Maxim DS4160D+ Ds4-xo series crystal oscillator Datasheet

Rev 0; 7/07
DS4-XO Series Crystal Oscillators
The DS4125, DS4155, DS4156, DS4160, DS4311,
DS4312, DS4622, and DS4776 ceramic surface-mount
crystal oscillators are part of Maxim’s DS4-XO series
crystal oscillators family. 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.
Features
♦ < 0.6psRMS 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
PART
TEMP RANGE
PIN-PACKAGE
DS4125D+
-40°C to +85°C
10 LCCC
DS4125P+
-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
DS4311D+
-40°C to +85°C
10 LCCC
BPON/GPON
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
DS4622P+
-40°C to +85°C
10 LCCC
DS4776D+
-40°C to +85°C
10 LCCC
DS4776P+
-40°C to +85°C
10 LCCC
These clock oscillators have very low phase jitter and
phase noise. Typical phase jitter is < 0.6psRMS 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.
Applications
Ethernet
10GbE
SONET/SDH
Pin Configuration and Selector Guide appear at end of
data sheet.
+Denotes a lead-free package. The lead finish is JESD97
category e4 (Au over Ni) and is compatible with both lead-based
and lead-free soldering processes.
Typical Operating Circuits
VCC
0.1μF
OUTP
VCC
0.1μF
0.01μF
DS4125
50Ω
DS4125
100Ω
OE
OUTP
0.01μF
PECL_BIAS
VCC - 2.0V
50Ω
OE
GND
OUTN
LVDS OPTION
GND
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/DS4155/DS4156/DS4160/DS4311/DS4312/DS4622/DS4776
General Description
DS4125/DS4155/DS4156/DS4160/DS4311/DS4312/DS4622/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).................See 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
Operating Current
Output Frequency
SYMBOL
VCC
CONDITIONS
(Note 1)
MIN
TYP
MAX
UNITS
3.135
3.3
3.465
V
50
70
ICC_D
LVDS, output loaded or unloaded
ICC_PU
LVPECL, output unloaded
45
65
ICC_PI
LVPECL, output load 50 at VCC - 2.0V
70
95
fOUT
fNOM
Oscillator Startup Time
tSTARTUP
(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
fINITIAL
VCC = 3.3V, TA = +25°C
Frequency Change Due to VCC
fVCC
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
< 0.5
Integrated phase RMS; 12kHz to 20MHz,
VCC = 3.3V, TA = +25°C
< 0.6
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
1.475
V
425
mV
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
100 differential load
150
mV
Change in Differential Magnitude
or Complementary Inputs
|VODLVDSO|
100 differential load
25
mV
Offset Output Voltage
Differential Output Impedance
VOFFLVDSO
LVSSLVDSO
Output Current
Output Rise Time (Differential)
Output Fall Time (Differential)
Duty Cycle
100 differential load (Note 1)
ROLVDSO
0.925
V
250
1.125
1.275
V
80
140
OUTN or OUTP shorted to ground and
measure the current in the shorting path
40
LLVDSO
OUTN or OUTP shorted together
6.5
tRLVDSO
20% to 80%
175
tFLVDSO
80% to 20%
DCYCLE_LVDS
ps
175
45
mA
ps
55
%
Propagation Delay from OE Going
LOW to Logical 1 at OUTP
tPA1
200
ns
Propagation Delay from OE Going
HIGH to Output Active
tP1A
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
Rise Time
tR-PECL
Fall Time
tF-PECL
Duty Cycle
DCYCLE_PECL
0.710
V
200
ps
200
45
ps
55
%
Propagation Delay from OE Going
LOW to Output High Impedance
tPAZ
200
ns
Propagation Delay from OE Going
HIGH to Output Active
tPZA
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 + ΔfINITIAL + ΔfTEMP + (ΔfVCC x 0.165) + ΔfLOAD + ΔfAGING.
_______________________________________________________________________________________
3
DS4125/DS4155/DS4156/DS4160/DS4311/DS4312/DS4622/DS4776
ELECTRICAL CHARACTERISTICS (continued)
DS4125/DS4155/DS4156/DS4160/DS4311/DS4312/DS4622/DS4776
DS4-XO Series Crystal Oscillators
SINGLE-SIDEBAND PHASE NOISE AT f0 = fNOM
fM =
SINGLE-SIDEBAND PHASE NOISE AT f0 = 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
Pin Description
4
PIN
NAME
1
OE
FUNCTION
Active-High Output Enable. Has an internal pullup 100k resistor.
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
Supply Voltage
Exposed Paddle. The exposed pad must be used for thermal relief. This pad can be connected to
ground.
_______________________________________________________________________________________
DS4-XO Series Crystal Oscillators
OE
X1
TRISTATE
PHASE
DET
X2
LC-VCO
FILTER
OUTP
/n
OUTSELN
OUTDRV
OUTN
DS4125/DS4155/
DS4156/DS4160/
DS4311/DS4312/
DS4622/DS4776
/m
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,
155.52MHz, 156.25MHz, 160MHz, 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/DS4155/DS4156/DS4160/DS4311/DS4312/DS4622/DS4776
VCC
DS4125/DS4155/DS4156/DS4160/DS4311/DS4312/DS4622/DS4776
DS4-XO Series Crystal Oscillators
Selector Guide
FREQUENCY (NOM)
(MHz)
FREQUENCY
STABILITY (ppm)
DS4125D+
125.00
DS4125P+
125.00
DS4155D+
OUTPUT TYPE
TOP MARK
±50
LVDS
25D
±50
LVPECL
25P
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
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-free package. The lead finish is JESD97 category e4 (Au over Ni) and is compatible with both lead-based and leadfree soldering processes.
Pin Configuration
SUBSTRATE CONNECTED TO GROUND
PROCESS: Bipolar SiGe
TOP VIEW
N.C.
Chip Information
N.C.
+
OE
1
N.C.
2
GND
3
6
VCC
5
OUTN
4
OUTP
Thermal Information
THETA-JA (°C/W)
DS4125
*EP
90
Package Information
(For the latest package outline information go to
www.maxim-ic.com/DallasPackInfo.)
N.C.
N.C.
(5.00mm × 3.20mm × 1.49mm)
PACKAGE TYPE
DOCUMENT NO.
10 LCCC
56-G5032-002
*EXPOSED PAD
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.
6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2007 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
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