- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384286 > EK4355 (Asahi Kasei Microsystems Co.,Ltd) 192KHZ 24BIT 6CH DAC FOR DVD AUDIO PDF資料下載
參數(shù)資料
| 型號(hào)： | EK4355 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 192KHZ 24BIT 6CH DAC FOR DVD AUDIO |
| 中文描述： | 192kHz的24位6路援會(huì)的DVD音頻 |
| 文件頁數(shù)： | 21/24頁 |
| 文件大?。?/td> | 160K |
| 代理商： | EK4355 |
ASAHI KASEI
[AK4355]
MS0063-E-01
2002/07
- 21 -
Analog Ground
Digital Ground
System
Controller
VREF
1
DZF
2
PDN
3
MCLK
4
BICK
5
SDTI1
6
SDTI2
7
SDTI3
8
LRCK
9
CSN
10
CCLK
11
CDTI
12
AVDD
28
AVSS
27
LOUT1+
26
LOUT1-
25
ROUT1+
24
ROUT1-
23
LOUT2+
22
LOUT2-
21
ROUT2+
20
ROUT2-
19
LOUT3+
18
LOUT3-
AK4355
17
13
14
16
15
DVDD
DVSS
ROUT3+
ROUT3-
Figure10. Ground Layout
Note: AVSS and DVSS must be connected to the same analog ground plane.
1. Grounding and Power Supply Decoupling
The AK4355 requires careful attention to power supply and grounding arrangements. AVDD and DVDD are usually
supplied from analog supply in system. Alternatively if AVDD and DVDD are supplied separately, the power up sequence
is not critical.
AVSS and DVSS of the AK4355 must be connected to analog ground plane
. System analog ground and
digital ground should be connected together near to where the supplies are brought onto the printed circuit board.
Decoupling capacitors should be near to the AK4355 as possible, with the small value ceramic capacitors being the nearest.
2. Voltage Reference Inputs
VREF sets the analog output range. VREF pin is normally connected to AVDD with a 0.1
μ
F ceramic capacitor. All signals,
especially clocks, should be kept away from the VREF pin in order to avoid unwanted coupling into the AK4355
3. Analog Outputs
The analog outputs are full-differential outputs and 0.64 x VREFH Vpp (typ) centered around the internal common voltage
(about AVDD/2). The differential outputs are summed externally, V
AOUT
=(AOUT+)-(AOUT-) between AOUT+ and AOUT-.
If the summing gain is 1, the output range is 6.4Vpp (typ @VREFH=5V). The bias voltage of the external summing circuit is
supplied externally. The input data format is 2’s complement. The output voltage (V
AOUT
) is a positive full scale for 7FFFFF
(@24bit) and a negative full scale for 800000H (@24bit). The ideal V
AOUT
is 0V for 000000H (@24bit).
The internal switched-capacitor filter and external low pass filter attenuate the noise generated by the delta-sigma modulator
beyond the audio passband. DC offset on AOUT+/- is eliminated without AC coupling since the analog outputs are
differential. Figure 11and 12 show the example of external op-amp circuit summing the differential outputs.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EKA | Aluminum Electrolytic Capacitors, Radial Style(徑向引線鋁電解電容) |
| EKB | Aluminum Electrolytic Capacitors, Radial Style(擴(kuò)展溫度范圍為105℃的徑向引線鋁電解電容) |
| EL815 | Technical Data Sheet Photocoupler |
| EL815B1 | Technical Data Sheet Photocoupler |
| EL816 | Photo coupler |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EK43601-01 | 功能描述:KIT EVAL FOR 43601 RF DSA RoHS:是 類別:RF/IF 和 RFID >> RF 評(píng)估和開發(fā)套件，板 系列:UltraCMOS™, HaRP™ 標(biāo)準(zhǔn)包裝:1 系列:- 類型:GPS 接收器 頻率:1575MHz 適用于相關(guān)產(chǎn)品:- 已供物品:模塊 其它名稱:SER3796 |
| EK43602-01 | 功能描述:KIT EVAL FOR PE43602 RF DSA RoHS:是 類別:RF/IF 和 RFID >> RF 評(píng)估和開發(fā)套件，板 系列:UltraCMOS™, HaRP™ 標(biāo)準(zhǔn)包裝:1 系列:- 類型:GPS 接收器 頻率:1575MHz 適用于相關(guān)產(chǎn)品:- 已供物品:模塊 其它名稱:SER3796 |
| EK43701-01 | 功能描述:KIT EVAL FOR 43701 RF DSA RoHS:是 類別:RF/IF 和 RFID >> RF 評(píng)估和開發(fā)套件，板 系列:UltraCMOS™, HaRP™ 標(biāo)準(zhǔn)包裝:1 系列:- 類型:GPS 接收器 頻率:1575MHz 適用于相關(guān)產(chǎn)品:- 已供物品:模塊 其它名稱:SER3796 |
| EK43702-01 | 功能描述:KIT EVAL FOR PE43702 RF DSA RoHS:是 類別:RF/IF 和 RFID >> RF 評(píng)估和開發(fā)套件，板 系列:UltraCMOS™, HaRP™ 標(biāo)準(zhǔn)包裝:1 系列:- 類型:GPS 接收器 頻率:1575MHz 適用于相關(guān)產(chǎn)品:- 已供物品:模塊 其它名稱:SER3796 |
| EK43703-01 | 功能描述:KIT EVAL FOR PE43703 DSA RoHS:是 類別:RF/IF 和 RFID >> RF 評(píng)估和開發(fā)套件，板 系列:UltraCMOS™, HaRP™ 標(biāo)準(zhǔn)包裝:1 系列:- 類型:GPS 接收器 頻率:1575MHz 適用于相關(guān)產(chǎn)品:- 已供物品:模塊 其它名稱:SER3796 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。