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DM5865 Datasheet Preview

DM5865 Datasheet

4-Channel 720H Video Decoders and Audio Codecs

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DM5865
4-Channel 720H Video Decoders and Audio Codecs
1. Features
z Video Decoder
Accepts NTSC (M), PAL (B, D, G, H, I, M,
Nc)
Hardware Fast Switch function
Fast Switch also controllable by software
or external pin
Software channel ID in active region
Four 10-bits video ADCs with built in 6.5
MHz analog low pass filter
Automatic gain control for Luminance and
Chrominance
Programmable brightness, contrast,
saturation, hue, and sharpness
5-H comb filter for YC separation
Chrominance line filter for PAL phase error
DLL for video synchronization, supports
27MHz crystal within +/-1000 ppm
variance
Advanced video synchronization for weak
and noisy CVBS. Supports video signal
transmitted by 500-meter long cable
Up to 4 CCIR656 output interfaces which
could be configured as 4 sets of CCIR656
(27MHz) or 2 sets of TDM2 (54MHz) or 2
set of TDM4 (108MHz)
Support line lock camera
z Audio Codecs
ƒ Five audio ADCs and one audio
DAC are integrated
ƒ Master I2S/DSP playback, record
and audio-mixing
ƒ Supports extended I2S/DSP format
transmitting up to 16 audio channels
using one data pin
ƒ Audio cascade up to 16 channels
ƒ 16-bit or 8-bit 48/24/16/8 KHz PCM
format
z Miscellaneous
ƒ Use a single external 27MHz crystal
to support 720H video
ƒ Two programmable PLLs integrated
ƒ Slave I2C bus
ƒ Ultra low power consumption. Under
500mW for normal operation. Under
50mW for suspend mode.
ƒ 128-pin LQFP package
(14mmx14mm)
ƒ 1.8V core power, 3.3V analog
power and 1.8V analog power
Product Brief
Version: 1.0
March 1, 2013
www.davicom.com.tw
1




Davicom

DM5865 Datasheet Preview

DM5865 Datasheet

4-Channel 720H Video Decoders and Audio Codecs

No Preview Available !

DM5865
4-Channel 720H Video Decoders and Audio Codecs
2. General Description
The DM5865 is a 4-channel video decoder which
converts 4 channels of 6.5 MHz analog CVBS signals
to 4 channels of digital 27 MHz CCIR656 signals. The
DM5865 integrates two internal PLLs, and decodes
720H videos using the same (27MHz) external clock
source. The DM5865 also features a patented fast
switch function. With the fast switch function, the
DM5865 can decode up to 8 analog CVBS with little
frame rate loss.
The DM5865 also includes five audio ADCs and one
audio DAC. Audio cascade up to 16 channels is also
supported.
2. Block Diagram
Product Brief
Version: 1.0
March 1, 2013
www.davicom.com.tw
2


Part Number DM5865
Description 4-Channel 720H Video Decoders and Audio Codecs
Maker Davicom
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DM5865 Datasheet PDF






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