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NVP1914
4-CH 960H Video Decoders and Audio Codecs with Video
Encoder
Information contained here is subject to change without notice.
Make sure to check and use an updated version of the Data sheet.
www.nextchip.com
2012.11. 27
REV 0.0

1 Page





NVP1914
4-CH 960H Video Decoders and Audio Codecs with Video Encoder
4 CH 960H Video Decoders and Audio Codecs with Video Encoder
NVP1914 includes 4-Channel 720H/960H Video Decoders and 5-Channel Audio Codecs with
720H/960H Video Encoder. 4-Channel 720H/960H Video Decoder delivers high quality images. It
accepts separate 4 CVBS inputs from Camera, TV, DVD and the other video signal sources. It
digitizes and decodes NTSC/PAL video signal into digital video components which represents 8-bit
BT.1302 4:2:2 format with 36MHz or 72MHz/144MHz multiplexed. NVP1914 includes Clock PLL, so
72/144MHz time multiplexed function available.
720H/960H Video Encoder plays the roles of converting the 8bit BT.656/BT.1302 format data into
CVBS or S-Video in 10bit resolution. And there is 2 Channel DAC which is fed from the above Video
Encoder.
5-Channel Audio Codec is 4-Channel Voice/1-Channel Mic PCM Codec which handles voice band
signals(300Hz~3400Hz) with 8bit/16bit linear PCM, 8bit G.711(u-law, A-law) PCM. Built-in audio
controller can generate digital outputs for recording/mixing and accepts digital input for playback.
4-Channel Coaxial Communication Protocol communicates between controller(DVR) and camera
on the video signal through coaxial cable.
Features
 Video Decoder
-. 4-Ch Video Decoder which accepts 4-CVBS
-. Output in BT.656/BT1302 4:2:2 format with 27/36/54/72/108/144MHz
-. Each Video Output Port 720H/960H Selectable
-. On Chip Analog CLAMP/PGA and Anti-aliasing Filter
-. Accepts NTSC-M/J/4.43, PAL-B/D/G/H/I/K/L/M/N/60
-. Robust Sync detection for weak, non-standard signals
-. High-performance 3H/5H 2D adaptive comb filter and Notch Filter
-. Programmable H/V Peaking filter for Luminance
-. CTI (Chrominance Transient Improvement)
-. Color compensation for PAL
-. IF compensation filter
-. Robust No-video detection
-. Programmable Brightness, Contrast, Saturation and Hue
-. Programmable Picture Quality Control
-. Black/White Detection
Data sheet
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3Pages




NVP1914
4-CH 960H Video Decoders and Audio Codecs with Video Encoder
Contents
1. Pin Information.................................................................................................................. 6
1.1 Pin Assignments.............................................................................................................................. 6
1.2 Pin Description ................................................................................................................................ 7
2. Video Decoder ................................................................................................................... 9
2.1. Functional Overview....................................................................................................................... 9
2.2. Video Input Formats .....................................................................................................................10
2.3. Analog Front End (CLAMP, PGA, Anti-aliasing Filter).................................................................. 11
2.4. Genlock (Robust Sync Detection, Robust No-Video Detection) .................................................. 11
2.5. Y/C separation (3H/5H Adaptive Comb Filter) .............................................................................12
2.6. Luma Processing..........................................................................................................................13
2.7. Chroma Processing......................................................................................................................13
2.8. Data Output Pin Order Control.....................................................................................................14
2.9. Output Format ..............................................................................................................................15
2.10. Output Mode...............................................................................................................................16
2.10.1 36MHz 720H/960H 1-CH D1 Data Output Mode...............................................................16
2.10.2 72MHz 720H/960H 2-Ch D1 Data Output Mode ...............................................................17
2.10.3. 144MHz 720H/960H 4-Ch D1 Data Output Mode ...............................................................18
2.10.4. 36MHz 2-Ch CIF Data Output Mode ...................................................................................21
2.10.5. 72MHz 4-Ch CIF Data Output Mode ...................................................................................22
2.11. Motion Detector ..........................................................................................................................23
3. Audio Codec .................................................................................................................... 25
3.1. Description ...................................................................................................................................25
3.2. Record Output ..............................................................................................................................25
3.2.1 Data Output Interface .............................................................................................................26
3.2.2. 2/4/8/16-Channel Data Output(256 fs) ..................................................................................28
3.2.3. 2/4/8/16-Channel Voice Data Output with 4-Channel Mic Data(320 fs) ................................29
3.2.4. ADATA_SP Output .................................................................................................................30
3.3. Playback Output ...........................................................................................................................31
3.4. Audio Detection ............................................................................................................................31
3.5. Cascade Operation ......................................................................................................................32
4. Video Encoder ................................................................................................................. 33
4.1. Video Encoder Function Description............................................................................................33
4.2. Video Encoder Function Description............................................................................................33
4.3. Pre-Processing.............................................................................................................................34
4.4. Y/C low pass filter.........................................................................................................................35
4.5. Modulation Part ............................................................................................................................35
4.6. Output Muxing ..............................................................................................................................35
5. Coaxial Protocol.............................................................................................................. 36
6. I2C Interface .................................................................................................................... 38
7. Register Description....................................................................................................... 39
8. Electrical characteristics.............................................................................................. 100
Data sheet
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