Electrical characteristics (continued) – Rainbow Electronics MAX9704 User Manual
Page 3
MAX9703/MAX9704
15W, Filterless, Spread-Spectrum
Mono/Stereo Class D Amplifiers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 15V, GND = PGND = 0V, SHDN ≥ V
IH
, A
V
= 16dB, C
SS
= C
IN
= C
REG
= 0.47µF, C1 = 100nF, C2 = 1µF, FS1 = FS2 = GND
(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)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Total Harmonic Distortion Plus
Noise
THD+N
f
IN
= 1kHz, either FFM or SSM, R
L
= 8
Ω
,
P
OUT
= 4W
0.07
%
FFM
94
BW = 22Hz to
22kHz
SSM
88
FFM
97
Signal-to-Noise Ratio
SNR
R
L
= 8
Ω
, P
OUT
=
10W, f = 1kHz
A-weighted
SSM
91
dB
Crosstalk
Left to right, right to left, 8
Ω
load, f
IN
= 10kHz
65
dB
FS1 = L, FS2 = L
560
670
800
FS1 = L, FS2 = H
940
FS1 = H, FS2 = L
470
Oscillator Frequency
f
OSC
FS1 = H, FS2 = H (spread-spectrum mode)
670
±7%
kHz
Efficiency
η
P
OUT
= 15W, f = 1kHz, R
L
= 8
Ω
78
%
Regulator Output
V
REG
6
V
DIGITAL INPUTS (
SHDN
, FS_, G_)
(Note 4)
V
IH
2.5
Input Thresholds
V
IL
0.8
V
Input Leakage Current
±
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 R
L
= 8Ω, L = 68µH.
For R
L
= 4Ω, L = 33µH.
Note 3: PSRR is specified with the amplifier inputs connected to GND through C
IN
.
Note 4: Do not apply more than 8V to any logic pin.