MAX9729 Maxim Integrated Products, MAX9729 Datasheet - Page 3

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

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
Power-Supply Rejection Ratio
Output Power
Total Harmonic Distortion Plus
Noise
Maximum Gain
Beep Input Attenuation
Signal-to-Noise Ratio
Slew Rate
Capacitive Drive
Output Resistance in Shutdown
DD
= PV
DD
Stereo Headphone Amplifier with BassMax,
PARAMETER
= SHDN = 3V, PGND = SGND = 0V, C1 = C2 = C3 = 1µF, BM_ = 0V, maximum gain setting = 6dB, volume attenuation
_______________________________________________________________________________________
A
R
= T
SYMBOL
OUT_SHDN
A
THD+N
A
PSRR
P
V_BEEP
MIN
SNR
VMAX
SR
OUT
to T
Volume Control, and Input Mux
MAX
(Note 3)
THD+N = 1%,
f
gain = 1.8dB,
T
f
gain = 3.5dB
(Note 4)
Register 0x01, B[2:0] = 000
Register 0x01, B[2:0] = 001
Register 0x01, B[2:0] = 010
Register 0x01, B[2:0] = 011
Register 0x01, B[2:0] = 100
Register 0x01, B[2:0] = 101
Register 0x01, B[2:0] = 110
Register 0x01, B[2:0] = 111
Register 0x01, B[7:5] = 000
Register 0x01, B[7:5] = 001
Register 0x01, B[7:5] = 010
Register 0x01, B[7:5] = 011
Register 0x01, B[7:5] = 100
Register 0x01, B[7:5] = 101
Register 0x01, B[7:5] = 110
Register 0x01, B[7:5] = 111
R
V
No sustained oscillations
V
SGND
IN
IN
A
OUT
SHDN
L
, unless otherwise noted. Typical values are at T
= 1kHz, overall
= +25°C (Note 4)
= 1kHz, overall
= 32Ω,
= 1V
= 0V, measured from OUT_ to
RMS
CONDITIONS
V
gain = 6dB
f = 217Hz, 100mV
ripple, overall gain = 26dB
f = 1kHz, 100mV
overall gain = 26dB
f = 20kHz, 100mV
ripple, overall gain = 26dB
DD
BW = 22Hz to 22kHz
BW = 22Hz to 22kHz
and A-weighted
= 1.8V to 3.6V, overall
R
R
R
P
R
P
OU T
OU T
L
L
L
L
= 16Ω
= 32Ω
= 16Ω ,
= 32Ω ,
P-P
= 42m W
= 40m W
P-P
P-P
ripple,
MIN
72
12
21
A
= +25°C.) (Note 1)
TYP
0.04
0.04
19.5
101
200
3.5
0.5
95
90
82
58
49
52
10
22
24
26
10
20
30
40
50
52
54
56
99
20
6
8
MAX
UNITS
V/µs
mW
dB
dB
dB
dB
kΩ
pF
%
3