參數(shù)資料
型號(hào)： TSC2300IPAGRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝： GREEN, PLASTIC, TQFP-64
文件頁(yè)數(shù)： 54/83頁(yè)
文件大?。?/td> 1268K
代理商： TSC2300IPAGRG4
www.ti.com
Issue Interrupt
KBIRQ
Start Clock
Store Keypad scan
results in KPData
Register
Keypad
Touch
Turn off clock
Reset KBIRQ and Scan
Trigger
Done
Scan and
debounce keys
Keypad Scan
KBIRQ Initiated
TSC2300
SLAS372 — NOVEMBER 2002
The TSC2300 contains a keypad interface which is suitable for use with matrix keypads up to 4 x 4 keys. A control
register, the keypad control register, is used to set the scan rate for the keypad and de-bounce times. There is also a
keypad mask register which allows certain keys to be masked from being read, or from causing the TSC2300 to detect
a key-press on selected keys. The results of keypad scans are placed in the keypad data register.
When a key-press is detected by the TSC2300, it automatically scans the keypad and de-bounces the key-press. It
then drives KBIRQ low. All keys pressed at the time of the scan are then reflected in the keypad data register. This
mode is shown in Figure 73.
Figure 73. Keypad Scan Initiated by Keypress.
AUDIO CODEC
Audio Analog I/O
The TSC2300 has one pair of stereo inputs, LLINEIN and RLINEIN, and one mono audio input, MICIN. The part also
has one pair of stereo line outputs capable of driving a 10-k
load, VOUTL and VOUTR, as well as a stereo
headphone output amplifier capable of driving a 16-
load at up 30 mW/channel, HPL HPR. Finally, the part includes a
differential mono output capable of driving a 10-k
load per side, MONO+ and MONO-.
A special circuit has also been included for inserting a keyclick sound into the analog output signal path based on
register control. This functionality is intended for generating keyclick sounds for user feedback. This function is
controlled by Reg 04h, Pg 2, and is available when either of the DAC or analog bypass paths are enabled.
58
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TSC2301 制造商:TI 制造商全稱:Texas Instruments 功能描述:PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC
TSC2301EVM 功能描述:觸摸傳感器開發(fā)工具 TSC2301 Eval Mod RoHS:否 制造商:Cypress Semiconductor 工具用于評(píng)估: 接口類型: 工作電壓: 最大工作溫度:
TSC2301IGQZ 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
TSC2301IGQZR 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
TSC2301IPAG 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
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