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The CXD2719Q is a CMOS LSI developed for Dolby Pro Logic Surround. A SRAM for short delay and AD/DA converters are built in, and all functions necessary for Dolby Pro Logic Surround such as an adaptive matrix, a passive decoder including BNR, auto input balance, a noise sequencer and center channel mode control are contained on a single chip. Features • Dolb.
• Dolby Pro Logic Surround decoding with a single chip
• 2-channel 1-bit AD converter, decimation filter and prefilter operational amplifier
• 4-channel 1-bit DA converter, oversampling filter and post filter
• Analog switch for DSP bypass
• Analog electronic attenuator (+1.5 to
–29.5dB) for center/surround channel trim
• 24K-bit SRAM for short delay
• No separation or other variance for digital processing
• External parts reduced by incorporating analog circuits Functions
• Adaptive matrix
• Center channel mode control (Normal/Phantom/Wide)
• Dolby 3 Stereo
• Auto input balance control (ON/OF.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | CXD2705AQ |
ETC |
CMOS Digital Audio Signal Processor |
|
| 2 | CXD2720Q |
Sony Corporation |
Single-Chip Digital Signal Processor for Karaoke |
|
| 3 | CXD2720Q-2 |
Sony Corporation |
Single-Chip Dolby Pro Logic Surround Decoder |
|
| 4 | CXD2721Q-1 |
Sony Corporation |
Single-Chip Digital Signal Processor for Karaoke |
|
| 5 | CXD2724AQ-1 |
Sony Corporation |
Single-Chip Dolby Pro Logic Surround Decoder |
|
| 6 | CXD2724AQ-3 |
Sony Corporation |
Single-Chip Dolby Pro Logic Surround Decoder |
|
| 7 | CXD2728Q |
Sony Corporation |
Single-Chip Dolby Pro Logic Surround Decoder |
|
| 8 | CXD2755Q |
Sony Electronics |
Super Audio CD Format Book Annex D&E Conformalmetering |
|
| 9 | CXD2011Q |
Sony |
Digital Comb Filter |
|
| 10 | CXD2018AQ |
Sony |
Vertical Deflection Processing |
|
| 11 | CXD2024AQ |
ETC |
C-MOS DIGITAL COMB FILTER |
|
| 12 | CXD2027Q |
Sony Corporation |
DBS Audio Signal Processor |
|