DAC38RF83IAAVR - Dual 14-Bit 9-GSPS RF-Sampling DAC | TI
MPN： DAC38RF83IAAVR ✓ 啟用中DAC38RF83IAAVR 概覽
An RF-sampling DAC is a data-converter device that generates analog output signals directly at radio frequencies, eliminating the need for multiple upconversion mixer stages in the transmit chain. Within the signal-chain hierarchy, the DAC38RF83 sits in the data converters -> digital-to-analog converters -> RF-sampling DAC category and forms the heart of modern wideband transmitter architectures for wireless infrastructure and radar.
Key features include dual-channel 14-bit resolution with a 9 GSPS maximum update rate, on-chip 6x-24x interpolation filters that relax data-interface speed requirements, and an integrated PLL/VCO clocking multiplier supporting 6 GHz and 9 GHz reference modes. The JESD204B interface with up to 8 lanes simplifies connectivity to FPGAs, and both single-ended and differential output options are supported.
Architecturally, the DAC38RFxx family combines a high-dynamic-range current-steering DAC core with digital signal processing blocks, including complex and real mixing (NCO), digital upconversion, and programmable interpolation. The RF-sampling approach supports 3G/4G/5G wideband carrier aggregation with high SFDR performance.
Typical applications include wireless base-station transmitters (3G/4G/5G), wideband radar and electronic warfare signal generation, cable headend and broadband signal synthesis, and test-and-measurement arbitrary waveform generation.
Design consideration: maintain clean low-noise clocking and adequate thermal design in the FCBGA package; the high output swing at RF frequencies demands careful RF output balun/filter network selection per the datasheet application section.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with pricing referenced as of 2026-09-03.
直接替換替代品，適用於 DAC38RF83IAAVR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DAC38RF83IAAVR （相同外形與佔位） — 差異在於 Architecture, On-Chip PLL, Output Frequency Range, Output Type, RoHS Status.
DAC38RF83IAAV
✅ 直接替換聯絡詢價
查看資料表 →DAC38RF82IAAV
✅ 直接替換📋 參考替代品（不在目錄中）
DAC38RF84IAAV
✅ 直接替換📋 參考替代品（不在目錄中）
DAC38RF89IAAV
✅ 直接替換📋 參考替代品（不在目錄中）
DAC38RF83IAAVR 最大額定值與電氣特性
| 解析度 | 14 bit |
| Number of DAC Channels | 2 |
| Maximum Update Rate | 9 GSPS |
| Output Frequency Range | 0 to 4.5 GHz |
| Interpolation | 6x to 24x |
| Integrated PLL | 6 GHz and 9 GHz PLL |
| Data Interface | JESD204B |
| 輸出類型 | Single-ended or differential |
| Architecture | RF-sampling current-steering |
| 封裝 | 144-FCBGA (10x10 mm) |
| 工作溫度 | -40C to +85C |
| 安裝類型 | Surface Mount |
| Packaging | Tape & Reel (R suffix) |
| Part Status | Active |
| RoHS 狀態 | Compliant |
DAC38RF83IAAVR 144-fcbga (10x10 mm) 腳位配置指南
DAC38RF83IAAVR（144-fcbga (10x10 mm) 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： DAC38RF83IAAVR.
請參閱 資料表 以查看完整腳位配置。
典型應用
DAC38RF83IAAVR 適用於 6 應用s: 5G/4G Wireless Base-Station Transmitters, Wideband Radar and Electronic Warfare Signal Generation, Test and Measurement Arbitrary Waveform Generation, Cable and Broadband Signal Synthesis, Satellite Communications Upconverters, FPGA-Based SDR Transmit Platforms.
5G/4G Wireless Base-Station Transmitters
The DAC38RF83IAAVR fits wireless base-station transmit chains because its 9 GSPS update rate and 0-to-4.5 GHz direct RF output synthesize wideband, carrier-aggregated 3G/4G/5G waveforms without mixer upconversion stages. The 6x-24x interpolation lets a low-rate JESD204B FPGA link feed an RF-speed DAC, and the integrated 6 GHz/9 GHz PLL removes an external high-frequency multiplier. Placed after the FPGA transceivers with a differential RF output network and balun, it delivers the high dynamic range the DAC38RFxx datasheet cites for multi-carrier radio. Trade-off: RF-sampling operation demands careful clock jitter and thermal management at full rate.
推薦
Wideband Radar and Electronic Warfare Signal Generation
For radar and EW transmit exciter paths, the DAC38RF83IAAVR generates chirp and agile wideband waveforms directly at L-, S-, C-band and beyond using its 0-to-4.5 GHz RF-sampling output. The dual-channel architecture supports simultaneous I/Q generation with digital upconversion via the on-chip NCO and mixer, achieving the high dynamic range required for clutter-limited detection per the TI DAC38RFxx datasheet. The -40C to +85C industrial rating suits outdoor and conformal installations. Design consideration: waveform spectral purity depends strongly on reference clock phase noise, so low-jitter clocking must be budgeted alongside DAC SFDR.
推薦
Test and Measurement Arbitrary Waveform Generation
In AWG and RF vector signal generator front ends, the DAC38RF83IAAVR provides 14-bit resolution at 9 GSPS, letting instruments produce pulses, modulated carriers, and multi-tone signals up to 4.5 GHz natively. The JESD204B interface connects cleanly to FPGA waveform engines, and the 6x-24x interpolation filters suppress images, easing analog reconstruction filter design. The dual-channel mode enables differential or I/Q output instruments. Quantified benefit: direct RF synthesis removes mixer image and LO-leak artifacts, improving spectral purity; the trade-off is higher power and cost than IF-speed DACs, justified in premium instrumentation.
推薦
Cable and Broadband Signal Synthesis
Cable headend and broadband distribution equipment benefit from the DAC38RF83IAAVR's ability to synthesize multi-channel and DOCSIS-class wideband signals across its 0-to-4.5 GHz output span at 9 GSPS. The high dynamic range of the DAC38RFxx family cited by TI supports high modulation-order waveforms, while on-chip mixing and interpolation let a single device replace concatenated DAC-plus-mixer stages, reducing component count and calibration effort. Outputs can be configured single-ended or differential to match hybrid or balun-coupled line drivers. Performance consideration: output power flatness at band edges must be verified in the analog network design.
推薦
Satellite Communications Upconverters
Satcom ground terminals and transponders use the DAC38RF83IAAVR to generate IF and direct-L-band modulated carriers with 14-bit precision at up to 9 GSPS, supporting high-order QPSK through 256APSK waveforms. The on-chip PLL clocked at 6 GHz or 9 GHz simplifies the clocking tree in space-constrained terminals, and the JESD204B link provides deterministic latency needed for burst-mode transmissions. The industrial temperature grade and FCBGA mechanical robustness suit outdoor units. Design tip: SYSREF and JESD204B subclass timing must be implemented for phase-coherent multi-carrier operation across channels.
推薦
FPGA-Based SDR Transmit Platforms
Software-defined radio developers pair the DAC38RF83IAAVR with JESD204B-capable FPGAs to build flexible wideband transmit platforms. The 8-lane-class JESD204B link, 6x-24x interpolation, and digital NCO mixing move most waveform processing into the digital domain, letting a single PCB cover HF through C-band by changing digital configuration rather than analog hardware. The 144-FCBGA footprint integrates cleanly on 10x10 mm land patterns with standard BGA assembly. Consideration: the premium unit price (about 1185 USD as of 2026-09-03) positions this part for professional SDR, not hobby designs.
推薦
推薦產品摘要
工程參考資料，適用於 DAC38RF83IAAVR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | DAC38RF83IAAV | DAC38RF82IAAV | DAC38RF84IAAV | DAC38RF89IAAV |
|---|---|---|---|---|---|
| Package | 144-FCBGA (10x10) | 144-FCBGA (10x10) - same | 144-FCBGA (10x10) - same | 144-FCBGA (10x10) - same | 144-FCBGA - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit |
| Maximum Update Rate | 9 GSPS | 9 GSPS | 9 GSPS | 9 GSPS | 9 GSPS |
| Output Frequency Range | 0 to 4.5 GHz | 0 to 4.5 GHz | 0 to 4.5 GHz | 0 to 4.5 GHz | 0 to 4.5 GHz |
| Interpolation | 6x-24x | 6x-24x | 6x-24x | 6x-24x | 6x-24x |
| Integrated PLL | 6 GHz and 9 GHz | 6 GHz and 9 GHz | 6 GHz and 9 GHz | 6 GHz and 9 GHz | 6 GHz and 9 GHz |
| Data Interface | JESD204B | JESD204B | JESD204B | JESD204B | JESD204B |
主要差異化特點
- True dual-channel RF synthesis in one package (對比DAC38RF82IAAV)
- Identical device with tray packing option (對比DAC38RF83IAAV)
- 6 GHz and 9 GHz PLL modes (對比DAC38J84IAAV)
設計說明
RF-sampling DAC output quality is dominated by clock phase noise: an RMS jitter budget must be allocated so that jitter-limited SNR (approximately 20*log10(f_out/f_jitter)) does not degrade the 14-bit core. Use a low-noise oscillator and route the DAC38RF83 clock differentially with impedance control, keeping the SYSREF network length-matched to the JESD204B lanes for deterministic latency (subclass operation).
The 144-FCBGA (10x10 mm) requires a dense via field under the package for all power and ground balls; use a minimum of one via per power ball and stitch the ground plane generously to handle high transient current at 9 GSPS operation. Follow the DAC38RFxx datasheet PCB layout guidelines for stackup, ball escape routing, and keep JESD204B lanes as length-matched 100-ohm differential pairs.
Estimated: at full-rate dual-channel RF operation the device dissipates power in the multi-watt class (exact figure per datasheet); with a typical FCBGA theta-JA on a standard multilayer board, junction rise at +85C ambient can approach limits, so use 2-oz copper ground planes and thermal vias, and verify die temperature with the on-chip monitoring or calculation per datasheet thermal section before production sign-off.
合規資訊
RoHS compliance and lead-free construction indicated by distributor listings (DigiKey, PCBElectronics). REACH and conflict-minerals status should be confirmed via the TI Quality and Environmental portal.
