- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369952 > PCM1796 24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER PDF資料下載
參數(shù)資料
| 型號： | PCM1796 |
| 元件分類： | DAC |
| 英文描述： | 24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER |
| 中文描述： | 24位192千赫采樣高級分段音頻立體聲數(shù)模轉(zhuǎn)換器 |
| 文件頁數(shù)： | 19/57頁 |
| 文件大?。?/td> | 512K |
| 代理商： | PCM1796 |
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頁當(dāng)前第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
SLES100 DECEMBER 2003
www.ti.com
19
SERIAL CONTROL INTERFACE
The PCM1796 supports SPI and I
2
C that sets mode control registers as shown in Table 4. This serial control interface
is selected by MSEL (pin 3), SPI is activated when MSEL is set to LOW, and I
2
C is activated when MSEL is set to
HIGH.
SPI Interface
The SPI interface is a 4-wire synchronous serial port that operates asynchronously to the serial audio interface and
the system clock (SCK). The serial control interface is used to program and read the on-chip mode registers. The
control interface includes MDO (pin 13), MDI (pin 11), MC (pin 12), and MS (pin 10). MDO is the serial data output,
used to read back the values of the mode registers; MDI is the serial data input, used to program the mode registers;
MC is the serial bit clock, used to shift data in and out of the control port, and MS is the mode control enable, used
to enable the internal mode register access.
Register Read/Write Operation
All read/write operations for the serial control port use 16-bit data words. Figure 28 shows the control data word
format. The most significant bit is the read/write (R/W) bit. For write operations, the R/W bit must be set to 0. For
read operations, the R/W bit must be set to 1. There are seven bits, labeled IDX[6:0], that hold the register index (or
address) for the read and write operations. The least significant eight bits, D[7:0], contain the data to be written to,
or the data that was read from, the register specified by IDX[6:0].
Figure 29 shows the functional timing diagram for writing or reading the serial control port. MS is held at a logic 1
state until a register needs to be written or read. To start the register write or read cycle, MS is set to logic 0. Sixteen
clocks are then provided on MC, corresponding to the 16 bits of the control data word on MDI and readback data
on MDO. After the eighth clock cycle has completed, the data from the indexed-mode control register appears on
MDO during the read operation. After the sixteenth clock cycle has completed, the data is latched into the
indexed-mode control register during the write operation. To write or read subsequent data, MS must be set to 1 once.
MSB
LSB
Register Index (or Address)
Register Data
R/W
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
D7
D6
D4
D5
D3
D2
D1
D0
Figure 28. Control Data Word Format for MDI
High Impedance
When Read Mode is Instructed
A0
D7
D6
D4
D5
D3
D2
D1
D0
D7
D6
D4
D5
D3
D2
D1
D0
R/W
A1
A2
A3
A4
A5
A6
MS
MC
MDI
MDO
NOTE: Bit 15 is used for selection of write or read. Setting R/W = 0 indicates a write, while R/W = 1 indicates a read. Bits 148 are used for the register
address. Bits 7–0 are used for register data.
Figure 29. Serial Control Format
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCM1796DBR | 24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER |
| PCM2900EG4 | STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE ENDED ANALOG INPUT/OUTPUT AND S/PDIF |
| PCM2902EG4 | STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE ENDED ANALOG INPUT/OUTPUT AND S/PDIF |
| PCM3002EG | 16/20-BIT SINGLE-ENDED ANALOG INPUT/OUTPUT STEREO AUDIO CODECS |
| PCM3002EG4 | 16/20-BIT SINGLE-ENDED ANALOG INPUT/OUTPUT STEREO AUDIO CODECS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCM1796_06 | 制造商:BB 制造商全稱:BB 功能描述:24-BIT, 192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL-TO-ANALOG CONVERTER |
| PCM1796DB | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24 bit 192kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1796DB | 制造商:Texas Instruments 功能描述:24BIT AUDIO DAC SMD 1796 SSOP28 |
| PCM1796DBG4 | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24 bit 192kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1796DBR | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24 bit 192kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。