Datasheet

(V
DD
= 15V, AGND = PGND = 0V, SHDN ≥ V
IH
, A
V
= 16dB, C
SS
= C
IN
= 0.47μF, C
REG
= 0.01μF, C1 = 100nF, C2 = 1μF, FS1 = FS2
= PGND (f
S
= 660kHz), R
L
connected between OUTL+ and OUTL- and OUTR+ and OUTR-, T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +25°C.) (Notes 1, 2)
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 R
L
= 8Ω, L = 68μH.
For R
L
= 4Ω, L = 33μH.
Note 3: PSRR is specified with the amplifier inputs connected to AGND through C
IN
.
Note 4: The MAX9704 continuous 8Ω and 16Ω power measurements account for thermal limitations of the 32-pin TQFN-EP pack-
age. Continuous 4Ω power measurements account for short-circuit protection of the MAX9703/MAX9704 devices.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Continuous Output Power
(MAX9703)
P
CONT
THD+N = 10%, V
DD
= 16V, f = 1kHz, T
A
=
+25°C, t
CONT
= 15min
(Note 4)
R
L
= 4Ω 10
WR
L
= 8Ω 15
R
L
= 16Ω, V
DD
= 24V 18
Continuous Output Power
(MAX9704)
P
CONT
THD+N = 10%, V
DD
= 16V, f = 1kHz, T
A
=
+25°C, t
CONT
= 15min
(Note 4)
R
L
= 4Ω 2x5
WR
L
= 8Ω 2x10
R
L
= 16Ω, V
DD
= 24V 2x16
Total Harmonic Distortion Plus
Noise
THD+N
f
IN
= 1kHz, either FFM or SSM, R
L
= 8Ω,
P
OUT
= 4W
0.07 %
Signal-to-Noise Ratio SNR
R
L
= 8Ω, P
OUT
=
10W, f = 1kHz
BW = 22Hz to
22kHz
FFM 94
dB
SSM 88
A-weighted
FFM 97
SSM 91
Crosstalk Left to right, right to left, 8Ω load, f
IN
= 10kHz 65 dB
Oscillator Frequency f
OSC
FS1 = L, FS2 = L 560 670 800
kHz
FS1 = L, FS2 = H 940
FS1 = H, FS2 = L 470
FS1 = H, FS2 = H (spread-spectrum mode)
670
±7%
Efciency η
P
OUT
= 15W, f = 1kHz, R
L
= 8Ω 78
%
P
OUT
= 10W, f = 1kHz, R
L
= 16Ω 88
Regulator Output V
REG
6 V
DIGITAL INPUTS (SHDN, FS_, G_)
Input Thresholds
V
IH
2.5
V
V
IL
0.8
Input Leakage Current ±1 µA
MAX9703/MAX9704 10W Stereo/15W Mono, Filterless,
Spread-Spectrum, Class D Ampliers
www.maximintegrated.com
Maxim Integrated │ 3
Electrical Characteristics (continued)