Document
HMP8117
Data Sheet January 1999 File Number
4643
NTSC/PAL Video Decoder
The HMP8117 is a high quality NTSC and PAL video decoder with internal A/D converters. It is compatible with NTSC M, PAL B, D, G, H, I, M, N, and combination N (NC) video standards. Both composite and S-video (Y/C) input formats are supported. A 2-line comb filter plus a user-selectable chrominance trap filter provide high quality Y/C separation. User adjustments include brightness, contrast, saturation, hue, and sharpness. Vertical blanking interval (VBI) data, such as Closed Captioning, Wide Screen Signalling and Teletext, may be captured and output as BT.656 ancillary data. Closed Captioning and Wide Screen Signalling information may also be read out via the I2C interface. The Videolyzer™ feature provides approved Macrovision™ copy-protection bypass and detection.
Features
• (M) NTSC and (B, D, G, H, I, M, N, NC) PAL Operation - Optional Auto Detect of Video Standard - ITU-R BT.601 (CCIR601) and Square Pixel Operation • Videolyzer Feature - Macrovision™ Bypass and Detection • Digital Anti-Alias Filter • Power Down Mode • Digital Output Formats - VMI Compatible - 8-bit, 16-bit 4:2:2 YCbCr - 15-bit (5,5,5), 16-bit (5,6,5) RGB - Linear or Gamma-Corrected - 8-bit BT.656 • Analog Input Formats - Three Analog Composite Inputs - Analog Y/C (S-video) Input • “Raw” (Oversampled) VBI Data Capture • “Sliced” VBI Data Capture Capabilities - Closed Captioning - Widescreen Signalling (WSS) - BT.653 System B, C and D Teletext - North American Broadcast Teletext (NABTS) - World System Teletext (WST) • 2-Line (1H) Comb Filter Y/C Separator • Fast I2C Interface
Ordering Information
PART NUMBER HMP8117CN HMPVIDEVAL/ISA NOTES: 1. PQFP is also known as QFP and MQFP. 2. Evaluation Board descriptions are in the Applications section. TEMP RANGE (oC) 0 to 70 PACKAGE PACKAGE NO.
80 Ld PQFP Q80.14x20
Evaluation Board: ISA Frame Grabber
Applications
• Multimedia PCs • Video Conferencing • Video Compression Systems • Video Security Systems • LCD Projectors and Overhead Panels • Related Products - NTSC/PAL Encoders: HMP815x, HMP817x, HMP819x - NTSC/PAL Decoders: HMP8112A, HMP8115
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. Videolyzer™ is a trademark of Intersil Corporation. Macrovision™ is a trademark of Macrovision Corporation. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
Functional Block Diagram
SEE ANALOG FRONT END BLOCK DIAGRAM
SEE DIGITAL PROCESSING BLOCK DIAGRAM
EXTERNAL ANTI-ALIAS FILTER MACROVISION DETECT YOUT YIN VBI DETECTION & DECODING LOGIC
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ADC YIN[7:0] FINE AGC, DC-RESTORE CONTROL INPUT SAMPLE RATE CONVERTER Y/C SEPARATION AND USER ADJUSTS OUTPUT SAMPLE RATE CONVERTER COARSE AGC DC-RESTORE ADC CIN[7:0] SYNC-TIP, BACKPORCH TIMING MICROPROCESSOR INTERFACE AND CONTROL RESET INTREQ SA SCL SCL
CVBS1
CVBS2
COMPOSITE/LUMA
CVBS3(Y)
INPUT CLAMP, MUX, COARSE AGC, DC-RESTORE
P[15:0] HSYNC
LCAP
OUTPUT VSYNC TIMING BLANK AND DATA FIELD FIFO DVALID VBIVALID
HMP8117
CHROMA
EXTERNAL ANTI-ALIAS FILTER
C
CCAP
Analog Front End Block Diagram
(EXTERNAL) INPUT VIDEO (INTERNAL CLAMP) VAA 1.75V nmos # PIN + GAIN CONTROL SET POINT 13 50µA CHROMA ATTEN (BELOW) 7 6 5 CLAMP CLAMP CLAMP 1.75V REF MUX SELECT LCAP STORAGE CAP CHROMA INPUT 2.5V C_IN 75 1.0µF EXTERNAL ANTI-ALIAS FILTER C 19 13-STEP VARIABLE ATTENUATOR 2.0V A/D_TEST 2X 17 BUF
10-BIT 10 ADC
1.0µF 75
-
TO MUX 4 TO 13 DECODER 4 11
BACKPORCH ENABLE LOW-PASS FILTER (REMOVE Fsc)
GAIN CORRECTION LOGIC
VID1
1.0µF 1.0µF 1.0µF 75
CVBS1 CVBS2 CVBS3(Y)
CHROMA MULT. (BELOW) YOUT 2X 9 YIN 8
FINE ADJUST MULT. FACTOR 2.5V 8-BIT TRUNCATE
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VID2 Y_IN 75 75
M U X
13-STEP VARIABLE ATTENUATOR 1.75V
EXTERNAL ANTI-ALIAS FILTER
BUF
10-BIT 10 ADC 1.5V
DIGITAL ANTIALIAS FILTER DISABLE
Y[7:0]
CORRECTION MULTIPLIER
CHARGE PUMP 100µA DISCHARGE CHARGE 100µA SYNC-TIP ENABLE
76 (OFFSET LUMA SIGNAL TO LOWER ADC REF ~= 1.5V)
0.1µF CHROMA ATTEN
LUMA DC-RESTORE LOGIC CHROMA MULT. 8-BIT TRUNCATE DIGITAL ANTIALIAS FILTER DISABLE
HMP8117
C[7:0]
(SIGNAL BIAS ~ 2.0V)
CORRECTION MULTIPLIER
1.5V CHARGE PUMP 100µA CCAP STORAGE CAP 0.1µF DISCHARGE 29 (OFFSET CHROMA SIGNAL TO ADC MID-SCALE ~= 2.0V) 100µA SYNC-TIP ENABLE # DECODER PIN # CHARGE CHROMA DC-RESTORE LOGIC
POWERDOWN
PIN #
5 6 9 7 8 19 17
NOMINAL (NTSC) OPERATING CONDITION
CVBSX. SIZE = INPUT. SYNC TIP CLAMPED AT ~= 1.75 VDC. YOUT /YIN . SIZE = ~1.0 VP-P, SYNC TIP OFFSET ~= 1.5 VDC. C. SIZE = INPUT SIZE. PORCH OFFSET ~= 2.0 VDC. A/D_TEST. SIZE ~= F(LUMA AGC), PORCH OFFSET ~= 2.0VDC.
PIN # NOMINAL (NTSC) OPERATING CONDITION
76 29 28 78 LCAP. DC-SIGNAL OFFSET ~= 2.4 VDC. CCAP. DC-SIGNAL OFFSET ~= 2.4 VDC. RSET. DC-SIGNAL OFFSET ~= 1.2 VDC. REF_CAP. DC-SIGNAL OFFSET ~= 2.5 VDC.
BIAS/ INTERNAL REFERENCE
28 78
RSET 12.1K REF_CAP 1.0µF
Digital Processing Block Diagram
CLK2 FREQ SELECT (24.54, 27.0 or 29.5MHz) HUE ADJUST LOCK STATUS
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VSYNC DETECT FIEL.