BT865AKPF

Manufacturer Part NumberBT865AKPF
DescriptionYCrCb to NTSC/PAL digital video encoder
ManufacturerConexant Systems, Inc.
BT865AKPF datasheet
 
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Bt864A/865A
YCrCb to NTSC/PAL Digital Video Encoder
The Bt864A/865A is specifically designed for video systems requiring the generation of
composite, Y/C (S-video) or RGB (SCART) video signals from an 8- or 16-bit YCrCb
digital video stream. Worldwide video standards are supported including NTSC-M (N.
America, Taiwan, Japan), PAL-B,D,G,H,I (Europe, Asia), PAL–M (Brazil), PAL-N
(Uruguay, Paraguay) and PAL–Nc (Argentina). The Bt864A and Bt865A are functionally
identical, with the exception that Bt865A can output the Macrovision level 7 anticopy
algorithm.
Horizontal sync (HSYNC*) and vertical sync (VSYNC*) may be configured as inputs
(slave mode) or outputs (master mode). BLANK* is an input and may be externally
controlled. Horizontal and vertical blanking are automatically generated. The rise and fall
times of sync, the burst envelope, and closed caption data are internally controlled.
Analog luminance (Y) and chrominance (C) information is available on the Y and C
outputs for interfacing to S-video equipment. The composite analog video signal is
output simultaneously onto two outputs. This allows one output to provide baseband
composite video while the other drives an RF modulator. Analog RGB is also available to
allow for support of the European SCART/PeriTV interface.
Functional Block Diagram
TTXDAT
TTXREQ
SDA
SCL
CLK
P[7:0]
Y[7:0]
RESET*
2 x
HSYNC*
Latch
Upsampling
VSYNC*
BLANK*
1.3 MHz
LPF
FIELD
SLAVE
VDD3V
ALTADDR
Data Sheet
VBIAS
VREF
FSADJUST
Internal
VREF
10
DAC
10
DAC
Color
Mod.
Space
and
Convert
Mixer
10
DAC
10
DAC
SLEEP
RGBOUT
Distinguishing Features
• 8- or 16-bit 4:2:2 YCrCb inputs
• NTSC-M/PAL/PAL–M/PAL–N/PAL–Nc
composite video outputs
• S-Video/RGB (SCART) outputs
• CCIR 601 or square pixel operation
• 2x oversampling
• 10-bit DACs
• Master or slave video timing
• Auto mode detection function
(slave mode)
• Interlaced/noninterlaced operation
• Macrovision 7 support (Bt865A only)
• Closed caption encoding
• Teletext encoding (WST system B)
2
• I
C Interface
• On-board voltage reference
• Power-down modes
• 52-pin PQFP package
• Programmable luma delay
(single-channel)
• 5 V or 3.3 V supply voltage
• CGMS/WSS (16:9)
Related Products
COMP
• Bt852
• Bt856/7
• Bt864/5
CVBS/B
• Bt866/7
CVBS/G
Applications
• Digital cable systems
Y/CVBS
• Satellite television setup boxes
(DBS/DSS)
• DVD players
C/R
• Digital VCR (DVC, DVHS)
• VideoCD players
• Portable VideoCD players
• Digital cameras
• PC add-on cards
100138B
September 2000

BT865AKPF Summary of contents