Datasheet

Stereo, High-Power, Class D Amplifiers
MAX98400A/MAX98400B
13
Pin Descriptions (continued)
PIN
NAME FUNCTION
MAX98400A MAX98400B
11 8 INL+ Left-Channel Positive Analog Input
12 9 INL- Left-Channel Negative Analog Input
13 — MONO
Mono Operation. Connect MONO to GND for stereo operation. Connect MONO
to V
S
for mono operation.
14, 15 10 GND Analog Ground
16 11 INR- Right-Channel Negative Analog Input
17 12 INR+ Right-Channel Positive Analog Input
19 13 TEMPLOCK
See the Thermal Foldback section for details.
Connect to:
1) GND to disable thermal foldback.
2) Leave open to enable thermal foldback.
20 14 RELEASE
Sets the Limiter Time Constant. Connect to GND through 1FF.
21 15
SHDN
Active-Low Shutdown Input
Low = shutdown
High = enable
23, 24 16 OUTR+ Positive Right Speaker Output
26, 27 17, 18 OUTR- Negative Right Speaker Output
29, 30, 34, 35
19, 20,
23, 24
PGND Power Ground
31, 32, 33 21, 22 PVDD
Power Supply. Bypass PVDD to PGND with 1FF and 200FF capacitors.
— — EP Exposed Pad. Connect to PGND for optimum thermal performance.