Texas Instruments VSP5324TRGCRQ1

Overview

VSP5324TRGCRQ1 from Texas Instruments is a quad-channel, 12-bit, 80-MSPS automotive-grade analog-to-digital converter optimized for time-of-flight (ToF) depth sensing. It delivers 70 dBFS SNR at 5 MHz input and 85 dBc SFDR, operates from 1.8-V AVDD/LVDD supplies, and uses LVDS serial output in a 9-mm × 9-mm VQFN-64 package for compact 3D machine vision systems.

For engineers reviewing the VSP5324TRGCRQ1 datasheet, VSP5324TRGCRQ1 pinout, VSP5324TRGCRQ1 application, or VSP5324TRGCRQ1 equivalent, this page provides verified technical context, real-world timing behavior, confirmed LVDS interface configurations (one- or two-lane), automotive AEC-Q100 Grade 2 qualification (-40°C to +105°C), and validated alternative ADCs for ToF sensor signal chain design.

Technical Context

The VSP5324TRGCRQ1 integrates four synchronous ADC channels with programmable gain, internal/external reference selection, and dual LVDS output modes-supporting either 12× serialization (one-lane, up to 50 MSPS) or 6× serialization (two-lane, up to 80 MSPS). Its differential analog inputs accept 2-V_PP signals with 550-MHz bandwidth and feature 95-dB far-channel crosstalk suppression.

Timing-critical functions include frame clock (ADCLKP/ADCLKM) and bit clock (LCLKP/LCLKM) outputs synchronized to sampling, plus sub-ns aperture delay matching (±175 ps) across channels. Power-down control (PD pin) enables <40-mW global standby, and register-based configuration via SPI supports dynamic mode switching without external logic.

Key Specifications

Pinout & Package

Package: VQFN-64 (9.00 mm × 9.00 mm) with exposed thermal pad - Optimized for low-inductance grounding and thermal dissipation in space-constrained automotive PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-channel, 12-bit, automotive ADC applications.

Compared with VSP5324TRGCRQ1, ADS52J90IRGCTQ1 offers faster interface protocol support but sacrifices 2 bits of resolution and adds system complexity; ADC3664IRSBT delivers superior ENOB but cannot replace quad-channel synchronized sampling in production ToF systems.

Availability

VSP5324TRGCRQ1 is available at Aetrix Electronics and suitable for automotive in-cabin sensing, industrial 3D machine vision, and smart surveillance systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant traceability.

Supply support for VSP5324TRGCRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and automotive ICs, with decades of expertise in high-performance data converters and safety-critical system solutions.

The VSP5324TRGCRQ1 belongs to TI's automotive-qualified high-speed ADC portfolio, designed specifically for time-of-flight depth sensing in ADAS, driver monitoring, and gesture-controlled human-machine interfaces.

FAQ

What is the maximum sampling rate supported by the VSP5324TRGCRQ1 in two-lane LVDS mode?

The VSP5324TRGCRQ1 supports up to 80 MSPS in two-lane LVDS mode, delivering 12-bit data across eight differential LVDS pairs (four channels × two lanes). At this rate, total power consumption is 329 mW, and ADC latency is fixed at 15 clock cycles. This configuration is validated per the SLES275A datasheet revision December 2017.

Does the VSP5324TRGCRQ1 require external reference components when using internal reference mode?

No, the VSP5324TRGCRQ1 does not require external reference components in internal reference mode. When INT/EXT = high, REFT outputs 1.45 V and REFB outputs 0.45 V - both pins are driven and need no decoupling capacitors. VCM outputs 0.95 V as the common-mode voltage, eliminating external bias networks for differential analog inputs.

How is channel-to-channel timing skew managed in the VSP5324TRGCRQ1?

The VSP5324TRGCRQ1 guarantees ≤±175 ps aperture delay matching between any two channels under identical operating conditions. This is achieved through matched front-end sampling circuits and shared clock distribution. The specification is tested across temperature (–40°C to +105°C) and process corners, making it suitable for phase-coherent ToF pixel grouping.

Can the VSP5324TRGCRQ1 operate with a single-ended input clock?

Yes, the VSP5324TRGCRQ1 supports single-ended CMOS clock input: apply a 3.3-V CMOS signal to CLKP and tie CLKM to AGND. The device accepts clock frequencies from 10 MSPS to 80 MSPS in two-lane mode, with duty cycle tolerance of 35%–65%. AC coupling is recommended for sine-wave or LVDS inputs, but not required for CMOS.

What LVDS termination is required for reliable data capture from the VSP5324TRGCRQ1?

A 100-Ω differential termination resistor must be placed at the receiver end (e.g., FPGA LVDS input) for each LVDS pair (OUTxA/OUTxB, ADCLKP/ADCLKM, LCLKP/LCLKM). The VSP5324TRGCRQ1 specifies VOD(H) = 245–420 mV and VOC = 1.05 V under this condition. No termination is needed on the transmitter side, and unused B-lane pins (e.g., OUT1B_P/M in one-lane mode) must be floated without termination.