CDCE706 datasheet(37/40 Pages) TI

номер детали	CDCE706

подробное описание детали	PROGRAMMABLE 3-PLL CLOCK SYNTHESIZER/MULTIPLIER/DIVIDER

PDF	40 Pages

Scroll/Zoom	100%

производитель	TI [Texas Instruments]

домашняя страница	http://www.ti.com

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37 / 40 page

Typ3.3V

Typ2.1V

Typ1.7V

PUC_ON

PUC_OFF

GND

T0411-01

EVM and Programming Software

CDCE706

www.ti.com ........................................................................................................................................... SCAS815I – OCTOBER 2005 – REVISED NOVEMBER 2008

Figure 34. Different Voltage Drops on VCC During Operation

The CDCE706 power-up circuit has built-in hysteresis. If the voltage stays above VPUC_OFF, which is typically at

1.7 V, the register content stays unchanged. If the voltage drops below VPUC_OFF, the internal register is reloaded

by the EEPROM after VPUC_ON is crossed again. VPUC_ON is typically 2.1 V. Table 8 shows the content of the

EEPROM and the register after the voltage-drop scenarios shown in Figure 34.

Table 8. EEPROM and Register Content After VCC Drop

Power Drop

EEPROM Content

Unchanged

Reloaded from EEPROM

Unchanged

Reloaded from EEPROM

The CDCE706 EVM is a development kit consisting of a performance evaluation module, the TI Pro Clock

software, and the User's Guide. Contact a Texas Instruments sales or marketing representative for more

information.

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CDCE706 датащи(PDF) 37 Page - Texas Instruments

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