NJU8713
2V Operation Switching Driver for Class D Amplifier
GENERAL DESCRIPTION
The
NJU8713
is a Switching Driver for a class D
Amplifier including Separated Power Source terminals
between Input and Output, BEEP and BPZ (Bipolar Zero)
output circuits. It converts 1bit digital signal input, such
as PWM or PDM signal, to an analog signal output through
a simple external LC low-pass filter.
The
NJU8713
realizes very high power-efficiency
because of the class D operation. Therefore, it is suitable
for portable audio set and others.
PACKAGE OUTLINE
NJU8713V
FEATURES
2-channel 1bit Audio Signal Input
Standby(Hi-Z), BPZ Control
Internal BPZ Charger
Beep Function
Operating Voltage
: 1.7V to 2.7V
Driving Voltage
: 1.7V to V
DD
CMOS Technology
Package Outline
: SSOP14
PIN CONFIGURATION
MCK
V
SS
IN
1
EN
1
V
SSO
OUT
1
V
DDO
1
2
3
4
5
6
7
14
13
12
11
10
9
8
BEEP
V
DD
IN
2
EN
2
V
SSO
OUT
2
V
DDO
BLOCK DIAGRAM
V
DD
V
SS
BPZ Output
V
DDO
V
SSO
IN
1
OUT
1
BEEP
IN
2
Output Control
BPZ Output
OUT
2
MCK
EN
1
EN
2
Ver.2004-06-02
-1-