DM5885 Datasheet, PDF (1/3 Pages) Davicom Semiconductor, Inc. – 4-Channel Video Decoders and Mixer and Audio Codecs

DM5885
4-Channel Video Decoders and Mixer and Audio Codecs
1. Features
z Video Decoder
ƒ Accepts NTSC (M), PAL (B, D, G, H, I,
M, Nc)
ƒ Hardware Fast Switch function
ƒ Fast Switch also controllable by
software or external pin
ƒ Software channel ID in active region
ƒ Four 10-bits video ADCs with built in
6.5 MHz analog low pass filter
ƒ Automatic gain control for Luminance
and Chrominance
ƒ Programmable brightness, contrast,
saturation, hue, and sharpness
ƒ 5-H comb filter for YC separation
ƒ Chrominance line filter for PAL phase
error
ƒ DLL for video synchronization,
supports 27MHz crystal within
+/-1000 ppm variance
ƒ Advanced video synchronization for
weak and noisy CVBS. Supports
video signal transmitted by
500-meter long cable
ƒ Up to 2 CCIR656 output interfaces
which could be configured as 2 sets
of CCIR656 (27MHz) or 2 sets of
TDM2 (54MHz) or 1 set of TDM4
(108MHz)
ƒ 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 16-bit or 8-bit 48/24/16/8 KHz PCM
format
z Video Mixer
ƒ Two SD mixers and one HD mixer.
Each mixer supports up to 4
channels
ƒ Two SD CCIR656 outputs (27MHz)
or one HD SMPTE 274M output
(74.25MHz)
ƒ One TDM4 (108MHz) output
ƒ One optional TDM4 input as mixer
video sources.
ƒ Various mixing combinations.
Special H partition supported
ƒ Video mirror supported
ƒ Support both interlaced and
progressive mixer output
ƒ 16-bit SDRAM interface
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
www.davicom.com.tw
1
Version: 1.0
March 1, 2013