參數(shù)資料
型號(hào)： AK4562
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類(lèi)： Codec
英文描述： LOW POWER 20BIT CODEC WITH PGA
中文描述： 低功耗20位編解碼器美巡賽
文件頁(yè)數(shù)： 14/29頁(yè)
文件大?。?/td> 167K
代理商： AK4562
ASAHI KASEI
[AK4562]
MS0031-E-00
2000/05
- 14 -
The clocks may be stopped.
4128/fs
PDN pin
Power Supply
ADC Internal
State
Control register
Write to register
DAC Internal
State
External clocks
AIN
SDTO
SDTI
AOUT1
PD
PDN pin may be “L” at power-up.
CAL
GD
Normal
GD
GD (1)
“0”data
(3) “0”data
PD
(2)
PM
Normal
(1)
Idle Noise
Normal
PM
Normal
“0”data
GD (1)
GD (1)
(5)
(5)
INIT-2
Normal
Inhibit-1
Inhibit-2
Normal
(6)
4128/fs
INIT-1
GD (1)
(6)
(4)
Figure 11. Power up / Power down Timing Example
PD:
PM:
CAL:
INIT-1:
INIT-2:
Inhibit-1:
Inhibit-2:
Power-down state. ADC is output “0”, analog output of DAC and OPGA goes floating.
Power-down state by Power Management bit. ADC is output “0”, analog output of DAC goes floating.
During offset calibration cycle. IPGA and OPGA are set MUTE state.
Initialize cycle of ADC. Offset calibration is not executed.
Initializing all control registers.
Inhibits writing to all control registers.
Enable writing to control registers except address 01H.
Note: See “Register Definitions” about the condition of each register.
(1). Digital output corresponding to analog input and analog output corresponding to digital input have the group delay
(GD). Output signal gradually comes to settle to input signal during a group delay.
(2). If the analog signal does not be input, digital outputs have the offset to op-amp of input and some offset error of a
internal ADC.
(3). ADC output is “0” at power down.
(4). This figure shows that MUTE of IPGA is canceled during offset calibration. If MUTE of IPGA is canceled, SDTO
outputs Idle Noise.
(5). Click noise occurs at the “
↑↓
” of PDN signal. Please mute the analog output external if the click noise influences
system application.
(6). When the external clocks (MCLK, BCLK and LRCK) are stopped, the AK4562 should be in the power down
(PDN pin = “L” or PM2-1 bit = “0”) mode.
相關(guān)PDF資料
PDF描述
AK4562VN LOW POWER 20BIT CODEC WITH PGA
AK4563A Low Power 16bit 4ch ADC & 2ch DAC with ALC
AK4563AVF Low Power 16bit 4ch ADC & 2ch DAC with ALC
AK4564 16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP
AK4564VQ 16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4562VN 制造商:AKM 制造商全稱(chēng):AKM 功能描述:LOW POWER 20BIT CODEC WITH PGA
AK4563A 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Low Power 16bit 4ch ADC & 2ch DAC with ALC
AK4563AVF 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Low Power 16bit 4ch ADC & 2ch DAC with ALC
AK4564 制造商:AKM 制造商全稱(chēng):AKM 功能描述:16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP
AK4564VQ 制造商:AKM 制造商全稱(chēng):AKM 功能描述:16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP
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