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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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HMP8154, HMP8156A
NTSC/PAL Encoders
The HMP8154 and HMP8156A NTSC and PAL encoders
are designed for use in systems requiring the generation of
high-quality NTSC and PAL video from digital image data.
YCbCr or RGB digital video data drive the P0-P23 inputs.
Overlay inputs are processed and the data is 2x upsampled.
The Y data is optionally lowpass filtered to 6MHz and drives
the Y analog output. Cb and Cr are each lowpass filtered to
1.3MHz, quadrature modulated, and summed. The result
drives the C analog output. The digital Y and C data are also
added together and drive the two composite analog outputs.
The YCbCr data may also be converted to RGB data to drive
the DACs, allowing support for analog component RGB and
the European SCART connector.
The DACs can drive doubly-terminated (37.5
) lines, and
run at a 2x oversampling rate to simplify the analog output
filter requirements. Any unused DACs may be powered down
to reduce power consumption.
Features
(M) NTSC and (B, D, G, H, I, M, N, CN) PAL Operation
ITU-R BT.601 and Square Pixel Operation
Digital Input Formats
- 4:2:2 YCbCr
- 8-Bit or 16-Bit
- 4:4:4 RGB
- 16-Bit (5, 6, 5) or 24-Bit (8, 8, 8)
- Linear or Gamma-Corrected
- 8-Bit BT.656
Overlay Mixing
- 7 Colors
- Internal, External, or Hard Mixing Control
Analog Output Formats
- Y/C + Two Composite
- RGB + Composite (SCART)
Flexible Video Timing Control
- Timing Master or Slave
- Programmable Input Sync Timing
- Selectable Polarity on Each Control Signal
- Programmable Blank Output Timing
- Field Output
Closed Caption Encoding for NTSC and PAL
2x Upscaling of SIF Video
Three Line Vertical Flicker Filter
(HMP8154 only)
Four 2x Oversampling, 10-Bit DACs with Power Down
I
2
C Interface
Verilog Models Available
Applications
Multimedia PCs
Video Conferencing
Video Editing
Related Products
- NTSC/PAL Encoders:
HMP8170-HMP8173
- HMP8190/91
- NTSC/PAL Decoders:
HMP8112A, HMP8115, HMP8116, HMP8130/31
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG. NO.
HMP8154CN
0 to 70
64 Ld PQFP
Q64.14x14
HMP8156ACN
0 to 70
64 Ld PQFP
Q64.14x14
HMP8154EVAL1
HMP8156EVAL1
Daughter/Stand-Alone Card Evaluation
Platform (Note)
HMP8156EVAL2
Frame Grabber Evaluation Platform (Note)
NOTE: Described in the Applications Section
Data Sheet
October 1998
File Number
4343.3