Datasheet

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MAX98307/MAX98308
3.3W Mono Class DG Multilevel Audio Amplifier
Pin/Bump Description
Pin/Bump Configurations
PIN BUMP
NAME FUNCTION
MAX98307 MAX98308
1 B2 SHDN
Active-Low Shutdown. Connect to GND for shutdown. Connect to PVDD for normal
operation.
2 A2 GND Substrate and Signal Ground
3 A3 PVDD Power and Charge-Pump Supply. Bypass to PGND with a 0.1FF capacitor.
4 A4 OUT+ Positive Amplifier Output
5 B4 OUT- Negative Amplifier Output
6 C4 PGND Power Ground
7 — SVSS Amplifier Negative Power Supply. Connect to PVSS (MAX98307).
8 — N.C. No Connection. Not internally connected. Connect to GND or leave unconnected.
9 — FB- Negative Amplifier Feedback
10 C3 IN- Negative Amplifier Input
11 C2 IN+ Positive Amplifier Input
12 — FB+ Positive Amplifier Feedback
— B3 GAIN See Table 1 MAX98308 Gain Configuration for more information.
13 — V
CC
Signal Supply
14 C1 PVSS Charge-Pump Output. Connect a 10FF capacitor between PVSS and PGND.
15 B1 C1N
Charge-Pump Flying Capacitor Negative Terminal. Connect a 4.7FF capacitor
between C1N and C1P.
16 A1 C1P
Charge-Pump Flying Capacitor Positive Terminal. Connect a 4.7FF capacitor
between C1N and C1P.
— — EP
Exposed Pad (TQFN Only). Internally connected to GND. Connect to a large ground
plane with multiple vias to maximize thermal performance. Not intended as an
electrical connection point.
15
16
14
13
6
5
7
GND
OUT+
8
IN+ FB- FB+
12
PVSS
4
12 11 9
C1N
C1P
EP
N.C.
SVSS
PGND
OUT-
+
PVDD IN-
3
10
V
CC
TQFN
MAX98307
TOP VIEW TOP VIEW
(BUMPS SIDE DOWN)
WLP
PGNDPVSS
OUT-C1N
MAX98308
+
1 2 34
A
IN+IN-
GAIN
B
C
SHDN
SHDN
OUT+C1P GND PVDD