Datasheet

MAX98357A/MAX98357B
PCM Input Class D Audio Power Amplifiers
30Maxim Integrated
Figure 17. Right-Channel PCM Operation with 6dB Gain
Figure 18. (Left/2 + Right/2) PCM Operation with 6dB Gain
OUTP
OUTN
GAIN_SLOT
V
DD
2.5V TO 5.5V
0.1µF10µF
SD_MODE
BCLK
LRCLK
R
SMALL
(69.8kI)**
DIN
GND
*RESPONDS TO RIGHT CHANNEL WHEN GPIO IS HIGH.
**69.8kI ASSUMES V
GPIO
= 1.8V.
THE MAX98357A/B ARE SHUT DOWN WHEN GPIO IS LOW.
MAX98357A
MAX98357B
GPIO*
CODEC
BIT CLOCK
FRAME CLOCK
DATA OUT
B2 A2
A1
C1
C3
B1
C2
B3
A3
OUTP
OUTN
GAIN_SLOT
V
DD
2.5V TO 5.5V
0.1µF10µF
SD_MODE
BCLK
LRCLK
R
LARGE
(300kI)**
DIN
GND
*LEFT AND RIGHT CHANNELS SUMMED WHEN GPIO IS HIGH.
**300kI ASSUMES V
GPIO
= 1.8V.
THE MAX98357A/B ARE SHUT DOWN WHEN GPIO IS LOW.
MAX98357A
MAX98357B
GPIO*
CODEC
BIT CLOCK
FRAME CLOCK
DATA OUT
B2 A2
A1
C1
C3
B1
C2
B3
A3