- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373862 > AD1954 (Analog Devices, Inc.) CONNECTOR COAXIAL BNC PDF資料下載
參數(shù)資料
| 型號(hào)： | AD1954 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | CONNECTOR COAXIAL BNC |
| 中文描述： | SigmaDSP的⑩3通道，26位DAC的信號(hào)處理 |
| 文件頁(yè)數(shù)： | 20/36頁(yè) |
| 文件大?。?/td> | 1470K |
| 代理商： | AD1954 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)當(dāng)前第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)
AD1954
–20–
Table II. SPI Port Address Decoding
SPI Address
0–255
Register Name
Parameter RAM
Read/Write Word Length
Write: 22 Bits
Read: 22 Bits
Write: 11 Bits
Read: 2 Bits
Write: 9 Bits
Read: N/A
Write: 22 Bits
Read: N/A
Write: 22 Bits
Read: N/A
Write: 22 Bits
Read: N/A
Write: 9-Bit Program Counter Value, 2-Bit Register Address
Read: 24 Bits
Write: 9-Bit Program Counter Value, 2-Bit Register Address
Read: 24 Bits
Write: 9-Bit Program Counter Value, 2-Bit Register Address
Read: N/A
Write: 9-Bit Program Counter Value, 2-Bit Register Address
Read: N/A
Write: 8-Bit Parameter RAM Address, 22-Bit Parameter Data
Read: N/A
Write: 8-Bit Parameter RAM Address, 22-Bit Parameter Data
Read: N/A
Write: 8-Bit Parameter RAM Address, 22-Bit Parameter Data
Read: N/A
Write: 8-Bit Parameter RAM Address, 22-Bit Parameter Data
Read: N/A
Write: 8-Bit Parameter RAM Address, 22-Bit Parameter Data
Read: N/A
256
SPI Control Register 1
257
SPI Control Register 2
258
Volume Left
259
Volume Right
260
Volume Sub
261
Data Capture (SPI Out) #1
262
Data Capture (SPI Out) #2
263
Data Capture (Serial Out) Left
264
Data Capture (Serial Out) Right
265
Parameter RAM Safe Load Register 0
266
Parameter RAM Safe Load Register 1
267
Parameter RAM Safe Load Register 2
268
Parameter RAM Safe Load Register 3
269
Parameter RAM Safe Load Register 4
270–510
511
Unused
Test Register
Write: 8 Bits
Read: N/A
Write: 35 Bits
Read: 35 Bits
512–1024
Program RAM
SPI Address Decoding
Table II shows the address decoding used in the SPI port. The
SPI address space encompasses a set a registers and two RAMs,
one for holding signal processing parameters and one for hold-
ing the program instructions. Both of the RAMs are loaded on
power-up from on-board boot ROMs.
Control Register 1
Control Register 1 is an 11-bit register that controls data capture,
serial modes, de-emphasis, mute, power-down, and SPI-to-
memory transfers. Table III documents the contents of this register.
Table IV details the two bits in the register’s read operation.
Bits 1:0 set the word length, which is used in right-justified serial
modes to determine where the MSB is located relative to the start
of the audio frame.
Bits 3:2 select one of four serial modes, which are discussed in
the Serial Data Input Port section.
The de-emphasis curve selection Bits 5:4 turn on the internal
de-emphasis filter for one of three possible sample rates.
Bit 6, the soft power-down bit, stops the internal clocks to the DSP
core, but does not reset the part. The digital power consumption
is reduced to a low level when this bit is asserted. Reset can only
be asserted using the external reset pin.
Soft mute (Bit 7) is used to initiate a volume ramp-down sequence.
If the initial volume was set to 1.0, this operation will take 512
audio frames to complete. When this bit is de-asserted, a ramp-up
sequence is initiated until the volume returns to its original setting.
When set, Bit 8 enables the DCSOUT pin. This must be set in
order to read from the data capture serial out registers.
REV. A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD1954YS | RESISTOR |
| AD1954YSRL | 16-bit fixed point DSP with Flash |
| AD1954YST | RESISTOR |
| AD1954YSTRL | Hook-Up Wire; Conductor Size AWG:12; No. Strands x Strand Size:65 x 30; Jacket Color:Yellow; Approval Bodies:UL, CSA; Approval Categories:UL AWM Style 1015, CSA Type TEW, JQA-F-, Passes VW-1 Flame Test; Conductor Material:Copper RoHS Compliant: Yes |
| AD1954YSTRL7 | 16-bit fixed point DSP with Flash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD1954YS | 制造商:Analog Devices 功能描述:DAC 3-CH Delta-Sigma 24-bit 44-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:THREE CHANNEL, 24-BIT SIGMADSP DAC - Bulk |
| AD1954YSRL | 制造商:Analog Devices 功能描述:DAC 3-CH Delta-Sigma 24-bit 44-Pin MQFP T/R |
| AD1954YST | 制造商:Analog Devices 功能描述:DAC 3-CH Delta-Sigma 24-bit 48-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:THREE CHANNEL, 24-BIT SIGMADSP DAC - Tape and Reel |
| AD1954YSTRL | 制造商:Analog Devices 功能描述:DAC 3-CH Delta-Sigma 24-bit 48-Pin LQFP T/R |
| AD1954YSTRL7 | 制造商:AD 制造商全稱:Analog Devices 功能描述:SigmaDSP⑩ 3-Channel, 26-Bit Signal Processing DAC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。