NJU8719
PRELIMINARY
Monaural BTL Output Switching Driver for Class D Amplifier
!
GENERAL DESCRIPTION
The
NJU8719
is a monaural BTL output switching driver
for class D amplifier. It converts 1bit digital signal input,
such as PWM or PDM signal, to analog signal output with
simple external LC low-pass filter.
The
NJU8719
realizes very high power-efficiency by
class D operation. Therefore, It is suitable for portable
set with speaker.
NJU8719V
!
PACKAGE OUTLINE
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FEATURES
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1-channel 1bit Audio Signal Input
Monaural BTL Output
Standby(Hi-Z) Control Function
Operating Voltage : 2.4V to 5.25V
CMOS Technology
Package Outline
: SSOP10
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PIN CONFIGURATION
V
DD
IN
NC
MCK
STBYB
1
2
3
4
5
10
9
8
7
6
V
SS
OUT
P
V
DDO
OUT
N
V
SS
!
BLOCK DIAGRAM
V
DD
V
DDO
V
SS
IN
Dead Time
Generator
MCK
OUT
P
OUT
N
STBYB
V
SS
Ver.2004-05-20
-1-