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参数资料
| 型号： | MAX5858ECM+TD |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/23页 |
| 文件大小： | 0K |
| 描述： | IC DAC 10BIT DUAL 300MSPS 48TQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 设置时间： | 11ns |
| 位数： | 10 |
| 数据接口： | 并联 |
| 转换器数目： | 2 |
| 电压电源： | 单电源 |
| 功率耗散（最大）： | 816mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-TQFP 裸露焊盘 |
| 供应商设备封装： | 48-TQFP 裸露焊盘（7x7） |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 2 电流，单极 |
| 采样率（每秒）： | 300M |
MAX5858
Dual, 10-Bit, 300Msps, Current-Output DAC with
4x/2x/1x Interpolation Filters
______________________________________________________________________________________
15
SINGLE 10-BIT BUS
SAVES I/O PINS
DATA CLOCK OUT
fDATA = 71.6MHz
CLOCK SOURCE
fDAC = 286.4MHz
INTERLEAVE
DATA
LATCH
DATA
LATCH
10-BIT
DIGITAL BASEBAND
OFDM PROCESSOR
QAM-MAPPER
FS ANALOG OUT
MAINTAINED OVER
ENTIRE SUPPLY RANGE
2.7V TO 3.3V
DATA
LATCH
10-BIT BUS
DIV-4
DIV-2
DIV-1
INTERPOLATING
FILTERS
4x/2x
SINGLE SUPPLY
2.7V TO 3.3V
CH-1
DAC
CH-2
DAC
AOUT2
AOUT1
INTERPOLATING
FILTERS
4x/2x
Figure 2. Typical Application Circuit
OPTION
SOLUTION
ADVANTAGE
DISADVANTAGE
1
No interpolation
2.6x oversample
fDAC = fDATA = 78MHz
Low data rate
Low clock rate
High order filter
Filter gain/phase match
2
No interpolation
8x oversample
fDAC = fDATA = 240MHz
Push image to fIMAGE = 210MHz
Lower order filter
Filter gain/phase match
High clock rate
High data rate
3
4x interpolation
fDAC = 286.4MHz, fDATA = 71.6MHz
Passband attenuation = 0.1dB
Push image to 256MHz
Low data rate
Low order filter
60dB image attenuate
Filter gain/phase match
None
Table 4. Benefits of Interpolation
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