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.