- 您現在的位置：買賣IC網 > PDF目錄98252 > TLV320AIC14I (TEXAS INSTRUMENTS INC) SPECIALTY CONSUMER CIRCUIT, PDSO30 PDF資料下載
參數資料
| 型號： | TLV320AIC14I |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO30 |
| 封裝： | PLASTIC, TSSOP-30 |
| 文件頁數： | 17/54頁 |
| 文件大小： | 450K |
| 代理商： | TLV320AIC14I |
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頁當前第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
3–11
3.8
Smart Time Division Multiplexed Serial Port (SMARTDM)
The SMART time division multiplexed serial port (SMARTDM) uses the 4 wires of DOUT, DIN, SCLK, and FS to
transfer data into and out of the AIC14. The TLV320AIC14s SMARTDM supports three serial interface configurations
(see Table 3–2): stand-alone master, stand-alone slave, and master-slave cascade, employing a time division
multiplexed (TDM) scheme (a cascade of only-slaves is not supported). The SMARTDM allows for a serial connection
of up to 16 codecs to a single serial port. Data communication in these three serial interface configurations can be
carried out in either standard operation (default) or turbo operation. Each operation has two modes; programming
mode (default mode) and continuous data transfer mode. To switch from the programming mode to the continuous
data transfer mode, set bit D6 of control register 1 to 1, which resets after switching back to programming mode. The
TLV320AIC14 can be switched back from the continuous data transfer mode to the programming mode by setting
the LSB of the data on DIN to 1, only if the data format is (15+1), as selected by bit 0 of control register 1. The
SMARTDM automatically adjusts the number of time slots per frame sync (FS) to match the number of codecs in the
serial interface so that no time slot is wasted. Both the programming mode and the continuous data transfer mode
of the TLV320AIC14 are compatible with the TLV320AIC10. The TLV320AIC14 provides primary/secondary
communication and continuous data transfer with improvements and eliminates the requirements for hardware and
software requests for secondary communication as seen in the TLV320AIC10. The TLV320AIC14 continuous data
transfer mode now supports both master/slave stand-alone and cascade.
Table 3–2. Serial Interface Configurations
TLV320AIC14
M/S PIN
FSD PIN
COMMENTS
TLV320AIC14
CONNECTIONS
MASTER
SLAVE
MASTER
SLAVE
COMMENTS
Stand-alone master
High
NA
Pull high
NA
Stand-alone slave
NA
Low
NA
Pull-low
Master-slave cascade
High
Low
Connect to the next slave’s FS
(see Figure 3–7)
Last slave’s FSD pin is pulled high
Slave-slave cascade
NA
Not supported
3.8.1
Programming Mode
In the programming mode, the FS signal starts the input/output data stream. Each period of FS contains two frames
as shown in Figures 3–13 and 3–14: data frame and control frame. The data frame contains data transmitted from
the ADC or to the DAC. The control frame contains data to program the AIC14s control registers. The SMARTDM
automatically sets the number of time slots per frame equal to 2 times the number of AIC14 codecs in the interface.
Each time slot contains 16-bit data. The SCLK is used to perform data transfer for the serial interface between the
AIC14 codecs and the DSP. The frequency of SCLK varies depending on the selected mode of serial interface. In
the stand-alone mode, there are 32 SCLKs (or two time slots) per sampling period. In the master-slave cascade
mode, the number of SLCKs equals 32x(Number of codecs in the cascade). The digital output data from the ADC
is taken from DOUT. The digital input data for the DAC is applied to DIN. The synchronization clock for the serial
communication data and the frame-sync is taken from SCLK. The frame-sync signal that starts the ADC and DAC
data transfer interval is taken from FS. The SMARTDM also provides a turbo mode, in which the FS’s frequency is
always the device’s sampling frequency, but SCLK is running at a much higher speed. Thus, there are more than 32
SCLKs per sampling period, in which the data frame and control frame occupy only the first 32 SCLKs from the falling
edge of the frame-sync FS (also see Section 3.6 for more details).
相關PDF資料 |
PDF描述 |
|---|---|
| TLV320AIC22PT | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TLV320AIC22PTR | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TLV320AIC23BGQE | SPECIALTY CONSUMER CIRCUIT, PBGA80 |
| TLV320AIC23BIGQE | SPECIALTY CONSUMER CIRCUIT, PBGA80 |
| TLV320AIC23BIPW | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV320AIC14IDBT | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band 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 |
| TLV320AIC14IDBT-1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| TLV320AIC14IDBTG4 | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band 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 |
| TLV320AIC14IDBTR | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band 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 |
| TLV320AIC14IDBTRG4 | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band 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 |
發布緊急采購，3分鐘左右您將得到回復。