DAC38RF83IAAVR - Dual 14-Bit 9-GSPS RF-Sampling DAC | TI
부품 번호: DAC38RF83IAAVR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $1185 | $1,185.00 |
| 10 | $1112 | $11,120.00 |
| 100 | $1049 | $104,900.00 |
| 500 | $985 | $492,500.00 |
| 1,000 | $921 | $921,000.00 |
DAC38RF83IAAVR 개요
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.
드롭인 대체품: DAC38RF83IAAVR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: DAC38RF83IAAVR (동일 폼 팩터 및 풋프린트) — 차이점: Architecture, On-Chip PLL, Output Frequency Range, Output Type, RoHS Status.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
DAC38RF83IAAV
✅ 드롭인✓ 재고 있음
$165 / 개
데이터시트 보기 →DAC38RF82IAAV
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DAC38RF84IAAV
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DAC38RF89IAAV
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DAC38RF83IAAVR 최대 정격 & 전기적 특성
| 분해능 | 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 |
| 출력 유형 | Single-ended or differential |
| Architecture | RF-sampling current-steering |
| 패키지 | 144-FCBGA (10x10 mm) |
| 동작 온도 | -40C to +85C |
| 실장 유형 | Surface Mount |
| Packaging | Tape & Reel (R suffix) |
| Part Status | Active |
| RoHS 상태 | Compliant |
DAC38RF83IAAVR 144-fcbga (10x10 mm) 핀 구성 가이드
DAC38RF83IAAVR(144-fcbga (10x10 mm) 패키지)의 핀 구성입니다. 이 아날로그 부품에는 입력, 출력, 전원 공급 핀이 있습니다. 오프셋 널, 보상, 인에이블 핀 구성은 제조사 데이터시트를 참조하십시오. 신호 컨디셔닝 및 증폭기 회로에 이상적입니다.
다음에 대한 상세 핀아웃 데이터 없음: DAC38RF83IAAVR.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
DAC38RF83IAAVR 적합 용도: 6 애플리케이션s: 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.
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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.
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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.
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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.
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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.
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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.
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추천 제품 요약
엔지니어링 참조 데이터: DAC38RF83IAAVR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 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 |
주요 차별점
- True dual-channel RF synthesis in one package (vs DAC38RF82IAAV)
- Identical device with tray packing option (vs DAC38RF83IAAV)
- 6 GHz and 9 GHz PLL modes (vs DAC38J84IAAV)
설계 노트
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.
규정 준수 정보
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.
