6W, Filterless, Spread-Spectrum
Mono/Stereo Class D Amplifiers
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
Output Power
POUT
THD+N = 10%,
f = 1kHz
RL = 16Ω
RL = 8Ω
8
W
6
Total Harmonic Distortion Plus
Noise
THD+N
fIN = 1kHz, either FFM or SSM, RL = 8Ω,
POUT = 4W
0.07
%
Signal-to-Noise Ratio
SNR
RL = 8Ω, POUT =
4W, f = 1kHz
BW = 22Hz to
22kHz
A-weighted
FFM
SSM
FFM
SSM
94
88
dB
97
91
FS1 = L, FS2 = L
300
335
370
Oscillator Frequency
fOSC
FS1 = L, FS2 = H
FS1 = H, FS2 = L
460
kHz
236
FS1 = H, FS2 = H (spread-spectrum mode)
335
Efficiency
η
DIGITAL INPUTS (SHDN, FS_, G_)
POUT = 5W, fIN = 1kHz, RL = 16Ω
POUT = 4W, f = 1kHz, RL = 8Ω
85
%
75
Input Thresholds
VIH
VIL
Input Leakage Current
2.5
V
0.8
±1
µA
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.
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