MAX9792 MAXIM [Maxim Integrated Products], MAX9792 Datasheet - Page 12

• Manufacturer Part Number: MAX9792
• Description: Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers
• Manufacturer: MAXIM [Maxim Integrated Products]

Windows Vista-Compliant Class D Speaker
Amplifiers with DirectDrive Headphone Amplifiers
(V
erwise specified. R
= 20kHz AES17, T
HP_EN = 1.)
12
0.0001
0.001
AVDD
-100
-110
0.01
100
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.1
10
1
0
______________________________________________________________________________________
0.01
vs. OUTPUT POWER (HEADPHONE MODE)
0
TOTAL HARMONIC DISTORTION + NOISE
TOTAL HARMONIC DISTORTION + NOISE
= V
vs. FREQUENCY (HEADPHONE MODE)
V
R
R
V
HPVDD
L
L
IN
= 10kΩ
= 10kΩ
f = 6kHz
= -3dBFS
FS = 707mV
PVDD
0.5
= 3V
0.1
OUTPUT POWER (mW)
1.0
f = 1kHz
= V
FREQUENCY (kHz)
A
RMS
IN1
= +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, HP_EN = 0. Headphone mode: SPKR_EN = 1,
HPVDD
f = 100Hz
1.5
= 20kΩ (A
1
FS = 1V
= 5V, V
2.0
10
RMS
VSPKR
2.5
GND
100
3.0
= 12dB), R
= V
PGND
-100
-110
-100
-110
-120
-10
-20
-30
-40
-50
-60
-70
-80
-90
-20
-30
-40
-50
-60
-70
-80
-90
Typical Operating Characteristics (continued)
= V
0
IN2
0.01
0.01
TOTAL HARMONIC DISTORTION + NOISE
CPGND
vs. FREQUENCY (HEADPHONE MODE)
V
R
V
= 40.2kΩ (A
HPVDD
L
IN
= 10kΩ
= -3dBFS
FS = 707mV
CROSSTALK vs. FREQUENCY
RIGHT TO LEFT
COM AND SENSE
= 3V
0.1
LINE OUT
0.1
(HEADPHONE MODE)
= 0, I
FREQUENCY (kHz)
FREQUENCY (kHz)
RMS
LDO_OUT
VHP
LEFT TO RIGHT
COM AND SENSE
1
1
= 0dB), C
FS = 1V
R
FS = 707mV
V
L
IN
= 0, C
= 10kΩ
10
= -20dBFS
10
RMS
IN1
LDO
RMS
100
100
= 470nF, C
= 2 x 1µF, C1 = C2 = 1µF. R
0.0001
0.001
-100
-120
-140
0.01
100
-20
-40
-60
-80
0.1
10
1
0
IN2
vs. OUTPUT POWER (HEADPHONE MODE)
0
TOTAL HARMONIC DISTORTION + NOISE
0
RIGHT AND LEFT
R
FS = 300mV
V
R
= C
L
IN
L
OUTPUT FREQUENCY SPECTRUM
0.5
= 10kΩ
= 10kΩ
= -60dBFS
COM
1.0
(HEADPHONE MODE)
5
f = 6kHz
OUTPUT POWER (mW)
RMS
FREQUENCY (kHz)
= 1µF, measurement BW
f = 1kHz
1.5
2.0
10
L
= ∞, unless oth-
2.5
f = 100Hz
3.0
15
3.5
4.0
20