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參數(shù)資料
| 型號： | AK4358 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 192 KHZ 24 BIT 8 CH DAC WITH DSD INPUT |
| 中文描述： | 192千赫24位8路DAC，具有DSD輸入 |
| 文件頁數(shù)： | 21/35頁 |
| 文件大小： | 457K |
| 代理商： | AK4358 |
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ASAHI KASEI
[AK4358]
MS0203-E-00
2003/02
- 21 -
Zero Detection
When the input data at all channels are continuously zeros for 8192 LRCK cycles, the AK4358 has Zero Detection like
Table 16. DZF pin immediately goes to “L” if input data of each channel is not zero after going DZF “H”. If RSTN bit is
“0”, DZF pin goes to “H”. DZF pin goes to “L” at 4~5LRCK if input data of each channel is not zero after RSTN bit
returns to “1”. Zero detect function can be disabled by DZFE bit. In this case, all DZF pins are always “L”. When one of
PW1-4 bit is set to “0”, the input data of DAC that the PW bit is set to “0” should be zero in order to enable zero detection
of the other channels. When all PW1-4 bits are set to “0”, DZF pin fixes “L”. DZFB bit can invert the polarity of DZF pin.
DZF Pin
DZF1
ANDed output of zero detection flag of each channel set to “1” in 0DH register
DZF2
ANDed output of zero detection flag of each channel set to “1” in 0EH register
DZF3
ANDed output of zero detection flag of each channel set to “1” in 0FH register
Operations
Table 16. DZF pins Operation
Soft Mute Operation
Soft mute operation is performed at digital domain. When the SMUTE bit goes to “1”, the output signal is attenuated by
-
∞
during ATT_DATA
×
ATT transition time (Table 15) from the current ATT level. When the SMUTE bit is returned to
“0”, the mute is cancelled and the output attenuation gradually changes to the ATT level during ATT_DATA
×
ATT
transition time. If the soft mute is cancelled before attenuating to -
∞
after starting the operation, the attenuation is
discontinued and returned to ATT level by the same cycle. The soft mute is effective for changing the signal source
without stopping the signal transmission.
SMUTE bit
Attenuation
DZF pin
ATT Level
-
∞
AOUT
8192/fs
GD
(2)
GD
(1)
(3)
(4)
(1)
Notes:
(1) ATT_DATA
×
ATT transition time (Table 15). For example, in Normal Speed Mode, this time is 1792LRCK cycles
(1792/fs) at ATT_DATA=128.
(2) The analog output corresponding to the digital input has a group delay, GD.
(3) If the soft mute is cancelled before attenuating to -
∞
after starting the operation, the attenuation is discontinued and
returned to ATT level by the same cycle.
(4) When the input data at each channel is continuously zeros for 8192 LRCK cycles, DZF pin of each channel goes to
“H”. DZF pin immediately goes to “L” if input data are not zero after going DZF “H”.
Figure 14. Soft Mute and Zero Detection
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AKD4358 | Circular Connector; No. of Contacts:22; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:12-35 RoHS Compliant: No |
| AK4358VQ | 192 KHZ 24 BIT 8 CH DAC WITH DSD INPUT |
| AK4359 | 192 KHZ 24 BIT 8CH DAC |
| AKD4359 | Circular Connector; No. of Contacts:22; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:12-35 RoHS Compliant: No |
| AK4359VF | 192 KHZ 24 BIT 8CH DAC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4358_06 | 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit 8ch DAC with DSD Input |
| AK4358VQ | 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit 8ch DAC with DSD Input |
| AK4358VQP-L | 功能描述:IC DAC 24BIT SERIAL 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:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 設(shè)置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓，單極 采樣率（每秒）:* 產(chǎn)品目錄頁面:1398 (CN2011-ZH PDF) |
| AK4359 | 制造商:AKM 制造商全稱:AKM 功能描述:192 KHZ 24 BIT 8CH DAC |
| AK4359_06 | 制造商:AKM 制造商全稱:AKM 功能描述:106dB 192kHz 24-Bit 8ch DAC |
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