參數(shù)資料
型號: AD1974YSTZ
廠商: Analog Devices Inc
文件頁數(shù): 10/24頁
文件大小: 0K
描述: IC ADC 4CH W/ON-CHIP PLL 48LQFP
標準包裝: 1
位數(shù): 24
采樣率(每秒): 192k
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 4
功率耗散(最大): 429mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應商設備封裝: 48-LQFP(7x7)
包裝: 托盤
輸入數(shù)目和類型: 4 個差分,單極
產(chǎn)品目錄頁面: 777 (CN2011-ZH PDF)
AD1974
Data Sheet
Rev. D | Page 18 of 24
CONTROL REGISTERS
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.
Table 14. Register Format
Global Address
R/W
Register Address
Data
Bit
23:17
16
15:8
7:0
Table 15. Register Addresses Description
Address
Function
0
PLL and Clock Control 0
1
PLL and Clock Control 1
2
AUXPORT Control 0
3
AUXPORT Control 1
4
AUXPORT Control 2
5
Reserved
6
Reserved
7
Reserved
8
Reserved
9
Reserved
10
Reserved
11
Reserved
12
Reserved
13
Reserved
14
ADC Control 0
15
ADC Control 1
16
ADC Control 2
PLL AND CLOCK CONTROL REGISTERS
Table 16. PLL and Clock Control 0
Bit
Value
Function
Description
0
Normal operation
PLL power-down
1
Power-down
2:1
00
INPUT 256 (×44.1 kHz or 48 kHz)
MCLKI/XI pin functionality (PLL active), master clock rate setting
01
INPUT 384 (×44.1 kHz or 48 kHz)
10
INPUT 512 (×44.1 kHz or 48 kHz)
11
INPUT 768 (×44.1 kHz or 48 kHz)
4:3
00
XTAL oscillator enabled
MCLKO/XO pin, master clock rate setting
01
256 × fS VCO output
10
512 × fS VCO output
11
Off
6:5
00
MCLKI/XI
PLL input
01
AUXLRCLK
10
ALRCLK
11
Reserved
7
0
Disable: ADC idle
Internal MCLK enable
1
Enable: ADC active
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