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Texas Instruments TSC2100IDAR
- Part No.:
- TSC2100IDAR
- Manufacturer:
- Texas Instruments
- Category:
- Touch Screen Controllers
- Package:
- 32-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
TSC2100IDAR.pdf
- Description:
- IC SCREEN CNTRL 12BIT 32TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,194
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Product details
Overview
TSC2100IDAR from Texas Instruments is a programmable 4-wire resistive touch screen controller with integrated stereo audio codec, 12-bit SAR ADC, microphone preamp with hardware AGC, and dual-output amplifier supporting headphone (30 mW @ 16 Ω), line-level, and speaker (325 mW @ 8 Ω) modes. It operates at 48 ksps with 97-dB DAC SNR and supports SPI/I²S interfaces for portable PDA, smart phone, and MP3 player applications.
For engineers reviewing the TSC2100IDAR datasheet, TSC2100IDAR pinout, TSC2100IDAR application, or TSC2100IDAR equivalent, this page delivers verified technical context on its integrated touch/audio co-processing architecture, autonomous timing control, battery/temperature monitoring, and configurable power-down states - all critical for low-power handheld system design.
Technical Context
The TSC2100IDAR integrates a fully autonomous touch-screen processor with programmable 8/10/12-bit SAR ADC, ratiometric conversion for X/Y/Z coordinate acquisition, and panel voltage stabilization delay control. Its on-chip state machine handles touch detection, coordinate scanning, and pressure calculation without host intervention.
Audio subsystem includes a 24-bit sigma-delta stereo DAC (97-dB SNR), mono sigma-delta ADC (80–92 dBA SNR), programmable digital audio effects (bass/treble/EQ/de-emphasis), and flexible clocking via integrated PLL supporting I²S/DSP/LJF/RJF formats in master or slave mode.
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 precision coordinate mapping. |
| AUDIO DAC SNR | 97 dBA at 48 ksps; ensures high-fidelity playback in battery-powered portable audio without external filtering. |
| Speaker Output Power | 325 mW into 8 Ω; eliminates need for external Class-D driver in compact MP3 players or smart handsets. |
| Microphone Input | Single-ended or differential with hardware AGC; supports direct connection of electret mics without external bias or gain stages. |
| Power Consumption | 11 mW stereo playback at 48 ksps (3.3 V AVDD); enables >10-hour battery life in always-on UI audio feedback systems. |
| Battery Monitoring | Two inputs (VBAT1/VBAT2) accepting up to 6 V; allows simultaneous main/backup battery tracking with ±1 µA leakage. |
| Operating Temperature | −40°C to +85°C; qualified for automotive infotainment displays and industrial handheld terminals. |
Pinout & Package
32-pin TSSOP (Package Designator: DA) with 0.65-mm pitch; thermally enhanced for sustained 325-mW speaker drive at ambient ≤70°C per TI SLAS378 specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DIN / DOUT | I²S audio data I/O | Full-duplex serial audio interface compatible with DSP, I²S, and left/right-justified protocols. |
| SCLK / MOSI / MISO / SS | SPI host interface | Configurable 16-bit register access for touch calibration, audio routing, and power-state control. |
| X+, X−, Y+, Y− | 4-wire resistive touch panel drivers/sense | Integrated low-RON switches enable ratiometric measurement and Z-pressure calculation without external components. |
| HPL / HPR / DRVDD / DRVSS | Stereo headphone/speaker output stage | Capless headphone output and bridge-tied load (BTL) speaker driver share same pins; software-selectable mode. |
| MICIN / MICBIAS | Microphone input with bias | 2.0 V or 2.5 V programmable bias supports wide range of electret capsules; AGC prevents clipping during loud transients. |
| PINTDAV | Pen interrupt/data-ready | Open-drain signal asserts on touch detection or conversion completion; reduces host polling overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous touch operation | On-chip processor executes full X/Y/Z scan sequence, averaging, and pressure calculation without CPU involvement. |
| Programmable audio effects | Digital bass/treble/EQ/de-emphasis processing applied in real time before DAC output - no host DSP required. |
| Ratiometric reference architecture | Eliminates touch position error from supply drift by using panel voltage as reference; no external precision reference needed. |
| Multi-supply domain isolation | Separate AVDD/DRVDD/DVDD/IOVDD rails minimize crosstalk between analog audio, speaker drive, digital core, and I/O logic. |
| Hardware power-down control | PWD/ADWS pin enables <2 µA deep-sleep state; retains register settings and allows instant wake-up on pen touch. |
Applications
| Personal Digital Assistant (PDA) | Smart Cellular Phone |
|---|---|
Use Scenario: Resistive touchscreen UI with voice memo recording and speaker playback in palm-sized form factor. IC Role / Device Role / Timing Role: Single-chip touch + audio co-processor handling coordinate acquisition, mic AGC, DAC interpolation, and BTL speaker drive. Use Value: Reduces BOM count by replacing discrete touch controller, audio codec, and speaker amp; 11-mW playback extends battery runtime. |
Use Scenario: Compact handset requiring simultaneous touch response, hands-free speaker output, and noise-resistant microphone capture. IC Role / Device Role / Timing Role: Touch controller with pen-interrupt signaling and audio subsystem managing sidetone, de-emphasis, and 325-mW speaker burst. Use Value: Integrated hardware AGC and ratiometric touch eliminate external op-amps and voltage references; SPI interface simplifies host firmware integration. |
| MP3 Player | Industrial Handheld Terminal |
Use Scenario: Portable media player with tactile screen navigation, stereo headphone output, and battery-level display. IC Role / Device Role / Timing Role: Dual-role device: touch interface manager and high-SNR audio playback engine with capless headphone driver. Use Value: 97-dB DAC SNR meets consumer audio fidelity requirements; VBAT1/VBAT2 inputs enable accurate remaining-charge estimation. |
Use Scenario: Rugged field terminal operating in −40°C to +85°C environments with glove-compatible resistive touchscreen and audible alerts. IC Role / Device Role / Timing Role: Industrial-grade touch/audio SoC providing cold-temperature stable coordinate acquisition and robust speaker output under ESD stress. Use Value: Qualified over full industrial temp range; on-chip temperature sensor (0.3°C resolution) enables thermal derating of speaker output to prevent thermal shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar touch-screen controller with audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSC2101IDAR | Same pinout and register map; adds dedicated AUX ADC channel and improved THD (−91 dB vs −88 dB) in headphone mode. | Preferred where auxiliary sensor monitoring (e.g., light/pressure) is required alongside touch/audio. | Select TSC2101IDAR if AUX input functionality is needed; otherwise TSC2100IDAR offers identical core capability at lower cost. |
| AK4183VN | Dedicated audio codec only (no touch controller); 102-dB DAC SNR but requires external touch IC and GPIO-based interrupt coordination. | Suitable when touch and audio functions are developed separately or require independent upgrade paths. | Choose AK4183VN only when architectural separation of touch and audio subsystems is mandated; adds PCB area and firmware complexity. |
Compared with TSC2100IDAR, TSC2101IDAR provides identical touch/audio integration with added AUX channel utility, while AK4183VN forces system-level redesign to accommodate external touch management - making TSC2100IDAR optimal for cost-sensitive, space-constrained portable designs requiring single-chip convergence.
Availability
TSC2100IDAR 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 TSC2100IDAR 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 for industrial, automotive, and consumer markets.
The TSC2100 product line was designed to consolidate touch-screen control and high-fidelity audio into a single low-power IC for portable computing and communication devices - reducing system complexity and bill-of-materials cost.
FAQ
What is the primary function of the TSC2100IDAR in a portable system?
The TSC2100IDAR serves as an integrated touch-screen controller and stereo audio codec. It acquires X/Y/Z coordinates from 4-wire resistive panels, processes microphone input with hardware AGC, and drives headphones or speakers via its dual-output amplifier. In the TSC2100IDAR, all these functions operate on shared resources but retain independent configuration - enabling coordinated low-power UI and audio subsystems without external glue logic.
Does the TSC2100IDAR support both SPI and I²S interfaces simultaneously?
Yes, the TSC2100IDAR supports concurrent SPI and I²S operation: SPI manages register configuration and touch result reads, while I²S handles real-time audio data transfer. The DIN/DOUT/BCLK/LRCK pins operate independently from SCLK/MOSI/MISO/SS, allowing simultaneous touch polling and uninterrupted audio streaming - essential for responsive UI feedback during playback in devices like smart phones and PDAs.
What is the maximum speaker output power achievable with the TSC2100IDAR?
The TSC2100IDAR delivers up to 325 mW into an 8-Ω load when configured in bridge-tied load (BTL) speaker mode with DRVDD = 3.3 V. This specification is validated per TI SLAS378 and applies to the TSC2100IDAR in TSSOP-32 package at ambient temperatures ≤70°C. Exceeding this temperature threshold requires thermal derating or use of the QFN variant (TSC2100IRHBR) with enhanced PCB heat sinking.
How does the TSC2100IDAR handle battery voltage monitoring?
The TSC2100IDAR features two dedicated battery monitor inputs (VBAT1 and VBAT2), each capable of measuring voltages from 0.5 V to 6.0 V with ±1 µA leakage current. These inputs connect directly to battery terminals and use the internal 2.5-V reference for conversion. In the TSC2100IDAR, battery readings are acquired via the same 12-bit SAR ADC used for touch and temperature - enabling synchronized multi-parameter system health monitoring without additional ADC hardware.
Is the TSC2100IDAR pin-compatible with other members of the TSC21xx family?
The TSC2100IDAR is pin-compatible with the TSC2101IDAR in the 32-pin TSSOP package (DA), sharing identical pin assignments, electrical characteristics, and register maps. However, it is not pin-compatible with TSC2102 or TSC2111 variants due to differences in auxiliary input count, power domains, and interrupt signaling. For drop-in replacement within the TSC2100/TSC2101 family, the TSC2100IDAR and TSC2101IDAR may be interchanged without layout changes.
TSC2100IDAR 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
TSC2100IDAR FAQ
1.How can I place an order for TSC2100IDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC2100IDAR 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 TSC2100IDAR reliable?
The price and inventory of TSC2100IDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC2100IDAR is usually 5 days.
3.What payment methods are accepted for TSC2100IDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC2100IDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC2100IDAR?
TSC2100IDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC2100IDAR 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 TSC2100IDAR?
For technical support, including TSC2100IDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC2100IDAR requirements.
6.How does Aetrix verify that TSC2100IDAR is sourced from the original manufacturer or authorized distributors?
All TSC2100IDAR 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 TSC2100IDAR meets industry standards.
7.What is the process for return or replacement of TSC2100IDAR?
All TSC2100IDAR units undergo pre-shipment inspection (PSI). If there is an issue with TSC2100IDAR, 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 TSC2100IDAR part is unused and in its original packaging.
Return procedure for TSC2100IDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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