- 您現在的位置：買賣IC網 > PDF目錄98302 > TSC2301IPAG (TEXAS INSTRUMENTS INC) SPECIALTY CONSUMER CIRCUIT, PQFP64 PDF資料下載
參數資料
| 型號： | TSC2301IPAG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數： | 85/95頁 |
| 文件大小： | 1322K |
| 代理商： | TSC2301IPAG |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁當前第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁
www.ti.com
TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
AUDIO CLOCK CONFIGURATION REGISTER (Page 02, Address 1Bh)
This register allows the user to use the output of the crystal oscillator as MCLK, and receive the PLL output on
the PENIRQ pin.
Bit 15 Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
MSB
LSB
X
PLPN
COMK
X
Bits [15:4] — RESERVED
These bits are reserved, and should be written to 040h. If read, they read back as 040h.
Bits 3 — PLPN
Output PLL on the PENIRQ pin. This bit allows the user to receive the output of the audio codec internal PLL.
This bit is provided so the host processor can use the output of the PLL, to generate its I2S signals in sync with
an external MCLK or crystal oscillator. Writing a 1 to this bit connects the output of the PLL to the PENIRQ pin.
Otherwise, the PENIRQ pin operates as normal. The user must take care in using this function, as PENIRQ
signals are overridden.
Table 58. Output PLL on PENIRQ Pin
DEEMP
Description
0
PENIRQ operates as normal (default).
1
Output PLL on PENIRQ.
Bits 2 — COMK
Crystal Oscillator as MCLK. This bit allows the user to use the output of the internal crystal oscillator as the
MCLK for the audio codec. In this case, the MLCK pin must be grounded. In this case, the output of the crystal
oscillator replaces MCLK in all functions.
Table 59. Crystal Oscillator as MCLK
DEEMP
Description
0
Crystal oscillator and MCLK operates as normal (default).
1
Use crystal oscillator output as MCLK.
Bits [1:0] — RESERVED
These bits are reserved, and must be written to 0. If read, they read back as 0.
LAYOUT
The following layout suggestions provide optimum performance from the TSC2301. However, many portable
applications have conflicting requirements concerning power, cost, size, and weight. In general, most portable
devices have fairly clean power and grounds because most of the internal components are very low power. This
situation means less bypassing for the converter power and less concern regarding grounding. Still, each
situation is unique and the following suggestions should be reviewed carefully.
For optimum performance, care must be taken with the physical layout of the TSC2301 circuitry. The basic SAR
architecture is sensitive to glitches or sudden changes on the power supply, reference, ground connections, and
digital inputs that occur just prior to latching the output of the analog comparator. Therefore, during any single
conversion for an n-bit SAR converter, there are n windows in which large external transient voltages can easily
affect the conversion result. Such glitches might originate from switching power supplies, nearby digital logic, and
high power devices. The degree of error in the digital output depends on the reference voltage, layout, and the
exact timing of the external event. The error can change if the external event changes in time with respect to the
internal conversion clock. The touch screen circuitry, as well as the audio headphone amplifiers, uses the
HPVDD/HPGND supplies for its power, and any noise on this supply may adversely affect performance in these
blocks.
86
相關PDF資料 |
PDF描述 |
|---|---|
| TSC2301IGQZR | SPECIALTY CONSUMER CIRCUIT, PBGA120 |
| TSC2301IGQZ | SPECIALTY CONSUMER CIRCUIT, PBGA120 |
| TSC2301IZQZR | SPECIALTY CONSUMER CIRCUIT, PBGA120 |
| TSC2301IZQZ | SPECIALTY CONSUMER CIRCUIT, PBGA120 |
| TSC2301IPAGG4 | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TSC2301IPAGG4 | 功能描述:觸摸屏轉換器和控制器 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 數據速率: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 |
| TSC2301IPAGR | 功能描述:觸摸屏轉換器和控制器 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 數據速率: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 |
| TSC2301IPAGRG4 | 功能描述:觸摸屏轉換器和控制器 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 數據速率: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 |
| TSC2301IZQZ | 功能描述:觸摸屏轉換器和控制器 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 數據速率: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 |
| TSC2301IZQZR | 功能描述:觸摸屏轉換器和控制器 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 數據速率: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 |
發布緊急采購，3分鐘左右您將得到回復。