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| 型號： | AD1833 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | Multichannel 24-Bit, 192 kHz, DAC |
| 中文描述： | SERIAL INPUT LOADING, 24-BIT DAC, PQFP48 |
| 封裝： | PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 419K |
| 代理商： | AD1833 |
REV. 0
AD1833
–8–
FUNCTIONAL DESCRIPTION
Device Architecture
The AD1833 is a 6-channel audio DAC featuring multibit
Sigma-Delta (
Σ
-
) technology. The AD1833 features three
stereo converters (giving six channels) where each stereo channel
is controlled by a common bit-clock (BCLK) and synchroniza-
tion signal (L/
R
CLK).
Interpolator
The interpolator consists of up to three stages of sample rate
doubling and half-band filtering followed by a 16 sample zero
order hold. The sample rate doubling is achieved by zero stuff-
ing the input samples, and a digital half band filter is then used
to remove any images above the band of interest and to bring
the zero samples to their correct values.
By selecting different input sample rates, one, two, or all three
stages of doubling may be switched in. This allows for three
different sample rate inputs. All three doubling stages are used
with the 48 kHz input sample rate, with the 96 kHz input sample
rate only two doubling stages are used, and with the 192 kHz
input sample rate only one doubling stage is used. In each case
the input sample frequency is increased to 384 kHz. The Zero-
Order Hold (ZOH) holds the interpolator samples for upsampling
by the modulator. This is done at a rate 16 times the interpola-
tor output sample rate.
Modulator
The modulator is a 6-bit, second-order implementation and
uses data scrambling techniques to achieve perfect linearity.
The modulator samples the output of the interpolator stage(s) at
a rate of 6.144 MHz.
OPERATING FEATURES
SPI Register Definitions
The SPI port allows flexible control of the devices’ program-
mable functions. It is organized around nine registers; six
individual channel VOLUME registers and three CONTROL
registers. Each WRITE operation to the AD1833 SPI control
port requires 16 bits of serial data in MSB-first format. The four
most significant bits are used to select one of nine registers (seven
register addresses are reserved), and the bottom 10 bits are then
written to that register. This allows a write to one of the nine
registers in a single 16-bit transaction. The SPI CCLK signal is
used to clock in the data. The incoming data should change on
the falling edge of this signal and remain valid during the rising
edge. At the end of the 16 CCLK periods, the CLATCH signal
should rise to latch the data internally into the AD1833. See
Figure 2.
The serial interface format used on the Control Port utilizes a
16-bit serial word as shown in Table I. The 16-bit word is divided
into several fields: Bits 15–12 define the register address,
Bits 11 and 10 are reserved and must be programmed to 0,
and Bits 9–0 are the data field (which has specific definitions,
depending on the register selected).
Table I. Control Port Map
Register Address
Reserved
1
Data Field
15
2
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
NOTES
1
Must be programmed to zero.
2
Bit 15 = MSB
Bit 15
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Bit 14
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Bit 13
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Bit 12
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Register Function
DAC Control I
DAC Control II
DAC Volume 1
DAC Volume 2
DAC Volume 3
DAC Volume 4
DAC Volume 5
DAC Volume 6
DAC Control III
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
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PDF描述 |
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| AD1833AST | Multichannel 24-Bit, 192 kHz, DAC |
| AD1835 | 2 ADC, 8 DAC, 96 kHz, 24-Bit Codec |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD1833A | 制造商:AD 制造商全稱:Analog Devices 功能描述:24-Bit, 192 kHz, DAC |
| AD1833AAST | 制造商:Rochester Electronics LLC 功能描述:6 CHANNEL 24 BIT 192 KHZ DAC I.C. - Bulk 制造商:Analog Devices 功能描述:IC 24BIT DAC SMD 1833 LQFP48 |
| AD1833AAST-REEL | 制造商:Analog Devices 功能描述:DAC 6-CH Delta-Sigma 24-bit 48-Pin LQFP T/R 制造商:Rochester Electronics LLC 功能描述:6 CHANNEL 24 BIT 192 KHZ DAC I.C. - Tape and Reel |
| AD1833AASTZ | 功能描述:IC DAC AUDIO 24BIT 6CH 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:- 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 |
| AD1833AASTZKL1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
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