參數(shù)資料
型號: EVAL-AD1974EB
廠商: Analog Devices, Inc.
元件分類: Codec
英文描述: 4 ADC with PLL, 192 kHz, 24-Bit Codec
中文描述: 4 ADC,具有鎖相環(huán),192千赫,24位編解碼器
文件頁數(shù): 18/24頁
文件大?。?/td> 307K
代理商: EVAL-AD1974EB
AD1974
CONTROL REGISTERS
The format is the same for I
2
C and SPI ports. The global address for the AD1974 is 0x04, shifted left one bit due to the R/W bit. All
registers are reset to 0.
Note that the first setting in each control register parameter is the default setting.
Rev. 0 | Page 18 of 24
Table 14. Register Format
Global Address
Bit
23:17
R/W
16
Register Address
15:8
Data
7:0
Table 15. Register Addresses Description
Address
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Function
PLL and Clock Control 0
PLL and Clock Control 1
AUXPORT Control 0
AUXPORT Control 1
AUXPORT Control 2
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
ADC Control 0
ADC Control 1
ADC Control 2
PLL AND CLOCK CONTROL REGISTERS
Table 16. PLL and Clock Control 0
Bit
Value
0
0
1
2:1
00
01
10
11
4:3
00
01
10
11
6:5
00
01
10
11
7
0
1
Function
Normal operation
Power-down
INPUT 256 (×44.1 kHz or 48 kHz)
INPUT 384 (×44.1 kHz or 48 kHz)
INPUT 512 (×44.1 kHz or 48 kHz)
INPUT 768 (×44.1 kHz or 48 kHz)
XTAL oscillator enabled
256 × f
S
VCO output
512 × f
S
VCO output
Off
MCLKI/XI
AUXLRCLK
ALRCLK
Reserved
Disable: ADC idle
Enable: ADC active
Description
PLL power-down
MCLKI/XI pin functionality (PLL active), master clock rate setting
MCLKO/XO pin, master clock rate setting
PLL input
Internal MCLK enable
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