My Inquiry
My Account
Texas Instruments LM98620VHB/NOPB
- Part No.:
- LM98620VHB/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Video Processing
- Package:
- 80-TQFP
- Datasheet:
-
LM98620VHB/NOPB.pdf
- Description:
- IC VID IMAGING SGNL PROC 80TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,800
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM98620VHB/NOPB from Texas Instruments is a 10-bit, 70 MSPS, 6-channel imaging signal processor with LVDS output, integrating CDS/SH sampling, programmable PGA (1x–10x), dual-stage offset correction (±4-bit CDAC + ±10-bit FDAC), and digital black/white level calibration loops. It processes RGB analog inputs (OSR1/2, OSG1/2, OSB1/2) for high-speed scanner and digital copier front-ends.
For engineers reviewing the LM98620VHB/NOPB datasheet, LM98620VHB/NOPB pinout, LM98620VHB/NOPB application, or LM98620VHB/NOPB equivalent, this device supports 35 MHz per-channel throughput in 6-channel mode, 3.3 V single-supply operation, LVDS serialized data transmission, and independent per-channel gain/offset programming - critical for precision color image digitization.
Technical Context
The LM98620VHB/NOPB implements a 2-to-1 multiplexed architecture routing six analog input channels to three high-performance 10-bit ADCs operating up to 70 MSPS. Each channel features correlated double sampling (CDS) or sample-and-hold (SH) with selectable 1x or 2.1x gain, followed by an 8-bit PGA and dual DAC-based offset correction.
Its digital calibration loops autonomously adjust PGA gain to hit white-level targets (512–1023 LSB) and correct black-level offsets (target 127 LSB), while LVDS outputs deliver serialized pixel data across six differential pairs (TXOUTA1–C2, TXOUTA2–C2) and two clocks (TXCLK1/2) with <250 ps channel-to-channel skew at 70 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 10 bits - ensures 1024-level grayscale fidelity without missing codes across full dynamic range |
| Max Sampling Rate | 70 MSPS total - enables 35 MSPS per channel in 6-channel mode for high-resolution line-scan imaging |
| PGA Gain Range | 1x to 10x (0–20 dB) - provides fine analog gain control per channel via 8-bit setting |
| CDS/SH Gain | 1x or 2.1x - selects optimal input scaling for CCD signal amplitude matching |
| SNR | 68.5 dB at 1x gain - delivers >11-bit effective resolution for low-noise image capture |
| LVDS Output Format | 12-terminal serialized - reduces PCB trace count vs parallel interface while maintaining timing integrity |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V systems; requires separate analog/digital/LVDS rails |
Pinout & Package
LM98620VHB/NOPB uses an 80-pin TQFP package (12.0 mm × 12.0 mm body), thermally optimized for imaging AFE applications with RθJA = 32 °C/W. Power domains are segregated: VDDA/VSSA (analog), VDDD/VSSD (digital), VDDLVDS/VSSLVDS (LVDS), plus dedicated reference and clamp pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OSR1/OSR2, OSG1/OSG2, OSB1/OSB2 | Analog Input Pairs | Three differential RGB channel inputs accepting ±0.58 Vp-p (2.1x gain) or ±1.2 Vp-p (1x gain) |
| SHP/SAMPLE, SHD/HOLD | Timing Control Inputs | Define sampling window edges for CDS/SH operation; support multiple timing modes (SH1b–SH3) |
| TXCLK1/2, TXOUTA1–C2, TXOUTA2–C2 | LVDS Outputs | Two clock/data lanes carrying serialized 10-bit pixel data; meet ANSI/TIA/EIA-644 LVDS specs |
| VREFTIN1/VREFBIN1, VREFTIN2/VREFBIN2 | Reference Inputs | Accept internal (VREFTOUT/VREFBOUT) or external references for AFE and ADC voltage scaling |
| BLKCLP, AGC_ONB, CLPIN | Calibration Control | Trigger digital black-level loop, white-level auto-gain, and input clamping functions |
Key Features
| Feature | Design Value |
|---|---|
| Dual-stage offset correction | ±4-bit coarse (CDAC, ±281 mV) + ±10-bit fine (FDAC, ±111 mV) DACs enable sub-mV precision offset trimming before ADC |
| Per-channel programmability | Independent PGA gain, offset DAC values, and CDS/SH configuration per RGB channel support multi-sensor alignment |
| Digital white-level calibration | Automatically adjusts PGA to achieve user-defined white target (512–1023 LSB), eliminating manual gain tuning |
| Enhanced ESD protection | 2500 V HBM on timing/control/LVDS pins (vs. 1500 V typical) improves robustness during board handling and system integration |
| Low-noise analog front-end | –68.5 dB noise floor enables high-fidelity digitization of weak CCD signals without SNR degradation |
Applications
| High-Performance Digital Copiers | Flatbed & Sheetfed Scanners |
|---|---|
Use Scenario: Real-time digitization of reflected light from rotating drum or moving document platen using tri-linear CCD sensors. IC Role / Device Role / Timing Role: Primary AFE performing CDS, gain/offset correction, and LVDS serialization for RGB pixel streams. Use Value: 35 MSPS/channel throughput and 68.5 dB SNR preserve tonal gradation and shadow detail in 600+ DPI color reproduction. |
Use Scenario: Capturing high-fidelity color documents with automatic exposure adjustment and sensor non-uniformity compensation. IC Role / Device Role / Timing Role: Imaging signal processor managing black-level drift correction, white-level auto-gain, and LVDS data streaming to FPGA. Use Value: Digital black/white calibration loops reduce firmware complexity and eliminate manual calibration steps during production test. |
| Industrial Inspection Systems | Medical Film Digitizers |
Use Scenario: High-speed inspection of printed circuit boards or pharmaceutical packaging using line-scan cameras with RGB filters. IC Role / Device Role / Timing Role: Precision analog signal conditioner converting CCD outputs into synchronized LVDS pixel data with per-channel gain matching. Use Value: <0.2% inter-channel crosstalk and <0.13% gain error ensure accurate color registration and defect detection sensitivity. |
Use Scenario: Converting legacy X-ray film images into DICOM-compatible digital files with clinical-grade grayscale fidelity. IC Role / Device Role / Timing Role: Low-noise AFE digitizing analog film scanner outputs with programmable offset correction to handle varying film density ranges. Use Value: ±10-bit FDAC fine offset control enables precise pedestal adjustment across 4-log decades of optical density. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar imaging signal processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM98714VHBT | 14-bit resolution, 40 MSPS, 4-channel, no LVDS output (parallel CMOS only) | Better dynamic range for low-light medical imaging; lacks LVDS serialization for long-reach backplane links | Select when higher bit depth outweighs data rate and interface constraints |
| AD9945KSTZ | 12-bit, 40 MSPS, 3-channel, integrated CCD driver, no digital calibration loops | Integrated timing generator simplifies system design but requires external offset/gain control logic | Select for compact CCD camera modules where board space is constrained and calibration is handled externally |
Compared with LM98620VHB/NOPB, LM98714VHBT trades speed and LVDS for higher resolution, while AD9945KSTZ reduces component count but shifts calibration responsibility to the host processor - making LM98620VHB/NOPB optimal for high-throughput, self-calibrating RGB scanner designs.
Availability
LM98620VHB/NOPB is available at Aetrix Electronics and suitable for high-resolution digital copiers, flatbed scanners, industrial inspection systems, and medical film digitizers requiring stable component supply and long-term manufacturing continuity.
Supply support for LM98620VHB/NOPB 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 and embedded processing technologies, with decades of expertise in high-performance data converters and imaging solutions.
The LM98620VHB/NOPB belongs to TI's Imaging Signal Processor product line, designed specifically for high-speed, multi-channel CCD/CMOS sensor digitization in professional document imaging equipment.
FAQ
What is the maximum input voltage range supported by LM98620VHB/NOPB?
The LM98620VHB/NOPB supports a peak-to-peak input range of ±1.2 V at 1x CDS/SH gain and ±0.58 V at 2.1x gain. These ranges are defined relative to the analog supply (VDDA = 3.3 V) and require proper biasing of OSx inputs within 0 V to VDDA. Exceeding these levels risks clipping or saturation in the analog front-end stages of the LM98620VHB/NOPB.
Does LM98620VHB/NOPB support both CDS and Sample-and-Hold architectures?
Yes, the LM98620VHB/NOPB supports both Correlated Double Sampling (CDS) and Sample-and-Hold (SH) modes via configurable timing inputs (SHP/SAMPLE, SHD/HOLD) and internal register settings. The device implements SH2a, SH2b, SH3, and CDSb timing modes, allowing flexible synchronization with diverse CCD sensor output formats - all within the same LM98620VHB/NOPB silicon.
How does the digital white-level calibration loop function in LM98620VHB/NOPB?
The LM98620VHB/NOPB digital white-level calibration loop automatically adjusts the per-channel PGA gain to drive the ADC output toward a programmable target (512–1023 LSB). Triggered by the AGC_ONB pulse, it performs iterative gain updates until convergence, enabling consistent white-point tracking across temperature and aging - a core capability embedded in the LM98620VHB/NOPB's firmware engine.
What LVDS signaling standards does LM98620VHB/NOPB comply with?
The LM98620VHB/NOPB LVDS outputs comply with ANSI/TIA/EIA-644 standard specifications, delivering differential output voltage (VOD) of 210–420 mV and common-mode offset (VOS) of 1.17–1.28 V. Its TXCLK and TXOUT drivers maintain <250 ps channel-to-channel skew at 70 MHz, ensuring reliable high-speed serialization without requiring external termination beyond 100 Ω differential loads - fully specified in the LM98620VHB/NOPB datasheet.
Can LM98620VHB/NOPB operate with a single 3.3 V supply?
LM98620VHB/NOPB requires three separate 3.0–3.6 V supplies: VDDA/VSSA (analog), VDDD/VSSD (digital), and VDDLVDS/VSSLVDS (LVDS). While all rails share the same nominal voltage, they must be independently decoupled and routed to minimize noise coupling. Using a single shared 3.3 V source without proper domain isolation degrades SNR and may cause LVDS jitter - a constraint explicitly defined for the LM98620VHB/NOPB in its recommended operating conditions.
LM98620VHB/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 80-TQFP
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Processor
- Applications:
- Consumer Video
- Standards:
- -
- Control Interface:
- Serial
- Voltage - Supply:
- 3.0V ~ 3.6V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 80-TQFP (12x12)
LM98620VHB/NOPB FAQ
1.How can I place an order for LM98620VHB/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM98620VHB/NOPB 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 LM98620VHB/NOPB reliable?
The price and inventory of LM98620VHB/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM98620VHB/NOPB is usually 5 days.
3.What payment methods are accepted for LM98620VHB/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM98620VHB/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM98620VHB/NOPB?
LM98620VHB/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM98620VHB/NOPB 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 LM98620VHB/NOPB?
For technical support, including LM98620VHB/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM98620VHB/NOPB requirements.
6.How does Aetrix verify that LM98620VHB/NOPB is sourced from the original manufacturer or authorized distributors?
All LM98620VHB/NOPB 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 LM98620VHB/NOPB meets industry standards.
7.What is the process for return or replacement of LM98620VHB/NOPB?
All LM98620VHB/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM98620VHB/NOPB, 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 LM98620VHB/NOPB part is unused and in its original packaging.
Return procedure for LM98620VHB/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM98620VHB/NOPB Tags
-
HDMI2C1-6C1
STMicroelectronics
-
ADA4430-1YKSZ-R7
Analog Devices Inc.
-
LM1881MX/NOPB
Texas Instruments
-
SN75DP130SSRGZR
Texas Instruments
-
EQCO30T5.2
Microchip Technology
-
LMH1980MM/NOPB
Texas Instruments
-
EQCO30R5.D
Microchip Technology
-
SII9022ACNU
Lattice Semiconductor Corporation
-
SN65DP159RGZR
Texas Instruments
-
SN65DP159RSBR
Texas Instruments
-
SN65DP141RLJR
Texas Instruments
-
LMH0303SQ/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
