TMS320F28375DPZP datasheet(69/226 Pages) TI

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8.9.3.5 Internal Oscillators

To reduce production board costs and application development time, all F2837xD devices contain two

independent internal oscillators, referred to as INTOSC1 and INTOSC2. By default, both oscillators are enabled

at power up. INTOSC2 is set as the source for the system reference clock (OSCCLK) and INTOSC1 is set as the

backup clock source. INTOSC1 can also be manually configured as the system reference clock (OSCCLK).

Section 8.9.3.5.1 provides the electrical characteristics of the internal oscillators to determine if this module

meets the clocking requirements of the application.

Section 8.9.3.5.1 provides the electrical characteristics of the two internal oscillators.

Note

This oscillator cannot be used as the PLL source if the PLLSYSCLK is configured to frequencies

above 194 MHz.

8.9.3.5.1 Internal Oscillator Electrical Characteristics

over recommended operating conditions (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

f(INTOSC)

Frequency, INTOSC1 and INTOSC2

9.7

10.0

10.3

MHz

f(INTOSC-STABILITY)

Frequency stability at room temperature

30°C, Nominal VDD

±0.1%

Frequency stability over VDD

30°C

±0.2%

Frequency stability

–3.0%

3.0%

f(INTOSC-ST)

Start-up and settling time

µs

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TMS320F28379D, TMS320F28379D-Q1, TMS320F28378D, TMS320F28377D

TMS320F28377D-Q1, TMS320F28376D, TMS320F28375D, TMS320F28374D

SPRS880O – DECEMBER 2013 – REVISED FEBRUARY 2021

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