THS7375 - 4-Channel SDTV Video Amplifier | Texas Instruments
Teilenummer: THS7375 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.52 | $1,52 |
| 10 | $1.35 | $13,50 |
| 100 | $1.08 | $108,00 |
| 500 | $0.92 | $460,00 |
| 1.000 | $0.78 | $780,00 |
THS7375 Übersicht
A video amplifier is an electronic amplifier that processes video signals, typically providing gain, buffering, and filtering to ensure signal integrity over transmission lines. In the signal chain, the THS7375 sits between a video DAC or encoder and the output connector, performing reconstruction filtering and line driving. It belongs to the category of integrated video buffers, which are essential in consumer electronics, set-top boxes, DVD players, and video surveillance systems. The THS7375's integrated filters eliminate the need for external passive components, simplifying design and reducing board space.
Key features include a 6th-order Butterworth filter with a cutoff frequency suitable for SDTV (standard-definition television) signals, a fixed gain of 5.6 V/V, and the ability to drive two lines per channel or 75-ohm loads. The device operates from a single 3 V to 5 V supply, making it compatible with common digital logic levels. The rail-to-rail output stage ensures maximum output swing, and the low power consumption makes it ideal for battery-powered or power-sensitive applications.
Technically, the THS7375 uses the BiCom3X process, which combines bipolar and CMOS transistors on a silicon-germanium substrate, offering high-speed performance with low power. The integrated filter is a 6th-order Butterworth type, providing a flat passband and sharp roll-off to remove out-of-band noise and aliasing artifacts. The device also features an internal gain of 5.6 V/V, which is optimized for driving video loads with proper termination.
Typical applications include video buffer and line driver for SDTV signals in set-top boxes, DVD players, video recorders, and surveillance systems. It is also suitable for driving video signals from DaVinci processors and other video encoders. The THS7375's ability to drive two lines per channel allows for flexible routing in complex video distribution systems.
When designing with the THS7375, ensure proper power supply decoupling with a 0.1 uF ceramic capacitor close to the VCC pin. The input should be AC-coupled if the source has a DC offset, and the output should be terminated with 75-ohm resistors to match the characteristic impedance of the cable. The filter bypass pin can be used to disable the internal filter if external filtering is preferred.
Drop-in-Alternativen für THS7375 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
THS7375IPWR
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
THS7374IPWR
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
NJM2267M
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
LMH6714
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
AD8073
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
THS7375 Grenzwerte & elektrische Eigenschaften
| Number of Channels | 4 |
| Supply Voltage Range | 3 V to 5 V |
| Gain | 5.6 V/V (15 dB) |
| Filter Type | 6th-Order Butterworth |
| Filter Bypass | Yes |
| Ausgangstyp | Rail-to-Rail |
| Load Drive Capability | 2 lines per channel or 75-ohm |
| Process Technology | Complementary SiGe BiCom3X |
| Gehäuse | TSSOP-14 |
| Montageart | Surface Mount |
| Lead-Free | Yes |
| RoHS Compliant | Yes |
| Green (Halogen-Free) | Yes |
THS7375 Pin-Konfiguration
| Pin 1 | VCC — Power supply (3 V to 5 V) |
| Pin 2 | IN1 — Video input channel 1 |
| Pin 3 | OUT1 — Video output channel 1 |
| Pin 4 | GND — Ground |
| Pin 5 | IN2 — Video input channel 2 |
| Pin 6 | OUT2 — Video output channel 2 |
| Pin 7 | GND — Ground |
| Pin 8 | IN3 — Video input channel 3 |
| Pin 9 | OUT3 — Video output channel 3 |
| Pin 10 | GND — Ground |
| Pin 11 | IN4 — Video input channel 4 |
| Pin 12 | OUT4 — Video output channel 4 |
| Pin 13 | FILTER_BYPASS — Filter bypass control |
| Pin 14 | VCC — Power supply (3 V to 5 V) |
Typische Anwendungen
THS7375 ist geeignet für 6 Anwendungs: Set-Top Box Video Output, DVD Player Video Driver, Video Surveillance System, Portable Video Device, Automotive Infotainment, Video Conferencing Equipment.
Set-Top Box Video Output
The THS7375 provides four channels of SDTV video buffering and filtering for set-top box outputs. Its 6th-order Butterworth filter removes out-of-band noise from the DAC, ensuring clean composite or component video signals. The rail-to-rail output can drive 75-ohm cables directly, simplifying the output stage. With a 3 V to 5 V supply, it integrates easily with the system's digital logic. The low power consumption is ideal for always-on consumer devices. According to the datasheet, the THS7375 is the perfect choice for video buffer applications, making it a reliable solution for set-top box video output.
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DVD Player Video Driver
In DVD players, the THS7375 drives composite and component video outputs with its four channels. The integrated 6th-order filter reconstructs the analog signal from the DAC, reducing aliasing and noise. The 5.6-V/V gain compensates for cable losses, ensuring a strong signal at the display. The device operates from 3 V to 5 V, matching the player's power supply. Its small TSSOP-14 package saves board space in compact designs. The ability to drive two lines per channel allows for multiple outputs, such as composite and S-video. According to the datasheet, the THS7375 is ideal for all video buffer applications, making it a key component in DVD player video output stages.
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Video Surveillance System
The THS7375 is used in video surveillance systems to buffer and filter SDTV camera signals. Its four channels can handle multiple camera feeds, and the 6th-order filter removes noise from the video DAC. The rail-to-rail output drives 75-ohm coaxial cables, maintaining signal integrity over long distances. The 3 V to 5 V supply range allows operation from common surveillance power rails. The low power consumption is beneficial for systems with many cameras. The device's ability to drive two lines per channel enables distribution to multiple monitors or recorders. According to the datasheet, the THS7375 is the perfect choice for video buffer applications, ensuring reliable video transmission in surveillance systems.
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Portable Video Device
In portable video devices such as camcorders and handheld TVs, the THS7375 provides video output with minimal power consumption. Its 3 V to 5 V supply is compatible with battery-powered systems. The integrated filter eliminates the need for external components, saving space and cost. The rail-to-rail output ensures maximum video signal swing even at low supply voltages. The TSSOP-14 package is compact, fitting into tight layouts. The device's low power draw extends battery life, which is critical for portable devices. According to the datasheet, the THS7375 is ideal for video buffer applications, making it a suitable choice for portable video output stages.
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Automotive Infotainment
The THS7375 is used in automotive infotainment systems to buffer and filter video signals for rear-seat entertainment and backup cameras. Its four channels can handle multiple video sources. The 6th-order filter ensures clean SDTV signals, and the rail-to-rail output drives 75-ohm cables to displays. The 3 V to 5 V supply is suitable for automotive power rails. The device's low power consumption is important for vehicle electrical systems. The TSSOP-14 package is robust for automotive environments. According to the datasheet, the THS7375 is the perfect choice for video buffer applications, making it a reliable component in automotive video systems.
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Video Conferencing Equipment
In video conferencing systems, the THS7375 buffers and filters SDTV video signals from cameras and codecs. Its four channels can handle multiple video streams, and the 6th-order filter removes artifacts from the DAC. The rail-to-rail output drives 75-ohm cables to displays or projectors. The 3 V to 5 V supply is compatible with standard logic levels. The low power consumption is beneficial for always-on conferencing equipment. The device's ability to drive two lines per channel allows for dual outputs, such as local and remote displays. According to the datasheet, the THS7375 is ideal for video buffer applications, ensuring high-quality video in conferencing systems.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für THS7375 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | THS7375IPWR | THS7374IPWR | NJM2267M | AD8073 |
|---|---|---|---|---|---|
| Package | TSSOP-14 | TSSOP-14 | TSSOP-14 | TSSOP-14 | TSSOP-14 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | NJR Corporation | Analog Devices |
| Number of Channels | 4 | 4 | 3 | 4 | 3 |
| Supply Voltage Range | 3 V to 5 V | 3 V to 5 V | 3 V to 5 V | 4.5 V to 5.5 V | 5 V to 12 V |
| RoHS Compliant | Yes | Yes | Yes | Yes | Yes |
Wichtigste Unterscheidungsmerkmale
- Integrated 6th-order Butterworth filter (vs. AD8073)
- 4-channel capability (vs. THS7374IPWR)
- Low supply voltage operation (vs. AD8073)
Designhinweise
Decouple the VCC pin with a 0.1 uF ceramic capacitor placed as close as possible to the pin. Additionally, a 10 uF bulk capacitor is recommended if the supply is shared with other components. The THS7375 operates from 3 V to 5 V, so ensure the supply is within this range and stable. According to the datasheet, proper decoupling is essential for maintaining video signal integrity.
For optimal performance, keep the input and output traces short and use 75-ohm controlled impedance traces for video signals. Place the THS7375 close to the video connector to minimize trace length. Use a solid ground plane under the device to reduce noise. The TSSOP-14 package has a thermal pad that should be soldered to the PCB for better heat dissipation, though power dissipation is low.
Do not exceed the absolute maximum supply voltage of 5.5 V. Ensure the input signals are within the common-mode range of the amplifier. If the filter is not needed, connect the FILTER_BYPASS pin to VCC to disable it. Incorrect termination of the output can cause reflections and signal degradation; always terminate with 75-ohm resistors to ground.
Compliance-Informationen
According to TI product page, the THS7375 is lead-free and green (RoHS) compliant. No AEC-Q100 qualification is mentioned, so it is not applicable for automotive.
