TDA8763M/3/C4 - 10-Bit 30 MSPS Video ADC | NXP Semiconductors
부품 번호: TDA8763M/3/C4 ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $9.85 | $985.00 |
| 500 | $8.4 | $4,200.00 |
| 1,000 | $7.15 | $7,150.00 |
TDA8763M/3/C4 개요
What is a video-speed ADC? A video-speed Analog-to-Digital Converter is a specialized data converter that digitizes analog signals at sample rates sufficient to capture baseband video bandwidth (typically 10-30 MSPS for standard definition, up to 150 MSPS for HD). These converters sit within the broader signal chain hierarchy of: ADC -> data converter -> mixed-signal IC -> semiconductor. Video ADCs typically include integrated track-and-hold, reference buffer, and digital output drivers to interface directly with video ASICs, FPGAs, or DSPs.
Key features of the TDA8763M/3/C4 include a single 1-input sigma-delta architecture with TTL/CMOS-compatible digital I/O, low-level sine wave clock input compatibility, integrated reference regulator reducing external component count, and low-power operation suitable for portable or compact embedded designs. The device is specified over a 0C to 70C commercial operating temperature range.
The architecture employs sigma-delta modulation techniques to achieve 10-bit resolution at high conversion rates while maintaining excellent linearity. The integrated reference regulator stabilizes the ADC's internal reference voltage, reducing drift across temperature and supply variations. TTL/CMOS-compatible digital outputs simplify direct connection to standard logic families without level shifters.
Typical applications include professional video digitizers, broadcast equipment, medical imaging front-ends, industrial machine vision, and high-speed instrumentation. The wide bandwidth and low power consumption make it well-suited for portable test equipment and embedded vision modules.
When designing with this part, ensure the analog input bandwidth is limited to less than half the sampling rate (Nyquist criterion) to prevent aliasing, and provide adequate bypass capacitance on the analog supply pins. The integrated reference regulator eliminates the need for an external reference IC but may require a small filter capacitor.
This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes that go beyond the manufacturer datasheet to support faster component evaluation.
드롭인 대체품: TDA8763M/3/C4 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: TDA8763M/3/C4 (동일 폼 팩터 및 풋프린트) — 차이점: Package, Sampling Rate, Resolution, Architecture, Number of Channels.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
TDA8763AM/3/C4
✅ 드롭인✓ 재고 있음
$6.5 / 개
데이터시트 보기 →TDA8763M/3/C4,118
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TDA8763M/3/C4,112
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX197CWI
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD9220AR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX198BCAI
✅ 드롭인✓ 재고 있음
$16.95 / 개
데이터시트 보기 →TDA8763M/3/C4 최대 정격 & 전기적 특성
| 분해능 | 10 bit |
| Number of Inputs | 1 |
| 샘플링 속도 | 30 MSPS (50 MHz max) |
| Architecture | Sigma-Delta |
| Input Type | Single-ended analog |
| Data Interface | Parallel TTL/CMOS-compatible |
| 패키지 | 28-SSOP (5.30 mm width) |
| 실장 유형 | Surface Mount |
| 동작 온도 | 0C to +70C |
| Reference Type | Internal with integrated regulator |
| Supply Type | Single analog + digital |
| Digital Output Logic | TTL/CMOS compatible |
| Clock Input | TTL/CMOS or low-level sine wave |
TDA8763M/3/C4 핀 구성
| 핀 1 | AIN — Analog input |
| 핀 2 | REF_IN — Reference voltage input |
| 핀 3 | REF_OUT — Reference voltage output (internal regulator) |
| 핀 4 | AGND — Analog ground |
| 핀 5 | AVDD — Analog supply voltage |
| 핀 6 | AGND — Analog ground |
| 핀 7 | AVDD — Analog supply voltage |
| 핀 8 | CLAMP — Input clamp signal |
| 핀 9 | CLK — Clock input |
| 핀 10 | DGND — Digital ground |
| 핀 11 | DVDD — Digital supply voltage |
| 핀 12 | OE — Output enable (active low) |
| 핀 13 | D9 — Digital output bit 9 (MSB) |
| 핀 14 | D8 — Digital output bit 8 |
| 핀 15 | D7 — Digital output bit 7 |
| 핀 16 | D6 — Digital output bit 6 |
| 핀 17 | D5 — Digital output bit 5 |
| 핀 18 | D4 — Digital output bit 4 |
| 핀 19 | D3 — Digital output bit 3 |
| 핀 20 | D2 — Digital output bit 2 |
| 핀 21 | D1 — Digital output bit 1 |
| 핀 22 | D0 — Digital output bit 0 (LSB) |
| 핀 23 | DGND — Digital ground |
| 핀 24 | DVDD — Digital supply voltage |
| 핀 25 | STBY — Standby mode control (active low) |
| 핀 26 | NC — Not connected (per datasheet) |
| 핀 27 | AGND — Analog ground |
| 핀 28 | AVDD — Analog supply voltage |
일반적인 애플리케이션
TDA8763M/3/C4 적합 용도: 6 애플리케이션s: Professional Video Digitizer, Medical Imaging Front-End, Industrial Machine Vision, Broadcast Equipment SDI Capture, High-Speed Data Acquisition, Legacy Set-Top Box Video Input.
Professional Video Digitizer
The TDA8763M/3/C4 fits professional video digitizers because its 30 MSPS sampling rate exceeds the Nyquist requirement for standard-definition video (typically 13.5 MSPS for ITU-R BT.601), with 10-bit resolution providing 1024 quantization levels for broadcast-grade dynamic range. Its integrated reference regulator eliminates the external reference IC traditionally required, reducing PCB area in studio equipment racks. The TTL/CMOS-compatible parallel digital output streams directly into FPGA video processing pipelines or video encoder ASICs without level translation. Designers typically place the analog input through an anti-aliasing low-pass filter at 15 MHz, then connect to the ADC's single-ended analog input. This part is preferred over modern alternatives when legacy video infrastructure demands form-fit-function compatibility with installed base equipment.
추천
Medical Imaging Front-End
The TDA8763M/3/C4 suits medical imaging front-ends because its 10-bit resolution and 30 MSPS rate digitize ultrasound or endoscopy analog signal chains with adequate dynamic range for diagnostic-grade imaging. The integrated reference regulator improves thermal stability, which is critical for medical equipment where gain drift over 30-minute procedures can degrade image quality. The 28-SSOP package's 5.30 mm width allows dense PCB layouts inside portable ultrasound carts and endoscopy processors. According to the datasheet, TTL/CMOS digital outputs interface directly with image-processing DSPs without additional buffering. Designers should add an input protection clamp for ESD-sensitive medical environments and provide a shielded analog ground island to preserve SNR at the full 30 MSPS rate.
추천
Industrial Machine Vision
The TDA8763M/3/C4 supports industrial machine vision systems where analog video from line-scan or area-scan cameras must be digitized at production-line rates. Its 30 MSPS sample rate captures standard 640x480 pixel images at 60 fps with comfortable margin, while 10-bit resolution delivers 1024 grayscale levels sufficient for inspection of contrast features, dimensional measurement, and barcode reading. The commercial 0C to 70C operating range covers most factory-floor environments when housed in a sealed enclosure. The integrated reference regulator reduces BOM cost versus discrete-reference designs, important for cost-sensitive high-volume inspection equipment. Place a 10 uF decoupling capacitor near each supply pin to suppress digital switching noise coupling into the analog input.
추천
Broadcast Equipment SDI Capture
The TDA8763M/3/C4 is well-matched to broadcast SD-SDI capture cards because its 30 MSPS exceeds the 27 MSPS required for serial digital interface at standard definition. Its 10-bit resolution aligns with the 10-bit component video standard used in ITU-R BT.656 broadcast interfaces. The integrated reference regulator ensures stable digitization across long broadcast runs where temperature swings are common in equipment racks. Designers typically pair this ADC with a downstream FPGA implementing SDI decoding and frame buffering. The 28-SSOP footprint fits legacy SDI card designs requiring drop-in replacement of obsolete ADCs. For HD-SDI applications requiring 148.5 MSPS, consider a higher-speed upgrade ADC from a different family.
추천
High-Speed Data Acquisition
The TDA8763M/3/C4 handles high-speed data acquisition in test and measurement instrumentation where transient analog signals must be captured at multi-MHz rates. Its 30 MSPS capability covers vibration analysis, RF down-conversion IF sampling, and transient recorder applications where 10-bit resolution is acceptable. The integrated reference regulator reduces calibration drift versus external reference designs. The 28-SSOP package is pin-compatible with several Maxim and Analog Devices 12-bit alternatives, offering an upgrade path to higher resolution when needed. Designers should implement proper PCB layout with separate analog and digital ground planes, and use a low-jitter clock source to preserve ADC SNR at full sampling rate.
추천
Legacy Set-Top Box Video Input
The TDA8763M/3/C4 supports legacy set-top box video input stages where composite or component analog video from external sources must be digitized for MPEG encoding or display processing. Its 30 MSPS rate captures standard-definition video with margin, and the TTL/CMOS-compatible parallel output feeds directly into legacy video processors like the STi5500 series. The integrated reference regulator simplifies the analog front-end, critical for cost-sensitive consumer electronics where BOM reduction drives design wins. The 28-SSOP package footprint has been stable across NXP's video ADC generations, enabling PCB reuse. Designers should add input clamping diodes to protect the analog input from ESD during consumer handling.
추천
추천 제품 요약
엔지니어링 참조 데이터: TDA8763M/3/C4 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | TDA8763AM/3/C4 | TDA8763M/3/C4,118 | MAX197CWI | AD9220AR |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Analog Devices | Analog Devices |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Resolution | 10 bit | 10 bit | 10 bit | 12 bit (+20%) | 12 bit (+20%) |
| Sampling Rate | 30 MSPS | 30 MSPS | 30 MSPS | 100 kSPS (-99.7%) | 10 MSPS (-66.7%) |
| Number of Inputs | 1 | 1 | 1 | 8 | 1 |
| Architecture | Sigma-Delta | Sigma-Delta | Sigma-Delta | SAR | Pipelined |
| Internal Reference Regulator | Yes | Yes | Yes | Yes (internal 4.096V) | No (external required) |
| Operating Temperature | 0C to +70C | 0C to +70C | 0C to +70C | 0C to +70C | -40C to +85C |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Active (Maxim/ADI) | Active (last time buy in some channels) |
주요 차별점
- Integrated reference regulator eliminates external reference IC (vs AD9220AR)
- Higher sampling rate than SAR alternatives (vs MAX197CWI)
- Sigma-delta architecture provides inherent oversampling benefits (vs AD9220AR (pipelined))
- Drop-in pin compatibility within TDA8763 family (vs TDA8763AM/3/C4)
설계 노트
The TDA8763M/3/C4 requires separate analog (AVDD) and digital (DVDD) supply pins per the datasheet pinout. Use a ferrite bead or pi-filter between the AVDD and DVDD rails to prevent digital switching noise from coupling into the analog supply, which would degrade SNR at the 30 MSPS sample rate. Place 100 nF decoupling capacitors within 5 mm of each supply pin and a 10 uF bulk capacitor near the package. Estimated: at 5V AVDD and typical quiescent current, total power dissipation is approximately 200-300 mW.
Layout the TDA8763M/3/C4 with a star-ground topology: route analog ground (AGND) and digital ground (DGND) separately back to a single-point ground near the power supply input. Keep the analog input trace short and surrounded by ground pours to minimize noise pickup. The clock signal trace should be length-matched and routed away from the analog input to avoid digital coupling. The integrated reference regulator eliminates the need for an external reference IC but requires a clean analog supply; do not share the AVDD pin's decoupling capacitor with digital circuits.
Drive the TDA8763M/3/C4 clock input with a low-jitter clock source: jitter above 50 ps rms will significantly degrade SNR at 30 MSPS by smearing the sampling instant. Use a dedicated clock buffer or crystal oscillator with sub-10 ps jitter rather than distributing a shared system clock. The clock input accepts TTL/CMOS levels or low-level sine wave - if using a sine source, ensure the peak-to-peak amplitude meets the datasheet's minimum threshold. Route the clock trace as a 50 ohm controlled-impedance line with a series termination resistor at the driver.
Do not operate the TDA8763M/3/C4 with input frequencies above the Nyquist limit (15 MHz for 30 MSPS), as aliasing will produce false lower-frequency signals in the digital output. Insert an anti-aliasing low-pass filter with at least 40 dB attenuation at 15 MHz between the signal source and the analog input pin. Avoid driving the analog input beyond the input common-mode range, as specified in the datasheet electrical characteristics. The standby (STBY) pin must be tied high for normal operation; leaving it floating may cause unpredictable behavior including reduced SNR or output code errors.
The TDA8763M/3/C4 in 28-SSOP package has moderate power dissipation (estimated 200-300 mW at 5V supply) and does not require a dedicated heatsink in typical video applications. However, in enclosed spaces without airflow or at elevated ambient temperatures above 60C, the junction temperature may approach the 150C maximum rating. Ensure adequate PCB copper pour connected to the AGND pins acts as a thermal spreader. The 28-SSOP package thermal resistance is typically 80-100 C/W junction-to-ambient, allowing safe operation at room temperature with normal PCB copper.
규정 준수 정보
The TDA8763M/3/C4 is an obsolete NXP/Philips part from the late 1990s. Original Philips datasheet does not specify RoHS, REACH, or halogen-free status because these standards postdate the part's release. AEC-Q100 automotive qualification is not applicable (commercial grade only). Compliance values marked 'unknown' due to absence in verified data; consult NXP product documentation for current compliance certifications.
