Monaural BTL Output Switching Driver
NJU8719
www.DataSheet4U.com
PRELIMINARY
Monaural BTL Output Switching Driver for Class D Amplifier
! GENERAL DESCRIPTI...
Description
NJU8719
www.DataSheet4U.com
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
! FEATURES
# # # # # # 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
! PIN CONFIGURATION
VDD IN NC MCK STBYB 1 2 3 4 5 10 9 8 7 6 VSS OUTP VDDO OUTN VSS
! BLOCK DIAGRAM
VDD
VDDO VSS
IN Dead Time Generator MCK
OUTP
OUTN
STBYB
VSS
Ver.2004-05-20
-1-
NJU8719
www.DataSheet4U.com
! TERMINAL DESCRIPTION
No. 1 2 3 4 SYMBOL VDD IN NC MCK I/O − I − I Function Power Supply, VDD=5V 1-bit Data Input Terminal Non connection Master Clock Input Terminal
The condition of the data input terminal is fetched with the rising edge of this signal.
Standby Control Terminal (L:Standby) 5 STBYB I 6 Power GND and Output GND terminal: VSS=0V VSS − 10 7 OUTN O Negative output 8 VDDO − Output Power Supply, VDD=5V 9 OUTP O Positive output *VSS(Terminal No.6,10) should be connected at a nearest point to the IC. *VDD(Terminal No.1) and VDDO(Terminal No.8) should be connected at a nearest point to the IC...
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