- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385099 > AK5394AVS (Asahi Kasei Microsystems Co.,Ltd) Super High Performance 192kHz 24-Bit ADC PDF資料下載
參數(shù)資料
| 型號(hào)： | AK5394AVS |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Super High Performance 192kHz 24-Bit ADC |
| 中文描述： | 超高性能192kHz的24位ADC |
| 文件頁數(shù)： | 15/24頁 |
| 文件大小： | 174K |
| 代理商： | AK5394AVS |
ASAHI KASEI
[AK5394A]
MS0137-E-01
2002/07
- 15 -
Offset
Calibration
1. When the capacitors of 10μF or less are connected between VREF pin and GND:
When RSTN pin goes to “L”, the digital section is powered-down. Upon returning “H”, the offset calibration cycle is
started. The offset calibration cycle should always be initiated after power-up.
During the offset calibration cycle, the digital section of the part measures and stores the values of calibration input of each
channel in registers. The calibration input value is subtracted from all future outputs. The calibration input may be obtained
from either the analog input pins (AIN+/
) or the VCOM pins depending on the state of the ZCAL pin. With ZCAL “H”,
the analog input pin voltages are measured, and with ZCAL “L”, the VCOM pin voltages are measured. The CAL output is
“H” during calibration.
2. When capacitors more than 10μF are connected between VREF pin and GND:
The distortion at low frequency can be improved by connecting large capacitors (C in Figure 5) to VREF pins. (Refer to
Figure 12) However, when the capacitors of VREF pins are larger than 10μF, it is possibility that the offset calibration does
not performed correctly if the offset calibration cycle is started right after power-up. Because the internal VREF can not
settle to the appropriate voltage when the calibration cycle is completed. In this case, the offset calibration cycle should be
started again after the VREF voltage settled. The timing is shown in Figure 6. Table 4 shows the relationship between the
capacitance and the VREF settling time.
Capacitor
C[
μ
F]
Settling Time
T[s]=5000 x C
1000
470
220
100
5
2.4
1.1
0.5
Table 4. Settling Time and capacitors connected between VREF and GND
VREFL+
1
VREFL-
2
0.22u
C
+
AK5394A
+
C
Figure 5. VREF circuit example
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AKM4550 | JT 41C 41#20 PIN PLUG |
| AK4550 | LOW POWER & SMALL PACKAGE 16BIT CODEC |
| AK4550VT | LOW POWER & SMALL PACKAGE 16BIT CODEC |
| ALN2400 | Low Noise Amplifier |
| AM79212 | Advanced Subscriber Line Interface Circuit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK5394AVSP | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:SUPER HIGH PERFORMANCE 192KHZ 24 BIT DELTA SEGMA ADC |
| AK5394AVSP-E2 | 功能描述:IC ADC AUDIO STER 24BIT 28VSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Basics 標(biāo)準(zhǔn)包裝:1 系列:- 類型:電機(jī)控制 分辨率（位）:12 b 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，并聯(lián) 電壓電源:單電源 電源電壓:2.7 V ~ 3.6 V，4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:100-TQFP 供應(yīng)商設(shè)備封裝:100-TQFP（14x14） 包裝:剪切帶 (CT) 其它名稱:296-18373-1 |
| AK5397EQ | 功能描述:ADC, Audio 32 bit 192k, 768k I2S 44-LQFP (10x10) 制造商:akm semiconductor inc. 系列:- 包裝:托盤 零件狀態(tài):有效 類型:ADC，音頻 分辨率（位）:32 b 采樣率（每秒）:192k，768k 數(shù)據(jù)接口:I2S 電壓源:模擬和數(shù)字 電壓 - 電源:3 V ~ 3.6 V，5V 工作溫度:-10°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:44-LQFP 供應(yīng)商器件封裝:44-LQFP（10x10） 標(biāo)準(zhǔn)包裝:160 |
| AK5401AVQ | 功能描述:IC ADC TRIPLE 80MSPS LQFP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購買時(shí)間 標(biāo)準(zhǔn)包裝:1,000 |
| AK5404VQ | 功能描述:IC ADC TRIPLE 80MSPS LQFP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購買時(shí)間 標(biāo)準(zhǔn)包裝:1,000 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。