NJU8710
PRELIMINARY
2V Operation Clock-less Switching Driver for Class D Amplifier
GENERAL DESCRIPTION
The
NJU8710
is a 2V operation clock-less switching
driver for a class D Amplifier with separated power supply
between Input and Output.
The
NJU8710
provides powerful drivability in both of
sink and source without flow-through current. Therefore, it
can be used to the buffer or the switch as a driver IC.
Furthermore it converts 1bit digital signal input, such as
PWM or PDM signal, to analog signal output of the hi-fi
audio level through a simple external LC low-pass filter.
The
NJU8710
realizes very high power-efficiency
because of the class D operation and low voltage
operation. Therefore, it is suitable for battery powered
applications and others.
PACKAGE OUTLINE
NJU8710R
FEATURES
2-channel 1bit Digital Signal Input
Standby(Hi-Z) Control function
Operating Voltage
: 1.7V to 2.7V
Driving Voltage
: 1.7V to V
DD
CMOS Technology
Package Outline
: VSP10
PIN CONFIGURATION
STBYB
IN
1
V
SS
OUTX
1
V
DDO
1
2
3
4
5
10
9
8
7
6
V
DD
IN
2
V
SS
OUTX
2
V
DDO
BLOCK DIAGRAM
V
DD
V
DDO
V
SS
IN
1
Dead Time
OUTX
1
IN
2
OUTX
2
STBY
V
DDO
V
SS
Ver.2004-06-02
-1-