MAX9726 Maxim Integrated Products, MAX9726 Datasheet - Page 3

• Manufacturer Part Number: MAX9726
• Description: Headphone Amplifier
• Manufacturer: Maxim Integrated Products

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4
ELECTRICAL CHARACTERISTICS (5V Supply) (continued)
(V
ume (overall gain = 0dB), BassMax disabled. Load connected between OUT_ and PGND where specified. T
otherwise noted. Typical values are at T
ELECTRICAL CHARACTERISTICS (3.3V Supply)
(V
volume (overall gain = 0dB), BassMax disabled. Load connected between OUT_ and PGND where specified. T
unless otherwise noted. Typical values are at T
Output Power
Total Harmonic Distortion Plus
Noise
Signal-to-Noise Ratio
Slew Rate
Capacitive Drive
Output Resistance in Shutdown
Click-and-Pop Level
Charge-Pump Switching
Frequency
Crosstalk
VOLUME CONTROL
Attenuator Step Accuracy
DIGITAL INPUTS (SHDN, SDA, SCL)
Input High Voltage
Input Low Voltage
Input Leakage Current
DIGITAL OUTPUTS (SDA)
Output Low Voltage
Output High Current
DD
DD
= SHDN = 5V, PGND = SGND = 0V, C1 = C2 = 1µF, C
= SHDN = 3.3V, PGND = SGND = 0V, C1 = C2 = 1µF, C
PARAMETER
PARAMETER
_______________________________________________________________________________________
BassMax, I
DirectDrive, Headphone Amplifier with
R
SYMBOL
SYMBOL
THD+N
OUT_SHDN
P
A
SNR
OUT
K
V
I
f
V
V
SR
= +25°C.) (Note 1)
OH
CP
CP
OL
IH
IL
A
= +25°C.) (Note 1)
THD+N = 1%,
f
R
R
R
V
1.77V
No sustained oscillations
V
SGND
Peak voltage, A-weighted,
32 samples per second
(Notes 2, 4)
L to R, or R to L, f = 10kHz,
V
loaded
0 to 64dB
68dB to 96dB
100dB to 120dB
I
V
IN
OL
L
L
OUT
SHDN
OUT
SDA
L
= 1kHz
= 16Ω, P
= 32Ω, P
2
= 32Ω,
= 3mA
RMS
= V
=
= 1V
C, Volume and Gain Control
= 0V, measured from OUT_ to
DD
PREG
P-P
OUT
OUT
PREG
, R
CONDITIONS
CONDITIONS
= C
= 15mW, f
= 30mW, f
L
BW = 22Hz to 22kHz
A-weighted
= 32Ω, both channels
= C
NREG
R
R
L
L
NREG
= 16Ω
= 32Ω
= 1µF, BM_ = 0V, R
IN
IN
= 1kHz
= 1kHz
= 1µF, BM_ = 0V, R
Into
shutdown
Out of
shutdown
IN
0.7 x
MIN
V
MIN
515
= 10kΩ, R
DD
IN
= 10kΩ, R
±0.1
±0.5
TYP
0.05
0.03
TYP
102
105
200
610
±2
80
70
50
59
61
85
1
A
F
= T
= 10kΩ, maximum vol-
F
MIN
= 10kΩ, maximum
A
MAX
MAX
0.3 x
V
0.06
705
±1
= T
DD
to T
1
MIN
MAX
UNITS
UNITS
to T
, unless
V/µs
dBV
mW
kHz
dB
pF
kΩ
dB
dB
µA
µA
%
V
V
V
MAX
3
,