Monaural BTL Output Clock-less Switching Driver
NJU8789
Monaural BTL Output Clock-less Switching Driver for Class D Amplifier
GENERAL DESCRIPTION
The NJU8789 is a mona...
Description
NJU8789
Monaural BTL Output Clock-less Switching Driver for Class D Amplifier
GENERAL DESCRIPTION
The NJU8789 is a monaural BTL output switching driver for class D amplifier including Separated Power Source terminals between Input and Output. It converts 1bit digital signal input, such as PWM or PDM signal.
The NJU8789 realizes very high power-efficiency by class D operation. Therefore, It is suitable for portable set with speaker.
PACKAGE OUTLINE NJU8789V
FEATURES
Clock-less switching driver
1-channel 1bit Audio Signal Input
Monaural BTL Output
Standby(Hi-Z) Control Function
Operating Voltage : 1.8V to 4.5V
Driving Voltage
: VDD to 4.5V
CMOS Technology
Package Outline
: SSOP10
PIN CONFIGURATION
VDD IN
NC
TEST
STBYb
1 2 3 4 5
10 VSS 9 OUTP 8 VDDO 7 OUTN 6 VSS
BLOCK DIAGRAM
VDD
VDDO
IN STBYb
LEVEL SHIFTER
LEVEL SHIFTER
VSS
OUTN OUTP NJU8789
Ver.2009-01-21
-1-
NJU8789
TERMINAL DESCRIPTION
No.
SYMBOL
I/O
Function
1 VDD − Power Supply
8
VDDO
− Output ...
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