Texas Instruments SN65LVDS95DGGRG4

Overview

SN65LVDS95DGGRG4 from Texas Instruments is a 21-channel LVDS serializer transmitter with integrated 7× PLL clock synthesizer, 3× LVDS data output pairs (Y0–Y2), and differential CLKOUT; operates at 3.3 V, supports 20–68 MHz input clock, delivers up to 1.428 Gbps aggregate throughput, and targets high-noise industrial backplane bus extension.

For engineers reviewing the SN65LVDS95DGGRG4 datasheet, SN65LVDS95DGGRG4 pinout, SN65LVDS95DGGRG4 application, or SN65LVDS95DGGRG4 equivalent, key selection criteria include 21-bit parallel-to-serial compression ratio, 3.3-V single-supply operation, 5-V-tolerant TTL inputs, LVDS EIA/TIA-644 compliance, and shutdown-controlled power gating.

Technical Context

The SN65LVDS95DGGRG4 implements three parallel-load 7-bit shift registers synchronized to CLKIN's rising edge, with internal 7× frequency multiplication driving serial output across three LVDS channels and a phase-aligned CLKOUT. Its PLL requires no external components and locks over 20–68 MHz.

All 21 data inputs (D0–D20) and CLKIN are LVTTL-compatible and 5-V tolerant; SHTDN is an active-low shutdown control that clears internal registers and disables LVDS drivers, reducing consumption to <1 mW. Outputs meet ANSI EIA/TIA-644 differential signaling standards with 247–454 mV |VOD| and 1.125 V VOC(SS).

Key Specifications

Pinout & Package

TSSOP-48 package (DGG), 12.6 mm × 6.2 mm × 1.2 mm max height, 0.5-mm pitch, RoHS-compliant NIPDAU finish, MSL Level-2-260°C-1 year.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LVDS serializer applications.

Compared with SN65LVDS95DGGR and SN65LVDS95-Q1, the SN65LVDS95DGGRG4 provides identical core functionality in tube packaging-ideal for evaluation and pilot runs-while avoiding automotive qualification overhead and enabling faster procurement cycles for industrial designs.

Availability

SN65LVDS95DGGRG4 is available at Aetrix Electronics and suitable for industrial backplane extension, high-density I/O interfacing, virtual backplane transceivers, FPGA-to-peripheral serialization, and noise-sensitive control system links requiring stable component supply and long-term lifecycle support.

Supply support for SN65LVDS95DGGRG4 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, precision, and energy efficiency.

The SN65LVDS95DGGRG4 belongs to TI's LVDS SerDes portfolio, designed specifically for high-integrity, low-EMI point-to-point data transmission in industrial automation, test equipment, and programmable logic interfaces.

FAQ

What is the maximum input clock frequency supported by the SN65LVDS95DGGRG4?

The SN65LVDS95DGGRG4 supports an input clock (CLKIN) frequency range of 20 MHz to 68 MHz, as specified in the recommended operating conditions. Operation above 68 MHz is not guaranteed and may result in failed PLL lock or timing violations. The device achieves its rated 1.428 Gbps throughput at the upper limit of this range.

Does the SN65LVDS95DGGRG4 require external components for PLL operation?

No, the SN65LVDS95DGGRG4 integrates a fully self-contained 7× PLL with no external components required. The PLL locks directly to the CLKIN signal within the 20–68 MHz range and generates the high-speed serial clock internally. This eliminates crystals, capacitors, or loop filters from the bill of materials.

Can the SN65LVDS95DGGRG4 interface directly with 5-V logic systems?

Yes, the SN65LVDS95DGGRG4 features 5-V tolerant parallel inputs (D0–D20 and CLKIN), allowing direct connection to 5-V TTL or CMOS logic without level-shifting circuitry. Input thresholds are defined at VIH = 2 V and VIL = 0.8 V, ensuring reliable recognition of 5-V signals at 3.3-V supply.

How does the SHTDN pin function on the SN65LVDS95DGGRG4?

The SHTDN pin on the SN65LVDS95DGGRG4 is an active-low shutdown control. When pulled low, it clears all internal shift registers to logic low and disables the LVDS output drivers, reducing total supply current to under 1 mW. Release from shutdown restores normal operation after ~1 ms enable time (ten).

What is the purpose of separate VCC, LVDSVCC, and PLLVCC supply pins on the SN65LVDS95DGGRG4?

The SN65LVDS95DGGRG4 uses segregated power domains: VCC powers core logic and input buffers, LVDSVCC supplies the LVDS output drivers, and PLLVCC powers the phase-locked loop. This isolation minimizes noise coupling-especially critical for jitter-sensitive clock synthesis-and allows independent decoupling for optimal signal integrity in mixed-signal layouts.