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参数资料
| 型号： | AD1934WBSTZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/28页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8CH W/ON-CHIP PLL 48LQFP |
| 标准包装： | 2,000 |
| 位数： | 24 |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 8 |
| 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) |
| 输出数目和类型： | 8 电压，单极 |
| 采样率（每秒）： | * |
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Data Sheet
AD1934
Rev. D | Page 13 of 28
SERIAL CONTROL PORT
The AD1934 has an SPI control port that permits programming
and reading back of the internal control registers for the ADCs,
DACs, and clock system. A standalone mode is also available
for operation without serial control; standalone is configured
at reset by connecting CIN, CCLK, and CLATCH to ground.
In standalone mode, all registers are set to default, except the
internal MCLK enable, which is set to 1. The ADC ABCLK and
ALRCLK clock ports are set to master/slave by the connecting
the COUT pin to either DVDD or ground. Standalone mode
only supports stereo mode with an I2S data format and 256 fS
MCLK rate. Refer to Table 11 for details. If CIN, CCLK, and
CLATCH are not grounded, the AD1934 SPI port is active. It
is recommended to use a weak pull-up resistor on CLATCH in
applications that have a microcontroller. This pull-up resistor
ensures that the AD1934 recognizes the presence of a micro-
controller.
The SPI control port of the AD1934 is a 4-wire serial control
port. The format is similar to the Motorola SPI format except
the input data-word is 24 bits wide. The serial bit clock and
latch can be completely asynchronous to the sample rate of the
DACs. Figure 9 shows the format of the SPI signal. The first
byte is a global address with a read/write bit. For the AD1934,
the address is 0x04, shifted left 1 bit due to the R/W bit. The
second byte is the AD1934 register address and the third byte
is the data.
Table 11. SPI vs. Standalone Mode Configuration
DAC Control
COUT
CIN
CLATCH
CCLK
SPI
OUT
IN
1 (Pull-Up)
IN
Standalone
0
D0
D8
D22
D23
D9
CLATCH
CCLK
CIN
COUT
tCCH tCCL
tCDS tCDH
tCLS
tCCP
tCLH
tCOTS
tCOD
tCOE
06
10
6-
0
10
Figure 9. Format of SPI Signal
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相关代理商/技术参数 |
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| AD1934YSTZ | 功能描述:IC DAC 8CH W/ON-CHIP PLL 48LQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 设置时间:4µs 位数:12 数据接口:串行 转换器数目:2 电压电源:单电源 功率耗散（最大）:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-uMAX 包装:管件 输出数目和类型:2 电压，单极 采样率（每秒）:* 产品目录页面:1398 (CN2011-ZH PDF) |
| AD1934YSTZ-RL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD1935 | 制造商:AD 制造商全称:Analog Devices 功能描述:4 ADC/8 DAC with PLL, 192 kHz, 24 Bit CODEC |
| AD1935XSTZ | 制造商:AD 制造商全称:Analog Devices 功能描述:4 ADC/8 DAC with PLL, 192 kHz, 24 Bit CODEC |
| AD1935XSTZRL | 制造商:AD 制造商全称:Analog Devices 功能描述:4 ADC/8 DAC with PLL, 192 kHz, 24 Bit CODEC |
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