1
DATA SHORT
To request the full datasheet, please visit: ISL79985 or ISL79986
4-Channel Differential Input Video Decoder with
MIPI-CSI2/BT.656 Output for Around View Applications
ISL79985, ISL79986
The ISL79985, ISL79986 integrates four high quality
NTSC/PAL/SECAM video decoders that convert the analog
composite video signal to digital component YCbCr data for
automotive applications. Each channel contains a 10-bit ADC
that supports single-ended, differential, and pseudo
differential composite video inputs, proprietary clamp and
gain controllers, thus, utilizes a 4H-comb filter for separating
luminance and chrominance to reduce cross noise artifacts.
Integrated short-to-battery and short-to-ground detection,
advanced image enhancement capabilities such as the
programmable Automatic Contrast Adjustment (ACA), and the
MIPI-CSI2/ITU-R BT.656 output interface make the ISL79985,
ISL79986 an ideal solution for demanding automotive around
view applications.
Applications
•Automotive surround view
Features
Analog Video Decoder
• Software selectable analog input control allows for
combinations of single-ended CVBS and differential CVBS
• Integrated four video analog anti-aliasing filters and 10-bit
CMOS ADCs with differential and single-ended inputs
• Fully programmable static gain or automatic gain control for
the Y-channel
• Programmable white peak control for the Y-channel
• 4-H adaptive comb filter Y/C separation
• PAL delay line for color phase error correction
• Digital subcarrier PLL for accurate color decoding
• Digital horizontal PLL for synchronization processing and
pixel sampling
• Advanced synchronization processing and sync detection for
handling non-standard and weak signal
• Automatic color control and color killer
• Chroma IF compensation
• Programmable output cropping
FIGURE 1. ISL79985 BLOCK DIAGRAM
ADC
AA
FILTER
AGC
ADC
AA
FILTER
AGC
ADC
AA
FILTER
AGC
ADC
AA
FILTER
AGC
AFE
SHORT
DETECTION
LINE INTERLEAVING ENGINE
FIFO CONTROL
MIPI CSI
AND DPHY
I
2
C INTERFACE
OSC
PLL
XTI
XTO
SCLK
SDAT
REGFILE
IRQ
PD
RSTB
4H COMB
VIDEO DEC
ACA
CSC
DEC_CH
REGFILE
4H COMB
VIDEO DEC
ACA
CSC
DEC_CH
REGFILE
4H COMB
VIDEO DEC
ACA
CSC
DEC_CH
REGFILE
4H COMB
VIDEO DEC
ACA
CSC
DEC_CH
REGFILE
CLKO/ MPP[1]
MPP[0]
MIPIC
MIPID0
MIPID1
VIN1A
VIN1B
DIAG1
VIN2A
VIN2B
DIAG2
VIN3A
VIN3B
DIAG3
VIN4A
VIN4B
DIAG4
June 24, 2016
FN8851.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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