are guaranteed by design and not production tested.
Note 3: Frequency stability is calculated as: ΔfTOTAL = ΔfTEMP + ΔfVCC x (3.3 x 5%) + ΔfLOAD + ΔfAGING.
_______________________________________________________________________________________
3
DS4125–DS4776
ELECTRICAL CHARACTERISTICS (continued)
SINGLE-SIDEBAND PHASE NOISE AT fO = fNOM
fM =
SINGLE-SIDEBAND PHASE NOISE AT fO = fNOM (dBc/Hz)
77.76MHz
125.00MHz
155.52MHz
156.25MHz
160.00MHz
311.04MHz
312.5MHz
622.08MHz
10Hz
-60
-70
-70
-70
-70
-65
-65
-60
100Hz
-95
-100
-100
-100
-100
-95
-95
-90
1kHz
-122
-120
-120
-120
-120
-113
-113
-107
10kHz
-126
-120
-120
-120
-120
-113
-113
-107
100kHz
-131
-125
-125
-125
-125
-118
-118
-113
1MHz
-143
-142
-142
-142
-142
-137
-137
-131
10MHz
-149
-149
-149
-149
-149
-149
-149
-147
20MHz
-153
-153
-153
-153
-153
-153
-153
-150
Typical Operating Characteristics
(VCC = +3.3V, TA = +25°C, unless otherwise noted.)
55
DS4125/776 toc01
15
13
10
8
5
3
0
-3
-5
-8
-10
-13
-15
-18
-20
+85°C
+40°C
+70°C
+25°C
ICC (mA)
53
DS4125/776 toc02
OPERATING CURRENT (DS4155)
vs. OPERATING VOLTAGE
FREQUENCY vs. TEMPERATURE
fOUT DEVIATION (ppm)
DS4125–DS4776
DS4-XO Series Crystal Oscillators
50
0°C
48
-40°C
-40
-20
0
20
40
60
80
45
3.135 3.185 3.235 3.285 3.335 3.385 3.435
TEMPERATURE (°C)
VCC (V)
Pin Description
4
PIN
NAME
1
OE
FUNCTION
2, 7–10
N.C.
No Connection. Must be floated.
3
GND
Ground
4
OUTP
Positive Output for LVPECL or LVDS
5
OUTN
Negative Output for LVPECL or LVDS
6
VCC
—
EP
Active-High Output Enable. Has an internal pullup 100k resistor.
Supply Voltage
Exposed Paddle. Do not connect this pad or place exposed metal under the pad.
_______________________________________________________________________________________
DS4-XO Series Crystal Oscillators
DS4125–DS4776
VCC
OE
X1
TRISTATE
PHASE
DET
X2
LC-VCO
FILTER
OUTP
/n
OUTSELN
OUTDRV
OUTN
/m
DS4125–DS4776
GND
Figure 1. Functional Diagram
Detailed Description
The devices consist of a fundamental-mode, AT-cut
crystal and a synthesizer IC that can synthesize any
one of these frequencies: 77.76MHz, 125MHz,
150MHz, 155.52MHz, 156.25MHz, 160MHz, 250MHz,
300MHz, 311.04MHz, 312.5MHz, and 622.08MHz.
All devices support two types of differential output drivers: LVDS and LVPECL. When the OE signal is low,
LVPECL outputs go to the PECL_BIAS level of
VCC - 2.0V, while the LVDS outputs are a logical one.
See Figures 2 and 3 for an LVDS and LVPECL output
timing diagram.
Additional Information
For more available frequencies, refer to the DS4106
data sheet at www.maxim-ic.com/DS4106.
0.7 x VCC
OE
0.7 x VCC
0.3 x VCC
tP1A
tPA1
OE
0.3 x VCC
tPZA
tPAZ
OUTP
OUTP
OUTN
OUTN
Figure 2. LVDS Output Timing Diagram When OE Is Enabled
and Disabled
PECL_BIAS
PECL_BIAS
PECL_BIAS
PECL_BIAS
Figure 3. LVPECL Output Timing Diagram When OE Is Enabled
and Disabled
_______________________________________________________________________________________
5
DS4125–DS4776
DS4-XO Series Crystal Oscillators
Ordering Information (continued)
PART
Chip Information
SUBSTRATE CONNECTED TO GROUND
PROCESS: BiPOLAR SiGe
TEMP RANGE
PIN-PACKAGE
DS4311D+
-40°C to +85°C
10 LCCC
DS4311P+
-40°C to +85°C
10 LCCC
DS4312D+
-40°C to +85°C
10 LCCC
DS4312P+
-40°C to +85°C
10 LCCC
DS4622D+
-40°C to +85°C
10 LCCC
THETA-JA (°C/W)
DS4622P+
-40°C to +85°C
10 LCCC
90
DS4776D+
-40°C to +85°C
10 LCCC
DS4776P+
-40°C to +85°C
10 LCCC
Thermal Information
+Denotes a lead(Pb)-free/RoHS-compliant package. The lead
finish is JESD97 category e4 (Au over Ni) and is compatible with
both lead-based and lead-free soldering processes.
Selector Guide
FREQUENCY (NOM)
(MHz)
FREQUENCY
STABILITY (ppm)
DS4125D+
125.00
DS4125P+
125.00
DS4150D+
OUTPUT TYPE
TOP MARK
±50
LVDS
25D
±50
LVPECL
25P
150.00
±50
LVDS
50D
DS4150P+
150.00
±50
LVPECL
50P
DS4155D+
155.52
±50
LVDS
55D
DS4155P+
155.52
±50
LVPECL
55P
DS4156D+
156.25
±50
LVDS
56D
DS4156P+
156.25
±50
LVPECL
56P
DS4160D+
160.00
±50
LVDS
60D
DS4160P+
160.00
±50
LVPECL
60P
DS4250D+
250.00
±50
LVDS
T5D
DS4250P+
250.00
±50
LVPECL
T5P
DS4300D+
300.00
±50
LVDS
30D
DS4300P+
300.00
±50
LVPECL
30P
DS4311D+
311.04
±50
LVDS
31D
DS4311P+
311.04
±50
LVPECL
31P
DS4312D+
312.50
±50
LVDS
32D
DS4312P+
312.50
±50
LVPECL
32P
DS4622D+
622.08
±50
LVDS
62D
DS4622P+
622.08
±50
LVPECL
62P
DS4776D+
77.76
±50
LVDS
76D
DS4776P+
77.76
±50
LVPECL
76P
PART
+Denotes a lead(Pb)-free/RoHS-compliant package. The lead finish is JESD97 category e4 (Au over Ni) and is compatible with both
lead-based and lead-free soldering processes.
6
_______________________________________________________________________________________
DS4-XO Series Crystal Oscillators
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages.
TOP VIEW
N.C.
N.C.
+
OE
1
N.C.
2
GND
3
DS4125
*EP
N.C.
6
VCC
5
OUTN
4
OUTP
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
10 LCCC
L1053+H2
21-0389
N.C.
(5.00mm × 3.20mm × 1.49mm)
*EXPOSED PAD
_______________________________________________________________________________________
7
DS4125–DS4776
Pin Configuration
DS4125–DS4776
DS4-XO Series Crystal Oscillators
Revision History
REVISION
NUMBER
REVISION
DATE
0
7/07
1
2
3/08
6/08
DESCRIPTION
PAGES
CHANGED
Initial release.
—
Added DS4150, DS4250, DS4300.
All
Removed f INITIAL from the frequency stability calculation in Note 3.
3
In the Pin Description, changed the EP description to indicate that it should not
be connected and to avoid placing exposed metal under the pad location.
4
Removed future status from the DS4150, DS4250, and DS4300.
1, 6
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2008 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
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