SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL
GENERAL DESCRIPTION
The SM7513 is a stereo audio power amplifier that
drives 3 W/channel of continuous RMS power into
a 3-Ω load. Advanced up/down volume control
minimizes external components and allows BTL
(speaker) volume control and SE (earphone)
volume control. Wireless headphone benefit from
the integrated feature set that minimizes external
components without sacrificing functionality.
To simplify design, the speaker volume level is
adjusted by applying a up/down gain control to the
up/down terminals.
FEATURES
* Advanced DC Volume Control With 2-dB Steps
From -40 dB to 20 dB
* Depop circuitry
* Low quiescent current
* 1uA shutdown current
* 3W into 3Ω from 5.5V supply
* Thermal protection
* Compact configuration and minimum external
components
APPLICATIONS
* Mini Speaker
* Wireless headphone
* Car multimedia system
PIN ASSIGNMENTS (TOP VIEW)
ROUTN
RPVDD
RLINEIN
VDD
LLINEIN
LPVDD
LOUTN
LPGND
1
2
3
4
5
6
7
8
Thermal
Pad
16
15
14
13
12
11
10
9
RPGND
ROUTP
SE/BTL
UP
DOWN
BYPASS
SHUTDOWN
LOUTP
SM7513
16PIN
Page 1
V.1.0 Apr 30,2007
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
