參數(shù)資料
型號(hào): EVAL-AD1937AZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 20/36頁(yè)
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD1937
標(biāo)準(zhǔn)包裝: 1
主要目的: 音頻編解碼器
已用 IC / 零件: AD1937
主要屬性: 24 位,192 kHz,4 ADC: 107dB 動(dòng)態(tài)范圍,8 DAC: 112dB 動(dòng)態(tài)范圍
次要屬性: 分時(shí)復(fù)用(TDM)、I2C 和 SPI 接口,Popguard? 技術(shù)
已供物品:
AD1937
Rev. B | Page 27 of 36
CONTROL REGISTERS
DEFINITIONS
The global address for the AD1937 is 0x08 OR’ed with ADDR1 and ADDR0 and one R/W bit; see
and
. The address
bits (Bits[18:17]) setting must correspond to the low/high state of Pin 30 and Pin 35. All registers are reset to 0, except for the DAC
volume registers that are set to full volume.
Note that the first setting in each control register parameter is the default setting.
Table 20. Register Format
Global Address
R/W
Register Address
Data
Bit
23:17
16
15:8
7:0
Table 21. Register Addresses and Functions
Hexadecimal
Address
Function
0x00
0
PLL and Clock Control 0
0x01
1
PLL and Clock Control 1
0x02
2
DAC Control 0
0x03
3
DAC Control 1
0x04
4
DAC Control 2
0x05
5
DAC individual channel mutes
0x06
6
DAC1L volume control
0x07
7
DAC1R volume control
0x08
8
DAC2L volume control
0x09
9
DAC2R volume control
0x0A
10
DAC3L volume control
0x0B
11
DAC3R volume control
0x0C
12
DAC4L volume control
0x0D
13
DAC4R volume control
0x0E
14
ADC Control 0
0x0F
15
ADC Control 1
0x10
16
ADC Control 2
PLL AND CLOCK CONTROL REGISTERS
Table 22. PLL and Clock Control 0 Register (Address 0, 0x00)
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/MCLKXI 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/MCLKXO pin, master clock rate setting
01
256 × fS VCO output
10
512 × fS VCO output
11
Off
6:5
00
MCLKI/MCLKXI
PLL input
01
DLRCLK
10
ALRCLK
11
Reserved
7
0
Disable: ADC and DAC idle
Internal master clock enable
1
Enable: ADC and DAC active
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