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參數(shù)資料
| 型號： | SM5878 |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | 3rd-order , 2-channel D/A converter |
| 中文描述： | 三階2聲道D / A轉(zhuǎn)換 |
| 文件頁數(shù)： | 14/16頁 |
| 文件大?。?/td> | 143K |
| 代理商： | SM5878 |
SM5878AM/AV
NIPPON PRECISION CIRCUITS—14
Soft Mute (SMUTE)
Soft mute mode is selected when MODE is HIGH.
The up/down counter is switched to internal clock
drive, and soft mute operation is controlled by
MUTE only.
When MUTE goes HIGH, the up/down counter
counts down. The total time to go from 0 to
maximum mute is 1024/fs. This corresponds to
approximately 23.2 ms at fs = 44.1 kHz.
When MUTE is LOW, soft mute is released. The
attenuation counter output counts up, increasing the
gain. The time taken to return to 0 dB is also 1024/fs.
Soft mute operation is shown in figure 2.
Upon system initialization or when MODE changes
state, mute is released, which corresponds to the
maximum gain of 0 dB.
Infinity-Zero (MUTEO)
The SM5878AM/AV outputs an infinity-zero
detection output signal under the following
circumstances.
I
From immediately after a reset input on RSTN
until the initialization cycle finishes and the first
data cycle occurs.
I
When an infinity-zero occurs in the input data.
When an infinity-zero is detected, a period of 2
14
×
(1/fs)
≈
0.37 seconds takes place before
MUTEO goes HIGH.
TIMING DIAGRAMS
Input Timing (DI, BCKI, LRCI)
Figure 2. Soft mute operation example
Gain
MUTE
1024/fs
1024/fs
0 dB
–
Figure 3. MUTEO output timing
1
2
3
8
9
LRCI
DI
RSTN
MUTEO
2 /fs
Signal
Signal
No Signal
Initialize
DI
BCKI
(64fs max)
LRCI
16 bits
16 bits
1/fs
Left channel
Right channel
MSB
LSB
MSB
LSB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SM5878AM | 3rd-order , 2-channel D/A converter |
| SM5878AV | 3rd-order , 2-channel D/A converter |
| SM5879 | 3rd-order , 2-channel D/A Converter |
| SM5879AV | 3rd-order , 2-channel D/A Converter |
| SM5882AS | Audio 3rd-order . D/A Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM5878AM | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:3rd-order , 2-channel D/A converter |
| SM5878AV | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:3rd-order , 2-channel D/A converter |
| SM5879 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:3rd-order , 2-channel D/A Converter |
| SM5879AV | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:3rd-order , 2-channel D/A Converter |
| SM5882-006-D-B | 功能描述:板上安裝壓力/力傳感器 RoHS:否 制造商:Honeywell 工作壓力:0 bar to 4 bar 壓力類型:Gage 準(zhǔn)確性:+ / - 0.25 % 輸出類型:Digital 安裝風(fēng)格:Through Hole 工作電源電壓:5 V 封裝 / 箱體:SIP 端口類型:Dual Radial Barbed, Same sides |
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