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| 型号： | MAX5886EGK+TD |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/18页 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT 3.3V 500MSPS 68-QFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 设置时间： | 11ns |
| 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）： | 130mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 68-VFQFN 裸露焊盘 |
| 供应商设备封装： | 68-QFN 裸露焊盘（10x10） |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 2 电流，单极 |
| 采样率（每秒）： | 500M |
MAX5886
3.3V, 12-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
12
______________________________________________________________________________________
If a single-ended unipolar output is desirable, IOUTP
should be selected as the output, with IOUTN ground-
ed. However, driving the MAX5886 single ended is not
recommended since additional noise is added (from
the ground plane) in such configurations.
The distortion performance of the DAC depends on the
load impedance. The MAX5886 is optimized for a 50
double termination. It can be used with a transformer
output as shown in Figure 7 or just one 50
resistor
from each output to ground and one 50
resistor
between the outputs. This produces a full-scale output
power of up to 0dBm depending on the output current
setting. Higher termination impedance can be used at
the cost of degraded distortion performance and
increased output noise voltage.
Adjacent Channel Leakage Power Ratio
(ACLR) Testing for CDMA- and
W-CDMA-Based Base Station
Transceiver Systems (BTS)
The transmitter sections of BTS applications serving
CDMA and W-CDMA architectures must generate carri-
ers with minimal coupling of carrier energy into the
adjacent channels. Similar to the GSM/EDGE model
(see the Multitone Testing for GSM/EDGE Applications
section), a transmit mask (Tx mask) exists for this appli-
cation. The spread-spectrum modulation function
applied to the carrier frequency generates a spectral
response, which is uniform over a given bandwidth (up
to 4MHz) for a W-CDMA-modulated carrier.
A dominant specification is ACLR, a parameter which
reflects the ratio of the power in the desired carrier
band to the power in an adjacent carrier band. The
specification covers the first two adjacent bands, and is
measured on both sides of the desired carrier.
According to the transmit mask for CDMA and W-CDMA
architectures, the power ratio of the integrated carrier
channel energy to the integrated adjacent channel
energy must be >45dB for the first adjacent carrier slot
(ACLR 1) and >50dB for the second adjacent carrier
slot (ACLR 2). This specification applies to the output of
the entire transmitter signal chain. The requirement for
only the DAC block of the transmitter must be tighter,
with a typical margin of >15dB, requiring the DAC’s
ACLR 1 to be better than 60dB. Adjacent channel leak-
age is caused by a single spread-spectrum carrier,
which generates intermodulation (IM) products
MAX5886
T2, 1:1
T1, 1:1
VOUT, SINGLE ENDED
WIDEBAND RF TRANSFORMER T2
PERFORMS THE DIFFERENTIAL TO
SINGLE-ENDED CONVERSION.
50
100
50
IOUTP
IOUTN
B0–B11
12
AVDD
DVDD
VCLK
AGND
DGND
CLKGND
Figure 7. Differential to Single-Ended Conversion Using a Wideband RF Transformer
MAX5886
50
100
50
IOUTP
IOUTN
B0–B11
12
AVDD
DVDD
VCLK
AGND
DGND
CLKGND
OUTP
OUTN
Figure 8. MAX5886 Differential Output Configuration
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5886EVKIT | 功能描述:数模转换器- DAC Evaluation Kit for the MAX5886 MAX5887 MAX5888 RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| MAX5887EGK | 制造商:Maxim Integrated Products 功能描述:3.3V, 14-BIT, 500MBPS HIGH DYNAMIC PERFORMAN - Rail/Tube |
| MAX5887EGK/GG8 | 制造商:Maxim Integrated Products 功能描述:3.3V, 14-BIT, 500MBPS HIGH DYNAMIC PERFORMAN - Rail/Tube |
| MAX5887EGK+D | 功能描述:数模转换器- DAC 14-Bit 500Msps DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| MAX5887EGK+TD | 功能描述:数模转换器- DAC 14-Bit 500Msps DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
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