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| 型號： | AD1954YSRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | 16-bit fixed point DSP with Flash |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP44 |
| 封裝： | MO-112AB, MQFP-44 |
| 文件頁數(shù)： | 20/36頁 |
| 文件大小： | 1470K |
| 代理商： | AD1954YSRL |
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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
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| 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 |
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| 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 |
| AD1954YSTZ | 功能描述:IC DAC AUDIO 3CHAN 26BIT 48LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:SigmaDSP® 標(biāo)準(zhǔn)包裝:1 系列:- 設(shè)置時間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| AD1954YSTZRL | 功能描述:IC DAC AUDIO 3CHAN 26BIT 48LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:SigmaDSP® 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
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