M685 datasheet(7/7 Pages) IDT

Part #	M685

Description	DUAL SAW, SELECTABLE FREQUENCY VCSO

PDF	7 Pages

Scroll/Zoom	100%

Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

Logo

7 / 7 page

M685 Datasheet Rev 0.7 - Errata

Revised 29Jul2009

Integ r ated De vice Te chn ology, In c.

● Com m u nicatio n M odu les ● www.id t.co m ● te l (5 08) 8 52-540 0

M685

DUAL SAW, SELECTABLE FREQUENCY VCSO

Er rata

PRODUCT APPLICATION CAUTION

F_SEL Change During Power-Up Can Affect Output Frequency Accuracy

M685E1

The M685 features an F_SEL input which is used to select the internal VCSO frequency.

The F_SEL input logic level should not be changed while the M685 device is in operation (that is, voltage

is applied to the pin VCC), particularly when the pin VIN (the control voltage input) is above 2.0V.

Changing the F_SEL input logic level during operation may result in an erroneous output frequency.

It is safe to change F_SEL during operation if pin VIN can be held low, or at least below 2.0V.

M685 Datasheet(PDF) 7 Page - Integrated Device Technology