SN761685PWRG4

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The SN761685PWRG4 is a component of linear video processing systems used in a variety of applications including broadcast video systems, digital video encoders and decoders, distribution systems and multi-camera security solutions. It is a discrete component version of the well-known UMC-7617 family of linear-video processing components. The component is used to extend the analog signal paths in existing systems, providing up to 50dB of additional gain used to overcome signal length problems. The component also provides an adjustable low-noise offset control and variable gain ranges to ensure optimal performance under various conditions.

The SN761685PWRG4 operates on a single supply voltage of +5V, and requires a negative DC supply of -5V for the signal inputs. The component has a +5V digital signal output and a +5V analog signal output. The component is designed for use in linear video systems with inputs up to 1V. The component can also be used in other applications where signal amplification and adjustable gain are required.

The SN761685PWRG4 is controlled through a six-bit control signal (CMOS) combined with two programmable registers (V1 and V2) that define the number of gain steps, gain ranges, noise offset, and center frequency response. Through the registers V1 and V2, the SN761685PWRG4 can be easily configured to match the gain settings and frequency response of any particular linear video system. The component also features a noise offset adjust (NOA) circuit, which allows fine-tuning of the signal balance.

The SN761685PWRG4 works in two main modes - differential mode (DM) and Common Mode (CM). In DM mode, the component adjusts the gain to maximize the signal-to-noise ratio (SNR) while reducing distortion. In CM mode, the component ensures that the amplified video signal maintains a certain minimum level even in the presence of strong interfering signals. It also adjusts the gain to maintain a constant gain regardless of the input signal level.

The gain adjustment is done through a variable gain amplifier that modulates the gain of the SN761685PWRG4 with the control signal. The adjustable gain range of the component is from 40dB to 90dB with a total gain variation of 10dB per step. The noise offset adjust (NOA) circuit of the component provides adjustable gains of up to 50dB of additional gain and adjustable low-noise offset control. This ensures optimal performance in a wide range of linear video systems.

The SN761685PWRG4 is suitable for use in linear video systems such as digital video encoders and decoders, distribution systems, multi-camera security systems and broadcast video systems. The component provides a wide range of gain variation and adjustable gain control, allowing it to easily adapt to any linear video system. The adjustable gain range and noise offset adjust feature make the SN761685PWRG4 an ideal choice for linear video systems where signal length, noise levels, and signal instability are major concerns.

The specific data is subject to PDF, and the above content is for reference