VX6953CB datasheet(94/107 Pages) STMICROELECTRONICS

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Electrical characteristics

VX6953CB

94/107

8209023 Rev 5

12.4

System clock - EXTCLK

12.5

Power down control - XSHUTDOWN

Table 49. System clock - EXTCLK

Symbol

Parameter

Min.

Max.

Unit

Leakage current

4(1)

1. With DC coupled square wave clock.

30(2)

2. With DC VDIG applied.

μA

VCL

DC coupled square wave low level

0.3 * VDIG

VCH

DC coupled square wave high level

0.7 VDIG

VDIG+0.5V

VCAC

AC coupled sine wave

0.5

1.2

fEXTCLK

Clock frequency input

6.0 - 1%(3)

3. Nominal frequencies are 6.0 to 27 MHz with a 1% centre frequency tolerance. Tested at

characterization only.

27 + 1%(3)

MHz

Duty cycles Clock frequency duty cycles

Input jitter

EXTCLK input jitter

Refer to Jitter

application

note(4)

4. ST Microelectronics will provide upon request an application note detailing the EXTCLK input

jitter requirements.

Table 50. Power down control - XSHUTDOWN

Symbol

Parameter

Min.

Typ.

Max.

Unit

VIL

Low level input voltage

0.3 * VDIG

VIH

High level input voltage

0.7 * VDIG

VANA

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