参数资料
型号: AD1974YSTZ-RL
厂商: Analog Devices Inc
文件页数: 11/24页
文件大小: 0K
描述: IC CODEC 4CH ADC W/PLL 48-LQFP
标准包装: 2,000
位数: 24
采样率(每秒): 192k
数据接口: 串行,SPI?
转换器数目: 4
功率耗散(最大): 429mW
电压电源: 模拟和数字
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 带卷 (TR)
输入数目和类型: 4 个差分,单极
Data Sheet
AD1974
Rev. D | Page 19 of 24
Table 17. PLL and Clock Control 1
Bit
Value
Function
Description
0
PLL clock
AUXPORT clock source select
1
MCLK
1
0
PLL clock
ADC clock source select
1
MCLK
2
0
Enabled
On-chip voltage reference
1
Disabled
3
0
Not locked
PLL lock indicator (read only)
1
Locked
7:4
0000
Reserved
AUXPORT CONTROL REGISTERS
Table 18.
AUXPORT Control 0
Bit
Value
Function
Description
0
Reserved
1
Reserved
2:1
00
32 kHz/44.1 kHz/48 kHz
Sample rate
01
64 kHz/88.2 kHz/96 kHz
10
128 kHz/176.4 kHz/192 kHz
11
Reserved
5:3
000
1
AUXDATA delay (AUXBCLK periods)
001
0
010
8
011
12
100
16
101
Reserved
110
Reserved
111
Reserved
7:6
00
Stereo (normal)
Serial format
01
Reserved
10
ADC AUX mode (ADC-, TDM-coupled)
11
Reserved
Table 19. AUXPORT Control 1
Bit
Value
Function
Description
0
Reserved
1
Reserved
2:1
00
64 (two channels)
AUXBCLKs per frame
01
Reserved
10
Reserved
11
Reserved
3
0
Left low
AUXLRCLK polarity
1
Left high
4
0
Slave
AUXLRCLK master/slave
1
Master
5
0
Slave
AUXBCLK master/slave
1
Master
6
0
AUXBCLK pin
AUXBCLK source
1
Internally generated
7
0
Normal
AUXBCLK polarity
1
Inverted
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