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Product Detailed Parameters
- Description：IC SCREEN CNTRL 12BIT 120BGA
- Series：-
- Mfr：Texas Instruments
- Package：Tube,Tube
- Touchscreen：4 Wire Resistive
- Resolution (Bits)：12 b
- Interface：SPI
- Voltage Reference：External, Internal
- Voltage - Supply：2.7V ~ 3.6V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：120-VFBGA
- Supplier Device Package：120-BGA Microstar Junior (6x6)
- Current - Supply：-
- Grade：-
- Qualification：-
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Overview
The TSC2301IZQZ is a programmable touch screen controller with a stereo audio codec, manufactured by Texas Instruments. It integrates a 12-bit SAR ADC for resistive touch screens and a 20-bit delta-sigma audio codec. The device supports SPI and I2S interfaces, operating on a single 2.7-V to 3.6-V supply. Key features include programmable sampling rates up to 125 kHz for touch and 48 kHz for audio, internal battery monitoring up to 6 V, and an on-chip temperature sensor. It is housed in a 120-ball MicroStar Junior BGA package.
Feature Summary
- Integrated 12-bit SAR ADC with programmable resolution (8/10/12 bits) and sampling rates up to 125 kHz for resistive touch screen control.
- High-performance 20-bit stereo audio codec with dynamic range of 98 dB, supporting I2S interface and headphone amplifiers.
- Includes battery voltage monitors (0-6 V), on-chip temperature sensor with 0.3°C resolution, and 4x4 keypad interface.
- Operates on a single 2.7-V to 3.6-V supply with full power-down control and internal oscillator.
Applications
- Personal Digital Assistants (PDAs)
- Cellular Phones
- MP3 Players
- Internet Appliances
- Smartphones
Procurement Notes
Verify the specific ordering suffix 'IZQZ' corresponds to the 120-ball MicroStar Junior BGA package and tray transport media as listed in the official TI datasheet. Confirm that the industrial temperature range (-40°C to +85°C) meets system requirements. Ensure compatibility with the host SPI and I2S interface timing specifications before procurement.
Selection Notes
Select the TSC2301IZQZ when a combined touch screen controller and high-fidelity audio codec solution is required in a compact form factor. The BGA package is suitable for space-constrained designs. Consider the 12-bit touch resolution and 20-bit audio performance against system accuracy needs. Verify that the 2.7-V to 3.6-V supply range aligns with the target battery or power architecture.
Part Context
The TSC2301 series includes variants such as TSC2301IPAG (TQFP-64) and TSC2301IGQZ (VFBGA-120). The TSC2301IZQZ specifically denotes the version packaged in a 120-ball MicroStar Junior BGA. All variants share the same core functionality but differ in physical footprint and thermal characteristics.
Replacement Considerations
Direct pin-to-pin replacements are not available due to the unique BGA footprint. Designers may consider other TSC series devices like the TSC2101 if package changes are acceptable, but functional verification of the audio codec and touch controller integration is required.
FAQ
What is the maximum battery voltage the TSC2301 can monitor?
The TSC2301 features two battery measurement inputs capable of handling battery voltages up to 6 V.
Does the TSC2301 support direct connection to a microphone?
Yes, it includes a microphone input with a built-in pre-amplifier and a dedicated microphone bias circuit output.
What is the resolution of the on-chip temperature sensor?
The on-chip temperature sensor provides a resolution of 0.3°C.
