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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： | 29/63頁 |
| 文件大?。?/td> | 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
29 of 63
9397 750 09611
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
In addition to the measurements made above, the touch screen can also act as an
interrupt source. In this mode, the X plate of the touch screen has to be powered, and
the Y plate has to be grounded. In this case, the touch screen is not biased by the
active touch screen bias circuit, but by a resistor to AV
DD
. This configuration simply
biases the touch screen and the UCB1400 does not consume power unless the touch
screen is touched. The voltage on the X plate terminals drops if the screen is
pressed. This voltage drop is detected by Schmitt trigger circuits, of which the outputs
are connected to the interrupt control block. A touch screen interrupt is generated
either when the touch screen is pressed (falling edge enabled) or when the touch
screen is released (rising edge enabled), which can be used to activate the system
around the UCB1400 to start a touch screen readout sequence. The internal Schmitt
trigger circuits are connected to the TSPX and TSMX signals after the built-in
low-pass filters. This reduces the number of spurious interrupts, due to the coupling
between the LCD screen and the touch screen sensors.
10.2.5
Mode summary
[1]
For X and Y position measurements, (PXP, PXG, PYP, PYG) can be swapped with (MXP, MXG, MYP, MYG) to get readings reversed in
direction.
For pressure measurements, (PXP, PXG, PYP, PYG) can be swapped with (MXP, MXG, MYP, MYG) to get the same readings with
current flowing in the opposite direction.
[2]
Table 9:
Touch screen
measurement
X position
[1]
Y position
[1]
Pressure - 1
[2]
Pressure - 2
[2]
Pressure - 3
[2]
Pressure - 4
[2]
Pressure - 5
[2]
X plate resistance
Y plate resistance
Interrupt
Measurement mode summary
PXP
PXG
MXP
MXG
PYP
PYG
MYP
MYG
BIAS
TM
AI
1
0
1
1
0
0
0
1
0
1
0
0
0
0
0
0
1
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
0
0
1
0
0
1
0
0
0
1
0
0
1
0
0
0
1
0
0
0
1
1
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
1
1
0
0
1
0
0
1
1
1
1
1
1
1
1
1
1
1
0
2
2
1
1
1
1
1
1
1
0
2 or 3
0 or 1
Any
Any
Any
Any
Any
Any
Any
Any
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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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