Overview
The TSH122ICT, produced by STMicroelectronics, is a highly specialized video buffer designed to optimize video signal processing. It utilizes a voltage feedback amplifier with an internal gain of 6 dB and features an output rail-to-rail configuration. The device includes an internal input DC-shift and SAG correction, making it suitable for various video applications. It operates from a single power supply ranging from 2.25 to 5 V and is available in a compact SC70 package, which is environmentally friendly and lead-free, complying with ECOPACK® standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 2.25 to 5 | V |
| Operating Temperature Range | -40 to +85 | °C |
| Internal Gain | 6 dB | dB |
| Power Consumption (Typ.) | 1.7 mA | mA |
| Power-Down Consumption (Typ.) | 4 nA | nA |
| Differential Gain | 0.5% | % |
| Differential Phase | 0.10° | ° |
| Group Delay | 10 ns | ns |
| Filter Bandwidth (-3dB) | 5.4 MHz | MHz |
| 27 MHz Rejection | 36 dB | dB |
| Package Type | SC70 (SOT323-6) |
Key Features
- Ultra Low Power Consumption: The TSH122ICT has a very low power consumption of 1.7 mA and an ultra-low power-down mode of 4 nA typical.
- Internal 6th Order Reconstruction Filter: This filter attenuates the parasitic frequency of 27 MHz from the video DAC, ensuring high video quality.
- Rail-to-Rail Output Buffer: Suitable for 75 Ω video lines, providing excellent video performance.
- SAG Correction: Allows the use of small, low-cost capacitors in AC-coupling configurations.
- Internal DC-Shift and Gain: Optimizes the video signal position with an internal gain of 6 dB and no clamping on the output rails.
- Power-Down Function: Enables switching to a sleep mode with ultra-low consumption.
- Compact and Environmentally Friendly Package: Available in a lead-free SC70 package, complying with ECOPACK® standards.
Applications
- Mobile Phones: Ideal for video signal processing in mobile devices.
- Digital Still Cameras: Enhances video quality in digital still cameras.
- Digital Video Cameras: Optimizes video signals in digital video cameras.
- Portable DVD Players: Used in portable DVD players for improved video performance.
Q & A
- What is the operating voltage range of the TSH122ICT?
The TSH122ICT operates from a single power supply ranging from 2.25 to 5 V.
- What is the typical power consumption of the TSH122ICT?
The typical power consumption is 1.7 mA.
- What is the power-down consumption of the TSH122ICT?
The power-down consumption is typically 4 nA.
- What is the internal gain of the TSH122ICT?
The internal gain is 6 dB.
- What type of filter does the TSH122ICT include?
The TSH122ICT includes an internal 6th order reconstruction filter.
- What is the differential gain of the TSH122ICT?
The differential gain is 0.5%.
- What is the group delay of the TSH122ICT?
The group delay is 10 ns.
- What is the package type of the TSH122ICT?
The package type is SC70 (SOT323-6).
- What are some common applications of the TSH122ICT?
Common applications include mobile phones, digital still cameras, digital video cameras, and portable DVD players.
- How does the SAG correction feature work in the TSH122ICT?
The SAG correction allows the use of small, low-cost capacitors in AC-coupling configurations, reducing power consumption by removing the DC component from the signal.
