AD52070 datasheet(3/33 Pages) ESMT

3 / 33 page

ESMT

AD52070

Elite Semiconductor Microelectronics Technology Inc.

Publication Date: Oct. 2021

Revision: 1.1

3/33

Pin Assignments

G V D D

P L IM IT

L IM R A T E

G A IN /S L V

R IN N

P V C C

G N D

O U T P R

B S N R

O U T N R

BSPR

A V C C

L IN N

G N D

L IN P

AM 0

P V C C

G N D

BSPL

O U T P L

B S N L

AM 1

O U T N L

E -T S S O P - 28 L

S D Z

R IN P

( T O P V IE W )

S Y N C

P V C C

Pin Description

NAME

E-TSSOP

-28L

TYP

DESCRIPTION

SDZ

Shutdown signal for IC (low = disabled, high = operational). Voltage compliance to

AVCC. Chip is with internal pull low, 250kohm@normal state, <250ohm@ fault state.

RINP

Positive audio input for right channel. Connect to GND for MONO mode.

RINN

Negative audio input for right channel. Connect to GND for MONO mode.

PLIMIT

Voltage level for AGC or power limiter. Connect a resistor divider from GVDD to GND

to set AGC or power limit level. Give VPLIMIT ≦ 2.1V to set AGC or power limit level.

Connect to GND to disable AGC or power limit function, and chip will into mute

function when connect to GVDD ( ≧ 2.4V).

GVDD

5V regulated output, with a 1uF X7R (or X5R) ceramic decoupling capacitor is

necessary. Not to be used as a supply or connected to any components other than

the PLIMIT and GAIN/SLV resistor dividers.

GAIN/SLV

Selects gain depending on pin voltage divider.

LIMRATE

Decay speed for clip free for AGC or power limiter. Connect a resistor divider from

GVDD to GND to set decay speed. Connect directly to GND to enable power limit

function.

GND

Power ground. Connect to the thermal pad.

LINP

Positive audio input for left channel. Connect to GND for PBTL mode.

LINN

Negative audio input for left channel. Connect to GND for PBTL mode.

AM1

AM avoidance frequency selection 1. Chip is with internal pull low, 250kohm.

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