- 您现在的位置：买卖IC网 > PDF目录10978 > AD9834BRUZ-REEL (Analog Devices Inc)IC DDS 10BIT 50MHZ LP 20TSSOP PDF资料下载
参数资料
| 型号： | AD9834BRUZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 15/32页 |
| 文件大小： | 0K |
| 描述： | IC DDS 10BIT 50MHZ LP 20TSSOP |
| 产品培训模块： | Direct Digital Synthesis Tutorial Series (1 of 7): Introduction Direct Digital Synthesizer Tutorial Series (7 of 7): DDS in Action Direct Digital Synthesis Tutorial Series (3 of 7): Angle to Amplitude Converter Direct Digital Synthesis Tutorial Series (6 of 7): SINC Envelope Correction Direct Digital Synthesis Tutorial Series (4 of 7): Digital-to-Analog Converter Direct Digital Synthesis Tutorial Series (2 of 7): The Accumulator |
| 设计资源： | Amplitude Control Circuit for AD9834 Waveform Generator (CN0156) |
| 标准包装： | 2,500 |
| 分辨率（位）： | 10 b |
| 主 fclk： | 50MHz |
| 调节字宽（位）： | 28 b |
| 电源电压： | 2.3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页当前第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
AD9834
Data Sheet
Table 16. Applying the SLEEP Function
SLEEP
Pin
SLEEP1
Bit
SLEEP12
Bit
PIN/SW
Bit
Result
0
X
1
No power-down
1
X
1
DAC powered
down
X
0
No power-down
X
0
1
0
DAC powered
down
X
1
0
Internal clock
disabled
X
1
0
Both the DAC
powered down
and the internal
clock disabled
DAC Powered Down
This is useful when the AD9834 is used to output the MSB of
the DAC data only. In this case, the DAC is not required and
can be powered down to reduce power consumption.
Internal Clock Disabled
When the internal clock of the AD9834 is disabled, the DAC
output remains at its present value because the NCO is no
longer accumulating. New frequency, phase, and control words
can be written to the part when the SLEEP1 control bit is active.
The synchronizing clock remains active, meaning that the
selected frequency and phase registers can also be changed
either at the pins or by using the control bits. Setting the
SLEEP1 bit to 0 enables the MCLK. Any changes made to the
registers when SLEEP1 is active are observed at the output after
a certain latency.
The effect of asserting the SLEEP pin is evident immediately at
the output, that is, the zero-to-one transition of this pin is not
sampled. However, the negative transition of SLEEP is sampled
on the internal falling edge of MCLK.
SIGN BIT OUT PIN
The AD9834 offers a variety of outputs from the chip. The
digital outputs are available from the SIGN BIT OUT pin. The
available outputs are the comparator output or the MSB of the
DAC data. The bits controlling the SIGN BIT OUT pin are
outlined in Table 17.
This pin must be enabled before use. The enabling/disabling of
this pin is controlled by the Bit OPBITEN (DB5) in the control
register. When OPBITEN = 1, this pin is enabled. Note that the
MODE bit (DB1) in the control register should be set to 0 if
OPBITEN = 1.
Comparator Output
The AD9834 has an on-board comparator. To connect this
comparator to the SIGN BIT OUT pin, the SIGN/PIB (DB4)
control bit must be set to 1. After filtering the sinusoidal output
from the DAC, the waveform can be applied to the comparator
to generate a square waveform.
MSB from the NCO
The MSB from the NCO can be output from the AD9834. By
setting the SIGN/PIB (DB4) control bit to 0, the MSB of the
DAC data is available at the SIGN BIT OUT pin. This is useful
as a coarse clock source. This square wave can also be divided
by two before being output. Bit DIV2 (DB3) in the control register
controls the frequency of this output from the SIGN BIT OUT pin.
Table 17. Various Outputs from SIGN BIT OUT
OPBITEN
Bit
MODE
Bit
SIGN/PIB
Bit
DIV2
Bit
SIGN BIT OUT Pin
0
X
High impedance
1
0
DAC data MSB/2
1
0
1
DAC data MSB
1
0
1
0
Reserved
1
0
1
Comparator output
1
X
Reserved
THE IOUT AND IOUTB PINS
The analog outputs from the AD9834 are available from the
IOUT and IOUTB pins. The available outputs are a sinusoidal
output or a triangle output.
Sinusoidal Output
The SIN ROM converts the phase information from the
frequency and phase registers into amplitude information,
resulting in a sinusoidal signal at the output. To have a
sinusoidal output from the IOUT and IOUTB pins, set
Bit MODE (DB1) to 0.
Triangle Output
The SIN ROM can be bypassed so that the truncated digital
output from the NCO is sent to the DAC. In this case, the
output is no longer sinusoidal. The DAC produces 10-bit linear
triangular function. To have a triangle output from the IOUT
and IOUTB pins, set Bit MODE (DB1) to 1.
Note that the SLEEP pin and SLEEP12 bit must be 0 (that is, the
DAC is enabled) when using the IOUT and IOUTB pins.
Table 18. Various Outputs from IOUT and IOUTB
OPBITEN Bit
MODE Bit
IOUT and IOUTB Pins
0
Sinusoid
0
1
Triangle
1
0
Sinusoid
1
Reserved
3π/2
7π/2
11π/2
VOUT MAX
VOUT MIN
02705-
027
Figure 30. Triangle Output
Rev. D | Page 22 of 32
相关PDF资料 |
PDF描述 |
|---|---|
| MCF51EM256CLK | IC MCU 32BIT 256KB FLASH 80LQFP |
| VE-B1F-IW-B1 | CONVERTER MOD DC/DC 72V 100W |
| MC9S08JM32CQH | IC MCU 8BIT 32K FLASH 64-QFP |
| AD9833BRM-REEL7 | IC WAVEFORM GEN PROG 10-MSOP |
| MC908QC16CDTE | IC MCU 8BIT 16K FLASH 16-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9834BRUZ-REEL7 | 功能描述:IC DDS 10BIT 50MHZ LP 20TSSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 直接数字合成 (DDS) 系列:- 产品变化通告:Product Discontinuance 27/Oct/2011 标准包装:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 调节字宽（位）:32 b 电源电压:2.97 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| AD9834CRUZ | 功能描述:IC DDS 10BIT 75MHZ LP 20-TSSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 直接数字合成 (DDS) 系列:- 产品变化通告:Product Discontinuance 27/Oct/2011 标准包装:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 调节字宽（位）:32 b 电源电压:2.97 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| AD9834CRUZ-REEL7 | 功能描述:IC DDS 10BIT 75MHZ LP 20-TSSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 直接数字合成 (DDS) 系列:- 产品变化通告:Product Discontinuance 27/Oct/2011 标准包装:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 调节字宽（位）:32 b 电源电压:2.97 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| AD9835 | 制造商:AD 制造商全称:Analog Devices 功能描述:50 MHz CMOS Complete DDS |
| AD9835BRU | 功能描述:IC DDS DAC 10BIT 50MHZ 16-TSSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 直接数字合成 (DDS) 系列:- 产品变化通告:Product Discontinuance 27/Oct/2011 标准包装:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 调节字宽（位）:32 b 电源电压:2.97 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。