参数资料
| 型号： | AD9735BBCZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 39/72页 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT 1.2GSPS 160-CSPBGA |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1 |
| 位数： | 12 |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 电压电源： | 模拟和数字 |
| 功率耗散（最大）： | 550mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 160-LFBGA，CSPBGA |
| 供应商设备封装： | 160-CSPBGA（12x12） |
| 包装： | 托盘 |
| 输出数目和类型： | 2 电流，单极 |
| 采样率（每秒）： | 1.2G |
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AD9734/AD9735/AD9736
Rev. A | Page 44 of 72
DIGITAL BUILT-IN SELF TEST (BIST)
OVERVIEW
The AD973x includes an internal signature generator that
processes incoming data to create unique signatures. These
signatures are read back from the SPI port, allowing verification
of correct data transfer into the AD973x. BIST vectors provided
on the AD973x-EB evaluation board CD check the full width
data input or individual bits for PCB debug, utilizing the
procedure in the AD973X BIST Procedure section. Alterna-
tively, any vector can be used provided the expected signature is
calculated in advance.
The MATLAB routine, in the Generating Expected Signatures
section, calculates the expected signature. BIST verifies correct
data transfer because not all errors are always evident on a
spectrum analyzer. There are four BIST signature generators
that can be read back using Reg. 18 to Reg. 21, based on the
setting of the BIST selection bits (Reg. 17, Bits 7:6), as shown in
Table 24. The BIST signature returned from the AD973x
depends on the digital input during the test. Because the filters
in the DAC have memory, it is important to put the correct idle
value on the DATA input to flush the memory prior to reading
the BIST signature.
Placing the idle value on the data input also allows the BIST to
be set up while the DAC clock is running. The idle value should
be all 0s in unsigned mode (0x0000) and all 0s except for the
MSB in twos complement mode (0x2000).
The BIST consists of two stages; the first stage is after the LVDS
receiver and the second stage is after the FIFO. The first BIST
stage verifies correct sampling of the data from the LVDS bus
while the second BIST stage verifies correct synchronization
between the DAC_CLK domain and the DATACLK_IN
domain. The BIST vector is generated using 32-bit LFSR
signature logic. Because the internal architecture is a 2-bus
parallel system, there are two 32-bit LFSR signature logic blocks
on both the LVDS and SYNC blocks. Figure 84 shows where the
LVDS and SYNC phases are located.
Table 24. BIST Selection Bits
Bit
SEL<1>
SEL<0>
LVDS Phase 1
0
LVDS Phase 2
0
1
SYNC Phase 1
1
0
SYNC Phase 2
1
LVDS
RX
DB<13:0>
DATACLK_IN
SYNC LOGIC
FIFO
2x
D1
D2
DAC
LVDS
BIST
PH1
(RISE)
LVDS
BIST
PH2
(FALL)
SYNC
BIST
PH1
(RISE)
SYNC
BIST
PH2
(FALL)
SPI PORT
04862-082
Figure 84. Block Diagram Showing LVDS and SYNC Phase 1 and SYNC Phase 2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9735BBCZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:10-/12-/14-Bit, 1200 MSPS DACS |
| AD9735BBCZRL | 功能描述:IC DAC 12BIT 1.2GSPS 160-CSPBGA 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:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散（最大）:100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC（J 形引线） 供应商设备封装:28-PLCC（11.51x11.51） 包装:带卷 (TR) 输出数目和类型:1 电压，单极；1 电压，双极 采样率（每秒）:143k |
| AD9735BBCZRL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:10-/12-/14-Bit, 1200 MSPS DACS |
| AD9735-DPG2-EBZ | 功能描述:BOARD EVAL FOR AD9735 RoHS:是 类别:编程器，开发系统 >> 评估板 - 数模转换器 (DAC) 系列:* 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- DAC 的数量:4 位数:12 采样率（每秒）:- 数据接口:串行，SPI? 设置时间:3µs DAC 型:电流/电压 工作温度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
| AD9735-EB | 制造商:Analog Devices 功能描述: |
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