DAC38RF83IA*** 双通道 14 位 9.0GSPS 数模转换器
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描述
DAC38RFxx 是一款高性能、双通道/单通道、14 位、9GSPS RF 采样数模转换器 (DAC),能够合成 0GHz 至 4.5GHz 范围内的宽带信号。凭借高动态范围,DAC38RFxx 系列器件可为无线***生成输出频率高达 4GHz 的 3G/4G 信号。
该器件具有一个低功耗 JESD204B 接口,其通道多达 8 条,***高位率为 12.5Gbps/通道,复合输入采样率为 1.25GSPS/通道。DAC38RFxx 在每个 DAC 中提供两个数字上变频器,具有多种插值速率及一个带有频率较为灵活的*** NCO 的数字正交调制器。可选低抖动 PLL/VCO 通过允许使用低频基准时钟简化 DAC 时钟的生成。
特性
14 位分辨率
***大采样率:9GSPS
主要技术规格:
2.1GHz 频率下的射频满量程输出功率:
DAC38RF80/90/84:0dBm
DAC38RF83/93/85:3dBm(平衡-非平衡转换器匝数比为 2:1)
频谱性能(片上锁相环 (PLL),DIFF):
fDAC = 5898.24MSPS,fOUT = 2.14GHz
WCDMA 邻载波泄漏比 (***R):75dBc
WCDMA 备选 ***R:77dBc
fDAC = 8847.36MSPS,fOUT = 3.7GHz
20MHz LTE ***R:63dBc
fDAC = 9GSPS,fOUT = 1.8GHz
IMD3 = 70dBc(–6dBFS,10MHz 音调间隔)
噪声频谱密度 (NSD):-157dBc/Hz
每个 DAC 配有双频带数字上变频器
***高输入速率:单频带 - 1250MSPS 复合速率;双频带:复合速率为 625MSPS/通道
6、8、10、12、16、18、20 或 24 倍插值运算
分辨率为 48 位的 4 个***数控振荡器 (NCO)
JESD204B 接口
子类 1 支持多芯片同步
***高通道速率:12.5Gbps
集成平衡-非平衡转换器的单端输出(DAC38RF80/90/84) 涵盖的频率范围为 700MHz – 3800MHz
具有旁路功能的内部 PLL 和压控振荡器 (VCO)
fC(VCO) = 5.9GHz 或 8.9GHz
功耗:每通道 1.4W - 2.2W
电源:–1.8V、1.0V、1.8V
封装:10mm x 10mm BGA,间距为 0.8 mm,具有 144 个焊球
深圳市国宇航芯科技有限公司
项目销售工程师 黄云艳
手机 13632767652
***1256290132
另附英文资料
Description
The DAC38RFxx is a family of high-performance, dual/single-channel, 14-bit, 9-GSPS, RF-sampling digital-to-analog converters (DACs) that are capable of synthesizing wideband signals from 0 to 4.5 GHz. A high dynamic range allows the DAC38RFxx family to generate signals for a wide range of applicati*** including 3G/4G signals for wireless base-stati***.
The devices feature a low-power JESD204B Interface with up to 8 lanes, and provides a maximum bit rate and input data rate of 12.5 Gbps and 1.25 GSPS complex per channel respectively. The DAC38RFxx provides two digital up-converters per channel, with multiple opti*** for interpolation rates. A digital quadrature modulator with independent, frequency flexible NCOs are ***ailable to support multi-band operation. An optional low-jitter PLL/VCO simplifies the DAC sampling clock generation by allowing use of a lower frequency reference clock.
Features
14-Bit Resolution
Maximum DAC Sample Rate: 9 GSPS
Key Specificati***:
RF Full Scale Output Power at 2.1 GHz:
DAC38RF80/90/84: 0 dBm
DAC38RF83/93/85: 3 dBm (with 2:1 balun)
Spectral Performance(on-chip PLL, DIFF):
fDAC = 5898.24 MSPS, fOUT = 2.14 GHz
WCDMA ***R: 75 dBc
WCDMA alt-***R: 77 dBc
fDAC = 8847.36 MSPS, fOUT = 3.7 GHz
20 MHz LTE ***R: 63 dBc
fDAC = 9 GSPS, fOUT = 1.8 GHz
IMD3 = 70 dBc (–6 dBFS, 10 MHz tone spacing)
NSD = –157 dBc/Hz
Dual-Band Digital Up-converter per DAC
6, 8, 10, 12, 16, 18, 20 or 24x Interpolation
4 Independent NCOs with 48-Bit Resolution
JESD204B Interface, Subclass 1
Support for Multi-chip Synchronization
Maximum Lane Rate: 12.5 Gbps
Single-Ended Output with Integrated Balun (DAC38RF80/90/84) Covering 700–3800 MHz
Internal PLL and VCO with Bypass
fC(VCO) = 5.9 or 8.9 GHz
Power Dissipation: 1.4 – 2.2 W/ch
Power Supplies: –1.8 V, 1 V, 1.8 V
Package: 10 x 10 mm BGA, 0.8 mm Pitch, 144-Balls
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