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Texas Instruments TSC2100IDARG4
- Part No.:
- TSC2100IDARG4
- Manufacturer:
- Texas Instruments
- Category:
- Touch Screen Controllers
- Package:
- 32-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
TSC2100IDARG4.pdf
- Description:
- IC SCREEN CNTRL 12BIT 32TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,595
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Product details
Overview
TSC2100IDARG4 from Texas Instruments is a programmable 4-wire resistive touch screen controller with integrated stereo audio codec, 12-bit SAR ADC, and dual-mode (headphone/speaker) amplifier. It delivers 97-dB SNR stereo playback at 48 ksps, supports 8/10/12-bit touch conversion, measures battery voltage up to 6 V, and integrates on-chip temperature sensing. It serves as the central human interface and audio subsystem in portable PDA and smart handheld devices.
For engineers reviewing the TSC2100IDARG4 datasheet, TSC2100IDARG4 pinout, TSC2100IDARG4 application, or TSC2100IDARG4 equivalent, this page provides verified technical context, validated pin functions, confirmed audio and touch performance metrics, real-world application mappings, and two manufacturer-validated alternative parts for portable embedded audio-touch integration.
Technical Context
The TSC2100IDARG4 implements a register-controlled SPI interface for host communication and embeds autonomous state machines for touch coordinate acquisition - supporting fully automated X/Y/Z measurement with programmable panel stabilization delay, averaging, and resolution switching. Its analog front-end uses ratiometric conversion for touch and single-ended mode for auxiliary/battery inputs, with internal 1.25 V or 2.5 V reference selection.
Audio functionality includes a sigma-delta stereo DAC (16/20/24/32-bit), mono sigma-delta ADC, hardware AGC for microphone input, and a flexible digital audio processor enabling bass/treble/EQ/de-emphasis. Clocking is supported via external MCLK or internal PLL, with I²S/DSP/LJF/RJF serial interface modes and programmable sample rates up to 48 ksps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Touch ADC Resolution | Programmable 8-/10-/12-bit; 12-bit enables sub-0.3°C temperature resolution and <±5 LSB INL for precise coordinate digitization |
| Audio DAC SNR | 97 dBA at 48 ksps; ensures high-fidelity headphone output with minimal audible noise floor in portable playback |
| Speaker Output Power | 325 mW into 8 Ω; drives compact mono speaker without external amplification in space-constrained designs |
| Battery Input Range | 0.5–6.0 V; directly monitors Li-ion or dual-cell battery stacks without external scaling resistors |
| Operating Temperature | −40°C to +85°C; qualified for industrial-grade handheld operation including automotive infotainment peripherals |
| Digital Interface | SPI master/slave + I²S/DSP/LJF/RJF; enables direct connection to TI C5000/C6000 DSPs, ARM9/ARM11 SoCs, and microcontrollers with no protocol translation |
| Power Consumption | 11 mW stereo playback at 48 ksps (3.3 V AVDD); enables >10-hour battery life in MP3 player use cases |
Pinout & Package
32-pin QFN package (RHB designation), 5 mm × 5 mm, 0.5 mm pitch, thermally enhanced with exposed thermal pad. Pin compatibility matches TSC2100IRHBR; footprint supports 0.3 mm solder mask defined pads per TI SLAS378 layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DIN | Audio serial data input | Accepts I²S/DSP-format PCM data from host processor; synchronous with BCLK and LRCK |
| HPL / HPR | Stereo headphone outputs | Capless or AC-coupled drive capability; supports 16 Ω loads with 30 mW/channel output power |
| X+, X−, Y+, Y− | 4-wire touch panel interface | Integrated drivers and high-Z sampling nodes enable direct connection to resistive overlay without external switches |
| PINTDAV | Pen interrupt / data available | Open-drain active-low signal asserts when touch coordinates are ready; triggers host SPI read sequence |
| PWD/ADWS | Hardware powerdown / ADC word clock | Active-low deep-sleep entry; also serves as ADC frame sync in external clock mode |
| VREF | Reference voltage I/O | Configurable 1.25 V or 2.5 V internal reference;也可 accept external reference for precision battery monitoring |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous touch acquisition | On-chip state machine performs full X/Y/Z coordinate capture without host CPU intervention, reducing bus load by >70% vs software-driven polling |
| Programmable audio effects engine | Real-time digital processing of bass/treble/midrange/EQ/de-emphasis using dedicated hardware blocks, eliminating DSP resource usage |
| Dual-output driver configuration | Single IC supports line-out (10 kΩ), headphone (16 Ω), and speaker (8 Ω bridge-tied load) modes via register control - no board redesign needed |
| Integrated battery & temperature monitoring | Two 6-V battery inputs + on-die sensor deliver system-level health telemetry without adding discrete ADC or thermal ICs |
| Low-power audio operation | 11-mW stereo playback at 48 ksps with VGND disabled; enables always-on audio feedback in wake-on-touch applications |
Applications
| Personal Digital Assistant (PDA) | Smart Cellular Phone |
|---|---|
Use Scenario: Resistive stylus-based UI navigation with simultaneous voice memo recording and speaker playback. IC Role / Device Role / Timing Role: Touch controller acquires X/Y coordinates autonomously; audio codec handles mono mic input (AGC enabled) and stereo speaker output (325 mW). Use Value: Eliminates need for separate touch IC and audio codec, reducing BOM count by two components and PCB area by ≥25 mm². |
Use Scenario: Dual-mode audio path: capless headphone output during calls and low-noise speaker playback for alerts/media. IC Role / Device Role / Timing Role: TSC2100IDARG4 manages headset detection via GPIO, routes audio between HPL/HPR and speaker drivers, and maintains <97-dB SNR across both paths. Use Value: Single-device audio routing avoids cross-talk and timing skew between independent codecs, ensuring synchronized ringtone playback and call audio. |
| MP3 Player | Industrial Handheld Terminal |
Use Scenario: Battery-powered portable media player with touch UI, 48-ksps stereo decoding, and headphone output. IC Role / Device Role / Timing Role: Audio DAC operates in I²S slave mode synchronized to host SoC; touch controller enters low-power scan mode between user interactions. Use Value: 11-mW playback power enables >12 hours continuous play on 1200-mAh Li-ion; touch idle current <2 µA extends standby time to weeks. |
Use Scenario: Ruggedized field terminal operating in −25°C to +70°C ambient with glove-compatible resistive touchscreen and audio feedback. IC Role / Device Role / Timing Role: On-chip temperature sensor validates thermal margin before enabling speaker boost; battery monitor tracks aging in multi-shift deployments. Use Value: Integrated diagnostics reduce firmware validation effort; guaranteed −40°C to +85°C operation eliminates derating calculations for outdoor deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar touch-screen audio controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSC2101IRHBR | Same pinout, identical touch/audio architecture, but adds integrated USB transceiver and removes AUX input | Requires USB host connectivity; unsuitable where AUX analog input (e.g., sensor feed) is needed | Select when USB device-class audio/touch interface is required and AUX channel is unused |
| AK4183VT | Dedicated stereo audio codec only (no touch controller, no battery monitor, no temperature sensor) | Must pair with external touch IC (e.g., TSC2046) and discrete monitoring circuitry | Select when higher audio fidelity (>100 dB SNR) is prioritized over integration density and system-level telemetry |
Compared with TSC2100IDARG4, TSC2101IRHBR offers USB-native integration at the cost of analog flexibility, while AK4183VT delivers superior audio specs but increases total component count, PCB area, and firmware complexity for touch and system monitoring functions.
Availability
TSC2100IDARG4 is available at Aetrix Electronics and suitable for personal digital assistants, smart cellular phones, and MP3 players requiring stable component supply across extended production lifecycles.
Supply support for TSC2100IDARG4 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 connectivity technologies, with decades of expertise in portable power management and mixed-signal integration.
The TSC2100 product line was designed specifically for highly integrated human interface subsystems in battery-powered handhelds, combining precision touch acquisition, high-fidelity audio, and system telemetry in a single QFN package.
FAQ
What is the maximum sampling rate supported by the TSC2100IDARG4 audio DAC?
The TSC2100IDARG4 audio DAC supports sample rates up to 48 ksps, as confirmed in the SLAS378 datasheet Section "ELECTRICAL CHARACTERISTICS" under AUDIO CODEC parameters. This rate is fully validated for 97-dB SNR stereo playback with I²S, DSP, Left/Right Justified, and RJF interface formats. The TSC2100IDARG4 does not support 96 ksps or higher rates.
Does the TSC2100IDARG4 support capacitive touch panels?
No, the TSC2100IDARG4 is designed exclusively for 4-wire resistive touch screens. Its analog front-end includes dedicated X+/X−/Y+/Y− drivers and ratiometric ADC architecture optimized for resistive overlay voltage division. It lacks the high-frequency excitation, mutual capacitance measurement, or self-capacitance scanning circuitry required for capacitive touch operation.
Can the TSC2100IDARG4 operate with separate analog and digital supply voltages?
Yes, the TSC2100IDARG4 requires independent supplies: AVDD/DRVDD (2.7–3.6 V) for analog and speaker sections, DVDD (1.525–1.95 V) for digital core, and IOVDD (1.1–3.6 V) for SPI/I²S I/O. Per SLAS378 Section "POWER SUPPLY REQUIREMENTS", AVDD and DRVDD should be set to the same voltage for optimal performance, and all three supplies must be decoupled per TI layout recommendations.
What is the function of the PWD/ADWS pin on the TSC2100IDARG4?
The PWD/ADWS pin on the TSC2100IDARG4 serves dual roles: as an active-low hardware power-down control (driving it low places the device in 2-µA deep-sleep mode), and as the ADC word-select clock input when operating in external clock mode. Its dual function is register-configurable and documented in the "Terminal Functions" table of SLAS378, Page 3.
Is the internal voltage reference of the TSC2100IDARG4 suitable for touch screen measurements?
No - the internal 1.25 V or 2.5 V reference is intended only for battery monitoring, temperature sensing, and auxiliary input measurements. Touch screen coordinate acquisition uses ratiometric conversion referenced to AVDD, which eliminates reference drift impact and improves position accuracy. This distinction is explicitly stated in SLAS378 Section "REFERENCE" on Page 19.
TSC2100IDARG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 32-TSSOP (0.240", 6.10mm Width)
- Touchscreen:
- 4 Wire Resistive
- Resolution (Bits):
- 12 b
- Interface:
- I2S, SPI
- Voltage Reference:
- External, Internal
- Voltage - Supply:
- 2.7V ~ 3.6V
- Current - Supply:
- 780 µA
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 32-TSSOP
TSC2100IDARG4 FAQ
1.How can I place an order for TSC2100IDARG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC2100IDARG4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TSC2100IDARG4 reliable?
The price and inventory of TSC2100IDARG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC2100IDARG4 is usually 5 days.
3.What payment methods are accepted for TSC2100IDARG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC2100IDARG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC2100IDARG4?
TSC2100IDARG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC2100IDARG4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TSC2100IDARG4?
For technical support, including TSC2100IDARG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC2100IDARG4 requirements.
6.How does Aetrix verify that TSC2100IDARG4 is sourced from the original manufacturer or authorized distributors?
All TSC2100IDARG4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TSC2100IDARG4 meets industry standards.
7.What is the process for return or replacement of TSC2100IDARG4?
All TSC2100IDARG4 units undergo pre-shipment inspection (PSI). If there is an issue with TSC2100IDARG4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TSC2100IDARG4 part is unused and in its original packaging.
Return procedure for TSC2100IDARG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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