MAX9779 Maxim Integrated Products, MAX9779 Datasheet - Page 3
MAX9779
Manufacturer Part Number
MAX9779
Description
2.6W Stereo Audio Power Amplifier and DirectDrive Headphone Amplifier
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX9779.pdf
(19 pages)
www.datasheet4u.com
ELECTRICAL CHARACTERISTICS (continued)
(V
terminated between OUT_+ and OUT_-, headphone load terminated between HPOUT_ and GND, GAIN1 = GAIN2 = 0V, T
T
Output Power (Note 4)
Total Harmonic Distortion
Plus Noise
Signal-to-Noise Ratio
Noise
Capacitive-Load Drive
Crosstalk
Slew Rate
Gain (Maximum Volume Setting)
HEADPHONE AMPLIFIER (HPS = V
Output Offset Voltage
Power-Supply Rejection Ratio
(Note 3)
Output Power
Total Harmonic Distortion
Plus Noise
Signal-to-Noise Ratio
Noise
Capacitive-Load Drive
Crosstalk
Off-Isolation
Slew Rate
ESD
Gain
MAX
DD
, unless otherwise noted. Typical values are at T
= PV
PARAMETER
DD
= CPV
DD
_______________________________________________________________________________________
2.6W Stereo Audio Power Amplifier and
= HPV
DD
= 5V, GND = PGND = CPGND = 0V, SHDN = V
A
SYMBOL
V M AX ( S P KR)
DD
THD+N
THD+N
PSRR
P
P
SNR
SNR
V
ESD
)
SR
SR
OUT
C
OUT
C
A
V
V
OS
DirectDrive Headphone Amplifier
n
n
L
L
V
THD+N = 1%,
f = 1kHz,
T
R
R
R
BW = 22Hz to 22kHz
BW = 22Hz to 22kHz, A-weighted
No sustained oscillations
L to R, R to L, f = 10kHz
GAIN1 = 0, GAIN2 = 0
GAIN1 = 1, GAIN2 = 0
GAIN1 = 0, GAIN2 = 1
GAIN1 = 1, GAIN2 = 1
T
HPV
f = 1kHz, V
f = 10kHz, V
THD+N = 1%,
f = 1kHz, T
R
R
R
BW = 22Hz to 22kHz
BW = 22Hz to 22kHz
No sustained oscillations
L to R, R to L, f = 10kHz
Any unselected input to any active input,
f = 10kHz, input referred
IEC air discharge
GAIN2 = 0, GAIN1 = X
GAIN2 = 1, GAIN1 = X
A
A
L
L
L
L
L
L
A
= +25°C
= 8Ω, P
= 4Ω, P
= 8Ω, P
= +25°C
= 32Ω, P
= 16Ω, P
= 32Ω, P
DD
= +25°C.) (Note 1)
= 3V to 5.5V, T
OUT
OUT
OUT
A
RIPPLE
OUT
OUT
OUT
RIPPLE
= +25°C
CONDITIONS
= 500mW, f = 1kHz
= 1W, f = 1kHz
= 500mW,
= 20mW, f = 1kHz
= 75mW, f = 1kHz
= 50mW,
R
R
R
= 200mV
L
L
L
= 200mV
= 8Ω
= 4Ω
= 3Ω
A
= +25°C
P-P
P-P
R
R
L
L
= 32Ω
= 16Ω
DD
, C
BIAS
= 1µF, C1 = C2 = 1µF, speaker load
MIN
0.9
60
40
0.007
TYP
0.01
0.02
16.5
19.5
0.03
200
110
200
1.4
2.3
2.6
1.4
0.4
90
80
75
15
18
±2
75
73
63
50
95
12
88
74
±8
0
3
MAX
±7
A
= T
UNITS
µV
µV
V/µs
V/µs
mW
mV
dB
dB
dB
dB
dB
dB
dB
pF
pF
MIN
kV
W
%
%
RMS
RMS
to
3