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MFG:80 Package Cooled:OKI
Part Number: MSM7661B
MFG: 80
Package Cooled: OKI
Description: The MSM7661B is an LSI device which converts digitally sampled NTSC or PAL video signals to 8-bit form...
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MSM7661B
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DataSheet
General Description
MSM7661B General Description
The MSM7661B is an LSI device which converts digitally sampled NTSC or PAL video signals to 8-bit format based on ITU-RBT601.
The input video signals available are composite video signals and S video signals.The composite video signals are converted to YUV data via a 2-dimensional Y/C separation circuit.
The A-to-D converted data is data sampled at pixel clock frequency or double pixel clock frequency (the built-in decimation filter is used). Input signal synchronization can lock synchronization and color burst at high speed through internal digital processing.
The MSM7661B is upward compatible with the MSM7661. It provides additional features which are added to the MSM7661 indicated by the mark and is superior to the MSM7661 in picture quality and synchronization stability. The device, which includes an additional register added to the MSM7661, has electrical characteristics which are nearly equal to those of the MSM7661.
The MSM7661B allows a pin-for-pin replacement with the MSM7661.
MSM7661B Maximum Ratings
|
Symbol |
Parameter |
Conditions |
Rating |
Unit |
|
VDD |
Power Supply Voltage |
- |
0.3 to +4.5 |
V |
|
VI |
Input Voltage |
- |
0.3 to +5.5 |
V |
|
PW |
Power Dissipation |
- |
800 |
mW |
|
TSTG |
Storage Temperature |
- |
55 to +150 |
°C |
MSM7661B Features
• Input video signals include the following two types of digital data that are A-to-D converted at pixel frequency or double pixel frequency :
NTSC/PAL composite video signal
NTSC/PAL S video signal
- 8-bit Y/8-bit C (CbCr) output (conforms to ITU-RBT601)
YCbCr 4 : 2 : 2
YCbC4 : 1 : 1
YCbCr 8-bit multiplex output (27 MHz) (not including SAV and EAV)
• 2-dimensional Y/C separation using adaptive comb filter (this filter is bypassed for S video signal input)
NTSC: 3 lines/2 lines
PAL: 2 lines (3 virtual lines)
• Input signal synchronization can lock synchronization and color burst at high speed through internal digital processing.
- Sampling frequency
13.5 MHz (ITU-R601)
12.27 MHz (NTSC Square Pixel)
14.31818 MHz (NTSC 4Fsc)
14.75 MHz (PAL Square Pixel)
• Internal AGC/ACC circuit
Switchable between AGC and MGC (fixed gain)
nSwitchable between ACC and MCC (fixed gain)
• Built-in decimation filter located in the input stage allows easy configuration of an external filter circuit (located ahead of A/D converter).
• Automatic NTSC/PAL recognition (only for ITU-RBT.601)
• Multiplex signal recognition (Teletext)
Data during vertical blanking is output in 8 bits in Through mode.
- I2C-bus interface
• 3.3 V single power supply (each I/O pin is 5 V tolerable)
• Package:64-pin plastic QFP (QFP64-P-1414-0.80-BK) (Product name: MSM7661B GS-BK)
MSM7661B Connection Diagram
MSM7661B
PDF/DataSheet Download
- Datasheet: MSM7661B
- File Size: 311585 KB
- Manufacturer: OKI
- Click here to Download
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