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AK8853
NTSC/PAL/SECAM Digital Video Decoder
| The AK8853 is a single-chip digital decoder for NTSC, PAL, and SECAM composite video signals. Its output data is in YCbCr format, compliant with ITU-R BT.601. Its pixel clock, with a generated clock rate of 27 MHz, synchronizes with the input signal. Its output interface is ITU-R BT.656 compliant. Closed-caption, VBID, and WSS encoded information in the input signal is externally accessible. Microprocessor access is via a I2C interface. |
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- Decodes composite video signals NTSC (J, M, 4.43), PAL (B, D, G, H, I, M, N, Nc, 60), SECAM.
- Four input channels, with internal video switch.
- 10-bit ADC 1 channel.
- Internal line-locked and frame-locked PLLs for generation of clock synchronized with input signal.
- Internal PGA (-6 dB to 6 dB).
- Adaptive automatic gain control (AGC).
- Auto color control (ACC).
- Image adjustment (contrast, saturation, brightness, hue, sharpness).
- Automatic input signal detection.
- Adaptive 2-D Y/C separation.
- PAL decoding phase correction.
- ITU-R BT.656 format output (with 4:2:2_8 bit parallel_EAV/SAV)
- Closed-caption signal decoding (output via register).
- WSS signal decoding (output via register).
- Macrovision signal detection (Macrovision certification).
- Power down function.
- I2C control.
- 1.70~2.00 V core power supply.
- 1.70~3.60 V interface power supply.
- Operating temperature range: -40°C to 105°C. (AK8853XQ)
- Operating temperature range: -40°C to 85°C. (AK8853VN)
- 48-pin LQFP package. (AK8853XQ)
- 48-pin QFN package. (AK8853VN)
(Note) The difference between AK8853XQ and AK8853VN is operating temperature range and package type.
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AK8853 BLOCK DIAGRAM
Data Sheet PDF
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Data Sheets
Rev. Rev-E-00 2008/01
PDF : 611KB / 70pages
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