MAX9789 MAXIM [Maxim Integrated Products], MAX9789 Datasheet - Page 6

• Manufacturer Part Number: MAX9789
• Description: Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiers
• Manufacturer: MAXIM [Maxim Integrated Products]

Windows Vista-Compliant, Stereo Class AB Speaker
Amplifiers and DirectDrive Headphone Amplifiers
(V
∞, unless otherwise specified, GAIN1 = 0, GAIN2 = 1 (A
unless otherwise noted. Headphone mode: SPKR_EN = 1, HP_EN = 0. Speaker mode: SPKR_EN = 0, HP_EN = 1.)
6
0.001
DD
-100
-110
-100
0.01
-60
-70
-80
-90
-75
-80
-85
-90
-95
0.1
10
_______________________________________________________________________________________
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
= PV
vs. OUTPUT VOLTAGE (HEADPHONE MODE)
10
10
0
vs. FREQUENCY (HEADPHONE MODE)
HPV
R
FS = 0.707V
R
L
L
vs. FREQUENCY (SPEAKER MODE)
= 10kΩ
= 3Ω
DD
DD
= 3V
f
= CPV
IN
100
100
0.5
OUTPUT VOLTAGE (V
= 10kHz
f
RMS
IN
FREQUENCY (Hz)
FREQUENCY (Hz)
= 20Hz
V
DD
OUT
1.0
1k
1k
= HPV
= -3dB FS
FS = 0.707V
V
R
RMS
OUT
L
DD
= 10kΩ
f
10k
IN
10k
1.5
)
= -3dB FS
= 1kHz
= LDO_EN = +5V, V
RMS
100k
100k
2.0
-100
-100
-100
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
-75
-80
-85
-90
-95
0
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
10
vs. FREQUENCY (HEADPHONE MODE)
vs. FREQUENCY (HEADPHONE MODE)
FS = 0.707V
R
GND
vs. FREQUENCY (SPEAKER MODE)
L
LEFT TO RIGHT
= 4Ω
VSP
= V
100
100
100
= 10dB, A
RMS
PGND
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
CROSSTALK
V
OUT
= -3dB FS
= V
1k
1k
1k
VHP
Typical Operating Characteristics
CPGND
RIGHT TO LEFT
HPV
FS = 0.707V
V
R
FS = 0.707V
V
R
OUT
L
OUT
L
= 3.5dB), measurement BW = 20kHz AES17, T
= 10kΩ
= 10kΩ
10k
10k
10k
DD
= -3dB FS
= -20dB FS
= 3V
= V
RMS
RMS
LDO_SET
100k
100k
100k
= 0V, C1 = C2 = C
0.001
-100
-110
-120
-130
-140
-100
-105
-110
0.01
-10
-20
-30
-40
-50
-60
-70
-80
-90
-75
-80
-85
-90
-95
0.1
10
1
0
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT VOLTAGE (HEADPHONE MODE)
10
0
0
FS = 0.707V
R
R
vs. FREQUENCY (SPEAKER MODE)
L
L
HEADPHONE OUTPUT SPECTRUM
f
IN
= 8Ω
= 10kΩ
= 10kHz
f
IN
100
0.5
5k
OUTPUT VOLTAGE (V
= 20Hz
RMS
FREQUENCY (Hz)
FREQUENCY (Hz)
V
BIAS
OUT
10k
1.0
= -3dB FS
1k
= C
FS = 0.300V
V
R
IN
RMS
OUT
L
= 10kΩ
1.5
15k
10k
= 1µF. R
f
)
A
IN
= -60dB FS
= 1kHz
= +25°C,
RMS
100k
20k
2.0
L
=