Diodes PAM8124 User Manual
Pam8124 new prod uc t, Description, Features
PAM8124
Document number: DS36627 Rev. 1 - 2
1 of 15
October 2013
© Diodes Incorporated
PAM8124
NEW PROD
UC
T
A Product Line of
Diodes Incorporated
HIGH POWER AUDIO
Description
The PAM8124 is a 15W efficient, Class-D audio power amplifier for
driving stereo speakers in a single-ended configuration; or a mono
speaker in a bridge-tied-load configuration. The PAM8124 can drive
stereo speakers (SE) as low as 4Ω. Due to the low power dissipation
and high efficiency, up to 95%, the device can be used without any
external heat sink when playing music.
The gain of the amplifier is controlled by 2 gain selectable pins,
offering 20dB, 26dB, 32dB, and 36dB gain selections.
The PAM8124 is available in a TSSOP-24-EP package.
Features
•
30W/Ch into 8Ω BTL Load from 22V Supply
•
15W/Ch into 4Ω SE Load from 22V Supply
•
10W/Ch into 8Ω SE Load from 24V Supply
•
Operate from 10V to 26V
•
Single-Ended Analog Inputs
•
Supports Multiple Output Configurations:
2-Ch Single-Ended (SE, Half-Bridge)
1-Ch Bridge-Tied Load (BTL, Full-Bridge)
•
Four Selectable Fixed-gain Settings
•
No Pop Noise for Start-up and Shut-down Sequences
•
Internal Oscillator (No External Components Required)
•
High Efficient Class-D Operation Eliminates Need for Heat Sinks
•
Thermal and Short-Circuit Protection with Auto Recovery
•
Space-Saving Surface-Mount TSSOP-24EP Package
• Pb-Free
Package
Pin Assignments
TSSOP-24-EP
PVCCL
SDN
PVCCL
MUTE
LIN
VCM
AGND
AGND
PVCCR
VCLAMP
PVCCR
PGNDR
PGNDR
ROUT
BSR
GAIN1
GAIN0
AVCC
BSL
LOUT
PGNDL
PGNDL
PAM
8
1
2
4
XX
XY
W
W
L
L
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
RIN
SE_BTL
Applications
• Televisions
•
Home Sound Systems
• Active
Speakers
Typical Applications Circuit
PVCCL
1
SDN
2
PVCCL
3
MUTE
4
LIN
5
RIN
6
VCM
7
AGND
8
AGND
9
PVCCR
10
VCLAMP
11
PVCCR
12
PGNDR
13
PGNDR
14
ROUT
15
BSR
16
GAIN1
17
GAIN0
18
SE_BTL
19
AVCC
20
BSL
21
LOUT
22
PGNDL
23
PGNDL
24
U1
SD
Mute
C1
1uF
C3
1uF
C5
220nF
L1
33uH
G0
C2
1uF
G1
R1
4.7K
C7
470uF
L_out1
8ohm
C6
220nF
L2
33uH
C4
1uF
R2
4.7K
C8
470uF
R_out1
8ohm
L_in
R_in
PA
M
81
24
10V_to_26V
10V_to_26V
SE_BTL
10V_to_26V