Rainbow Electronics MAX9796 - Manual (Page 4)

MAX9796
2.3W, High-Power Class D Audio Subsystem
with DirectDrive Headphone Amplifiers
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V DD = PV DD = CPV DD = 3.3V, GND = PGND = CPGND = 0V, SHDN = V DD , I 2 C settings (INA gain = +20dB, INB gain = INC gain =
0dB, volume setting = 0dB, mono path gain = 0dB, SHDN = 1, SSM = 1). Speaker load resistors (R LSP ) are terminated between
OUT+ and OUT-, headphone load resistors are terminated to GND, unless otherwise noted. C1 = C2 = C3 = 1µF. T A = T MIN to T MAX ,
unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RECEIVER AMPLIFIER
Output Offset Voltage V OS T A = +25°C ±1.8 mV
Into shutdown -62
Into mute -67
Out of shutdown -63
Click-and-Pop Level K CP
Peak voltage, T A =
+25°C, A-weighted,
32 samples per
second (Notes 3, 5)
Out of mute -66
dB
V DD = 2.7V to 5.5V 58 80
f = 217Hz, 100mV P-P
ripple
80
f = 1kHz, 100mV P-P
ripple
70
Power-Supply Rejection Ratio
(Note 3)
PSRR T A = +25°C
f = 20kHz, 100mV P-P
ripple
62
dB
R L = 16 Ω 60
Output Power P OUT
T A = +25°C,
THD+N = 1% R L = 32 Ω 50
mW
Gain A V 3 dB
R L = 16 Ω (V
OUT = 800mV RMS , f = 1kHz) 0.03 Total Harmonic Distortion Plus
Noise
THD+N
R L = 32 Ω (V
OUT = 800mV RMS , f = 1kHz) 0.024
%
BW = 20Hz to 20kHz 87
Signal-to-Noise Ratio SNR
R L = 16 Ω, V
OUT =
800mV RMS (Note 3) A-weighted 89
dB
Slew Rate SR 0.3 V/µs
Capacitive Drive C L 300 pF
HEADPHONE AMPLIFIERS
Output Offset Voltage V OS T A = +25°C ±1.8 mV
Into shutdown -61
Into mute -65
Out of shutdown -60
Click-and-Pop Level K CP
Peak voltage, T A =
+25°C, A-weighted,
32 samples per
second (Notes 2, 5)
Out of mute -64
dB
Contact ±4
ESD Protection HP_
Air ±8
kV
V DD = 2.7V to 5.5V 58 80
f = 217Hz, 100mV P-P
ripple
80
f = 1kHz, 100mV P-P
ripple
70
Power-Supply Rejection Ratio
(Note 3)
PSRR T A = +25°C
f = 20kHz, 100mV P-P
ripple
62
dB