MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement IM890 Series Features: Typical Applications: MEMS Technology Small SMD package: 2.0 x 1.2 mm (2012) Fixed 32.768 kHz output frequency NanoDrveTM programmable output swing for lowest power Pb-free, RoHS and REACH compliant Mobile Phones Tablets Health and Wellness Monitors Wireless Keypads Ultra-Small Notebook PC Electronic Specifications: 32.768 kHz Fixed Output Frequency Frequency Tolerance[1] ±20 ppm max TA = +25°C, Post Reflow, Vdd: 1.5V – 3.63V Frequency Stability[2] ±75 ppm max ±100 ppm max ±250 ppm max TA = -10°C to +70°C Vdd: +1.50V to +3.63V TA = -40°C to +85°C, Vdd: +1.50V to +3.63V TA = -10°C to +70°C, Vdd: +1.20V to+1.50V Aging +25°C ±2°C ±1 ppm max 1 Year +1.20V min , +3.63 V max +1.50V min, +3.63 V max 0.90 µA typ. 1.30 µA max 1.40 µA max 0.065 µA/Vpp typ. 0.125 µA/Vpp max TA = -10°C to +70°C TA = -40°C to +85°C TA - +25°C, Vdd: +1.80V No load TA = -10°C to +70°C, Vdd max, +3.63V No load TA = -40°C to +85°C, Vdd max, +3.63V No load 100 mSec max TA = -40°C to +85°C, 0 to 90% Vdd 180 mSec typ., 300 ms max 450 mSec max TA = -40°C ≤ TA ≤ +50°C, valid output TA = +50°C < TA ≤ +85°C, valid output Operational Supply Voltage Core Operating Current [3] Output Stage Operating Current[3] Power-Supply Ramp Start-up Time at Power-up [4] st TA = -40°C to +85°C, Vdd: 1.5V – 3.63V. No load Notes: 1. Measured peak-to-peak. 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.Stability is specified for two operating voltage ranges. Stability progressively degrades with supply voltage below 1.5V. Measured peak-topeak. Inclusive of Initial Tolerance at 25°C, and variations over operating temperature, rated power supply voltage and load. 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 + (0.065 µA/V) * (peak-to-peak output Voltage swing). 4.Measured from the time Vdd reaches 1.5V. Output Rise / Fall Time LVCMOS Output Option, TA = -40°C to +85°C,, typical values are at TA = +25°C 100 nSec typ. 200 nSec max 10-90% (Vdd), 15 pF load, Vdd = 1.5V to 3.63V 50 nSec max 10-90% (Vdd), 5 pF load, Vdd ≥ 1.62V 48/52% min/max Symmetry Logic “1” Logic ‘0” 90% min Vdd: 1.5V – 3.63V. IOH = -10 μA, 15 pF 10% max Vdd: 1.5V – 3.63V. IOH = -10 μA, 15 pF NanoDriveTM Programmable, Reduced Swing Output 200 nSec max Output Rise / Fall Time Symmetry 30-70% (VOL/VOH), 10 pF Load 48/52% min/max AC-coupled Programmable Output Swing DC-Biased Programmable Output Voltage High Range DC-Biased Programmable Output Voltage High Range Programmable Output Voltage Swing Tolerance Period Jitter 0.20 V to 0.80 V typ. 0.60 V to 1.225 V typ. Vdd: 1.5V – 3.63V, 10 pF Load, IOH / IOL = ±0.2 μA. IM890 does not internally AC-couple. This output description is intended for a receiver that is AC-coupled. See Table 2 for acceptable NanoDrive swing options. Vdd: 1.5V – 3.63V. IOH = -0.2 μA, 10 pF Load. See Table 1 for acceptable VOH/VOL setting levels 0.35 V to 0.80 V typ. Vdd: 1.5V – 3.63V. IOL = 0.2 μA, 10 pF Load. See Table 1 for acceptable VOH/VOL setting levels. ±0.055 V max TA = -40°C to +85°C, Vdd = 1.5V to 3.63V. 35 nSecRMS typ. Cycles = 10,000, TA = 25°C, Vdd = 1.5V – 3.63V ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: [email protected] ● www.ilsiamerica.com Specifications subject to change without notice Rev 02/15/16_A Page 1 of 10 MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement IM890 Series Ordering Information: Part number Guide Temp Range/ Freq Stability In ppm Package C I IM890 ±75 (-10°C to +70°C) ±100 (-40°C to +85°C) DC- coupled Output Voh Table 4 Coupled A = AC Coupled D = DC Coupled 6 = 600 mV 7 = 700 mV 8 = 800 mV 9 = 900 mV 0 = 1.00 V 1 = 1.10 V 2 = 1.225 V A = AC- coupled C = rail-to rail LVCMOS DC- coupled Output Vol Or AC Swing Table 3 1 = 200 mV (AC-coupled only) 2 = 250 mV (AC-coupled only) 3 = 350 mV 4 = 400 mV 5 = 500 mV 6 = 600 mV 7 = 700 mV 8 = 800 mV C = rail-to rail LVCMOS Note: 1) Industrial temp & corresponding 100 ppm frequency stability. Note, 100 ppm is only available for the industrial temp range, and 75 ppm is only available for the commercial temp range. Example1: Park Number: IM890-CDCC-32.768 Package IM890 Temp Range/ C Freq Stabitlity in ppm Coupled D DC-coupled Output (Voh) C DC-coupled Output (Voh) or C AC Swing 32.768k Frequency Output ILSI Part Number Temperature Range = -10°C to +70°C Frequency Stability = ±75 ppm DC Coupled rail-to rail LVCMOS rail-to rail LVCMOS Example2: Park Number: IM890-IDCC-32.768 Package IM890 Temp Range/ I Freq Stabitlity in ppm Coupled D DC-coupled Output (Voh) C DC-coupled Output (Voh) or C AC Swing 32.768k Frequency Output ILSI Part Number Temperature Range = -40°C to +85°C Freguency Stability = ±100 ppm DC Coupled rail-to rail LVCMOS rail-to rail LVCMOS Notes: For XTAL replacement applications that will keep the chipset oscillator enabled, configure the NanoDrive™ output for a swing similar to the XTAL, approximately 250mV Please consult with sales department for any other parameters or options. Oscillator specification subject to change without notice. ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: [email protected] ● www.ilsiamerica.com Specifications subject to change without notice Rev 02/15/16_A Page 2 of 10 MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement IM890 Series Absolute Maximum Limits Parameter Test Condition Value -0.5V to +3.63 V Continuous Power Supply Voltage Range (Vdd) ≤30 minutes, over -40°C to +85°C Short Duration Maximum Power Supply Voltage (Vdd) Short Duration Maximum Operating Temperature Range Human Body Model ESD Protection +4.0V Vdd = 1.5V - 3.63V Continuous Maximum Operating Temperature Range 105°C Vdd = 1.5V - 3.63V, ≤30 mins 125°C HBM, JESD22-A114 3000 V JESD220C101 Charge-Device Model (CDM) ESD Protection 750 V TA = 25°C Machine Model (MM) ESD Protection 300V JESD78 Compliant Latch-up Tolerance Mechanical Shock Resistance Mil 883, Method 2002 Mechanical Vibration Resistance Mil 883, Method 2007 10,000 g 70 g 150°C 2012 SMD Junction Temperature -65°C to +150°C Storage Temperature Pin Configuration Pin Symbol I/O 1 N/C No Connect 2 GND Power Supply Ground 3 CLK Out Output 4 Vdd Power Supply Functionality SMD Package No Connect. Will not respond to any input signal. When interfacing to an MCU’s XTAL input pins, this pin is typically connected to the receiving IC’s X Out pin. In this case, the IM890 will not be affected by the signal on this pin. If not interfacing to an XTAL oscillator, leave pin 1 floating (no connect). Connect to ground. All GND pins must be connected to power supply ground. Oscillator clock output. When interfacing to an MCU’s XTAL, the CLK Out is typically connected to the receiving IC’s X IN pin. The IM890 oscillator output includes an internal driver. As a result, the output swing and operation is not dependent on capacitive loading. This makes the output much more flexible, layout independent, and robust under changing environmental and manufacturing conditions. Connect to power supply 1.5V ≤ Vdd ≤ 3.63V for operation over -40°C to +85°C temperature range. Under normal operating conditions, Vdd does not require external bypass/decoupling capacitor(s). Internal power supply filtering will reject more than ±150 mVpp with frequency components through 10 MHz. System Block Diagram Figure 1. ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: [email protected] ● www.ilsiamerica.com Specifications subject to change without notice Rev 02/15/16_A Page 3 of 10 MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement IM890 Series Power Supply Noise Immunity Description 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. XTAL Footprint Compatibility (SMD Package) The IM890 is a replacement to the 32 kHz XTAL in the 2.0 x 1.2 mm (2012) package. Unlike XTAL resonators, The ILSI silicon MEMS oscillators require a power supply (Vdd) and ground (GND) pin. Vdd and GND pins are conveniently placed between the two large XTAL pins. When using the ILSI Solder Pad Layout (SPL), the IM890 footprint is compatible with existing 32 kHz XTALs in the 2012 SMD package. Figure 2 shows the comparison between the quartz XTAL footprint and the ILSI footprint. Figure 2 IM890 Footprint Compatibility with Quartz Crystal Footprint Frequency Stability The IM890 is factory calibrated (trimmed) to guarantee frequency stability to be less than 20 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 IM890 temperature coefficient is extremely flat across temperature. The device maintains less than 100 ppm frequency stability over the full operating temperature range when the operating voltage is between 1.5 and 3.63V. 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. When measuring the IM890 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 kHz clock will give false readings with faster gate times. The IM890 is an ultra-small 32 kHz oscillator. 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 bypass-decoupling capacitor. This feature further simplifies the design and keeps the footprint as small as possible. Internal power supply filtering is designed to reject AC-noise greater than ±150 mVpp magnitude and beyond 10 MHz frequency component. Output Voltage The IM890 has two output voltage options One option is a standard LVCMOS output swing. The second option is the NanoDrive reduced swing output. Output swing is customer specific and programmed between 200 mV and 800 mV. For DC-coupled applications, output VOH and VOL are individually factory programmed to the customers’ requirement. VOH programming range is between 600 mV and 1.225V in 100 mV increments. Similarly, VOL programming range is between 350 mV and 800 mV. For example; a PMIC or MCU is internally 1.8V logic compatible, and requires a 1.2V VIH and a 0.6V VIL. Simply select IM890 NanoDrive factory programming code to be “D14” and the correct output thresholds will match the downstream PMIC or MCU 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 NanoDrive 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 VOL is not acceptable. When the output is interfacing to an XTAL input that is internally AC-coupled, the IM890 output can be factory programmed to match the input swing requirements. For example, if a PMIC or MCU input is internally AC-coupled and requires an 800mV swing, then simply choose the IM890 NanoDrive programming code “AA8” in the part number. It is important to note that the IM890 does not include internal ACcoupling capacitors. Please see the Part Number Ordering section of the datasheet for more information about the part number ordering scheme. Power-up The IM890 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 - 20 ms (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. IM890 NanoDrive™ Figure 4 shows a typical IM890 output waveform (into a 10 pF load) when factory programmed for a 0.70V swing and DC bias (VOH/VOL) for 1.8V logic: ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: [email protected] ● www.ilsiamerica.com Specifications subject to change without notice Rev 02/15/16_A Page 4 of 10 MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement IM890 Series IM890 Full Swing LVCMOS Output Example: The IM890 can be factory programmed to generate fullswing LVCMOS levels. Figure 5 shows the typical LVCMOS waveform (Vdd = 1.8V) at room temperature into a 15 pF load. • NanoDrive™ part number coding: D14. • Example part number: IM890-ID14-32.768 • VOH = 1.1V, VOL = 0.4V (V_sw = 0.70V) Figure 4. IM890-ID14-32.768 Output Waveform (10 pF Load) Figure 5. LVCMOS Waveform Vdd = +1.8 V into 15pF Load Table 1 shows the supported NanoDrive™ VOH, VOL factory programming options. Table 1. Acceptable VOH/VOL NanoDrive™ 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 Example: • LVCMOS output part number coding is always DCC • Example part number: IM890-4DCC-32.768 Calculating Load Current No Load Supply Current Table 2 shows the supported AC coupled Swing levels. The “AC-coupled” terminology refers to the programming description for applications where the downstream chipset includes an internal AC-coupling capacitor, and therefore, only the output swing is important and VOH/VOL are not relevant. When calculating no-load power for the IM890, 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: Total Supply Current (no load) = Idd Core + (65nA/V)(Voutpp) Example 1: Full-swing LVCMOS • Vdd = 1.8V • Idd Core = 900nA (typ) • Voutpp = 1.8V (LVCMOS) Supply Current = 900nA + (65nA/V)(1.8V) = 1017nA Table 2. Acceptable AC-Coupled Swing Levels 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 2: NanoDrive™ 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 Total Supply Current with Load Example: • NanoDrive part number coding: AA2. Example part number: IM890-4AA2-32.768 • Output voltage swing: 0.250V To calculate the total supply current, including the load, follow the equation listed below. Note the 30% reduction in power with NanoDrive™. The values listed in Tables 1 and -2 are nominal values at 25°C and will exhibit a tolerance of ±55 mV across Vdd and -40°C to 85°C operating temperature range. ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: [email protected] ● www.ilsiamerica.com Specifications subject to change without notice Rev 02/15/16_A Page 5 of 10 MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement IM890 Series Total Current = Idd Core + Idd Output Driver (65nA/V*Voutpp) + Load Current (C*V*F Example1:Full‐swingLVCMOS • 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 Example2:NanoDrive™ReducedSwing • 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 ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: [email protected] ● www.ilsiamerica.com Specifications subject to change without notice Rev 02/15/16_A Page 6 of 10 MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement IM890 Series Environmental Specifications: Environmental Compliance Parameter Condition/Test Method MIL-STD-883F, Method 2002 MIL-STD-883F, Method 2007 JESD22, Method A104 MIL-STD-883F, Method 2003 MSL Level 1 at +260ºC Mechanical Shock Mechanical Vibration Temperature Cycle Solderability Moisture Sensitivity Level Pb Free Solder Reflow Profile Units are backward compatible with +240ºC reflow processes Ts max to TL (Ramp-up Rate) Preheat Temperature min (Ts min) Temperature typ (Ts typ) Temperature max (Ts max) Time (Ts) Ramp-up Tate (TL to Tp Time Maintained Above Temperature (TL) Time (TL) Peak Temperature (Tp) Time within 5ºC to Peak Temperature (Tp) Ramp-down Rate Tune 25ºC to Peak Temperature Moisture Sensitivity Level (MSL) ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: [email protected] ● www.ilsiamerica.com Specifications subject to change without notice 3ºC / second max 150ºC 175ºC 200ºC 60 to180 seconds 3ºC / second max 217ºC 60 to 150 seconds 260ºC max for seconds 20 to 40 seconds 6ºC / second max 8 minute max Level 1 Rev 02/15/16_A Page 7 of 10 MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement IM890 Series Typical Operating Curves (TA = 25°C, Vdd = 1.8V, unless otherwise stated) Initial Tolerance Histogram Frequency Stability Over Temperature Core Current Over Temperature Output Stage Current Over Temperature Start-up Time ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: [email protected] ● www.ilsiamerica.com Specifications subject to change without notice Rev 02/15/16_A Page 8 of 10 MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement IM890 Series Typical Operating Curves (cont.) Power Supply Noise Rejection (± 150 mV Noise) TM NanoDrive Output Waveform Voh = 1.1V, Vol = 0.4V; IM890-ID14-32.768 LVCMOS Output Waveform Vswing = 1.8V: IM890-IDCC-32.768 ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: [email protected] ● www.ilsiamerica.com Specifications subject to change without notice Rev 02/15/16_A Page 9 of 10 MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement IM890 Series Mechanical Details: 2.0 x 1.2 mm SMD Package IM890 Series XTAL Compatible Suggested Land Pattern Marking Line 1 = XXXXX (Lot code) Dot to denote Pin 1 location Package Information Leadframe: C194 Plating: NiPdAu Notes:` All dimensions are in mm. Do not scale drawings. ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: [email protected] ● www.ilsiamerica.com Specifications subject to change without notice Rev 02/15/16_A Page 10 of 10