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AD9154-EBZ、AD9154-M6720-EBZ和AD9154-FMC-EBZ支持AD9154,它是一款四通道、16位、高动态范围数模转换器(DAC),提供2.4 GSPS最高采样速率,可以在基带模式下产生高达奈奎斯特频率的多载波。 AD9154具有针对直接变频传输应用进行优化的特性,包括复数数字调制、输入信号功率检测以及增益、相位与失调补偿。 DAC输出经过优化,可以与ADI公司的ADRF672x射频正交调制器无缝接口。在混频模式下,AD9154 DAC可在二阶和三阶奈奎斯特区内重构载波。 串行端口接口(SPI)允许对内部参数进行编程和回读。 满量程输出电流可以在4 mA至20 mA范围内进行编程。Feature
- Supports input data rates up to 1 GSPS
- Proprietary, low spurious and distortion design
- Single carrier LTE 20 MHz bandwidth (BW),ACLR = 77 dBc at 180 MHz IF
- Six carrier GSM IMD = 78 dBc, 600 kHz carrier spacing at 180 MHz IF
- SFDR = 72 dBc at 180 MHz IF, −6 dBFS single tone
- Flexible 8-lane JESD204B interface
- Multiple chip synchronization
- Fixed latency
- Data generator latency compensation
- Input signal power detection
- High performance, low noise phase-locked loop (PLL) clock multiplier
- Digital inverse sinc filter
- Digital quadrature modulation using a numerically controlled oscillator (NCO)
- Nyquist band selection—mix mode
- Selectable 1×, 2×, 4×, and 8× interpolation filters
- Low power: 2.11 W at 1.6 GSPS, full operating conditions
- 88-lead, exposed pad LFCSP
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