Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- GENERAL DESCRIPTION
- REVISION HISTORY
- INTRODUCTION
- FUNCTIONAL BLOCK DIAGRAM
- SPECIFICATIONS
- ABSOLUTE MAXIMUM RATINGS
- PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
- ANALOG FRONT END
- ANALOG INPUT MUXING
- MANUAL INPUT MUXING
- XTAL CLOCK INPUT PIN FUNCTIONALITY
- 28.63636 MHz CRYSTAL OPERATION
- ANTIALIASING FILTERS
- SCART AND FAST BLANKING
- FAST BLANK CONTROL
- FB_MODE [1:0], Address 0xED [1:0]
- Static Mux Selection Control
- Alpha Blend Coefficient
- Fast Blank Edge Shaping
- Contrast Reduction
- Contrast Reduction Enable
- Contrast Mode
- Fast Blank and Contrast Reduction Programmable Thresholds
- FB_INV, Address 0xED [3], Write Only
- Readback of FB Pin Status
- FB Timing
- Alignment of FB Signal
- Color Space Converter Manual Adjust
- GLOBAL CONTROL REGISTERS
- STANDARD DEFINITION PROCESSOR (SDP)
- SD LUMA PATH
- SD CHROMA PATH
- SYNC PROCESSING
- VBI DATA RECOVERY
- GENERAL SETUP
- Video Standard Selection
- Autodetection of SD Modes
- VID_SEL [3:0], Address 0x00 [7:4]
- AD_SEC525_EN, SECAM 525 Autodetect Enable, Address 0x07 [7]
- AD_SECAM_EN, SECAM Autodetect Enable, Address 0x07 [6]
- AD_N443_EN, NTSC 443 Autodetect Enable, Address 0x07 [5]
- AD_P60_EN, PAL 60 Autodetect Enable, Address 0x07 [4]
- AD_PALN_EN, PAL N Autodetect Enable, Address 0x07 [3]
- AD_PALM_EN, PAL M Autodetect Enable, Address 0x07 [2]
- AD_NTSC_EN, NTSC Autodetect Enable, Address 0x07 [1]
- AD_PAL_EN, PAL (B/G/I/H) Autodetect Enable, Address 0x07 [0]
- Subcarrier Frequency Lock Inversion
- Lock-Related Controls
- VS_COAST_MODE [1:0], Address 0xF9 [3:2]
- ST_NOISE_VLD, Sync Tip Noise Measurement Valid, Address 0xDE [3], Read Only
- ST_NOISE [10:0], Sync Tip Noise Measurement, Addresses 0xDE [2:0], 0xDF [7:0]
- COLOR CONTROLS
- CON [7:0], Contrast Adjust, Address 0x08 [7:0]
- SD_SAT_CB [7:0], SD Saturation Cb Channel, Address 0xE3 [7:0]
- SD_SAT_CR [7:0], SD Saturation Cr Channel, Address 0xE4 [7:0]
- SD_OFF_CB [7:0], SD Offset Cb Channel, Address 0xE1 [7:0]
- SD_OFF_CR [7:0], SD Offset Cr Channel, Address 0xE2 [7:0]
- BRI [7:0], Brightness Adjust, Address 0x0A [7:0]
- HUE [7:0], Hue Adjust, Address 0x0B [7:0]
- DEF_Y [5:0], Default Value Y, Address 0x0C [7:2]
- DEF_C [7:0], Default Value C, Address 0x0D [7:0]
- DEF_VAL_EN, Default Value Enable, Address 0x0C [0]
- DEF_VAL_AUTO_EN, Default Value Automatic Enable, Address 0x0C [1]
- CLAMP OPERATION
- LUMA FILTER
- CHROMA FILTER
- GAIN OPERATION
- Luma Gain
- Chroma Gain
- CAGC [1:0], Chroma Automatic Gain Control, Address 0x2C [1:0]
- CAGT [1:0], Chroma Automatic Gain Timing, Address 0x2D [7:6]
- CMG [11:0]/CG [11:0], Chroma Manual Gain/Chroma Gain, Address 0x2D [3:0], Address 0x2E [7:0]
- CKE, Color-Kill Enable, Address 0x2B [6]
- CKILLTHR [2:0], Color-Kill Threshold, Address 0x3D [6:4]
- CHROMA TRANSIENT IMPROVEMENT (CTI)
- DIGITAL NOISE REDUCTION (DNR) AND LUMA PEAKING FILTER
- COMB FILTERS
- NTSC Comb Filter Settings
- PAL Comb Filter Settings
- Vertical Blank Control
- NVBIOLCM [1:0], NTSC VBI Odd Field Luma Comb Mode, Address 0xEB [7:6]
- NVBIELCM [1:0], NTSC VBI Even Field Luma Comb Mode, Address 0xEB [5:4]
- PVBIOLCM [1:0], PAL VBI Odd Field Luma Comb Mode, Address 0xEB [3:2]
- PVBIELCM [1:0], PAL VBI Even Field Luma Comb Mode, Address 0xEB [1:0]
- NVBIOCCM [1:0], NTSC VBI Odd Field Chroma Comb Mode, Address 0xEC [7:6]
- NVBIECCM [1:0], NTSC VBI Even Field Chroma Comb Mode, Address 0xEC [5:4]
- PVBIOCCM [1:0], PAL VBI Odd Field Chroma Comb Mode, Address 0xEC [3:2]
- PVBIECCM [1:0], PAL VBI Even Field Chroma Comb Mode, Address 0xEC [1:0]
- AV CODE INSERTION AND CONTROLS
- BT656-4, ITU-R BT.656-4 Enable, Address 0x04 [7]
- SD_DUP_AV, Duplicate AV Codes, Address 0x03 [0]
- VBI_EN, Vertical Blanking Interval Data Enable, Address 0x03 [7]
- BL_C_VBI, Blank Chroma During VBI, Address 0x04 [2]
- RANGE, Range Selection, Address 0x04 [0]
- AUTO_PDC_EN, Automatic Programmed Delay Control, Address 0x27 [6]
- LTA [1:0], Luma Timing Adjust, Address 0x27 [1:0]
- CTA [2:0], Chroma Timing Adjust, Address 0x27 [5:3]
- SYNCHRONIZATION OUTPUT SIGNALS
- HS Configuration
- VS and FIELD Configuration
- NEWAVMODE, New AV Mode, Address 0x31 [4]
- HVSTIM, Horizontal VS Timing, Address 0x31 [3]
- VSBHO, VS Begin Horizontal Position Odd, Address 0x32 [7]
- VSBHE, VS Begin Horizontal Position Even, Address 0x32 [6]
- VSEHO VS, End Horizontal Position Odd, Address 0x33 [7]
- VSEHE, VS End Horizontal Position Even, Address 0x33 [6]
- PVS, Polarity VS, Address 0x37 [5]
- PF, Polarity FIELD, Address 0x37 [3]
- NVBEGDELO, NTSC Vsync Begin Delay on Odd Field, Address 0xE5 [7]
- NVBEGDELE, NTSC Vsync Begin Delay on Even Field, Address 0xE5 [6]
- NVBEGSIGN, NTSC Vsync Begin Sign, Address 0xE5 [5]
- NVBEG [4:0], NTSC Vsync Begin, Address 0xE5 [4:0]
- NVENDDELO, NTSC Vsync End Delay on Odd Field, Address 0xE6 [7]
- NVENDDELE, NTSC Vsync End Delay on Even Field, Address 0xE6 [6]
- NVENDSIGN, NTSC Vsync End Sign, Address 0xE6 [5]
- NVEND [4:0], NTSC Vsync End, Address 0xE6 [4:0]
- NFTOGDELO, NTSC Field Toggle Delay on Odd Field, Address 0xE7 [7]
- NFTOGDELE, NTSC Field Toggle Delay on Even Field, Address 0xE7 [6]
- NFTOGSIGN, NTSC Field Toggle Sign, Address 0xE7 [5]
- NFTOG [4:0], NTSC Field Toggle, Address 0xE7 [4:0]
- PVBEGDELO, PAL Vsync Begin Delay on Odd Field, Address 0xE8 [7]
- PVBEGDELE, PAL Vsync Begin Delay on Even Field, Address 0xE8 [6]
- PVBEGSIGN, PAL Vsync Begin Sign, Address 0xE8 [5]
- PVBEG [4:0], PAL Vsync Begin, Address 0xE8 [4:0]
- PVENDDELO, PAL Vsync End Delay on Odd Field, Address 0xE9 [7]
- PVENDDELE, PAL Vsync End Delay on Even Field, Address 0xE9 [6]
- PVENDSIGN, PAL Vsync End Sign, Address 0xE9 [5]
- PVEND [4:0], PAL Vsync End, Address 0xE9 [4:0]
- PFTOGDELO, PAL Field Toggle Delay on Odd Field, Address 0xEA [7]
- PFTOGDELE, PAL Field Toggle Delay on Even Field, Address 0xEA [6]
- PFTOGSIGN, PAL Field Toggle Sign, Address 0xEA [5]
- PFTOG, PAL Field Toggle, Address 0xEA [4:0]
- SYNC PROCESSING
- VBI DATA DECODE
- VDP Default Configuration
- VDP Manual Configuration
- MAN_LINE_PGM, Enable Manual Line Programming of VBI Standards, Address 0x64 [7], User Sub Map
- VBI_DATA_Px_Ny [3:0], VBI Standard to be Decoded on Line x for PAL, Line y for NTSC, Addresses 0x64 to 0x77, User Sub Map
- VDP_TTXT_TYPE_MAN_ENABLE, Enable Manual Selection of Teletext Type, Address 0x60 [2], User Sub Map
- VDP_TTXT_TYPE_MAN [1:0], Specify the Teletext Type, Address 0x60 [1:0], User Sub Map
- VDP Ancillary Data Output
- ADF_ENABLE, Enable Ancillary Data Output Through 656 Stream, Address 0x62 [7], User Sub Map
- ADF_DID [4:0], User-Specified Data ID Word in Ancillary Data, Address 0x62 [4:0], User Sub Map
- ADF_SDID [5:0], User-Specified Secondary Data ID Word in Ancillary Data, Address 0x63 [5:0], User Sub Map
- DUPLICATE_ADF, Enable Duplication/Spreading of Ancillary Data over Y and C Buses, Address 0x63 [7], User Sub Map
- ADF_MODE [1:0], Determine the Ancillary Data Output Mode, Address 0x62 [6:5], User Sub Map
- Structure of VBI Words in Ancillary Data Stream
- VDP Framing Code
- I2C INTERFACE
- STANDARD DETECTION AND IDENTIFICATION
- Notes
- STDI_DVALID, Standard Identification Data Valid Read Back, Address 0xB1 [7]
- STDI_LINE_COUNT_MODE, Address 0x86 [3]
- BL [13:0], Block Length Readback, Address 0xB1 [5:0], Address 0xB2 [7:0]
- LCVS [4:0], Line Count in Vsync Readback, Address 0xB3 [7:3]
- LCF [10:0], Line Count in Field Readback, Address 0xB3 [2:0], Address 0xB4 [7:0]
- FCL [12:0], 1/256th of Field Length in Number of Crystal Clocks Read back, Address 0xCA [4:0], Address 0xCB [7:0]
- STDI Readback Values for SD, PR, and HD
- I2C READBACK REGISTERS
- Teletext
- CGMS and WSS
- CC
- CC_CLEAR, Closed Captioning Clear, Address 0x78 [0], User Sub Map, Write Only, Self-Clearing
- CC_AVL, Closed Captioning Available, Address 0x78 [0], User Sub Map, Read Only
- CC_EVEN_FIELD, Address 0x78 [1], User Sub Map, Read Only
- VDP_CCAP_DATA_0, Address 0x79 [7:0], User Sub Map, Read Only
- VDP_CCAP_DATA_1, Address 0x7A [7:0], User Sub Map, Read Only
- VITC
- VPS/PDC/UTC/Gemstar
- I2C_GS_VPS_PDC_UTC (VDP) [1:0], Address 0x9C [6:5], User Sub Map
- GS_PDC_VPS_UTC_CLEAR, GS/PDC/VPS/UTC Clear, Address 0x78 [4], User Sub Map, Write Only, Self-Clearing
- GS_PDC_VPS_UTC_AVL, GS/PDC/VPS/UTC Available, Address 0x78 [4], User Sub Map, Read Only
- VDP_GS_VPS_PDC_UTC Readback Registers, Addresses 0x84 to 0x90, User Sub Map
- VPS
- Gemstar
- AUTO_DETECT_GS_TYPE, Address 0x61 [4], User Sub Map
- GS_DATA_TYPE, Address 0x78 [5], User Sub Map, Read Only
- PDC/UTC
- VBI System 2
- Gemstar Data Recovery
- GDE_SEL_OLD_ADF, Address 0x4C [3], User Map
- Gemstar Bit Names
- Gemstar 2× Format, Half-Byte Output Mode
- Gemstar 1× Format, Half-Byte Output Mode
- NTSC CC Data
- PAL CC Data
- GDECEL [15:0], Gemstar Decoding Even Lines, Address 0x48 [7:0], Address 0x49 [7:0]
- GDECOL [15:0], Gemstar Decoding Odd Lines, Address 0x4A [7:0], Address 0x4B [7:0]
- GDECAD, Gemstar Decode Ancillary Data Format, Address 0x4C [0]
- Letterbox Detection
- Detection at the Start of a Field
- Detection at the End of a Field
- Detection at the Midrange
- LB_LCT [7:0], Letterbox Line Count Top, Address 0x9B [7:0]; LB_LCM [7:0], Letterbox Line Count Mid, Address 0x9C [7:0]; LB_LCB [7:0], Letterbox Line Count Bottom, Address 0x9D [7:0]
- LB_TH [4:0], Letterbox Threshold Control, Address 0xDC [4:0]
- LB_SL [3:0], Letterbox Start Line, Address 0xDD [7:4]
- LB_EL [3:0], Letterbox End Line, Address 0xDD [3:0]
- IF Compensation Filter
- I2C Interrupt System
- Interrupt Request Output Operation
- INTRQ_DUR_SEL [1:0], Interrupt Duration Select, Address 0x40 [7:6], User Sub Map
- Interrupt Drive Level
- INTRQ_OP_SEL [1:0], Interrupt Duration Select, Address 0x40 [1:0], User Sub Map
- Multiple Interrupt Events
- Macrovision Interrupt Selection Bits
- MV_INTRQ_SEL [1:0], Macrovision Interrupt Selection Bits, Address 0x40 [5:4], User Sub Map
- PIXEL PORT CONFIGURATION
- MPU PORT DESCRIPTION
- I2C REGISTER MAPS
- PCB LAYOUT RECOMMENDATIONS
- TYPICAL CIRCUIT CONNECTION
- OUTLINE DIMENSIONS
ADV7188
Rev. A | Page 24 of 112
STANDARD DEFINITION PROCESSOR (SDP)
05478-012
DIGITIZED CVBS
DIGITIZED Y (Y/C)
VIDEO DATA
OUTPUT
STANDARD DEFINITION PROCESSOR
DIGITIZED CVBS
DIGITIZED C (Y/C)
MACROVISION
DETECTION
VBI DATA
RECOVERY
STANDARD
AUTODETECTION
LUMA
FILTER
LUMA
DIGITAL
FINE
CLAMP
LUMA
GAIN
CONTROL
LUMA
RESAMPLE
LUMA
2D COMB
SLLC
CONTROL
CHROMA
FILTER
CHROMA
DEMOD
F
SC
RECOVERY
CHROMA
DIGITAL
FINE
CLAMP
CHROMA
GAIN
CONTROL
CHROMA
RESAMPLE
CHROMA
2D COMB
SYNC
EXTRACT
LINE
LENGTH
PREDICTOR
RESAMPLE
CONTROL
AV
CODE
INSERTION
MEASUREMENT
BLOCK (= >I
2
C)
VIDEO DATA
PROCESSING
BLOCK
Figure 12. Block Diagram of the Standard Definition Processor
A block diagram of the ADV7188 standard definition processor
(SDP) is shown in
Figure 12.
The SDP can handle standard definition video in CVBS, Y/C,
and YPrPb formats. It can be divided into a luminance path and
a chrominance path. If the input video is of a composite type
(CVBS), both processing paths are fed with the CVBS input.
SD LUMA PATH
The input signal is processed by the following blocks:
• Luma Digital Fine Clamp. This block uses a high precision
algorithm to clamp the video signal.
• Luma Filter. This block contains a luma decimation filter
(YAA) with a fixed response and some luma-shaping filters
(YSH) that have selectable responses.
• Luma Gain Control. The automatic gain control (AGC) can
operate on a variety of modes, including a mode based on
the depth of the horizontal sync pulse, a mode based on the
peak white mode, and a mode that uses a fixed manual gain.
• Luma Resample. To correct for errors and dynamic changes
in line lengths, the data is digitally resampled.
• Luma 2D Comb. The two-dimensional comb filter provides
Y/C separation.
• AV Code Insertion. At this point, the decoded luma (Y)
signal is merged with the retrieved chroma values. AV codes
(as per ITU-R. BT-656) can be inserted.
SD CHROMA PATH
The input signal is processed by the following blocks:
• Chroma Digital Fine Clamp. This block uses a high
precision algorithm to clamp the video signal.
• Chroma Demodulation. This block uses a color subcarrier
(F
SC
) recovery unit to regenerate the color subcarrier for
any modulated chroma scheme and then performs an AM
demodulation for PAL and NTSC and an FM demodulation
for SECAM.
• Chroma Filter. This block contains a chroma decimation
filter (CAA) with a fixed response and some chroma-
shaping filters (CSH) that have selectable responses.
• Chroma Gain Control. Automatic gain control (AGC) can
operate on several modes, including a mode based on the
color subcarrier’s amplitude, a mode based on the depth of
the horizontal sync pulse on the luma channel, and a mode
that uses a fixed manual gain.
• Chroma Resample. The chroma data is digitally resampled
to keep it aligned with the luma data. The resampling is done
to correct for static and dynamic errors in the line lengths
of the incoming video signal.
• Chroma 2D Comb. The two-dimensional, 5-line, super-
adaptive comb filter provides high quality Y/C separation
in case the input signal is CVBS.
• AV Code Insertion. At this point, the demodulated chroma
(Cr and Cb) signal is merged with the retrieved luma
values. AV codes (as per ITU-R. BT-656) can be inserted.