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參數資料
型號： UCB1400
廠商： NXP Semiconductors N.V.
元件分類： Codec
英文描述： Audio codec with touch screen controller and power management monitor
中文描述： 音頻編解碼器與觸摸屏控制器和電源管理監控
文件頁數： 23/63頁
文件大小： 674K
代理商： UCB1400
Philips Semiconductors
UCB1400
Audio codec with touch screen controller
and power management monitor
Product data
Rev. 02 — 21 June 2002
23 of 63
9397 750 09611
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
9.2.3
Filter stream DAC
The FSDAC is a semi-digital reconstruction filter that converts the 1-bit data stream of
the noise shaper to an analog output voltage. The filter coefficients are implemented
as current sources and are summed at virtual ground of the output operational
amplifier. In this way, very high signal-to-noise performance and low clock jitter
sensitivity is achieved. A post-filter is not needed due to the inherent filter function of
the DAC. On-board amplifiers convert the FSDAC output current to an output voltage
signal capable of driving a line output. The output voltage of the FSDAC scales
proportionally with the power supply voltage.
9.2.4
Headphone driver
The headphone driver a reference output that acts as the virtual ground. This allows
direct connection to a stereo headphone without the use of external DC blocking
capacitors. The headphone driver is enabled when HPEN is set to ‘1’ in the
Feature Control/Status Register 1 (0x6A).
The headphone driver is equipped with a short circuit protection on each of the
LINE_OUT_L, LINE_OUT_R and VREFDRV output. When HPEN = 1, the short
circuit protection circuit will inform the user in case the limiter is activated, e.g., in
case of short circuit, by setting the corresponding bit (CLPL, CLPR or CLPG) in the
Extra Interrupt register (0x70). In addition, an interrupt is generated on the IRQOUT
pin of UCB1400 whenever the CLPP or CLPN bit is set in the Positive and/or
Negative INT Enable Registers. In that case, the CPLS bit will be set in the
INT Clear/Status register (index 0x62). The user can subsequently examine the
Extra Interrupt register (0x70) to determine the source of the short circuit.
Fig 16. Headphone connections.
UCB1400
LINE_OUT_L
VREFDRV
LINE_OUT_R
SN00228
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相關代理商/技術參數
參數描述
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
UCB1400BE,157 功能描述:接口—CODEC DO NOT USE ORDER -S OR -T PART 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
UCB1400BEFE 功能描述:IC AUDIO CODEC W/TCH SCRN 48LQFP 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)
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