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參數資料
| 型號： | GS9023ACFY |
| 廠商： | Gennum Corporation |
| 元件分類： | Codec |
| 英文描述： | GENLINX -TM II GS9023A Embedded Audio CODEC |
| 中文描述： | GENLINX -商標二GS9023A嵌入式音頻編解碼器 |
| 文件頁數： | 11/37頁 |
| 文件大小： | 318K |
| 代理商： | GS9023ACFY |
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GENNUM CORPORATION
19795 - 6
2.1.7 Audio Data Packets
The GS9023A can multiplex up to four audio channels. The
channels are selectable via the “CHACT(4-1)” bits of Host
Interface Register #1h. The audio group (Audio packet data
ID) for each device is configured in “AD20ID[3:0]” of Host
Interface Register #3h. On power up, the four audio
channels and audio group 1 are selected by default.
By setting all the “CHACT(4-1)” bits in Host Interface
Register #1h to zero, the GS9023A will be in bypass mode
whereby any existing audio data packets, with the same
audio group ID or otherwise, will pass through the device
unchanged and no new audio data packets will be
embedded.
NOTE: Do not rely on default value. Reprogram on power
up or reset.
The “CASCADE” bit in Host Interface Register #4h controls
the manner in which multiplexing is performed. When
“CASCADE” is LOW, the GS9023A deletes all existing
ancillary packets. New packets are multiplexed at the first
location after the end of active video (EAV) in the horizontal
ancillary space (HANC). See Figure 2.
When “CASCADE” is HIGH, the GS9023A multiplexes
packets at the first free location in the horizontal ancillary
(HANC) space after the end of active video (EAV) if there is
sufficient space remaining to insert the packet. The
GS9023A does not check if existing audio group samples
are present in the video signal. Use caution in applications
where the video signal contains existing audio packets to
avoid adding identical group samples. See Figure 3.
The GS9023A assumes that the ancillary space from the
first free location is empty to the start of active video (SAV).
Existing ancillary data packets (inserted by previous
devices) in the video signal must be contiguous from the
beginning of the HANC space or the insertion of a new
audio data packet may overwrite existing data. See Figure
4.
Figure 2
Figure 3
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Video Signal before GS9023A
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Video Signal after GS9023A Insertion of Audio Group 1 ("CASCADE" = LOW)
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Video Signal before GS9023A
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Video Signal after GS9023A Insertion of Audio Group 3 ("CASCADE" = HIGH)
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相關PDF資料 |
PDF描述 |
|---|---|
| GS9023 | Embedded Audio CODEC |
| GS9023-CFY | Aluminum Electrolytic Radial Leaded Bi-Polar Capacitor; Capacitance: 100uF; Voltage: 63V; Case Size: 12.5x20 mm; Packaging: Bulk |
| GS9024 | Automatic Cable Equalizer |
| GS9024-CKB | Automatic Cable Equalizer |
| GS9024-CTB | Automatic Cable Equalizer |
相關代理商/技術參數 |
參數描述 |
|---|---|
| GS9023ACFYE3 | 制造商:Semtech Corporation 功能描述:Audio Codec 4ADC / 4DAC 24-Bit 100-Pin LQFP |
| GS9023B | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Embedded Audio CODEC |
| GS9023BCVE3 | 功能描述:IC AUDIO CODEC 100PIN TQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標準包裝:2,500 系列:- 類型:立體聲音頻 數據接口:串行 分辨率（位）:18 b ADC / DAC 數量:2 / 2 三角積分調變:是 S/N 比，標準 ADC / DAC (db):81.5 / 88 動態范圍，標準 ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應商設備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
| GS9023-CFY | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Embedded Audio CODEC |
| GS9024 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Automatic Cable Equalizer |
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