PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech Tel: +49/8191/305395 ∙ Fax: +49/8191/305397 [email protected] ∙ www.petermann-technik.com ULTRA-LOW POWER OSCILLATOR 32.768 kHz SERIES „ULPO-RB1“ FEATURES APPLICATIONS + + + + + + + + + + + + + + + + + + + + + + + + + Ultra-Low Power Oscillator for Low Cost Excellent long time reliability Smallest footprint 1.5 x 0.8 mm Ultra-low power: <1 µA Directly interfaces to XTAL inputs Supports coin-cell or super-cap battery backup voltages Oscillator output eliminates external load caps Internal filtering eliminates external VDD bypass cap Programmable output swing to reduce power Pb-free, RoHS and REACH compliant / MSL1@260° Smart Phones Tablets Health and Wellness Monitors Fitness Watches Sport Video Cams Wireless Keypads Ultra-Small Notebook PC Pulse-per-Second (pps) Timekeeping RTC Reference Clock Battery Management Timekeeping Wearables IoT GPS Smart Metering Home Automation GENERAL DATA PARAMETER AND CONDITIONS SYMBOL MIN. TYP. MAX. UNIT CONDITION FREQUENCY Fixed Output Frequency F_out 32.768 kHz FREQUENCY STABILITY F_tol Frequency Tolerance[1] F_stab Frequency Stability[2] ) 25°C Aging 10 PPM TA = 25°C, post reflow, Vdd: 1.5V – 3.63V. 20 PPM TA = 25°C, post reflow with board-level underfill, Vdd: 1.5V – 3.63V. 75 PPM TA = -10°C to +70°C, VDD: 1.5V – 3.63V. 100 PPM TA = -40°C to +85°C, VDD: 1.5V – 3.63V. 250 PPM TA = -10°C to +70°C, VDD: 1.2V – 1.5V. 1.0 PPM 1st Year +70 °C Commercial F_aging -1.0 Operating Temperature Range T_use -10 – -40 – +85 °C Industrial Storage Temperature Range T_stor -55 – +125 °C Storage VDD 1.2 3.63 V TA = -10°C to +70°C 1.5 3.63 V TA = -40°C to +85°C OPERATING TEMPERATURE RANGE SUPPLY VOLTAGE AND CURRENT CONSUMPTION Operating Supply Voltage Core Operating Current IDD [3] Output Stage Operating Current Power-Supply Ramp Start-up Time at Power-up [4] [3] IDD_out 0.90 0.065 t_VDD_Ramp t_start 180 µA TA = 25°C, VDD = 1.8V. No Load 1.3 µA TA = -10°C to +70°C, VDD max: =3.63V. No load 1.4 µA TA = -40°C to +85°C, VDD max:=3.63V. No load 0.125 μA/Vpp TA = -40°C to +85°C, Vdd: 1.5V – 3.63V. No load 100 ms VDD Ramp-Up 0 to 90% VDD, TA = -40°C to +85°C 300 ms TA = 25°C ±10°C, valid output 450 ms TA = -40°C to +70°C, valid output 500 ms TA = +85°C, valid output Notes: 1.No board level underfill. Measured as peak-to-peak/2. Inclusive of 3x-reflow and ±20% load variation. Tested with Agilent 53132A frequency counter. Due to the low operating frequency, the gate time must be ≥100 ms to ensure an accurate frequency measurement. 2. Initial offset is defined as the frequency deviation from the ideal 32.768 kHz at room temperature, post reflow. 3. Core operating current does not include output driver operating current or load current. To derive total operating current (no load), add core operating current + output driver operating current, which is a function of the output voltage swing. See the description titled, Calculating Load Current. 4. Measured from the time VDD reaches 1.5V. CRYSTALS ∙ OSCILLATORS ∙ CERAMIC RESONATORS ∙ CERAMIC FILTERS ∙ SAW COMPONENTS PAGE 1 OF 10 I SPEC 01 I REV.00 I NOVEMBER 2014 PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech Tel: +49/8191/305395 ∙ Fax: +49/8191/305397 [email protected] ∙ www.petermann-technik.com GENERAL DATA (continued) PARAMETER AND CONDITIONS SYMBOL MIN. TYP. MAX. UNIT CONDITION nsRMS Cycles = 10,000, TA = 25°C, VDD = 1.5V – 3.63V 200 ns 10-90% (VDD), 15 pF Load VDD= 1.5V to 3.63V 52 % JITTER PERFORMANCE (TA = OVER TEMP) Period Jitter T_jitt 35 LVCMOS OUTPUT (STANDARD VERSION TA = –40/+85°C, TYPICAL VALUES ARE AT TA = 25°C) Output Rise/Fall Time tf, tf 100 Output Clock Duty Cycle DC 48 Output Voltage High VOH 90% Output Voltage Low VOL 10% V VDD: 1.5V – 3.63V. IOH = -10μA, 15 pF Load V VDD: 1.5V – 3.63V. IOL = 10μA, 15 pF Load PROGRAMMABLE, REDUCED SWING OUTPUT (ADAPTABLE ACCORDING TO CUSTOMERS REQUIREMENT) Output Rise/Fall Time tf, tf Output Clock Duty Cycle DC 48 200 ns 52 % 30-70% (VOL/VOH), 10 pF Load AC-coupled Programmable Output Swing V_sw 0.20 to 0.80 V ULPO-RB1 does not internally AC-couple. This output description is intended for a receiver that is AC-coupled. VDD: 1.5V – 3.63V, 10 pF Load, IOH / IOL = ±0.2 μA. DC-Biased Programmable Output Voltage High Range VOH 0.6 to 1.225 V VDD: 1.5V – 3.63V. IOH = -0.2 μA, 10 pF Load. DC-Biased Programmable Output Voltage Low Range VOL 0.35 to 0.80 V VDD: 1.5V – 3.63V. IOL = 0.2 μA, 10 pF Load. V TA = -40°C to +85°C, VDD = 1.5V to 3.63V. Programmable Output Voltage Swing Tolerance -0.055 0.055 EXCELLENT RELIABILITY DATA MTBF 500 million hours Shock Resistance 10.000 g Vibration Resistance 70 g PIN DESCRIPTION Pin Symbol 1,4 GND I/O Functionality Power Supply Connect to ground. Acceptable to connect pin 1 and 4 together. Both pins must be connected to GND. Ground 2 CLK Out OUT 3 VDD Power Supply Oscillator clock output. The CLK can drive into a Ref CLK input or into an ASIC or chip-set’s 32kHz XTAL input. When driving into an ASIC or chip-set oscillator input (X IN and X Out), the CLK Out is typically connected directly to the XTAL IN pin. No need for load capacitors. The output driver is intended to be insensitive to capacitive loading. Connect to power supply 1.5V ≤ Vdd ≤ 3.63V. Under normal operating conditions, V DD does not require external bypass/ decoupling capacitor(s). For more information about the internal power-supply filtering, see Power-Supply Noise Immunity section in the detailed description. Contact factory for applications that require a wider operating supply voltage range. FIGURE 1. 1.5X0.8 MM PACKAGE (TOP VIEW) GND 1 4 GND CLK OUT 2 3 VDD CRYSTALS ∙ OSCILLATORS ∙ CERAMIC RESONATORS ∙ CERAMIC FILTERS ∙ SAW COMPONENTS PAGE 2 OF 10 I SPEC 01 I REV.00 I NOVEMBER 2014 PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech Tel: +49/8191/305395 ∙ Fax: +49/8191/305397 [email protected] ∙ www.petermann-technik.com DESCRIPTION The ULPO-RB1 is the smallest, lowest power 32.768 kHz oscillator optimized for mobile and other battery powered applications. The silicon oscillator technology enables the smallest footprint w i t h 1 . 5x 0 .8 mm packaging. This device reduces the 32.768 kHz footprint by as much as 85% compared to existing 2.0 x 1.2 mm SMD XTAL package. Unlike XTALs, the ULPO-RB1 oscillator output enables greater component placement flexibility and eliminates external load capacitors, thus saving additional component count and board POWER SUPPLY NOISE IMMUNITY In addition to eliminating external output load capacitors common with standard XTALs, this device includes special power supply filtering and thus, eliminates the need for an external VDD bypassdecoupling capacitor to keep the footprint as small as possible. Internal power supply filtering is designed to reject more than ±150 mV noise and frequency components from low frequency to more than 10 space. And unlike standard oscillators, the ULPO-RB1 features pro- MHz. grammable output swing, a factory programmable output that reduces OUTPUT VOLTAGE the voltage swing to minimize power. The 1.2V to 3.63V operating supply voltage range makes it an ideal solution for mobile applications that incorporate a low-voltage, battery-back-up source such as a coin-cell or super-cap. The ULPO-RB1 oscillators consist of a silicon resonators and a programmable analog circuit using a key sealing process ensuring best performance and reliability. The ULPO-RB1 has two output voltage options. One option is a standard LVCMOS rail-to-rail DC-coupled output swing, which is mostly used. The second option is the programmable reduced swing output for reducing current consumption. Output swing is customer specific and factory programmed between 200 mV and 800 mV. For DCcoupled applications, output VOH and VOL are individually factory programmed to the customers’ requirement. VOH programming FREQUENCY STABILITY range is between 600 mV and 1.225V in 100 mV increments. Similarly, The ULPO-RB1 is factory calibrated to guarantee frequency stabil- ple; an IC or µP is internally 1.8V logic compatible and requires a 1.2V ity to be less than ±10 ppm at room temperature and less than ±100 ppm over the full -40°C to +85°C temperature range. Unlike quartz crystals that have a classic tuning fork parabola temperature curve with a 25°C turnover point, the ULPO-RB1 temperature coefficient is extremely flat across temperature. The device maintains less than ± 100 ppm frequency stability over the full operating temperature range of –40/+85°C when the operating voltage is between 1.5 and 3.63V as shown in Figure 2. VOL programming range is between 350 mV and 800 mV. For examVIH and a 0.6V VIL. Simply select ULPO-RB1 programmable output swing factory programming code to be “D14” and the correct output thresholds will match the downstream IC or µP input requirements. Interface logic will vary by manufacturer and we recommend that you review the input voltage requirements for the input interface. For DC -biased output configuration, the minimum VOL is limited to 350mV and the maximum allowable swing VOH - VOL) is 750mV. For example, 1.1V VOH and 400mV VOL is acceptable, but 1.2V VOH and 400 mV Functionality is guaranteed over the 1.2V - 3.63V operating supply voltage range. However, frequency stability degrades below 1.5V and steadily degrades as it approaches the 1.2V minimum supply due to the internal regulator limitations. Between 1.2V and 1.5V, the frequency stability is ± 250 ppm max. over temperature. VOL is not acceptable. When the Output is interfacing to an XTAL input that is internally ACcoupIed, the ULPO-RB1 output can be factory programmed to match the input swing requirements. For example, if a PMIC or MCU input is internally AC-coupIed and requires an 800mV swing, then simply When measuring the ULPO-RB1 output frequency with a frequency counter, it is important to make sure the counter's gate time is >100ms. The slow frequency of a 32.768 kHz clock will give false readings with faster gate times. Contact Petermann-Technik for applications that require a wider supply voltage range >3.63V or lower frequency options as low as 1Hz. choose the ULPO-RB1 programming code "AA8" in the part number. It is important to note that the ULPO-RB1 does not include internal AC-coupling capacitors. Please see the Part Number Ordering section at the end of the datasheet for more information about the part number ordering scheme. FIGURE 2. PETERMANN-TECHNIK vs. QUARTZ Frequency Stability (ppm) 150 ULPO-RB1-Industrial Temp Specification 100 50 ULPO-RB1 Measured ULPO-RB1 ±10 ppm max. @ 25°C 0 -50 Quartz XTAL -100 -150 -40 –160 to –220 ppm over temp -20 0 20 40 60 80 Temperature (C°) CRYSTALS ∙ OSCILLATORS ∙ CERAMIC RESONATORS ∙ CERAMIC FILTERS ∙ SAW COMPONENTS PAGE 3 OF 10 I SPEC 01 I REV.00 I NOVEMBER 2014 PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech Tel: +49/8191/305395 ∙ Fax: +49/8191/305397 [email protected] ∙ www.petermann-technik.com POWER-UP TABLE 2. ACCEPTABLE AC-COUPLED SWING LEVELS The ULPO-RB1 starts-up to a valid output frequency within 300 ms (150ms typ). To ensure the device starts-up within the specified limit, make sure the power-supply ramps-up in approximately 10 - 20ms (to within 90% of VDD). Start-up time is measured from the time VDD reaches 1.5V. For applications that operate between 1.2V and 1.5V, the start-up time will be longer. SWING 0.800 0.700 0.600 0.500 0.400 0.300 0.250 0.200 Output Code AA8 AA7 AA6 AA5 AA4 AA3 AA2 AA1 EXAMPLE: + ULPO-RB1 PROGRAMMABLE OUTPUT SWING Figure 4 shows a typical ULPO-RB1 output waveform (into a 10 pF Programmable output swing part number coding: AA2. Example part number: ULPO-RB1-1508-75-D-32.768KHZ-T-AA2 load) when factory programmed for a 0.70V swing and DC bias (VOH/ + VOL) for 1.8V logic: The values listed in Tables 1 and -2 are nominal values at 25°C and EXAMPLE: will exhibit a tolerance of ±55 mV across VDD and -40°C to 85°C oper- + Programmable output swing part number coding: D14. Example part number: ULPO-RB1-18-1508-75-D-32.768KHZ-T-D14 Output voltage swing: 0.250V ating temperature range. ULPO-RB1 FULL SWING LVCMOS OUTPUT The ULPO-RB1 can be factory programmed to generate full-swing + VOH = 1.1V, VOL = 0.4V (VSW = 0.70V) LVCMOS levels. Figure 4 shows the typical LVCMOS waveform (V DD = 1.8V) at room temperature into a 15 pF load. FIGURE 3. ULPO-RB1-33-1508-75-D-32.768KHZ-T-S OUTPUT WAVEFORM (10 PF LOAD) EXAMPLE: +Standard LVCMOS rail-to-rail output part number coding is always S +Example part number: ULPO-RB1-33-1508-75-D-32.768KHZ-T-S FIGURE 4. LVCMOS WAVEFORM (VDD = 1.8V) INTO 15 PF LOAD Table 1 shows the supported programmable output swing VOH, VOL factory programming options. TABLE 1. ACCEPTABLE VOH/VOL PROGRAMMABLE OUTPUT SWING LEVELS VOL/VOH 1.225 1.100 1.000 0.800 D28 D18 D08 0.900 0.800 0.700 0.600 0.700 D27 D17 D07 D97 0.525 D26 D16 D06 D96 D86 0.500 D25 D15 D05 D95 D85 D75 0.400 D14 D04 D94 D84 D74 D64 0.350 D13 D03 D93 D83 D73 D63 Table 2 shows the supported AC coupled Swing levels. The “ACcoupled” terminology refers to the programming description for applications where the downstream chipset includes an internal ACcoupling capacitor, and therefore, only the output swing is important and VOH/VOL are not relevant. For these applications, refer to Table 2 for the acceptable voltage swing options. CRYSTALS ∙ OSCILLATORS ∙ CERAMIC RESONATORS ∙ CERAMIC FILTERS ∙ SAW COMPONENTS PAGE 4 OF 10 I SPEC 01 I REV.00 I NOVEMBER 2014 PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech Tel: +49/8191/305395 ∙ Fax: +49/8191/305397 [email protected] ∙ www.petermann-technik.com CALCULATING LOAD CURRENT NO LOAD SUPPLY CURRENT TOTAL SUPPLY CURRENT WITH LOAD When calculating no-load power for the ULPO-RB1, the core and output driver components need to be added. Since the output voltage swing can be programmed for reduced swing between 250 mV and 800 mV, the output driver current is variable. Therefore, no-load operating supply current is broken into two sections; core and output driver. The equation is as follows: To calculate the total supply current, including the load, follow the equation listed below. Note the 30% reduction in power with programmable output swing. Total Supply Current (no load) = IDD Core + (65nA/V)(Voutpp) EXAMPLE 1: FULL-SWING LVCMOS EXAMPLE 1: FULL-SWING LVCMOS + VDD = 1.8V + IDD Core = 900nA (typ) + Voutpp = 1.8V Total Current = IDD Core + IDD Output Driver (65nA/V*Voutpp) + Load Current (C*V*F) + + + + + + VDD = 1.8V IDD Core = 900nA Load Capacitance = 10pF IDD Output Driver: (65nA/V)(1.8V) = 117nA Load Current: (10pF)(1.8V)(32.768kHz) = 590nA Total Current = 900nA+117nA+590nA = 1.6µA Supply Current = 900nA + (65nA/V)(1.8V) = 1017nA EXAMPLE 2: PROGRAMMED REDUCED SWING EXAMPLE 2: PROGRAMMED REDUCED SWING + + + VDD = 1.8V IDD Core = 900nA (typ) Voutpp (Programmable) = VOH – VOL = 1.1V - 0.6V = 500 mV Supply Current = 900nA + (65nA/V)(0.5V) = 932nA CRYSTALS ∙ OSCILLATORS ∙ CERAMIC RESONATORS ∙ CERAMIC FILTERS ∙ SAW COMPONENTS + + + + + + + VDD= 1.8V IDD Core = 900nA Load Capacitance = 10pF Voutpp (Programmable): VOH – VOL = 1.1V - 0.6V = 500mV Idd Output Driver: (65nA/V)(0.5V) = 33nA Load Current: (10pF)(0.5V)(32.768kHz) =164nA Total Current = 900nA + 33nA + 164nA = 1.1µA PAGE 5 OF 10 I SPEC 01 I REV.00 I NOVEMBER 2014 PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech Tel: +49/8191/305395 ∙ Fax: +49/8191/305397 [email protected] ∙ www.petermann-technik.com TYPICAL OPERATING CURVES FIGURE 6. FREQUENCY STABILITY OVER TEMPERATURE Number of Devices Frequency Stability (PPM) FIGURE 5. INITIAL TOLERANCE HISTOGRAM Temperature (°C) Initial Tolerance (ppm) TA = 25°C Post Reflow, No underfill FIGURE 8. OUTPUT STAGE CURRENT OVER TEMPERATURE Core Current (uA) Output Stage Current (nA/Vpp) FIGURE 7. CORE CURRENT OVER TEMPERATURE Temperature (°C) Temperature (°C) Voltage (V) FIGURE 9. START-UP TIME Time (sec) CRYSTALS ∙ OSCILLATORS ∙ CERAMIC RESONATORS ∙ CERAMIC FILTERS ∙ SAW COMPONENTS PAGE 6 OF 10 I SPEC 01 I REV.00 I NOVEMBER 2014 PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech Tel: +49/8191/305395 ∙ Fax: +49/8191/305397 [email protected] ∙ www.petermann-technik.com TYPICAL OPERATING CURVES Frequency Error (ppm) FIGURE 10. POWER SUPPLY NOISE REJECTION (+/-150MV NOISE) Noise Injection Frequency (Hz) FIGURE 11. PROGRAMMABLE OUTPUT SWING WAVEFORM (VOH = 1.1V, VOL = 0.4V, ULPO-RB1) CRYSTALS ∙ OSCILLATORS ∙ CERAMIC RESONATORS ∙ CERAMIC FILTERS ∙ SAW COMPONENTS FIGURE 12. LVCMOS OUTPUT WAVEFORM (VSWING = 1.8V, ULPO-RB1) PAGE 7 OF 10 I SPEC 01 I REV.00 I NOVEMBER 2014 PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech Tel: +49/8191/305395 ∙ Fax: +49/8191/305397 [email protected] ∙ www.petermann-technik.com DIMENSIONS AND PATTERNS RECOMMENDED LAND PATTERN (UNIT:MM) PACKAGE SIZE – DIMENSIONS (UNIT:MM) 1.55 X 0.85 MM Ø 0.25 (4x) NSMD pads #2 #1 Polymer coating #4 1.00 BSC #3 #3 #2 0.41 #1 0.315±0.015 #4 0.41 BSC #3 0.84±0.02 #4 0.60 max 0.04 1.54±0.02 #1 #2 1.00 0.35 (4x) Soldermask opening (soldermask openings shown with heavy dashed line) Recommended 4-mil (0.1mm) stencil thickness REFLOW SOLDER PROFILE CRYSTALS ∙ OSCILLATORS ∙ CERAMIC RESONATORS ∙ CERAMIC FILTERS ∙ SAW COMPONENTS PAGE 8 OF 10 I SPEC 01 I REV.00 I NOVEMBER 2014 PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech Tel: +49/8191/305395 ∙ Fax: +49/8191/305397 [email protected] ∙ www.petermann-technik.com ORDERING INFORMATION SUPPLY VOLTAGE OSCILLATOR FAMILY “X1“ ANY 1.2-3.63 FOR –10/+70°C “X2“ ANY 1.5-3.63 FOR –40/+85°C ULPO-RB1 TEMPERATURE RANGE FREQUENCY 32.768kHz “D” for -10 +70°C “W” for -40 +85°C ULPO-RB1-X1-1508-75-D-32.768kHz-T-S FREQUENCY STABILITY “75” for ±75 PPM (-10 to 70ºC) “100” for ±100 PPM (-40 to 85ºC) PACKAGE SIZE “1508” for 1.5 X 0.8 mm PACKING METHOD “T”: TAPE & REEL “T”: TAPE & REEL 3000 pcs. per Reel Smaller quantities possible OUTPUT DRIVE STRENGTH “S” Standard (datasheet limits) For rail-to-rail LVCMOS DC-coupled Please contact PETERMANN-TECHNIK for other values EXAMPLE: ULPO-RB1-X1-1508-75-D-32.768kHz-T-S PLEASE INDICATE YOUR REQUIRED PARAMETERS EXPRESS SAMPLES ARE DELIVERABLE ON THE SAME DAY IF ORDERED UNTIL 02:00 PM! CRYSTALS ∙ OSCILLATORS ∙ CERAMIC RESONATORS ∙ CERAMIC FILTERS ∙ SAW COMPONENTS PAGE 9 OF 10 I SPEC 01 I REV.00 I NOVEMBER 2014 PETERMANN-TECHNIK GmbH Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech Tel: +49/8191/305395 ∙ Fax: +49/8191/305397 [email protected] ∙ www.petermann-technik.com PREMIUM QUALITY BY PETERMANN-TECHNIK OUR COMPANY IS CERTIFIED ACCORDING TO ISO 9001:2008 IN OCTOBER 2013 BY THE DMSZ CERTIFIKATION GMBH. THIS IS FOR YOU TO ENSURE THAT THE PRINCIPLES OF QUALITY MANAGEMENT ARE FULLY IMPLEMENTED IN OUR QUALITY MANAGEMENT SYSTEM AND QUALITY CONTROL METHODS ALSO DOMINATE OUR QUALITY STANDARDS. © PETERMANN-TECHNIK GmbH 2014. The information contained herein is subject to change at any time without notice. PETERMANN-TECHNIK owns all rights, title and interest to the intellectual property related to PETERMANN-TECHNIK's products, including any software, firmware, copyright, patent, or trademark. The sale of PETERMANN-TECHNIK products does not convey or imply any license under patent or other rights. PETERMANNTECHNIK retains the copyright and trademark rights in all documents, catalogs and plans supplied pursuant to or ancillary to the sale of products or services by PETERMANN-TECHNIK. Unless otherwise agreed to in writing by PETERMANN-TECHNIK, any reproduction, modification, translation, compilation, or representation of this material shall be strictly prohibited. CRYSTALS ∙ OSCILLATORS ∙ CERAMIC RESONATORS ∙ CERAMIC FILTERS ∙ SAW COMPONENTS PAGE 10 OF 10 I SPEC 01 I REV.00 I NOVEMBER