NCP2815

http://onsemi.com

4

+

−

+

−

SGND

OUTL

OUTR

CLICK / POP

SUPPRESSION

BIASING

SD

PGND

PVM

CPP

CPM

VRM

VRP

VP

1

mF

1

mF

1

mF

VRP

VRP

VRM

VRM

Left

Audio

Right

Audio

VP

INL

INR

POWER MANAGEMENT

HiZ

Figure 3. Typical Application Schematic Version B

PIN FUNCTION DESCRIPTION

Pin

Pin

Name

Type

Description

A1

CPM

Input /

Output

Charge pump flying capacitor negative terminal. A 1 mF ceramic filtering capacitor to CPP is re-

quired

A2

PVM

Output

Charge pump output. A 1 mF ceramic filtering capacitor to ground is required

A3

INL

Input

Left input of the audio source

A4

INR

Input

Right input of the audio source

B1

PGND

Ground

Power ground

B2

/SD

Input

Enable activation.

B4

SGND

Ground

Sense Ground. Connect to shield terminal of headphone jack or ground plane.

C1

CPP

Input /

Output

Charge pump flying capacitor positive terminal. A 1 mF ceramic filtering capacitor to CPM is re-

quired.

C2

VP

Power

Positive supply voltage, connected to a Lithium/Ion battery or other power supply.

C3

OUTL

Output

Left audio channel output signal

C4

OUTR

Output

Right audio channel output signal

B3

HiZ

Input

Output high impedance mode activation.