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ES9218PC bảng dữ liệu(PDF) 15 Page - ESS Technology,Inc

tên linh kiện ES9218PC
Giải thích chi tiết về linh kiện  32-bit Stereo Low Power DAC with Headphone Amplifier, Analog Volume Control, and Output Switch
PDF  101 Pages
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nhà sản xuất  ESS [ESS Technology,Inc]
Trang chủ  http://www.esstech.com
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ES9218PC bảng dữ liệu(HTML) 15 Page - ESS Technology,Inc

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ES9218P Datasheet
CONFIDENTIAL ADVANCE INFORMATION 1.8
December 6, 2018
15
ESS TECHNOLOGY, INC. 237 South Hillview Drive, Milpitas, CA 95035, USA Tel (408) 643-8800 • Fax (408) 643-8801
Standby Mode
For lowest power consumption, the following should be performed to enter stand-by mode:
Shut down the amplifier portion of the chip with Register 32: Amplifier Configuration (0x20)
1. Pull RESETB low. This will:
a. Shut off the DACs, oscillator and internal regulators.
b. Force all digital I/O pins into tri-state mode
2. If XI is supplied externally, it should be stopped at a logic low level
3. Disable any power supplies connected to the chip
To resume from standby mode:
1. Enable all power supplies
2. Pull RESETB up
3. Reinitialize all registers
To resume from standby mode, bring RESETB to a logic-high and reinitialize all registers.
OPERATION Mode
RESETB
GPIO2
HiFi Mode
(DAC & HPA: ON, AUX SW: OFF)
H
X
AUX Mode
(DAC & HPA: OFF, AUX SW: ON)
L
H
Standby(Shutdown) Mode
(DAC, HPA, AUX SW: OFF)
L
L
DVDD Supply
The ES9218P is equipped with a regulated DVDD supply powered from AVDD. The internal DVDD regulator should be decoupled to DGND with a
capacitor that maintains a minimum value of 1
F at 1.2V over the target operating temperature range.



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