DATA SHORT
To request the full datasheet, please visit:
ISL79985
or
ISL79986
ISL79985, ISL79986
4-Channel Differential Input Video Decoder with MIPI-CSI2/BT.656 Output for
Around View Applications
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.
FN8851
Rev 2.00
June 24, 2016
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
Applications
• Automotive surround view
AFE
CLKO/ MPP[1]
VIN1A
VIN1B
AA
FILTER
AGC
ADC
4H COMB
VIDEO DE C
ACA
REGFILE
MPP[0]
CSC
DEC_CH
DIAG1
LINE INTERLEAVING ENGINE
VIN2A
VIN2B
DIAG2
VIN3A
AA
FILTER
AGC
ADC
4H COMB
VIDEO DE C
ACA
REGFILE
CSC
MIP IC
MIP I CSI
AND DPHY
FIFO CONTROL
DEC_CH
MIP ID0
VIN3B
AA
FILTER
AGC
ADC
4H COMB
VIDEO DE C
MIP ID1
ACA
REGFILE
CSC
DIAG3
VIN4A
DEC_CH
VIN4B
DIAG4
AA
FILTER
AGC
ADC
4H COMB
VIDEO DE C
ACA
REGFILE
CSC
DEC_CH
RSTB
PD
OSC
PLL
SHORT
DETECTION
I
2
C INTE RFACE
REGFILE
SCLK
SDAT
XTI
XTO
FIGURE 1. ISL79985 BLOCK DIAGRAM
FN8851 Rev 2.00
June 24, 2016
IRQ
Page 1 of 2
ISL79985, ISL79986
Features
(Continued)
Video Processing
• Automatic Contrast Adjustment (ACA)
• Programmable hue, brightness, saturation, contrast and
sharpness.
• Image enhancement with peaking and CTI
Miscellaneous
• Low power consumption
• Power save and power-down mode
• Short-to-battery detection
• Short-to-ground detection
• 2-wire MPU serial bus interface
• Single 27MHz crystal for all operations
• 1.2V/3.3 V power supply
• 48 Ld QFN package
•
AEC-Q100
qualified
MIPI Output (ISL79985)
• MIPI CSI-2 Version 1.1 compliant unidirectional output format
• Standard virtual channel support
• One or two data lanes
• YUV422 or RGB565 output format
Digital Output (ISL79986)
• Supports standard ITU-R BT.656 format or time multiplexed
output with 27/54/108MHz
• Output voltage 1.8V to 3.3V
AFE
CLKO/ MPP[1]
VIN1A
VIN1B
AA
FILTER
AGC
ADC
4H COMB
VIDEO DEC
DEC_CH
REGFILE
ACA
MPP[0]
CSC
DIAG1
LINE INTERLEAVING ENGINE
VIN2A
VIN2B
4H COMB
VIDEO DEC
DEC_CH
AA
FILTER
ACA
CSC
AGC
ADC
FIFO CONTROL
BT 656
DIAG2
VIN3A
VIN3B
DIAG3
REGFILE
VD[7:0]
AA
FILTER
AGC
ADC
4H COMB
VIDEO DEC
DEC_CH
REGFILE
ACA
CSC
VIN4A
VIN4B
AA
FILTER
AGC
ADC
4H COMB
VIDEO DEC
DEC_CH
DIAG4
REGFILE
RSTB
PD
OSC
PLL
SHORT
DETECTION
I
2
C
INTERFACE
SCLK
SDAT
ACA
CSC
REGFILE
XTI
XTO
FIGURE 2. ISL79986 BLOCK DIAGRAM
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FN8851 Rev 2.00
June 24, 2016
IRQ
Page 2 of 2