12W+12W, Low-EMI, Spread-Spectrum,

Stereo, Class D Amplifier

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3

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 18V, GND = PGND = 0V, SHDN

≥ VIH, AV = 16dB, CSS = CIN = 0.47µF, CREG = 0.01µF, C1 = 100nF, C2 = 1µF, FS1 = FS2 =

GND (fS = 670kHz), 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 = 8

Ω

12

VDD = 18V, THD+N =

10%, f = 1kHz

RL = 4

Ω

6.5

RL = 8

Ω

11

VDD = 24V, THD+N =

10%, f = 1kHz

RL = 4

Ω

5

RL = 8

Ω

8

Continuous Output Power

(Notes 4, 5)

PCONT

VDD = 12V, THD+N =

10%, f = 1kHz

RL = 4

Ω

8.5

W

Total Harmonic Distortion Plus

Noise

THD+N

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

Ω,

POUT = 4W

0.1

%

FFM

95.8

Unweighted

SSM

91.8

FFM

99.1

Signal-to-Noise Ratio

SNR

RL = 8

Ω,

POUT = 4W,

f = 1kHz

BW = 22Hz to 22kHz

A-weighted

SSM

95.7

dB

Crosstalk

Left to right, right to left, 8

Ω load, fIN = 10kHz

65

dB

FS1 = L, FS2 = L

560

670

800

FS1 = L, FS2 = H

930

FS1 = H, FS2 = L

470

Oscillator Frequency

fOSC

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

670

±7%

kHz

VDD = 12V, RL = 8

Ω, POUT = 8W

78

Efficiency (Note 4)

η

VDD = 18V, RL = 8

Ω, POUT = 10W

78

%

Regulator Output

VREG

6V

DIGITAL INPUTS (

SHDN, FS_, G_)

VIH

2.5

Input Thresholds

VIL

0.8

V

Input Leakage Current

±1µA

Note 2: All devices are 100% production tested at +25°C. All temperature limits are guaranteed by design.

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

Note 4: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For RL = 8

Ω, L = 68µH.

For RL = 12

Ω, L = 100µH. For RL = 16Ω, L = 120µH.

Note 5: Output power measured at TA = +25°C, with a soak time of 15 minutes.