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參數資料
| 型號： | UCB1300 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Advanced modem/audio analog front-end |
| 中文描述： | 先進的調制解調器/音頻模擬前端 |
| 文件頁數： | 38/56頁 |
| 文件大小： | 1022K |
| 代理商： | UCB1300 |
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1999 Jul 20
38
Philips Semiconductors
Preliminary specification
Advanced modem/audio analog front-end
UCB1300
CODEC DATA TRANSFER INTO THE
UCB1300
Both the audio and the telecom data is transferred within the SIB frame (bit 11-0 and bit 47-32). This data is accompanied
by two data valid flags (bit 30: audio data valid, bit 31: telecom data valid). The codec data in the SIB frames is only
processed in the UCB1300 if the appropriate data valid flag is set in the frame; the data is discarded when the data flag
equals ‘0’. Figure 32 shows the basic codec data synchronization principle used in the UCB1300.
Figure 32 shows that audio and telecom data is made available for the codec up sample filters during the 64th bit in the
SIB frame. This implies that the codec data has to be transferred in one of the SIB frames preceding the codec sample
moment.
Note: If the programmed divisor equals a multiple of 4, the codec data transfer is synchronized to the SIB frame repetition
rate (e.g. AUD_DIV[n] = 8
1 sample is needed in 2 SIB frames, AUD_DIV[n] = 12
1 sample is needed in 3 SIB
frames, etc.).
Fig.32 Codec input path data synchronization principle.
DFF
DFF
input
latch
input
latch
&
&
UPSAMPLE FILTERS
SIB INTERFACE
SIBCLK
SIBDIN
SIBSYNC
6
audio data[n]
audio_data_valid
telecom data[n]
telec_data_valid
bit64
fsa
fst
相關PDF資料 |
PDF描述 |
|---|---|
| UCB1300BE | Advanced modem/audio analog front-end |
| UCB1400BE | Audio codec with touch screen controller and power management monitor |
| UCB1400 | Audio codec with touch screen controller and power management monitor |
| UCB1500 | PCI to AC97 bridge/host controller |
| UCC1913D | Very low drop voltage regulators with inhibit |
相關代理商/技術參數 |
參數描述 |
|---|---|
| UCB1300BE | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Advanced modem/audio analog front-end |
| UCB1400 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Audio codec with touch screen controller and power management monitor |
| UCB1400BE | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Audio codec with touch screen controller and power management monitor |
| UCB1400BE,128 | 功能描述:接口—CODEC AUDIO CODEC WITH TOUCHSCREEN RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| UCB1400BE,151 | 功能描述:接口—CODEC AUDIO CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
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