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N3_Datasheet_ver0_0_170314.pdf
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更新于2023-03-16
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AHD2.0 RX 解码IC N3 支持AHD2.0 RX which accepts 4-CVBS/ 720P@25p/30p(AHD1.0)/ 1080P@25p/30p(AHD2.0) -. 1-CH Output in BT.656/601 4:2:2 format with 27/36/74.25/148.5MHz -. On Chip Analog CLAMP, Anti-aliasing Filter and Equalizer Filter -. Accepts NTSC-M/J/4.43, PAL-B/D/G/H/I/K/L/M/N/60, AHD 720P @25p/30p, AHD 1080P@25p/30p
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N3
Data sheet
03.14.2017 (REV 0.0)
1/88
4-CH AHD2.0 RX
AHD2.0 RX
N3 include 4-Channels AHD2.0 RX.
4-Channels AHD2.0 RX delivers high quality images. It accepts separate 4 CVBS/ AHD1.0/AHD2.0
inputs from Camera and the other video signal sources. And select only one channel output.
It digitizes and decodes NTSC/PAL/AHD1.0/AHD2.0 video signal into digital video components
which represents 8-bit BT.656/BT.601(H/V Sync Out) 4:2:2 format with 27/36/74.25/148.5MHz.
Coaxial Communication Protocol communicates between controller(DVR) and camera on the video
signal through coaxial cable.
Features
AHD2.0 4CH RX
-. AHD2.0 RX which accepts 4-CVBS/ 720P@25p/30p(AHD1.0)/
1080P@25p/30p(AHD2.0)
-. 1-CH Output in BT.656/601 4:2:2 format with 27/36/74.25/148.5MHz
-. On Chip Analog CLAMP, Anti-aliasing Filter and Equalizer Filter
-. Accepts NTSC-M/J/4.43, PAL-B/D/G/H/I/K/L/M/N/60, AHD 720P @25p/30p,
AHD 1080P@25p/30p
-. Robust Sync detection for weak and unstable signals
-. High-performance 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 Gamma Correction
-. Internal Pattern Generator
N3
Data sheet
03.14.2017 (REV 0.0)
2/88
4-CH AHD2.0 RX
MISC
-. Built in Clock PLL
-. Built in 4-Ch Motion Detector(32x24)
-. Support Coaxial Communication
-. Support Each Channel 4-MPP Pins
-. Support I2C serial Interface
-. 1.2V / 3.3V Supply Voltage
-. 54HUQFN, 5.5x5.5
Application
-. Car After Market
Ordering Information
Device
Package
Temperature Range
N3
54HUQFN
-20 ~ 85℃
Related Products
-. NVS3320
N3
Data sheet
03.14.2017 (REV 0.0)
3/88
4-CH AHD2.0 RX
Functional Block Diagram
YC
Seperator
Y
Processor
Clamp/EQ
Control
Analog
Clamp
EQ
Anti-
Aliasing
Filter
ADC
AGC
WPD
HPLL
Gamma
C
Processor
Output
Formatter
ACC
FSC Lock
Motion
Detector
Coaxial
Communicator
PLL
I2C
Interface
(NTSC/PAL/
1M/2M AHD )
(NTSC/PAL/
1M/2M AHD )
Video Decoder 4ch
Video Decoder 4ch
MPP1~4
MPP1~4
SCL/SDA
SCL/SDA
VIN1~4
VIN1~4
VDO[7:0]
VDO[7:0]
N3
Data sheet
03.14.2017 (REV 0.0)
4/88
4-CH AHD2.0 RX
Contents
1. Pin Information ................................................................................................................ 5
1.1 Pin Assignments .......................................................................................................................................................... 5
1.2 Pin Description ............................................................................................................................................................ 6
2. AHD2.0 RX ...................................................................................................................... 8
2.1. Functional Overview................................................................................................................................................. 8
2.2. Video Input Formats ................................................................................................................................................ 9
2.3. Analog Front End (CLAMP, Anti-aliasing Filter, EQ Filter) .................................................................... 10
2.4. Genlock (Robust Sync Detection, Robust No-Video Detection) ...................................................... 10
2.5. YCS (Y/C Separator) ............................................................................................................................................... 11
2.6. Luma Processing ..................................................................................................................................................... 12
2.7. Chroma Processing ................................................................................................................................................ 13
2.8. Data Output Order & Direction Control ..................................................................................................... 14
2.9. Output Format ......................................................................................................................................................... 15
2.10. Motion Detector ................................................................................................................................................... 18
3. Coaxial Protocol ............................................................................................................ 21
3.1. PELCO PROTOCOL .................................................................................................................................................. 21
3.2. A-CP(AHD-Coaxial protocol) ............................................................................................................................. 22
4. I2C Interface .................................................................................................................. 23
5. Register Description ...................................................................................................... 24
6. Electrical characteristics ................................................................................................ 85
6.1. Absolute Maximum Ratings .............................................................................................................................. 85
6.2. Recommended Operating Condition ............................................................................................................ 85
6.3. DC Characteristics .................................................................................................................................................. 85
6.4. AC Characteristics ................................................................................................................................................... 86
7. Package Information ..................................................................................................... 87
8. Revision History ............................................................................................................ 88
9. Contact Information ....................................................................................................... 88
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