PAM8124 Datasheet, PDF (1/15 Pages) Diodes Incorporated – HIGH POWER AUDIO

A Product Line of
Diodes Incorporated
PAM8124
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:
ƒ 2-Ch Single-Ended (SE, Half-Bridge)
ƒ 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 1
SDN 2
PVCCL ³
MUTE ⁴
LIN 5
RIN 6
VCM ⁷
AGND 8
AGND 9
PVCCR 10
VCLAMP 11
PVCCR 12
Applications
• Televisions
• Home Sound Systems
• Active Speakers
24 PGNDL
23 PGNDL
22 LOUT
21 BSL
20 _AVCC
19 _{SE_BTL}
18 _GAIN0
17 GAIN1
16 _BSR
15 ROUT
14 PGNDR
13 PGNDR
Typical Applications Circuit
10V_to_26V
SD
Mute
L_in
R_in
C1
1uF
C3
1uF
10V_to_26V
U1
1 _PVCCL
2 _SDN
3 _PVCCL
4 _MUTE
5 _LIN
6 _RIN
7 _VCM
8 _AGND
9 _AGND
10 _PVCCR
11 _VCLAMP
12 _PVCCR
PGNDL
PGNDL
LOUT
BSL
AVCC
SE_BTL
GAIN0
GAIN1
BSR
ROUT
PGNDR
PGNDR
24
23
22
L1
33uH
21
C2 1uF
20
10V_to_26V
19
SE_BTL
18
G0
17
G1
16 C4 1uF
15
L2
14
33uH
13
C5
R1
220nF 4.7K C7
470uF
L_out1
8ohm
C8
470uF
C6
R2
220nF 4.7K
8ohm
R_out1
PAM8124
Document number: DS36627 Rev. 1 - 2
1 of 15
www.diodes.com
October 2013
© Diodes Incorporated