RTH7050EA RAKON | Alldatasheet
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Technical content
Mercury+™ Hybrid TCXO | Stratum 3E Issue: A, 2 February 2024 Specifications are subject to change without notice. Copyright © 2024 Rakon Limited. All rights reserved Page 1 of 10 Contact Us RTH7050EA The RTH7050EA is a Hybrid TCXO designed for Stratum 3E applications. Using the cutting- edge proprietary Mercury+™ ASIC with a high-Q crystal resonator and a built-in heating control system, this TCXO achieves frequency stability of 10 ppb pk -pk over extended operating temperatures ranging from -40 to 95°C within 20°C windows. The frequency ageing is less than 1 ppb/day, and the phase noise floor is as low as -160 dBc/Hz (at 10 MHz). With a small form factor and few discrete components, the RTH7050EA consumes only 400 mW at room temperature and boasts a faster warm -up time of 3 seconds. The RTH7050EA is a high-performance TCXO with frequencies available from 10 to 50 MHz. Its excellent specifications and features make it the ideal choice for Telecom Boundary Clocks (T-BC) Class C and Class D, which require low dynamic noise contribution from oscillators over the operating temperature range. Frequency Stability over Temperature (FvT) Warm-Up Time (≤±20 ppb) < 15s @ -25°C Phase Noise – 38.4 MHz RTH7050EA (Typical value at 25°C) Key specifications Applications 7.5 x 5.5 x 3.3 mm Frequency: 10 to 50 MHz Frequency stability (FvT): ±5 ppb Operating temperature: -40 to 95°C, -40 to 105°C available upon request All causes long-term stability: ±4.6 ppm/20 year Floor noise: -160 dBc/Hz @ 10 MHz Output waveform: Clipped sinewave or CMOS Supply voltage: 2.7 to 5 V Stratum 3E PTP Enabled Ethernet Switches and Routers Cable Modem CMTS and Remote PHYs G.8273.3, G.8273.4 Temperature (°C) Frequency stability (ppb)
Niku™ Ultra-Low Phase Noise, Low RMS Jitter TCXO/VCTCXO Issue: A, 2 February 2024 Specifications are subject to change without notice. Copyright © 2024 Rakon Limited. All rights reserved Page 2 of 10 Contact Us RTH7050EA
1.0 Absolute Maximum Rating1
2.0 Frequency Characteristics2
Parameter Min. Typ. Max. Unit Test Condition / Description a. Nominal frequency (Fn) 10 - 50 MHz Standard frequencies: 10, 12.8, 19.2, 20, 25, 30.72, 38.4, 48, 50 MHz b. Frequency calibration, at time of shipment ±0.2 ppm At 25°C ± 2°C, after warm-up, reference to Fn c. Reflow shift ±0.5 ppm After 1 hour recovery at 25°C d. Operating temperature range -40 +95 °C +105°C available on request e. Frequency stability over temperature in still air 10 ppb Peak-to-peak, in any 20°C window f. Frequency slope ΔF/ΔT in still air 0.1 0.5 ppb/°C Temperature ramp rate ≤ 1°C/minute g. Supply voltage stability ±5 ppb ±2% variation, reference to frequency at 3.3V h. Load sensitivity ±5 ppb ±10% variation, reference to frequency at 15pF i. Warm-up time (F0-F1) 3 3 20 s Time needed after power on for frequency to be within ±20ppb of stable frequency j. Acceleration sensitivity 1 – 2.5 ppb/g Gamma vector of all three axes from 30Hz to 1500Hz <1ppb/g available for specific requirement k. Long term stability (ageing)4 ±0.5 ±1 ppb Per day l. All causes stability ±4.6 ppm Including calibration, temperature, supply voltage & load changes and 20 years life, reference to Fn m. Wander generation5 TDEV compliant with GR-1244 fig 5-4 & G.812 types II & III fig 2 MTIE compliant with GR-1244 fig 5-5 & G.812 types II & III fig 1
3.0 Root Allan Variance
Parameter Min. Typ. Max. Unit Test Condition / Description a. Root Allan Variance (RAV) 50*10 -12 20*10 -12 tau = 0.1s tau = 1.0s 1 Operating beyond this limit may result in change or permanent damage to the device. 2 The characteristics of the component may be temporarily affected by the processes of assembly and soldering. The frequency specifications apply after 48 hours of continuous operation after assembly. Nominal conditions (T=25°C, Vcc=3.3V, Cload=15pF) apply unless otherwise stated. 3 Parameter is assembly and operating history dependent. 4 After 60 days of continuous operation. 5 Oscillator stabilised 24 hours at constant temperature (±1°C, still air). Data subjected to relevant loop filter values (-3dB cut-off, 2nd order high pass). Parameter Min. Max. Unit Note a. Storage temperature -55 125 °C b. Supply voltage (Vcc) -0.5 6 V c. Load 50 pF
Niku™ Ultra-Low Phase Noise, Low RMS Jitter TCXO/VCTCXO Issue: A, 2 February 2024 Specifications are subject to change without notice. Copyright © 2024 Rakon Limited. All rights reserved Page 3 of 10 Contact Us 15*10 -12 40*10 -12 20*10 -11 tau = 10s tau = 100s tau = 1000s
4.0 Power Supply
Parameter Min. Typ. Max. Unit Test Condition / Description a. Supply voltage (Vcc) x.xx 2.7 – 5 x.xx V Nominal value in the range ±5% variation b. Input power (Warm up) 1200 1500 mW At Vcc = 3.3V c. Input power (Steady state in still air at 25°C) 400 500 440 540 mW At Vcc = 3.3V, over -40 to 95°C At Vcc = 3.3V, over -40 to 105°C 5.0 Oscillator Output – Regulated CMOS 1.0V Parameter Min. Typ. Max. Unit Test Condition / Description a. Output voltage level low (VOL) 0 0.1 V b. Output voltage level high (VOH) 0.9 1.1 V c. Rise and fall time 1 2 ns 10% to 90% level d. Duty cycle 45 55 % At 50% level e. Load 15 pF Nominal f. Waveform screenshot (Example at 20MHz) 6.0 Oscillator Output – Regulated CMOS 1.8V Parameter Min. Typ. Max. Unit Test Condition / Description a. Output voltage level low (VOL) 0 0.15 V b. Output voltage level high (VOH) 1.65 1.95 V c. Rise and fall time 1 2 ns 10% to 90% level d. Duty cycle 45 55 % At 50% level e. Load 15 pF Nominal
Niku™ Ultra-Low Phase Noise, Low RMS Jitter TCXO/VCTCXO Issue: A, 2 February 2024 Specifications are subject to change without notice. Copyright © 2024 Rakon Limited. All rights reserved Page 4 of 10 Contact Us f. Waveform screenshot (Example at 20MHz) 7.0 Oscillator Output – Regulated CMOS 2.5V Parameter Min. Typ. Max. Unit Test Condition / Description a. Output voltage level low (VOL) 0 0.2 V b. Output voltage level high (VOH) 2.3 2.7 V c. Rise and fall time 1 2 ns 10% to 90% level d. Duty cycle 45 55 % At 50% level e. Load 15 pF Nominal f. Waveform screenshot (Example at 20MHz)
8.0 Output Waveform – CMOS (Unregulated)
Parameter Min. Typ. Max. Unit Test Condition / Description a. Output voltage level low (VOL) 10% Vcc V
Niku™ Ultra-Low Phase Noise, Low RMS Jitter TCXO/VCTCXO Issue: A, 2 February 2024 Specifications are subject to change without notice. Copyright © 2024 Rakon Limited. All rights reserved Page 5 of 10 Contact Us b. Output voltage level high (VOH) 90% Vcc V c. Rise and fall time 1 2 ns 10% to 90% level d. Duty cycle 45 55 % At 50% level e. Load 15 pF Nominal f. Waveform screenshot (Example at 20MHz, 3.3V)
9.0 SSB Phase Noise (10 MHz, Typical value at 25°C)
Parameter Min. Typ. Max. Unit. Test Condition / Description 1Hz offset -82 dBc/Hz 10Hz offset -114 dBc/Hz 100Hz offset -114 dBc/Hz 1kHz offset -158 dBc/Hz 10kHz offset -160 dBc/Hz 100kHz offset -160 dBc/Hz 1MHz offset -160 dBc/Hz
10.0 Marking
Parameter Test Condition / Description a. Type Engraved b. Line 1 [R FFFF YM ] Rakon identifier R, Frequency FFFF (M=MHz, e.g. 19M2=19.2MHz), Year Y (A=2010, B=2011, …), Month M (1=Jan, 2=Feb, …, A=Oct, B=Nov, C=Dec) c. Line 2 [ • LLL ] Pin 1 • identifier (embossed), Lot code LLL
11.0 Manufacturing Information
Parameter Test Condition / Description a. Reflow Reflow profile as per IPC/JEDEC J-STD-020E (see drawing)
Niku™ Ultra-Low Phase Noise, Low RMS Jitter TCXO/VCTCXO Issue: A, 2 February 2024 Specifications are subject to change without notice. Copyright © 2024 Rakon Limited. All rights reserved Page 6 of 10 Contact Us b. Packaging description Tape & Reel as per EIA-481-E (see drawing) c. Application note For optimum performance follow the instructions in Guidelines for use of Mercury™ /Mercury+™ Oscillators d. Net weight 17 mg/pc
12.0 Environmental Specification6
Parameter Test Condition / Description a. RoHS compliant Parts are fully compliant with the European Union directives 2011/65/EU and 2015/863/EU (amending annex II to directive 2011/65/EU) on the restriction of the use of certain hazardous substances in electrical and electronic equipment b. Solderability IPC/ECA J-STD-002, method 2, precondition 150°C, 16 hours c. Latch Up EIA/JESD78, tested at room temperature and maximum ambient operating temperature d. Electrostatic Discharge (ESD) Human Body Model (HBM), JEDEC JS-001, ≥ 2000V Charged Device Model (CDM), JESD22-C101, ≥ 1000V Machine Model (MM), JESD22-A115, ≥ 200V e. Low Temperature Storage JESD22-A119, 1000 hours at -55°C, unbiased f. Thermal Shock JESD22-A104 / MIL-STD-883, method 1010, 15 cycles from -55°C to 125°C g. Temperature Humidity Bias EIA/JESD22-A101-B, 85°C / 85% RH, 1008 hours, at max. Vcc h. Temperature Cycling JESD22-A104 / MIL-STD-883, method 1010, 1000 cycles, -55°C to +125°C, non-operating, 15 minute soak i. High Temperature Operating Life JESD22-A108, ≥ 2000 hours at 125°C & max. Vcc j. Cold Power Cycling Rakon standard, -40°C, 12 minutes OFF, 4 minutes ON, 1000 cycles k. Frequency Ageing MIL-PRF-55310, 1008 hours l. Mechanical Shock MIL-STD-202 (method 213), 1500g, 0.5ms duration, 18 shocks total m. Vibration JESD22-B103 (section 4.2.2), test Fc: 20g, 20 to 2000Hz, 4 minute sweep, 4 sweeps x 3 axes 13.0 3D Model Parameter Remarks Package size 7.5 x 5.5 x 3.3 mm STEP file RTH7050EA 3D model To open or view the STP file, you will need to import it into one of the following software programs: Autodesk Fusion 360, CATIA, SolidWorks, Solid Edge, TurboCAD, Kubotek KeyCreator, FreeCAD, ABViewer, ShareCAD, or eMachineShop. 6 For all relevant tests the units are pre-conditioned as per JESD22-A113 (5 temperature cycles -40°C to +60°C + bake for 24 hours at T = +125°C + moisture soak for 168 hours at +85°C / 85% RH + 3x reflow at TMAX = +260°C).
Niku™ Ultra-Low Phase Noise, Low RMS Jitter TCXO/VCTCXO Issue: A, 2 February 2024 Specifications are subject to change without notice. Copyright © 2024 Rakon Limited. All rights reserved Page 7 of 10 Contact Us
14.0 Model Outline and Test Circuit
1, 2 NC
3 Do not connect (GND optional)
4 GND
5 RF Output
6, 7, 8 NC
9 Supply Voltage (Vcc)
10 Do not connect (GND optional)
C2 10 µF CL 15 pF (Incl. Probe) RL ∞
Niku™ Ultra-Low Phase Noise, Low RMS Jitter TCXO/VCTCXO Issue: A, 2 February 2024 Specifications are subject to change without notice. Copyright © 2024 Rakon Limited. All rights reserved Page 8 of 10 Contact Us
15.0 Tape and Reel
Niku™ Ultra-Low Phase Noise, Low RMS Jitter TCXO/VCTCXO Issue: A, 2 February 2024 Specifications are subject to change without notice. Copyright © 2024 Rakon Limited. All rights reserved Page 9 of 10 Contact Us
16.0 Reflow
Niku™ Ultra-Low Phase Noise, Low RMS Jitter TCXO/VCTCXO Issue: A, 2 February 2024 Specifications are subject to change without notice. Copyright © 2024 Rakon Limited. All rights reserved Page 10 of 10 Contact Us
17.0 Disclaimer
Parameter Test Condition / Description a. Disclaimer "Samples supplied according to this specification are supplied from our development or pre- production programme and are not qualification approved products. No condition, warranty or representation regarding quality, suitability, performance, life or continuation of supply is given or implied and Warranty in clause 7 of our standard Conditions of Sale is not applicable. The right is reserved to change the design or specification or cease supply without notice." Rakon Limited