Overview
The TS3USB221A device, produced by Texas Instruments, is a high-bandwidth switch specifically designed for the switching of high-speed USB 2.0 signals in handset and consumer applications. This device is ideal for use in cell phones, digital cameras, and notebooks with hubs or controllers that have limited USB I/Os. It features a wide bandwidth of 900MHz, allowing signals to pass with minimal edge and phase distortion. The TS3USB221A is a bidirectional switch that multiplexes differential outputs from a USB host device to one of two corresponding outputs, offering little or no attenuation of the high-speed signals at the outputs. It also includes a low power mode that reduces power consumption to 1µA, making it suitable for portable applications with limited power budgets.
Key Specifications
| Parameter | Value |
|---|---|
| VCC Operation | 2.5V to 3.3V |
| VI/O Acceptance | Up to 5.5V |
| Control-Pin Inputs | 1.8V compatible |
| Low-Power Mode Current | 1µA (when OE is disabled) |
| RON (On-State Resistance) | 6Ω maximum |
| ΔRON (On-State Resistance Difference) | 0.2Ω typical |
| CIO(ON) (On-State Capacitance) | 6pF typical |
| Power Consumption | 30µA maximum |
| Bandwidth | 900MHz typical |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | µQFN (2mm × 1.5mm) |
| ESD Protection | 7000V human-body model, 1000V charged-device model, 12kV human-body model (I/O to GND) |
Key Features
- High bandwidth of 900MHz for minimal signal distortion
- Bidirectional switching with little or no attenuation of high-speed signals
- Low power mode with 1µA current when OE is disabled
- Low on-state resistance (RON = 6Ω maximum) and low on-state capacitance (CIO(ON) = 6pF typical)
- ESD protection cells on all pins, tested per JEDEC JS-001 and JS-002 standards
- Latch-up performance exceeds 100mA per JESD 78, Class II
- Compatible with high-speed USB 2.0 (480Mbps) standards
- Low bit-to-bit skew and high channel-to-channel noise isolation
Applications
- Cell phones
- Digital cameras
- Notebooks with hubs or controllers having limited USB I/Os
- USB I/O expansion in various consumer devices
- Routing signals for USB 1.0, 1.1, and 2.0
Q & A
- What is the primary function of the TS3USB221A device?
The TS3USB221A is a high-bandwidth switch designed for switching high-speed USB 2.0 signals in handset and consumer applications. - What is the operating voltage range for the TS3USB221A?
The device operates at VCC voltages between 2.5V and 3.3V. - How much current does the TS3USB221A consume in low power mode?
In low power mode, when OE is disabled, the device consumes 1µA. - What is the bandwidth of the TS3USB221A?
The bandwidth is 900MHz typical. - What type of ESD protection does the TS3USB221A offer?
The device integrates ESD protection cells on all pins, with protection levels of 7000V human-body model, 1000V charged-device model, and 12kV human-body model (I/O to GND). - What is the package type and size of the TS3USB221A?
The device is available in a tiny µQFN package (2mm × 1.5mm). - What are the typical applications of the TS3USB221A?
Typical applications include cell phones, digital cameras, and notebooks with limited USB I/Os. - Is the TS3USB221A compatible with high-speed USB 2.0 standards?
Yes, it is compatible with high-speed USB 2.0 (480Mbps) standards. - What is the on-state resistance (RON) of the TS3USB221A?
The on-state resistance (RON) is 6Ω maximum. - What is the operating temperature range of the TS3USB221A?
The operating temperature range is from -40°C to 85°C.
