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HT82V737 Datasheet

  • HT82V737

  • 16-Bit Stereo Audio D/A Converter with Earphone Driver

  • 8頁

  • HOLTEK

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HT82V737
16-Bit Stereo Audio D/A Converter with Earphone Driver
Features
路
Wide supply voltage range: 2.4V~5.5V
路
Low power consumption
路
16-bit dynamic range
路
Low total harmonic distortion
路
Stereo audio outputs
路
Data in 2壟s complement format, TTL
路
Minimum number of external components is required
路
Low clock jitter sensitivity
路
Built-in highly efficient earphone driver
路
16-pin NSOP package
Applications
路
MP3 player
路
CD/VCD ROM and player
路
Satellite/cable STB
路
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壟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
+
O u t
S e r ia l- to - p a r a lle l
C o n v e r s io n
V
B C K
W S
D IN
D a ta L a tc h
+
O u t
D D
D A C
o p
R C H
o p
+
D V D D
D V S S
S e r ia l- to - p a r a lle l
C o n v e r s io n
o p
O u t
L C H
D A C
+
o p
+
o p
P D
3 0 k
W
2 0 k
W
3 0 k
W
2 0 k
W
A V S S
R IN
R O U T
L IN
L O U T
A V D D
B IA S
Rev. 1.00
1
November 26, 2003

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