Texas Instruments SN65LVDS95DGGG4

Overview

SN65LVDS95DGGG4 from Texas Instruments is a 21-channel LVDS serializer transmitter with integrated 7× PLL, 3.3-V single-supply operation, 20–68 MHz input clock range, and 1.428 Gbps aggregate throughput. It converts 21-bit LVTTL parallel data plus clock into four LVDS differential pairs (three data + one clock) for low-EMI point-to-point transmission up to 10 meters over balanced media.

For engineers reviewing the SN65LVDS95DGGG4 datasheet, SN65LVDS95DGGG4 pinout, SN65LVDS95DGGG4 application, or SN65LVDS95DGGG4 equivalent, key selection criteria include its 48-pin TSSOP package, 5-V-tolerant inputs, 6-kV HBM ESD rating on bus pins, shutdown-controlled <1 mW standby power, and compatibility with SN65LVDS96 receiver in backplane extension and virtual backplane transceiver systems.

Technical Context

The SN65LVDS95DGGG4 implements three independent 7-bit parallel-load serial-out shift registers synchronized to CLKIN's rising edge, with internal 7× clock multiplication driving three serialized LVDS data streams (Y0P/Y0M, Y1P/Y1M, Y2P/Y2M) and a phase-aligned LVDS clock output (CLKOUTP/CLKOUTM). All outputs comply with ANSI EIA/TIA-644 LVDS standards.

Its PLL requires no external components, locks across 20–68 MHz input frequencies, and delivers sub-0.2 ns output skew between serial bit positions. The SHTDN pin enables active-low shutdown, clearing internal registers and disabling LVDS drivers within 250 ns while drawing only 280 µA in disabled state.

Key Specifications

Pinout & Package

TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm × 1.2 mm max height, 0.5 mm pitch, RoHS-compliant NiPdAu lead 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 SN65LVDS95DGGG4 provides identical core functionality in tube packaging optimized for engineering validation, offering faster sample access and flexibility for design iteration without committing to reel-based procurement.

Availability

SN65LVDS95DGGG4 is available at Aetrix Electronics and suitable for industrial backplane extension, virtual backplane transceivers, high-speed camera interfaces, and medical imaging data links requiring stable component supply and long-term manufacturability.

Supply support for SN65LVDS95DGGG4 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 for industrial, automotive, and personal electronics markets.

The SN65LVDS95DGGG4 belongs to TI's LVDS SerDes portfolio, designed specifically for high-integrity, low-EMI parallel-to-serial conversion in subsystem interconnects where board space, cable weight, and electromagnetic compliance are critical constraints.

FAQ

What is the maximum supported input clock frequency for SN65LVDS95DGGG4?

The SN65LVDS95DGGG4 supports an input clock 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 increased jitter. The device achieves optimal timing alignment and minimal output skew within this validated range, making it suitable for standard video pixel clocks and industrial bus frequencies.

Does SN65LVDS95DGGG4 require external passive components for PLL operation?

No, SN65LVDS95DGGG4 requires no external components for PLL operation. Its integrated 7× clock synthesizer functions autonomously across the full 20–68 MHz input range without external capacitors, resistors, or crystals. This eliminates tuning complexity and improves system reliability compared to discrete PLL implementations that demand precise loop-filter design and calibration.

Can SN65LVDS95DGGG4 interface directly with 5-V logic systems?

Yes, SN65LVDS95DGGG4 features 5-V-tolerant data inputs (D0–D20) and CLKIN, allowing direct connection to 5-V TTL or CMOS logic without level shifters. Input voltage thresholds are defined at VIH = 2.0 V and VIL = 0.8 V, ensuring robust recognition of 5-V logic levels while operating from a 3.3-V supply - a key advantage in mixed-voltage industrial subsystems.

What is the purpose of separate LVDSVCC and PLLVCC pins on SN65LVDS95DGGG4?

The SN65LVDS95DGGG4 uses dedicated LVDSVCC and PLLVCC pins to isolate power domains for LVDS output drivers and the phase-locked loop circuitry. This separation prevents switching noise from the high-speed LVDS outputs from modulating the sensitive PLL reference path, thereby maintaining low jitter (<±300 ps cycle-to-cycle) and stable lock under dynamic load conditions - essential for deterministic serial timing.

How does the SHTDN pin affect internal register state in SN65LVDS95DGGG4?

When SHTDN is driven low, SN65LVDS95DGGG4 immediately clears all three 7-bit shift registers to logic low, disables the LVDS output drivers, and halts the PLL. The device enters a <1 mW standby mode drawing only 280 µA. Upon SHTDN return to high, the PLL relocks and registers resume sampling D0–D20 on the next CLKIN rising edge - no reset sequence or initialization delay is required.