| Diff gain (%) | 0.07 |
| Output current (Typ) (mA) | 70 |
| Vs (Min) (V) | 2.6 |
| Vs (Max) (V) | 5.5 |
| Diff phase (deg) | 0.12 |
| Operating temperature range (C) | -40 to 85 |
| Rating | Catalog |
- 3 SDTV Video Amplifiers for CVBS, S-Video, Y'P'BP'R 480i/576i, or G'B'R' Video Systems
- I2C? Control of All Functions on Each Channel
- Integrated Low-Pass Filters
- 5th Order, 8-MHz Butterworth
- 0.5-dB Attenuation at 5.5 MHz
- 48-dB Attenuation at 27 MHz
- 5th Order, 8-MHz Butterworth
- Selectable Input Bias Modes
- AC-Coupled with Sync-Tip Clamp
- AC-Coupled with Bias
- DC-Coupled with 135-mV Input Shift
- DC-Coupled
- 2:1 Input MUX Allows Multiple Input Sources
- Built-in 6-dB Gain (2 V/V)
- SAG Correction Capable
- 2.7-V to 5-V Single Supply Operation
- Individual Disable (<1 μA) and Mute Control
- Rail-to-Rail Output:
- Output Swings within 100 mV from the Rails Which Allows AC or DC Output Coupling
- Able to Drive up to 2 Video Lines - 75
- Low 16.6-mA (3.3 V) Total Quiescent Current
- Low Differential Gain/Phase of 0.07% / 0.12°
- APPLICATIONS
- Set Top Box Output Video Buffering
- PVR/DVDR Output Buffering
- USB/Portable Low Power Video Buffering
I2C is a trademark of Philips Electronics.
Fabricated using the new complimentary silicon-germanium (SiGe) BiCom-III process, the THS7313 is a low-power, single-supply 2.7-V to 5-V, 3-channel integrated video buffer. It incorporates a 5th order Butterworth filter which is useful as a digital-to-analog converter (DAC) reconstruction filter or an analog-to-digital converter (ADC) anti-aliasing filter. The 8-MHz filter is a perfect choice for SDTV video which includes composite (CVBS), S-Video, Y'U'V', G'B'R', and Y'P'BP'R 480i/576i.
Each channel of the THS7313 is individually I2C configurable for all functions which makes it flexible for any application. Its rail-to-rail output stage allows for both ac and dc coupling applications. The 6-dB gain along with the built-in SAG correction allows for maximum flexibility as an output video buffer.
The 16.6 mA total quiescent current at 3.3 V (55 mW) makes it an excellent choice for USB powered or portable video applications. While fully disabled, the THS7313 consumes less than 1 μA.
The THS7313 is available in a small lead-free and RoHS compliant TSSOP-20 package.
As part of the THS7313 flexibility, the 2:1 MUX input can be selected for ac or dc coupled inputs. The ac coupled modes include a sync-tip clamp option for CVBS or Y' signals, or a fixed bias for the C/P'B/P'R channels. The dc input options include a dc input or a dc + 135-mV input offset shift to allow for a full sync dynamic range at the output with 0-V input.
