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Digital interface characteristics, Internal power-on reset threshold voltages, Figure 2. power-on reset threshold sequence – Cirrus Logic CS4353 User Manual

Page 10: Figure 2.power-on reset threshold sequence, Cs4353 digital interface characteristics

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10

DS803F3

CS4353

DIGITAL INTERFACE CHARACTERISTICS

Test conditions (unless otherwise specified): AGND = DGND = CPGND = 0 V; all voltages with respect to ground.

INTERNAL POWER-ON RESET THRESHOLD VOLTAGES

Test conditions (unless otherwise specified): AGND = DGND = CPGND = 0 V; all voltages with respect to ground.

Figure 2. Power-on Reset Threshold Sequence

Parameters

Symbol Min Typ

Max

Units

High-Level Input Voltage

1.2 V <

VL  3.3 V

0.9 V

VL  1.2 V

V

IH

V

IH

0.7xVL
0.9xVL

-
-

-
-

V
V

Low-Level Input Voltage

1.2 V <

VL  3.3 V

0.9 V

VL  1.2 V

V

IL

V

IL

-
-

-
-

0.3xVL
0.1xVL

V
V

Input Leakage Current

I

in

-

-

±10

A

Input Capacitance

-

8

-

pF

Parameters

Symbol

Min

Typ

Max

Units

Internal Reset Asserted at Power-On

V

on1

-

1.00

-

V

Internal Reset Released at Power-On

V

on2

-

2.36

-

V

Internal Reset Asserted at Power-Off

V

off

-

2.22

-

V

VCP

V

on2

V

on1

V

off

DGND

HI

LO

No Power

reset

undefined

reset

active

DAC

Ready

reset

active

reset

(internal)