STA333W datasheet(10/42 Pages) STMICROELECTRONICS

10 / 42 page

Electrical specification

STA333W

10/42

SNR

Signal to noise ratio in

ternary mode

A weighted

100

Signal to noise ratio in

binary mode

A weighted

PSRR

Power supply rejection

ratio

DXX stereo mode, < 5 kHz,

Vripple = 1 V RMS

audio input = dither only

XTALK

Crosstalk

DXX stereo mode, < 5 kHz,

One channel driven at 1 W

the other channel measured

Peak efficiency

in DXX mode

Po = 2 x 20 W into 8

Ω

The ILIM data is for 1 channel of BTL configuration, thus, 2 x ILIM drives the 2-channel BTL configuration.

The current limit is active when OCRB = 0 (see Table 24: Over current warning detect adjustment bypass

on page 26. When OCRB = 1 then ISC applies.

The ISC current limit data is for 1 channel of BTL configuration, thus, 2 x ISC drives the 2-channel BTL

configuration. The short-circuit current is applicable when OCRB = 1 (see Table 24: Over current warning

detect adjustment bypass on page 26.

Table 6.

Electrical characteristics (continued)

(VCC = 18 V, VDD = 3.3 V, fsw = 384 kHz, Tamb = 25° C, RL = 8 Ω unless

otherwise specified)

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

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