参数资料
型号: AD1928YSTZ
厂商: Analog Devices Inc
文件页数: 6/32页
文件大小: 0K
描述: IC CODEC 2ADC 8DAC W/PLL 48LQFP
标准包装: 1
类型: 通用
数据接口: 串行
分辨率(位): 24 b
ADC / DAC 数量: 2 / 8
三角积分调变:
S/N 比,标准 ADC / DAC (db): 94 / 94
动态范围,标准 ADC / DAC (db): 105 / 108
电压 - 电源,模拟: 3 V ~ 3.6 V
电压 - 电源,数字: 3 V ~ 3.6 V
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: 托盘
AD1928
Rev. B | Page 14 of 32
ground connections with other unrelated digital output signals.
When the PLL is used, jitter in the reference clock is attenuated
above a certain frequency depending on the loop filter.
RESET AND POWER-DOWN
The function of the RST pin sets all the control registers to
their default settings. To avoid pops, reset does not power
down the analog outputs. After RST is deasserted and the PLL
acquires lock condition, an initialization routine runs inside the
AD1928. This initialization lasts for approximately 256 master
clock cycles.
The power-down bits in the PLL and Clock Control 0, DAC
Control 1, and ADC Control 1 registers power down the
respective sections. All other register settings are retained. The
reset pin, PD/RST, should be pulled low by an external resistor
to guarantee proper startup.
SERIAL CONTROL PORT
The AD1928 has an SPI control port that permits programming
and reading back of the internal control registers for the ADCs,
DACs, and clock system. There is also a standalone mode
available for operation without serial control that is configured
at reset using the serial control pins. All registers are set to
default, except the internal master clock enable is set to 1
and ADC BCLK and LRCLK master/slave is set by the COUT
pin. Standalone mode only supports stereo mode with an I2S
data format and 256 fS master clock rate. Refer to Table 11 for
details. 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 AD1928 recognizes the presence of
a microcontroller.
The SPI control port of the AD1928 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
ADCs and DACs. Figure 11 shows the format of the SPI signal.
The first byte is a global address with a read/write bit. For the
AD1928, the address is 0x04, shifted left 1 bit due to the R/W
bit. The second byte is the AD1928 register address and the
third byte is the data.
Table 11. Standalone Mode Selection
ADC Clocks
CIN
COUT
CCLK
CLATCH
Slave
0
Master
0
1
0
D0
D8
D22
D23
D9
CLATCH
CCLK
CIN
COUT
tCCH tCCL
tCDS tCDH
tCLS
tCCP
tCLH
tCOTS
tCOD
tCOE
06
62
3-
0
11
Figure 11. Format of SPI Signal
相关PDF资料
PDF描述
AD1933WBSTZ-RL IC DAC 24BIT SRL/SPI 64LQFP
AD1934WBSTZ-RL IC DAC 8CH W/ON-CHIP PLL 48LQFP
AD1937WBSTZ IC CODEC 4/ADC DIFF OUT 64-LQFP
AD1938WBSTZ IC CODEC 24BIT 4ADC/8DAC 48LQFP
AD1939WBSTZ-RL AUDIO CODEC W/ON CHIP 4ADC 8DAC
相关代理商/技术参数
参数描述
AD1928YSTZ-RL 功能描述:IC CODEC 2ADC 8DAC W/PLL 48LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 编解码器 系列:- 标准包装:2,500 系列:- 类型:立体声音频 数据接口:串行 分辨率(位):18 b ADC / DAC 数量:2 / 2 三角积分调变:是 S/N 比,标准 ADC / DAC (db):81.5 / 88 动态范围,标准 ADC / DAC (db):82 / 87.5 电压 - 电源,模拟:2.6 V ~ 3.3 V 电压 - 电源,数字:1.7 V ~ 3.3 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-WFQFN 裸露焊盘 供应商设备封装:48-TQFN-EP(7x7) 包装:带卷 (TR)
AD1933 制造商:AD 制造商全称:Analog Devices 功能描述:8-Channel DAC with PLL and Differential Outputs, 192 kHz, 24 Bits
AD1933WBSTZ 功能描述:IC DAC 24BIT SRL/SPI 64LQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:1 系列:- 设置时间:4.5µs 位数:12 数据接口:串行,SPI? 转换器数目:1 电压电源:单电源 功率耗散(最大):- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-SOIC(0.154",3.90mm 宽) 供应商设备封装:8-SOICN 包装:剪切带 (CT) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):* 其它名称:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND
AD1933WBSTZ-RL 功能描述:IC DAC 24BIT SRL/SPI 64LQFP 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:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色产品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 标准包装:91 系列:- 设置时间:4µs 位数:10 数据接口:MICROWIRE?,串行,SPI? 转换器数目:8 电压电源:单电源 功率耗散(最大):2.7mW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-DFN-EP(4x3) 包装:管件 输出数目和类型:8 电压,单极 采样率(每秒):*
AD1933YSTZ 功能描述:IC DAC 24BIT SRL/SPI 8CH RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:1 系列:- 设置时间:4.5µs 位数:12 数据接口:串行,SPI? 转换器数目:1 电压电源:单电源 功率耗散(最大):- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-SOIC(0.154",3.90mm 宽) 供应商设备封装:8-SOICN 包装:剪切带 (CT) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):* 其它名称:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND