AD9868: 宽带调制解调器混合信号前端 |
AD9868是一款混合信号前端(MxFE®) IC，适合要求发射路径和接收路径功能的收发器应用，数据速率最高可达80 MSPS。该器件是AD9865的低成本、引脚兼容版本，去除了电流放大器(IAMP) IOUTP功能，并将PLL VCO工作频率范围限制在80 MHz至200 MHz。
该器件非常适合半双工和全双工应用。该数字接口极为灵活，可与支持半双工或全双工数据传输的数字后端实现简单接口，因此AD9868经常用来取代分立式ADC和DAC解决方案。省电模式能够降低个别功能模块的功耗，或者在半双工应用中关断未使用的模块。串行端口接口(SPI)允许对许多功能模块进行软件编程。片内PLL时钟乘法器和频率合成器提供所有需要的内部时钟，以及单晶振或时钟源 ...More
AD9868是一款混合信号前端(MxFE®) IC，适合要求发射路径和接收路径功能的收发器应用，数据速率最高可达80 MSPS。该器件是AD9865的低成本、引脚兼容版本，去除了电流放大器(IAMP) IOUTP功能，并将PLL VCO工作频率范围限制在80 MHz至200 MHz。
该器件非常适合半双工和全双工应用。该数字接口极为灵活，可与支持半双工或全双工数据传输的数字后端实现简单接口，因此AD9868经常用来取代分立式ADC和DAC解决方案。省电模式能够降低个别功能模块的功耗，或者在半双工应用中关断未使用的模块。串行端口接口(SPI)允许对许多功能模块进行软件编程。片内PLL时钟乘法器和频率合成器提供所有需要的内部时钟，以及单晶振或时钟源的外部时钟。
发射信号路径由2×/4×低通插值滤波器、10位TxDAC和线路驱动器组成。在输入数据速率为80 MSPS时，发射路径信号带宽可以高达34 MHz。TxDAC提供差分电流输出，可将该输出直接导引至外部负载，或导引至内部低失真电流放大器(IAMP)，后者能够提供17 dBm峰值信号功率。发射功率可以进行数字控制，范围为19.5 dB，步进为0.5 dB。
接收路径由可编程放大器(RxPGA)、可调谐低通滤波器(LPF)和10位ADC组成。低噪声RxPGA具有−12 dB至+48 dB的可编程增益范围，步进为1 dB；对于36 dB以上的增益设置，其折合到输入端的噪声低于3 nV/√Hz。接收路径LPF截止频率可以在15 MHz至35 MHz范围内设置，或者简单地予以旁路。10位ADC可以在最高至80 MSPS范围内实现出色的动态性能。RxPGA和ADC均能提供可调整的功耗，以实现功耗/性能优化。
AD9868可以为许多宽带调制解调器提供高度集成的解决方案。它采用节省空间的16引脚LFCSP封装，额定温度范围为−40°C至+85°C商用温度范围。
应用
| Part# | RxTx Function | Channel BW MHz | IF or RF Range MHz | Primary Application | Supply V | Product Description | Price* (1000-4999) | Resolution (Bits) | # Chan | T-Put Rate |
|---|---|---|---|---|---|---|---|---|---|---|
| AD9863 | Bband Quadrature CODEC | n/a | n/a | Broadband Wireless | Single(+3), Single(+3.3) | Mixed-Signal Front-End (MxFE) Baseband Transceiver for Broadband Applications | $21.68 | 12 | 2 | 50MSPS |
| ADF9010 | Analog RF Front End | n/a | 840-960 | 900 MHz RFID/ISM | Single(+3) | 900MHz ISM Band Analog RF Front End | - | n/a | n/a | n/a |
| ADRF6601 | IF-to-Bits Rx Subsys | 500 | 300-2500 | Receiver | Single(+5) | 750 MHz to 1160 MHz Rx Mixer with Integrated Fractional-N PLL and VCO | - | - | - | - |
| ADRF6602 | IF-to-Bits Rx Subsys | 500 | 1000-3100 | Receiver | Single(+5) | 1550 MHz to 2150 MHz Rx Mixer with Integrated Fractional-N PLL and VCO | - | - | - | - |
| ADRF6603 | IF-to-Bits Rx Subsys | 500 | 1100-3200 | Receiver | Single(+5) | 2100 MHz to 2600 MHz Rx Mixer with Integrated Fractional-N PLL and VCO | - | - | - | - |
| ADRF6604 | IF-to-Bits Rx Subsys | 500 | 1200-3600 | Receiver | Single(+5) | 2500 MHz to 2900 MHz Rx Mixer with Integrated Fractional-N PLL and VCO | - | - | - | - |
| ADRF6701 | Bits-to-RF/IF Tx Subsys | 500 | 400-1300 | Transmitter | Single(+5) | 750 MHz to 1160 MHz Quadrature Modulator with Integrated Fractional-N PLL and VCO | - | - | - | - |
| ADRF6702 | Bits-to-RF/IF Tx Subsys | 500 | 1200-2400 | Transmitter | Single(+5) | 1550 MHz to 2150 MHz Quadrature Modulator with Integrated Fractional-N PLL and VCO | - | - | - | - |
| ADRF6703 | Bits-to-RF/IF Tx Subsys | 500 | 1600-2600 | Transmitter | Single(+5) | 2100 MHz to 2600 MHz Quadrature Modulator with Integrated Fractional-N PLL and VCO | - | - | - | - |
| ADRF6704 | Bits-to-RF/IF Tx Subsys | 500 | 2200-3000 | Transmitter | Single(+5) | 2500 MHz to 2900 MHz Quadrature Modulator with Integrated Fractional-N PLL and VCO | - | - | - | - |
| ADRF6750 | Quadrature Modulator | n/a | 950 to 1575 | VSAT Terminals | - | 950 MHz to 1575 MHz Quadrature Modulator with Integrated Fractional-N PLL and VCO | - | - | - | - |
| AD9868 | Bband CODEC | - | - | Broadband Wireline, Home Networking | Multi(+3.3Anlg, +3.3Dig) | 10-Bit DAC/80 MSPS, 10-Bit ADC, Mixed-Signal Front-End for Broadband Modem Applications | - | 10 | 1 | 80MSPS |
| AD9865 | Bband CODEC | 35 | DC-40 | Broadband Wireline, Home Networking | Single(+3.3) | 10-Bit DAC/80 MSPS, 10-Bit ADC, Mixed-Signal Front-End for Broadband Modem Applications | $10.07 | 10 | 1 | 80MSPS |
| AD9869 | Bband CODEC | 54 | DC-40 | Broadband Wireline, Home Networking | Multi(+3.3Anlg, +3.3Dig), Single(+3.3) | 12-Bit DAC/80 MSPS, 12-Bit ADC, Mixed-Signal Front-End for Broadband Modem Applications | $18.27 | 12 | 1 | 80MSPS |
| AD9866 | Bband CODEC | 35 | DC-40 | Broadband Wireline, Home Networking | Single(+3.3) | 12-Bit DAC/80 MSPS 12-Bit ADC, Mixed-Signal Front-End for Broadband Modem Applications | $18.77 | 12 | 1 | 80MSPS |
| AD9861-50 | Bband Quadrature CODEC | 25 | DC-40 | Broadband Wireless | Single(+3), Single(+3.3) | Dual 10-Bit DAC/Dual 50 MSPS ADC Mixed-Signal Front-End (MxFE) For Broadband Comms Apps | $10.84 | 10 | 2 | 50MSPS |
| AD9861-80 | Bband Quadrature CODEC | 40 | DC-40 | Broadband Wireless | Single(+3), Single(+3.3) | Dual 10-Bit DAC/Dual 80 MSPS ADC Mixed-Signal Front-End (MxFE) For Broadband Comms Apps | $10.84 | 10 | 2 | 80MSPS |
| AD9862 | Bband Quadrature CODEC | 32 | DC-100 | Broadband Wireless | Single(+3.3) | Dual 14-Bit DAC/Dual 12-Bit ADC Mixed Sig Front-End (MxFE) for Bband Comms, Rx&Tx PGA, Digital SSB | $30.11 | 12 | 2 | 64MSPS |
| AD9860 | Bband Quadrature CODEC | 32 | DC-100 | Broadband Wireless | Single(+3.3) | Dual 12-Bit DAC/Dual 10-Bit ADC Mixed Sig Front-End (MxFE) for Bband Comms, Rx&Tx PGA, Digital SSB | $13.90 | 10 | 2 | 64MSPS |
| AD6600 | IF-to-Bits Rx Subsys | 5 to 10 | 70-250 | Wireless Infrastructure | Multi(+3.3, +5), Single(+5) | 11-Bit, 1-Channel 20MSPS, or 2-Channel 10 MSPS Gain-Ranging ADC with RSSI | $38.96 | 11 | 2 | 20MSPS |
| AD9864 | IF-to-Bits Rx Subsys | 0.007 to 0.270 | 10-300 | Narrowband Radio, Portable & Mobile Radio | Single(+3), Single(+3.3) | 24-Bit Bandpass Sigma-Delta ADC/IF Digitizing Subsystem | $10.07 | 24 | 1 | 375kSPS |
| AD9874 | IF-to-Bits Rx Subsys | 0.007 to 0.270 | 10-300 | Narrowband Radio, Portable & Mobile Radio | Single(+3), Single(+3.3) | 24-Bit Bandpass Sigma-Delta ADC IF Digitizing Subsystem | $15.14 | 24 | 1 | 541.5kSPS |
| AD6650 | IF-to-Bits Rx Subsys | 3.5 | 70-300 | Wireless Infrastructure | Single(+3), Single(+3.3) | 16/24-Bit, 1 MSPS, Diversity IF-to-Baseband GSM/EDGE Narrowband Receiver | $20.64 | 24 | 2 | 1MSPS |
| AD9969 | Multi-Chan Bband CODEC | 8 | DC-70 | Cable Modem/Set Top Box | Single(+3.3) | 3.3 V CMOS MxFE Mixed Signal Front End for broadband Set Top Box And Cable Modem applications | $14.42 | 12 | 3 | 29MSPS |
| AD9878 | Multi-Chan Bband CODEC | 8 | DC-70 | Cable Modem/Set Top Box | Single(+3.3) | Dual 12-Bit, 29 MSPS Direct IF ADC/12-Bit Direct IF DAC, Mixed-Signal Front-End for Broadband Apps | $13.68 | 12 | 4 | 29MSPS |
| AD9879 | Multi-Chan Bband CODEC | 8 | DC-70 | Cable Modem/Set Top Box | Single(+3.3) | 12-Bit Mixed-Signal Front-End for Set Top Box & Cable Modem Applications | $12.12 | 12 | 5 | 29MSPS |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
