MAX9729 Maxim Integrated Products, MAX9729 Datasheet - Page 4

• Manufacturer Part Number: MAX9729
• Description: Stereo Headphone Amplifier
• Manufacturer: Maxim Integrated Products

Stereo Headphone Amplifier with BassMax,
Volume Control, and Input Mux
ELECTRICAL CHARACTERISTICS (3V Supply) (continued)
(V
setting = -16dB (overall gain = -10dB), BassMax disabled. Load connected between OUT_ and PGND where specified. THD+N
measurement BW = 22Hz to 22kHz. T
ELECTRICAL CHARACTERISTICS (2.4V Supply)
(V
setting = -16dB (overall gain = -10dB), BassMax disabled. Load connected between OUT_ and PGND where specified. THD+N
measurement BW = 22Hz to 22kHz. T
4
Quiescent Current
Shutdown Current
Output Power
Total Harmonic Distortion Plus
Noise
Power-Supply Rejection Ratio
Click-and-Pop Level
Charge-Pump Switching Frequency
Crosstalk
DIGITAL INPUTS (SHDN, SDA, SCL, BEEP_EN)
Input High Voltage
Input Low Voltage
Input Leakage Current
DIGITAL OUTPUTS (SDA)
Output Low Voltage
Output High Current
DD
DD
_______________________________________________________________________________________
= PV
= PV
DD
DD
PARAMETER
PARAMETER
= SHDN = 2.4V, PGND = SGND = 0V, C1 = C2 = C3 = 1µF, BM_ = 0V, maximum gain setting = 6dB, volume attenuation
= SHDN = 3V, PGND = SGND = 0V, C1 = C2 = C3 = 1µF, BM_ = 0V, maximum gain setting = 6dB, volume attenuation
A
A
= T
= T
SYMBOL
SYMBOL
THD+N
I
PSRR
P
MIN
MIN
SHDN
K
V
I
f
V
I
V
OUT
OH
DD
CP
CP
OL
IH
IL
to T
to T
MAX
MAX
No load (Note 3)
V
THD+N = 1%,
f
gain = 3.5dB,
T
(Note 4)
f
gain = 3.5dB
(Note 4)
100mV
(Note 3)
Peak voltage, A-
weighted, 32 samples
per second
(Notes 3 and 5)
L to R, or R to L, f = 10kHz, V
1V
I
V
IN
IN
OL
A
SDA
SHDN
, unless otherwise noted. Typical values are at T
, unless otherwise noted. Typical values are at T
RMS
= 1kHz, overall
= +25°C
= 1kHz, overall
= 3mA
= V
, R
P-P
= 0V
DD
L
ripple
= 32Ω, both channels loaded
CONDITIONS
CONDITIONS
R
R
R
P
R
P
f = 217Hz
f = 1kHz
f = 10kHz
L
L
L
OU T
L
OU T
= 16Ω
= 32Ω
= 16Ω ,
= 32Ω ,
Into shutdown
Out of shutdown
= 23m W
= 23m W
OUT
=
MIN
MIN
505
1.4
-1
A
A
= +25°C.) (Note 1)
= +25°C.) (Note 1)
TYP
TYP
0.03
0.03
600
4.5
90
85
61
81
80
78
32
32
4
MAX
MAX
730
0.4
0.4
+1
1
UNITS
UNITS
dBV
kHz
mW
mA
dB
µA
dB
µA
µA
%
V
V
V