HT82V737 Datasheet, PDF (1/8 Pages) Holtek Semiconductor Inc – 16-Bit Stereo Audio D/A Converter with Earphone Driver

HT82V737
16-Bit Stereo Audio D/A Converter with Earphone Driver
Features
· Wide supply voltage range: 2.4V~5.5V
· Low power consumption
· 16-bit dynamic range
· Low total harmonic distortion
· Stereo audio outputs
· Data in 2¢s complement format, TTL
· Minimum number of external components is required
· Low clock jitter sensitivity
· Built-in highly efficient earphone driver
· 16-pin NSOP package
Applications
· MP3 player
· CD/VCD ROM and player
· Satellite/cable STB
· Digital portable audio/video equipment
General Description
HT82V737 is a low power consumption stereo DAC with
an integrated earphone driver. The device utilizes
CMOS technology specially for portable MP3 players,
VCD and CD machines.
It converts the 16 bits serial data into an analog output
voltage by high precision D/A converter. It can be used
with the Japanese input format: time multiplexed, two¢s
complement, MSB first TTL level serial input. With its ex-
cellent frequency response characteristics, the
HT82V737 provides users a low cost means of imple-
menting high quality audio voltage outputs. It also builds
in a class AB stereo driver and some application circuits,
thus, requires minimal external components.
The HT82V737 can support low voltage operation at
2.4V so it is very suitable for portable battery powered
audio device. A low supply in power down mode current
reduces power consumption. It is available in small
16-pin NSOP package.
Block Diagram
BCK
WS
D IN
DVDD
DVSS
S e r ia l- to - p a r a lle l
C o n v e r s io n
V DD
DAC
+op ^{O ut}
RCH
D a ta L a tc h
+op ^{O ut}
S e r ia l- to - p a r a lle l
C o n v e r s io n
+op ^{O ut}
LC H
DAC
+op
+op
30kW
PD
20kW
30kW
20kW
Rev. 1.00
1
November 26, 2003