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參數資料
| 型號： | UCB1400BE |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | Audio codec with touch screen controller and power management monitor |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 X 1.40 MM, PLASTIC, LQFP-48 |
| 文件頁數： | 25/63頁 |
| 文件大小： | 674K |
| 代理商： | UCB1400BE |
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Philips Semiconductors
UCB1400
Audio codec with touch screen controller
and power management monitor
Product data
Rev. 02 — 21 June 2002
25 of 63
9397 750 09611
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
10. Touch screen interface
10.1 Universal touch screen matrix
The UCB1400 contains a universal touch screen interface for 4-wire resistive touch
screen, capable of performing position, pressure and plate resistance
measurements. In addition, the touch screen can be programmed to generate
interrupts when the touch screen is pressed. The last mode is also active when the
UCB1400 is set in the stand-by mode.
The touch screen interface connects to the touch screen by four wires: TSPX, TSMX,
TSPY and TSMY. Each of these pins can be programmed to be floating, powered or
grounded in the touch screen switch matrix. The setting of each touch screen pin is
programmable by the PXP, MXP, PYP, MYP and PXG, MYG, PYG, MYG bits in the
touch screen control register. Possible conflicting settings (grounding and powering of
a touch screen pin at the same time) are detected by the UCB1400. In that case, the
UCB1400 will ground the touch screen pin.
Each of the four touch screen signals can be selected as input for the built-in 10-bit
ADC, which is used to determine the voltage on the selected touch screen pin in
position measurement mode. In addition, the UCB1400 can monitor touch screen
current via an internal 1 k
resistor that can act as the input to the 10-bit ADC in
pressure or plate resistance measurement mode. The flexible switch matrix and the
multi-functional touch screen bias circuit enable the user of the UCB1400 to set each
desired touch screen configuration.
Fig 17. Block diagram of the touch screen interface.
SN00246
TSPX
TSMX
TSPY
TSMY
AD[3:0]
AV
SS
1 k
7:4
0
1
2
3
ANALOG MUX
0
1
ANALOG MUX
TOUCH SCREEN
CURRENT MONITOR
AV
DD
TM[1:0]=00
TOUCH SCREEN
BIAS VOLTAGE
AV
SS
BIAS
TM[1:0] = 01
TO ADC INPUT
AI[2:0]
TM[1:0] = 00 OR 1X
PXP, MXP, PYP, MYP
PXG, MXG, PYG, MYG
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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) |
| UCB1400BE-S | 功能描述:接口—CODEC AUDIO CODEC NO NEW DESIGNS 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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