Analog Devices Inc. AD9234 12 位双通道模数转换器
亚德诺半导体 亚德诺半导体 AD9234 12位双通道模数转换器是一款经优化的 1GSPS 双通道模数转换器，以很小的封装实现宽输入带宽、高采样速率、出色的线性和低功耗。AD9234 内置片内缓冲器和采样保持电路，专门针对低功耗、小尺寸和易用性而设计。该设计经优化，以很小的封装实现宽输入带宽、高采样速率、出色的线性和低功耗。其双模数转换器内核采用多级、差分流水线架构，并集成了输出纠错逻辑。每一模数转换器包括宽带宽缓冲输入，支持用户可选的各种输入范围。集成基准电压源可简化设计。各模数转换器的数据输出内部连接到可选 2 分频时钟。
特性
- JESD204B (Subclass 1) coded serial digital outputs
- 1.5W total power per channel at 1GSPS (default settings)
- SFDR = 79dBFS at 340MHz
- SNR = 63.4dBFS at 340MHz (AIN = −1.0dBFS)
- ENOB = 10.4 bits at 10MHz
- DNL = ±0.16LSB
- INL = ±0.35LSB
- Noise density = −151dBFS/Hz at 1GSPS
- 1.25V, 2.5V, and 3.3V dc supply operation
- Flexible termination impedance
- 400Ω, 200Ω, 100Ω, and 50Ω differential
- No missing codes
- Internal ADC voltage reference
- 2GHz usable analog input full power bandwidth
- 95dB channel isolation/crosstalk
- Amplitude detect bits for efficient AGC implementation
- Differential clock input
- Optional decimate-by-2 DDC per channel
- Differential clock input
- Integer clock divide by 1, 2, 4, or 8
- Flexible JESD204B lane configurations
- Small signal dither
应用
- Communications
- Diversity multiband, multimode digital receivers
- 3G/4G, TD-SCDMA, W-CDMA, GSM, LTE
- Point-to-point radio systems
- Digital predistortion observation path
- General-purpose software radios
- Ultrawideband satellite receiver
- Instrumentation (spectrum analyzers, network analyzers, integrated RF test solutions)
- Digital oscilloscopes
- High speed data acquisition systems
- DOCSIS 3.0 CMTS upstream receive paths
- HFC digital reverse path receivers
Functional Block Diagram
发布日期: 2014-10-06
| 更新日期: 2022-03-11