6W, Filterless, Spread-Spectrum

Mono/Stereo Class D Amplifiers

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3

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 15V, GND = PGND = 0V, SHDN ≥ VIH, AV = 16dB, CSS = CIN = 0.47µF, CREG = 0.01µF, C1 = 100nF, C2 = 1µF, FS1 = FS2 =

GND (fS = 330kHz), RL connected between OUTL+ and OUTL- and OUTR+ and OUTR-, TA = TMIN to TMAX, unless otherwise noted.

Typical values are at TA = +25°C.) (Notes 1, 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RL = 16Ω

8

Output Power

POUT

THD+N = 10%,

f = 1kHz

RL = 8Ω

6

W

Total Harmonic Distortion Plus

Noise

THD+N

fIN = 1kHz, either FFM or SSM, RL = 8Ω,

POUT = 4W

0.07

%

FFM

94

BW = 22Hz to

22kHz

SSM

88

FFM

97

Signal-to-Noise Ratio

SNR

RL = 8Ω, POUT =

4W, f = 1kHz

A-weighted

SSM

91

dB

FS1 = L, FS2 = L

300

335

370

FS1 = L, FS2 = H

460

FS1 = H, FS2 = L

236

Oscillator Frequency

fOSC

FS1 = H, FS2 = H (spread-spectrum mode)

335

kHz

POUT = 5W, fIN = 1kHz, RL = 16Ω

85

Efficiency

η

POUT = 4W, f = 1kHz, RL = 8Ω

75

%

DIGITAL INPUTS (

SHDN, FS_, G_)

VIH

2.5

Input Thresholds

VIL

0.8

V

Input Leakage Current

±1µA

Note 1: All devices are 100% production tested at +25°C. All temperature limits are guaranteed by design.

Note 2: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For RL = 8Ω, L = 68µH.

For RL = 16Ω, L = 136µH.

Note 3: PSRR is specified with the amplifier inputs connected to GND through CIN.