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Texas Instruments SN65LVDS9637DGKR
- Part No.:
- SN65LVDS9637DGKR
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
SN65LVDS9637DGKR.pdf
- Description:
- IC TRANSCEIVER 0/2 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,261
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Product details
Overview
SN65LVDS9637DGKR from Texas Instruments is a dual-channel LVDS line receiver IC operating from a single 3.3-V supply, delivering LVTTL-compatible outputs with ±100-mV differential input threshold, 2.1-ns typical propagation delay, and open-circuit fail-safe functionality. It supports up to 150 Mbps signaling rates in point-to-point or multidrop data links for telecom infrastructure backplanes.
For engineers reviewing the SN65LVDS9637DGKR datasheet, SN65LVDS9637DGKR pinout, SN65LVDS9637DGKR application, or SN65LVDS9637DGKR equivalent, key selection criteria include its VSSOP-8 package, 300-kΩ internal fail-safe pullups, bus-terminal ESD protection exceeding 8 kV, and compatibility with ANSI/TIA/EIA-644 LVDS standards.
Technical Context
The SN65LVDS9637DGKR implements two independent LVDS receivers in a single VSSOP-8 package, each with high-impedance differential inputs, CMOS LVTTL outputs, and no enable control-unlike SN65LVDS3486 (dual-enable) or SN65LVDS32 (quad with global enable). Its input stage includes integrated 300-kΩ pullup resistors to VCC per A/B terminal for open-circuit fail-safe operation, ensuring high output when inputs are floating.
It operates across –40°C to +85°C with supply voltage from 3.0 V to 3.6 V, supports common-mode input range from 0.05 V to 2.35 V, and maintains valid logic output for |VID| ≥ 100 mV. Unlike quad-receiver variants, it lacks channel enable pins, simplifying interface design for compact dual-channel applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3-V rail; no external regulation required |
| Differential Input Threshold | ±100 mV max - ensures reliable detection of LVDS signals even with noise margin |
| Propagation Delay | 2.1 ns typical - enables stable operation at up to 150 Mbps data rate |
| Output Type | LVTTL logic levels - directly interfaces with 3.3-V FPGA, ASIC, or microcontroller I/O |
| Fail-Safe Input | 300 kΩ internal pullups to VCC on each A/B input - forces high output during cable disconnect or driver disable |
| ESD Protection | ±8 kV HBM - meets industrial system robustness requirements without external TVS |
| Operating Temperature | –40°C to +85°C - qualified for telecom and industrial embedded environments |
Pinout & Package
VSSOP-8 package (3.00 mm × 3.00 mm), thermally enhanced, lead-free, RoHS-compliant surface-mount package optimized for high-density PCB layouts.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | 3.3-V supply input - must be decoupled locally with 0.1-μF ceramic capacitor |
| 2 | 1Y | Channel 1 LVTTL output - active-high, drives standard CMOS loads |
| 3 | 2Y | Channel 2 LVTTL output - electrically isolated from 1Y; no crosstalk in layout |
| 4 | GND | Ground reference - requires low-inductance connection to PCB ground plane |
| 5 | 2B | Channel 2 LVDS inverting input - paired with 2A; accepts differential swing down to ±100 mV |
| 6 | 2A | Channel 2 LVDS non-inverting input - forms differential pair with 2B; high-impedance (≥300 kΩ) |
| 7 | 1B | Channel 1 LVDS inverting input - paired with 1A; includes internal 300-kΩ pullup to VCC |
| 8 | 1A | Channel 1 LVDS non-inverting input - forms differential pair with 1B; same fail-safe structure as 1B |
Key Features
| Feature | Design Value |
|---|---|
| ANSI/TIA/EIA-644 compliance | Fully compliant LVDS receiver - interoperable with TI, Maxim, ON Semi, and other LVDS drivers |
| Open-circuit fail-safe | Internal 300-kΩ pullups on all four A/B inputs - guarantees high output during cable removal or driver shutdown |
| No enable pins | Always-active dual-channel architecture - eliminates enable timing constraints and reduces BOM count |
| Low power consumption | 5.5–10 mA supply current - enables use in thermally constrained modules without heatsinking |
| High noise immunity | Common-mode input range of 0.05 V to 2.35 V - tolerates up to 1-V ground potential difference between nodes |
Applications
| Telecom Backplane Interconnect | Industrial Camera Interface |
|---|---|
|
Use Scenario: High-speed serial data transmission between line cards in a 1U telecom chassis using controlled-impedance PCB traces. IC Role / Device Role / Timing Role: LVDS receiver converting differential signals from remote SERDES to single-ended LVTTL for local FPGA processing. Use Value: 150 Mbps capability and 2.1-ns delay ensure sub-bit-period timing margins; fail-safe prevents undefined state during hot-swap events. |
Use Scenario: Receiving pixel clock and parallel video data streams from a CMOS image sensor over flexible flat cable in factory automation cameras. IC Role / Device Role / Timing Role: Dual-channel LVDS termination and level translation for clock + data lanes in machine vision systems. Use Value: 300-kΩ internal pullups eliminate need for external biasing components, reducing board area and assembly cost by 2 discrete parts per channel. |
| Medical Imaging Data Link | Test Equipment Signal Acquisition |
|
Use Scenario: Capturing real-time ultrasound echo data from analog front-end ADCs transmitted via LVDS to host DSP over 15-cm flex PCB. IC Role / Device Role / Timing Role: Robust LVDS receiver maintaining signal integrity in EMI-sensitive diagnostic equipment with strict EMC requirements. Use Value: ±8 kV HBM ESD rating allows direct connection to connectors without additional protection, simplifying layout and passing IEC 61000-4-2 Level 4. |
Use Scenario: Digitizing high-frequency analog waveforms in automated test equipment using LVDS-sampled ADC outputs routed to acquisition FPGA. IC Role / Device Role / Timing Role: Low-skew dual-receiver capturing synchronized sample clock and data bus for time-critical waveform reconstruction. Use Value: Channel-to-channel skew ≤0.3 ns ensures phase alignment across clock/data paths, critical for <100-ps timebase accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LVDS receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN65LVDS32DR | Quad-channel, SOIC-16, includes global enable (G) pin; higher ICC (10–18 mA) | Suitable for systems requiring channel gating or shared enable control across four receivers | Choose SN65LVDS32DR only if quad density and enable functionality justify larger footprint and higher power |
| SN65LVDS3486D | Quad-channel, TSSOP-16, dual enable groups (1,2EN / 3,4EN); identical 150-Mbps rating | Better suited for multi-lane protocols (e.g., Camera Link base) needing independent lane control | Select SN65LVDS3486D when per-pair enable is required; avoid for simple dual-channel links due to pin count overhead |
Compared with SN65LVDS32DR and SN65LVDS3486D, the SN65LVDS9637DGKR offers minimal footprint (VSSOP-8), lowest component count (no enable logic needed), and lowest power draw-making it optimal for space-constrained dual-channel LVDS termination where always-on operation is acceptable.
Availability
SN65LVDS9637DGKR is available at Aetrix Electronics and suitable for telecom infrastructure, industrial camera interfaces, and medical imaging systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for SN65LVDS9637DGKR 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-speed interface solutions.
The SN65LVDS9637DGKR belongs to TI's SNx5LVDSxx family of LVDS receivers, designed specifically for robust, low-power, high-speed point-to-point and multidrop data transmission in telecom, industrial, and medical systems.
FAQ
What is the maximum data rate supported by the SN65LVDS9637DGKR?
The SN65LVDS9637DGKR is characterized for operation up to 150 Mbps, as confirmed in the device options table and switching characteristics section of the official datasheet (SLLS262R). This rating applies across the full operating temperature range (–40°C to +85°C) and supply voltage (3.0 V to 3.6 V), with typical propagation delay of 2.1 ns enabling reliable bit sampling at this rate.
Does the SN65LVDS9637DGKR have enable pins?
No, the SN65LVDS9637DGKR does not include enable pins. Unlike SN65LVDS32 (global G pin) or SN65LVDS3486 (dual 1,2EN/3,4EN), the SN65LVDS9637DGKR features an always-active dual-receiver architecture. Its pinout (VSSOP-8) contains only VCC, GND, two A/B differential inputs per channel, and two LVTTL outputs - no enable terminals are present or functional.
How does the open-circuit fail-safe function work in the SN65LVDS9637DGKR?
The SN65LVDS9637DGKR implements open-circuit fail-safe using internal 300-kΩ pullup resistors connected from each A and B input to VCC. When inputs are floating (e.g., disconnected cable), these resistors bias both lines near VCC, creating a common-mode condition detected by internal circuitry to force the output high - guaranteeing a defined logic state without external components.
What is the input common-mode voltage range for the SN65LVDS9637DGKR?
The SN65LVDS9637DGKR supports an input common-mode voltage range of 0.05 V to 2.35 V, as specified in the Recommended Operating Conditions table. This wide range accommodates up to 1 V of ground potential difference between transmitter and receiver, making it suitable for systems with distributed power domains or long interconnects.
Is the SN65LVDS9637DGKR pin-compatible with other devices in the SNx5LVDSxx family?
No, the SN65LVDS9637DGKR is not pin-compatible with SN65LVDS32 or SN65LVDS3486. It uses an 8-pin VSSOP package with dedicated dual-channel I/O, while SN65LVDS32 (SOIC-16) and SN65LVDS3486 (TSSOP-16) are quad-channel packages with enable pins and different pin assignments. Direct replacement would require PCB redesign.
SN65LVDS9637DGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 65LVDS
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Receiver
- Protocol:
- LVDS
- Number of Drivers/Receivers:
- 0/2
- Duplex:
- -
- Receiver Hysteresis:
- -
- Data Rate:
- 150Mbps
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
SN65LVDS9637DGKR FAQ
1.How can I place an order for SN65LVDS9637DGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN65LVDS9637DGKR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of SN65LVDS9637DGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65LVDS9637DGKR is usually 5 days.
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Once your SN65LVDS9637DGKR 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.
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For technical support, including SN65LVDS9637DGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65LVDS9637DGKR requirements.
6.How does Aetrix verify that SN65LVDS9637DGKR is sourced from the original manufacturer or authorized distributors?
All SN65LVDS9637DGKR 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 SN65LVDS9637DGKR meets industry standards.
7.What is the process for return or replacement of SN65LVDS9637DGKR?
All SN65LVDS9637DGKR units undergo pre-shipment inspection (PSI). If there is an issue with SN65LVDS9637DGKR, 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 SN65LVDS9637DGKR part is unused and in its original packaging.
Return procedure for SN65LVDS9637DGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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