MAX5894EGK+D【PDF 19/32 页】IC DAC 14BIT DUAL 500MSPS 68-QFN

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MAX5894

sources directly to the device without external resistors

to define the DC level. The input resistance of CLKP

and CLKN is 5k

A convenient way to apply a differential signal is with a

balun transformer as shown in Figure 15. Alternatively,

these inputs may be driven from a CMOS-compatible

clock source, however it is recommended to use

sine-wave or AC-coupled differential ECL/PECL drive for

best dynamic performance.

Output Interface (OUTI, OUTQ)

The MAX5894 outputs complementary currents (OUTIP,

OUTIN, OUTQP, and OUTQN) that can be utilized in a

differential configuration. Load resistors convert these

two output currents into a differential output voltage.

The differential output between OUTIP (OUTQP) and

OUTIN (OUTQN) can be converted to a single-ended

output using a transformer or a differential amplifier.

Figure 16 shows a typical transformer-based applica-

tion circuit for generation of IF output signals. In this

configuration, the MAX5894 operates in differential

mode, which reduces even-order harmonics, and

increases the available output power. Pay close atten-

tion to the transformer core saturation characteristics

when selecting a transformer. Transformer core satura-

tion can introduce strong second harmonic distortion,

especially at low output frequencies and high signal

amplitudes. It is recommended to connect the trans-

former center tap to ground.

14-Bit, 500Msps, Interpolating and Modulating

Dual DAC with CMOS Inputs

______________________________________________________________________________________

Figure 15. Single-Ended-to-Differential Clock Conversion Using

a Balun Transformer

SINGLE-ENDED

IINPUT

1:1 RATIO

MINI-CIRCUITS

ADTL1-12

24.9

CLKP

CLKN

100nF

MAX5894

Figure 16. Differential-to-Single-Ended Conversion Using Wideband RF Transformers

MAX5894

OUTQP

OUTQN

QDAC

1:1

100

VQOUT, SINGLE-ENDED

OUTIP

OUTIN

IDAC

1:1

100

VIOUT, SINGLE-ENDED

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MAX5894EGK+TD 功能描述:数模转换器- DAC 14-Bit 2Ch 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

MAX5894EGK-D 功能描述:数模转换器- 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

MAX5894EGK-TD 功能描述:数模转换器- 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

MAX5894EVCMOD2 功能描述:数模转换器- DAC Evaluation Kit for the MAX5893/MAX5894/MAX5895 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

MAX5894EVKIT 功能描述:数模转换器- DAC Evaluation Kit for the MAX5893/MAX5894/MAX5895 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

MAX5895EGK+D 功能描述:数模转换器- DAC 16-Bit 2Ch 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

MAX5895EGK+TD 功能描述:数模转换器- DAC 16-Bit 2Ch 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

MAX5895EGK-D 功能描述:数模转换器- 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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