8

TPA3251

SLASE40D – MAY 2015 – REVISED APRIL 2016

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Electrical Characteristics (continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

STATIC DIGITAL SPECIFICATIONS

High level input voltage

M1, M2, OSC_IOP, OSC_IOM, RESET

1.9

V

Low level input voltage

0.8

V

Input leakage current

100

μA

OTW/SHUTDOWN (FAULT)

Internal pullup resistance, CLIP_OTW to

DVDD, FAULT to DVDD

20

26

32

k

Ω

High level output voltage

Internal pullup resistor

3

3.3

3.6

V

Low level output voltage

200

500

mV

Device fanout

CLIP_OTW, FAULT

No external pullup

30

devices

(1)

SNR is calculated relative to 1% THD+N output level.

(2)

Actual system idle losses also are affected by core losses of output inductors.

7.6 Audio Characteristics (BTL)

PCB and system configuration are in accordance with recommended guidelines. Audio frequency = 1 kHz, PVDD_X = 36 V,

AES17 + AUX-0025 measurement filters,unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Power output per channel

220

W

175

175

140

THD+N

Total harmonic distortion + noise

1 W

0.005%

Output integrated noise

A-weighted, AES17 filter, Input Capacitor

Grounded

60

μV

Output offset voltage

Inputs AC coupled to GND

20

60

mV

SNR

111

dB

DNR

Dynamic range

115

dB

(2)

1

W