參數(shù)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(jiān)控
文件頁數(shù)： 31/63頁
文件大?。?/td> 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
31 of 63
9397 750 09611
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
When ASE is ‘1’, the ADC is started at a rising edge of the signal applied to the
ADCSYNC pin. In this mode, writing ‘1’ to the AS bit will arm the ADC, such that it will
start in the first detected rising edge of the ADCSYNC signal. A rising edge of the
signal connected to the ADCSYNC pin occurring during the tracking time is ignored;
the ADC conversion is started on the first rising edge detected after this delay time.
This mode is particularly useful when the internal ADC has to be synchronized to the
external system. Note that the AVE bit should not be set to ‘1’ when ASE is ‘1’.
The result of the conversion is stored in the ADC Data register (0x68), after the
completion of the conversion. An interrupt may be generated whenever a conversion
is completed (ADCP and/or ADCN bits in the Positive and Negative INT Enable
registers) to ease the synchronization between the UCB1400 and the system
controller. The ADV bit in the ADC Data register 0x68 indicates the status of the ADC
data; it equals ‘0’ when an ADC sequence is started, which implies that the ADC
result is not valid, and it equals ‘1’ when the ADC conversion is completed and the
result is stored in the ADC Data register (0x68).
The applied voltage on the four analog inputs of the UCB1400 (AD0-AD3) is
attenuated before it is applied to the ADC input multiplexer using on-chip resistive
dividers. These high voltage inputs are optimized to handle voltages larger than the
used supply voltage. The built-in resistive voltage dividers are only activated if the
corresponding analog input is selected. The resistive dividers are made floating when
the input is not selected by the ADC input multiplexer, such that the input leakage of
these high voltage analog pins is minimized. This makes these analog inputs very
suitable to monitor battery voltages.
11.1 On-chip reference circuit
The UCB1400 contains an on-chip reference voltage source, which generates the
reference voltage for the 10-bit ADC and touch screen bias. The internal bandgap
circuit is activated if the 10-bit ADC or touch screen function is activated. This
reduces the current consumption of the UCB1400 in standby mode.
The internal reference voltage is connected to the VREFBYP pin, where an external
capacitor can be connected to filter this reference voltage, if the VREFB bit (register
0x66) is set to ‘1’.
Fig 23. AD0-AD3 resistive dividers block diagram.
AD[n]
ADC
INPUT
MUX
AI[2:0]
SN00241
相關PDF資料
PDF描述
UCB1500 PCI to AC97 bridge/host controller
UCC1913D Very low drop voltage regulators with inhibit
UCC1913DTR Analog IC
UCC1913J Very low drop voltage regulators with inhibit
UCC1913N Very low drop voltage regulators with inhibit
相關代理商/技術參數(shù)
參數(shù)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(shù)量:2 DAC 數(shù)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(shù)量:2 DAC 數(shù)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(shù)量:2 DAC 數(shù)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(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標準 ADC / DAC (db):81.5 / 88 動態(tài)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(shù)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)
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*