High Temperature SMD TCXO/VCTCXO | Automotive and Communications

Issue: B, 7 November 2024

Specifications are subject to change without notice

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RST2016HC

The RST2016HC is a series of high-temperature TCXO (Temperature-Compensated Crystal Oscillator) and VCTCXO (Voltage-

Controlled Temperature-Compensated Crystal Oscillator) with CMOS output. It is designed for high-performance Automotive

applications to comply with AEC-Q200, where the required frequency stability is ±2.5 ppm over operating temperatures from

-40 to 105°C.

The RST2016HC has an analogue ASIC for the oscillator and a high-order temperature compensation circuit in a small font

factor 2.0 x 1.6 x 0.7 mm package. This low-power SMD TCXO provides a voltage control option of VCTCXO, with a wide

frequency range available from 13 to 52 MHz. Supply voltage options are 1.8 to 3.3 V.

Standard Specifications

Parameter

Min.

Typ.

Max.

Unit

Test Condition / Description

Nominal frequency (Fn)

13 – 52

MHz

Frequency calibration

±1

ppm

Offset from nominal frequency measured at 25°C ±2°C

Reflow shift

±1

ppm

Two consecutive reflows

Operating temperature range

-40

105

°C

The operating temperature range over which the

frequency stability is measured

Frequency stability

over temperature

±2.5

ppm

Referenced to the midpoint between minimum and

maximum frequency value over the specified

temperature range1

Static temperature hysteresis

0.6

ppm

Frequency change after reciprocal temperature

ramped over the operating range. Frequency

measured before and after at 25°C

Sensitivity to supply voltage

variations

±0.1

ppm

VDD varied ±5% at 25°C

Sensitivity to load variations

±0.1

ppm

±10% load change at 25°C2

Long term stability (Ageing)

±1

ppm

Frequency drift over 1 year at 25°C

Supply voltage (VDD)

1.8 – 3.3

V

With a tolerance of ±5%

Supply current

3.8

mA

At maximum VDD2

Power down

≥80%

≤20%

VDD

Oscillation Enable (VIH)

Oscillation Disable (VIL)

Output voltage level low (VOL)

Output voltage level high (VOH)

90

10

%VDD

Measured with a capacitive load of 15pF

Duty cycle

45

55

Measured at 50% VDD trigger level

Output load

15

pF

Start-up time

Normal mode

Fast mode

3

2

ms

@ 26 MHz ±2.5 ppm

Rise time / Fall time

5

ns

@ 10% to 90% VDD, CMOS output

1

Parts should be shielded from drafts causing unexpected thermal gradients. Temperature changes due to ambient air currents on the oscillator can lead to

short term frequency drift.

2

Specified for load stated in oscillator output section at 25°C.

Features

Applications

2.0 x 1.6 x 0.7

mm



High-end operating temperature up to 105°C



Excellent phase noise performance



Output: CMOS



Automotive



Communications



Consumer devices



Wi-Fi