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Texas Instruments THS7347IPHP
- Part No.:
- THS7347IPHP
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 48-PowerTQFP
- Datasheet:
-
THS7347IPHP.pdf
- Description:
- IC AMP BUFFER 48HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,415
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Product details
Overview
THS7347IPHP from Texas Instruments is a 3-channel RGBHV video buffer IC with I²C control, 2:1 input multiplexer per channel, monitor pass-through path (6 dB gain), and selectable input bias modes (AC-tip clamp, AC-bias, DC, DC+Offset). It delivers 500-MHz bandwidth, 1200-V/μs slew rate, and rail-to-rail output swing for driving ADCs and video decoders in projector and professional video systems.
For engineers reviewing the THS7347IPHP datasheet, THS7347IPHP pinout, THS7347IPHP application, or THS7347IPHP equivalent, this page provides verified functional specifications, confirmed I²C-addressable channel configuration, validated monitor pass-through SAG correction capability, and exact HTQFP-48 PowerPAD™ package mapping - all critical for RGB+HV signal integrity and system-level timing alignment.
Technical Context
The THS7347IPHP integrates three independent video amplifier channels, each with dual-input (A/B) 2:1 mux controlled via I²C or GPIO, plus dedicated H/V sync paths featuring externally adjustable Schmitt trigger thresholds (0.9–2 V range). Each channel supports configurable input coupling: AC with sync-tip clamp (for CVBS/Y′), AC with fixed bias (for R′G′B′), or DC with/without offset shift.
It implements two parallel signal paths per channel: a unity-gain buffer (500 MHz, 1200 V/μs) optimized for ADC buffering, and a 6-dB-gain monitor pass-through path (500 MHz, 1300 V/μs) with SAG correction and high-impedance disable state (>500 kΩ || 8 pF). Rail-to-rail output stage enables both AC- and DC-coupled outputs under single 2.7–5-V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 5 V single supply; VA must equal or exceed VDD - enables direct integration into 3.3-V or 5-V video front-end power domains. |
| Small-Signal Bandwidth | 500 MHz (buffer), 450 MHz (monitor) at 3.3 V - preserves full HD/EDTV signal fidelity up to 1080p60 without group delay distortion. |
| Slew Rate | 1200 V/μs (buffer), 1300 V/μs (monitor) at 3.3 V - ensures accurate reproduction of fast sync edges and transient video content. |
| Differential Gain/Phase | 0.05%/0.05° (NTSC/PAL, buffer) - meets broadcast-grade color fidelity requirements for professional video routing. |
| I²C Interface | Standard/Fast Mode (100/400 kHz); address 01011A1A0R/W - allows dynamic per-channel reconfiguration without firmware reset. |
| Quiescent Current | 80 mA (active, 3.3 V), 0.1 μA (all channels disabled) - supports low-power standby in portable or thermally constrained projectors. |
| Package | HTQFP-48 PowerPAD™ (PHP), RoHS-compliant - provides thermal performance (θJC = 1.2°C/W) essential for sustained video bandwidth operation. |
Pinout & Package
THS7347IPHP is housed in a 48-pin HTQFP PowerPAD™ package with exposed thermal pad (pin 48 connected to +VA). The package supports fine-pitch PCB layout (0.5-mm lead pitch) and requires thermal vias under the PowerPAD for junction temperature control below +125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH. 1, INPUT A / B (pins 1, 7) | Video differential input pair | Accepts RGB/HV baseband signals; supports AC-coupled tip-clamp or DC-coupled configurations per channel. |
| CH. 1, BUFFER OUTPUT (pins 35, 36) | Unity-gain analog output | Drives ADC/scaler inputs; rail-to-rail swing (0.1 V to 3.2 V @ 3.3 V) enables direct interface with 10-bit+ converters. |
| CH. 1, MONITOR OUTPUT (pin 46) | 6-dB-gain pass-through output | Feeds secondary display or monitoring path; includes SAG correction pin (45) for low-frequency droop compensation. |
| SCL / SDA (pins 20, 19) | I²C serial interface | Configures mux selection, bias mode, and enable/disable per channel; pull-up resistors required (2–19 kΩ to VDD). |
| MUX MODE / SELECT (pins 15, 16) | Hardware mux control | Enables GPIO-based mux selection (low) or I²C-only control (high) - supports both firmware and hardware fallback. |
| +VA (pins 29, 33, 38, 48) | Analog supply input | Must be ≥ VDD; powers all amplifiers and bias circuits - decoupling with 0.1 μF ceramic + 100 μF bulk capacitor is mandatory. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel I²C configurability | Independent setup of input bias mode, mux source, and enable state - eliminates need for external logic or multiple ICs in multi-format systems. |
| Monitor pass-through with SAG correction | Integrated 6-dB amplifier + SAG pin (e.g., pin 45) compensates for low-frequency attenuation in long coaxial cables - avoids external RC networks. |
| Adjustable H/V sync Schmitt trigger | External voltage on SCHMITT-TRIGGER ADJ (pin 14) sets threshold from 0.9 V to 2.0 V - ensures reliable sync edge detection across varying signal amplitudes. |
| Rail-to-rail output stage | Swings within 0.1 V of rails at 3.3 V - supports both AC-coupled (capacitor + termination) and DC-coupled (75 Ω to GND/1.65 V) video loads. |
| Power-Up Control (PUC) | Pin 21 configures default state: GND disables all outputs at startup; VDD enables monitor pass-through with AC-bias - prevents glitching during boot. |
Applications
| RGB Projector Input Buffering | Professional Video Switcher Front-End |
|---|---|
Use Scenario: Accepting R′G′B′ analog inputs from multiple sources (DVD, PC, camera) into a 1080p DLP projector with embedded scaler and ADC. IC Role / Device Role / Timing Role: THS7347IPHP acts as channelized RGB buffer and sync conditioner - each channel drives one color path while H/V sync paths feed timing recovery circuitry. Use Value: 500-MHz bandwidth and 0.05% differential gain preserve color accuracy; I²C per-channel control enables real-time source switching without video interruption. |
Use Scenario: Signal conditioning in a broadcast-grade SDI-to-analog converter where RGBHV outputs must meet SMPTE 293M linearity specs. IC Role / Device Role / Timing Role: THS7347IPHP serves as final-stage analog driver before distribution amplifiers - its 6-dB monitor path feeds waveform monitors while unity-gain buffers drive primary outputs. Use Value: SAG correction (via CH.x SAG pins) maintains flat frequency response to 10 MHz; DC-coupled mode supports genlock reference injection without AC-blocking capacitors. |
| HDTV Set-Top Box Video Decoder Interface | Medical Imaging Display Signal Conditioning |
Use Scenario: Feeding decoded Y′P′BP′R′ signals from an HDMI receiver IC into a triple ADC for digital processing in a 4K-capable STB. IC Role / Device Role / Timing Role: THS7347IPHP functions as ADC interface buffer - its unity-gain path drives 12-bit ADCs with <1.2 ns group delay matching across channels. Use Value: 1200-V/μs slew rate prevents transient-induced distortion on sharp chroma transitions; disable mode reduces idle power to 0.1 μA during standby. |
Use Scenario: Conditioning RGB video from ultrasound or MRI console for high-resolution diagnostic displays requiring zero color drift over 8-hour shifts. IC Role / Device Role / Timing Role: THS7347IPHP operates as precision video buffer - DC+Offset bias mode enables full 0–2.5 V dynamic range at output with 0-V input, critical for grayscale calibration. Use Value: ±80 mV max output offset and 20 μV/°C drift ensure stable black level over ambient temperature swings; 65 dB SNR supports >10-bit effective resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RGBHV video buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS7374IPHP | 4-channel version with identical architecture, same 500-MHz bandwidth and I²C control, but adds fourth channel for H/V sync separation. | Required when discrete horizontal and vertical sync buffering is needed instead of shared H/V paths. | Select THS7374IPHP only if fourth channel is utilized; THS7347IPHP saves cost and board space for 3-channel RGB+HV systems. |
| LMH6738MQX | Single-channel 600-MHz current-feedback amplifier; no I²C, no mux, no monitor path, no SAG correction. | Suitable only for fixed-configuration, single-path ADC buffering where flexibility and secondary output are unnecessary. | Choose LMH6738MQX for ultra-low-noise (<2.1 nV/√Hz) single-channel designs; THS7347IPHP is mandatory for integrated multi-source RGB+HV systems. |
Compared with THS7374IPHP, THS7347IPHP reduces channel count and BOM cost while retaining identical per-channel performance and feature set; compared with LMH6738MQX, it delivers system-level integration (mux, I²C, dual-path, SAG) unattainable with discrete op-amps - making THS7347IPHP the only solution for compact, reconfigurable RGBHV front-ends.
Availability
THS7347IPHP is available at Aetrix Electronics and suitable for professional video switchers, medical imaging displays, and RGB projector input systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for THS7347IPHP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in high-performance signal chain solutions.
The THS7347IPHP belongs to TI's high-speed video amplifier product line, engineered specifically for RGB+HV signal integrity in professional and consumer video equipment - emphasizing bandwidth, low distortion, flexible biasing, and system-level integration.
FAQ
What is the maximum operating supply voltage for THS7347IPHP?
The THS7347IPHP supports analog supply voltage (VA) up to 5.5 V and digital supply (VDD) up to 5.5 V, with recommended operation from 2.7 V to 5 V. At 3.3 V, it achieves 500-MHz small-signal bandwidth and 1200-V/μs slew rate. Exceeding 5.5 V risks permanent damage per absolute maximum ratings.
Does THS7347IPHP support DC-coupled video inputs?
Yes, THS7347IPHP supports DC-coupled inputs via its selectable bias modes - including "DC" and "DC+Offset" configurations. In DC+Offset mode with VIN = 0 V, the bias output voltage is 235 mV (min/max 145–350 mV at 3.3 V), enabling full dynamic range utilization without AC-blocking capacitors.
How is the I²C address configured for THS7347IPHP?
The THS7347IPHP uses a 7-bit I²C address of 01011xx, where bits A1 (pin 17) and A0 (pin 18) determine the two LSBs. Connecting A1/A0 to VDD/GND sets the address to 0x2B, 0x29, 0x2A, or 0x28. The device complies with I²C Specification v2.1 and supports Standard (100 kHz) and Fast Mode (400 kHz).
What is the purpose of the SAG pin on THS7347IPHP?
The SAG pin (e.g., pin 45 for Channel 1) connects to the monitor output to enable SAG (sagittal) correction - an internal circuit that compensates for low-frequency droop in AC-coupled video signals over long cables. When unused, it must be shorted directly to its corresponding monitor output pin.
Can THS7347IPHP drive 75-Ω video loads directly?
Yes, THS7347IPHP's monitor output is specified for 75-Ω loads: at 3.3 V, it delivers 2.9 V (min) high swing and 0.08 V (typ) low swing into 75 Ω to GND. Its 0.4-Ω typical output impedance ensures minimal signal reflection and optimal power transfer into standard video termination.
THS7347IPHP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-PowerTQFP
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Buffer
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 3
- -3db Bandwidth:
- 550 MHz
- Slew Rate:
- 1200V/µs
- Current - Supply:
- 90 mA
- Current - Output / Channel:
- 110 mA
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-HTQFP (7x7)
THS7347IPHP FAQ
1.How can I place an order for THS7347IPHP through Aetrix?
Please submit a Request for Quotation (RFQ) for THS7347IPHP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for THS7347IPHP reliable?
The price and inventory of THS7347IPHP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS7347IPHP is usually 5 days.
3.What payment methods are accepted for THS7347IPHP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS7347IPHP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS7347IPHP?
THS7347IPHP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS7347IPHP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for THS7347IPHP?
For technical support, including THS7347IPHP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS7347IPHP requirements.
6.How does Aetrix verify that THS7347IPHP is sourced from the original manufacturer or authorized distributors?
All THS7347IPHP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that THS7347IPHP meets industry standards.
7.What is the process for return or replacement of THS7347IPHP?
All THS7347IPHP units undergo pre-shipment inspection (PSI). If there is an issue with THS7347IPHP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The THS7347IPHP part is unused and in its original packaging.
Return procedure for THS7347IPHP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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