NJU8789 Datasheet, PDF (1/6 Pages) New Japan Radio – Monaural BTL Output Clock-less Switching Driver for Class D Amplifier

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
: V_DD to 4.5V
CMOS Technology
Package Outline
: SSOP10
PIN CONFIGURATION
V_DD
1
IN
2
NC
3
TEST
4
STBYb
5
10
V_SS
9
OUT_P
8
V_DDO
7
OUT_N
6
V_SS
BLOCK DIAGRAM
V_DD
V_DDO
IN
STBYb
LEVEL
SHIFTER
LEVEL
SHIFTER
V_SS
OUT_N
OUT_P
NJU8789
Ver.2009-01-21
-1-