JT21CT JAUCH | Alldatasheet
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Oscillator JT21CT · TCXO - TCXO with HCMOS output, 2.0 x 1.6 mm - wide operating temperature range up to +105 °C - excellent phase noise - with standby function, low standby current - ceramic/metal package RoHS 2015/863/EU RoHS compliant Pb free Conflict mineral free REACH compliant GENERAL DATA TYPE JT21CT TCXO frequency range 13.0 ~ 52.0 MHz frequency tolerance / stability at +25 °C ± 2.0 ppm (incl. 2x reflow) temperature ±2.0 ppm ~ ±10.0 ppm (see table 1) aging first year ± 1.0 ppm (at +25 °C) supply voltage ± 0.2 ppm (at VDC ±5%) load change ± 0.2 ppm current consumption 5.0 mA (< 26.0 MHz) / 7.0 mA (< 52.0 MHz) temperature operating -40 °C ~ +85 °C (temperature code K) -40 °C ~ +105 °C (temperature code P) storage -40 °C ~ +105 °C output rise & fall time 5.0 ns max. (10% <-> 90% of V DC) load max. 15 pF current max. 0.4 mA low level max. 0.2 x VDC high level min. 0.8 x VDC symmetry at 0.5 x VDC 45 % ~ 55 % max. start-up time max. 3 ms output enable time max. 3 ms output disable time max. 150 ns standby current max. 10 µA phase jitter 12 kHz ~ 20.0 MHz -300 fs RMS typ. / 500 fs RMS max. ENABLE / DISABLE FUNCTION PIN #1 (E/D CONTROL) PIN #3 (OUTPUT) high “1” (VIH ≥ 0.8 VDC) active (see note) low “0” (VIL ≤ 0.2 VDC) high impedance stop function: – oscillator stops – output high impedance NOTE – e/d control pin has weak internal pull-up, use external pull-up to ensure TCXO activation – for best supply noise rejection, connect a capacitor closely to the supply voltage pins – a separate voltage supply rail ensures best phase noise 1.6 ±0.15 2.0±0.15 # 1# 2 # 4# 3 0.65 0.95 0.85 0.2 0.7 0.63 1.14 0.43 # 1# 2 # 4# 3 0.34 ±0.1 ±0.05 ±0.05 ±0.05 ±0.05 top view side view bottom view pad layout pin connection DIMENSIONS TCXO JT21CT # 1: e/d # 2: GND # 3: output # 4: VDC in mm actual size 2507 2022-18 Jauch Quartz GmbH • e-mail: info@jauch.com • full data can be found under: www.jauch.com All specifications are subject to change without notice TABLE 1: FREQUENCY STABILITY CODE frequency stability temperature code B ± 2.0 ppm A ± 2.5 ppm Y ± 5.0 ppm X ± 10.0 ppm on request △ case-by-case, ask if available PHASE NOISE AT FO 40.0 MH z at 100 Hz -115 dBc/Hz typ. at 1 kHz -135 dBc/Hz typ. at 10 kHz -150 dBc/Hz typ. O Oscillator frequency 13.0 ~ 52.0 MHz type JT21CT = TCXO supply voltage Example: O 40.0-JT21CT-Y-P-3.3-LF (Suffix LF = RoHS compliant / Pb free) frequency stability code B = ±2.0 ppm A = ±2.5 ppm Y = ±5.0 ppm X = ±10.0 ppm operating temp. code ORDER INFORMATION 1.8 = 1.8 V 2.5 = 2.5 V 3.0 = 3.0 V 3.3 = 3.3 V
Jauch Quartz GmbH • e-mail: info@jauch.de All specifications are subject to change without notice full data can be found under: Oscillator JT21CT · Wide Temperature Range TCXO temperature (°C) time (s) 150 26 0 200 100 60 ~ 180 s 60 s max. 10 s max. 260 °C max. 180 /plusminus.lf5 °C 220 /plusminus.lf5 °C note: parts are also suitable for soldering systems with lead (Pb) content REFLOW SOLDERING PROFILE TAPING SPECIFICATION in mm Jan. Febr. Mar. Apr. May June A B C D E F G H J K L M MARKING frequency company code / stability code / date code date code: A ~ M: Jan. - Dec. 2: 2022 3: 2023 4: 2024 5: 2025 6: 2026 7: 2027 22072022-18 Jauch Quartz GmbH • e-mail: info@jauch.com • full data can be found under: www.jauch.com All specifications are subject to change without notice PACKAGING NOTE – standard packaging unit is 500 pieces per reel – customized quantities on request 4.0±0.1 8.0±0.2 4.0±0.1 2.35±0.1 1.75±0.1 1.25±0.11.96±0.1 ø 1.55±0.05 Feeding 3.5±0.05 ø 178 2.0 120° 8.75 60.5 ø 13 ±0.1 ±0.3 ±0.5 ±0.5 ±2.0 ø 21±0.5