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New Japan Radio

NJU8789 Datasheet Preview

NJU8789 Datasheet

Monaural BTL Output Clock-less Switching Driver

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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-




New Japan Radio

NJU8789 Datasheet Preview

NJU8789 Datasheet

Monaural BTL Output Clock-less Switching Driver

No Preview Available !

NJU8789
TERMINAL DESCRIPTION
No.
SYMBOL
I/O
Function
1 VDD Power Supply
8
VDDO
Output Power Supply
6
10
VSS GND terminal
2 IN I 1-bit Data Input Terminal
9
OUTP
O Positive output
7
OUTN
O Negative output
5
STBYB
I
Standby Control Terminal
L: Standby
4
TEST
I
Maker test Terminal
L: Normal operation
3 NC Non connection
*VSS(Terminal No.6,10) should be connected at a nearest point to the IC.
INPUT TERMINAL STRUCTURE
VDD
Input
Terminal
VSS
-- 22 --
Ver.2009-01-21


Part Number NJU8789
Description Monaural BTL Output Clock-less Switching Driver
Maker New Japan Radio
Total Page 6 Pages
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