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Home > Products > Integrated Circuits (ICs) > Linear > Video Processing

Semtech Corporation GS1528-CTAE3

Name: GS1528-CTAE3
Brand: Semtech Corporation
SKU: GS1528-CTAE3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: GS1528-CTAE3

Manufacturer:: Semtech Corporation

Category:: Video Processing

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: GS1528-CTAE3.pdf

Description:: IC VIDEO CABLE DRIVER 8SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

GS1528-CTAE3 from Gennum is a dual-channel, multi-rate SDI cable driver IC designed for SMPTE 259M/344M/292M-compliant serial digital video transmission. It features dual differential PECL inputs, two slew-rate-selectable 75Ω coaxial outputs, 1.485 Gb/s max data rate, 800 mV_p-p output swing into 75Ω, and operates from a single 3.3 V supply at 0°C to 70°C ambient.

For engineers reviewing the GS1528-CTAE3 datasheet, pinout, applications, or equivalent options, key selection considerations include SMPTE standard compliance mode selection via SD/HD logic input, RSET-controlled output amplitude tuning, AC-coupled differential input interface, and SOIC-8 packaging with ESD-sensitive handling requirements.

Technical Context

The GS1528-CTAE3 implements a bipolar current-mode output stage with on-chip biasing and external RSET resistor control of output drive current. Its dual-output architecture supports independent coaxial cable driving with selectable rise/fall times - 400–800 ps (SD/HD = 1) for SMPTE 292M HD-SDI or 220 ps (SD/HD = 0) for SMPTE 259M/344M SD-SDI compliance.

Input stage accepts 300–2200 mV_p-p LVPECL-level differential signals with self-biased termination; no external bias resistors required. Output return loss meets ≥15 dB from 5 MHz to 1.485 GHz when used with recommended LCOMP/75Ω network per typical application circuit.

Key Specifications

Parameter	Value and Actual Design Meaning
Max Data Rate	1.485 Gb/s - supports full SMPTE 292M HD-SDI and SMPTE 344M dual-link SD-SDI operation
Output Swing	750–850 mV_p-p (typ. 800 mV_p-p) into 75Ω - matches SMPTE source impedance requirement for minimal signal distortion
Rise/Fall Time	220 ps (SD/HD = 0) or 400–800 ps (SD/HD = 1) - programmable edge control ensures compliance across SD and HD standards
Supply Voltage	3.135–3.465 V (±5% @ 3.3 V) - tight regulation required for stable output amplitude and jitter performance
Power Consumption	160 mW typ. at 25°C - enables thermal management in dense video routing PCBs without forced cooling
Input Sensitivity	300–2200 mV_p-p differential - accommodates wide range of upstream serializer output levels including pathological test patterns
Operating Temp	0°C to 70°C - qualified for commercial-grade broadcast equipment and professional AV infrastructure

Pinout & Package

GS1528-CTAE3 is housed in an 8-pin SOIC package (JEDEC MS-012AC), tape-and-reel format (250 pcs), RoHS-compliant, with gull-wing leads and 1.27 mm pitch.

Pin/Terminal	Circuit Role	Design Meaning
1, 2 (SDI, SDI)	Differential PECL Input	High-impedance, self-biased LVPECL receiver accepting AC-coupled serial video data; no external termination needed
3 (VEE)	Negative Power Rail	Connect directly to system ground; serves as reference for internal biasing and output stage common-mode level
4 (RSET)	Output Amplitude Control	External resistor sets output current - 750 Ω yields nominal 800 mV_p-p; placement must minimize parasitic capacitance
5 (VCC)	Positive Power Supply	3.3 V main supply; decoupling capacitor required near pin to suppress high-frequency switching noise
6 (SD/HD)	Slew Rate Select Logic Input	CMOS-level control: HIGH selects SD-SDI timing (SMPTE 259M/344M), LOW selects HD-SDI timing (SMPTE 292M)
7, 8 (SDO, SDO)	Differential Current-Mode Output	Drives 75Ω coaxial cable directly; requires external LC network (LCOMP + 75Ω) for return loss compliance ≥15 dB

Key Features

Feature	Design Value
Dual Slew-Rate Selection	Single SD/HD logic pin configures output edge rates for either SMPTE 259M/344M (slower) or SMPTE 292M (faster) compliance
Self-Biased Differential Input	Eliminates need for external bias resistors; supports AC-coupling with ≥4.7 µF tantalum capacitor for full pathological signal integrity
Adjustable Output Amplitude	RSET pin enables precise 600–1040 mV_p-p swing tuning via external resistor - critical for meeting SMPTE output voltage tolerance
ESD-Protected Outputs	Integrated static protection diodes safeguard against accidental discharge during board assembly and field service
Multi-Standard Compliance	Meets SMPTE 259M (270 Mb/s), SMPTE 344M (540 Mb/s), and SMPTE 292M (1.485 Gb/s) electrical specifications in one device

Applications

Broadcast Video Routing Switcher	HDTV Camera Interface Module
Use Scenario: Signal distribution from central router to multiple display monitors or recording devices over 75Ω coaxial cables up to 100m. IC Role / Device Role / Timing Role: Dual-channel cable driver retransmitting SMPTE 292M HD-SDI streams with controlled rise/fall time and return loss. Use Value: Maintains signal integrity at 1.485 Gb/s by delivering 800 mV_p-p into 75Ω with ≥15 dB return loss, minimizing bit errors in long-haul routing.	Use Scenario: Embedding HD-SDI output in professional HDTV camera heads where space and thermal budget are constrained. IC Role / Device Role / Timing Role: Final-stage driver converting internal LVPECL video data to SMPTE-compliant coaxial output with low power (160 mW). Use Value: Enables compact, fanless camera design via single 3.3 V supply and SOIC-8 footprint while meeting SMPTE 292M eye diagram mask requirements.
Medical Imaging Endoscopy System	Studio Production Monitor Distribution
Use Scenario: Transmitting real-time HD video from endoscopic sensors to surgical display units over shielded coaxial cabling in EMI-sensitive OR environments. IC Role / Device Role / Timing Role: Robust cable driver providing ESD-hardened, low-jitter (15 ps_p-p additive jitter @ 1.485 Gb/s) HD-SDI output. Use Value: Ensures diagnostic image fidelity by suppressing jitter-induced pixel corruption and maintaining SMPTE 292M return loss across operating temperature (0°C–70°C).	Use Scenario: Feeding identical HD-SDI signals to multiple studio monitors and waveform analyzers simultaneously from a master timing source. IC Role / Device Role / Timing Role: Dual-output driver supporting parallel distribution with matched channel delay and amplitude (<30 ps mismatch). Use Value: Guarantees frame-synchronous display across all monitors via tightly matched rise/fall times and <30 ps duty cycle distortion.

Broadcast Video Routing Switcher

HDTV Camera Interface Module

Use Scenario: Signal distribution from central router to multiple display monitors or recording devices over 75Ω coaxial cables up to 100m.

IC Role / Device Role / Timing Role: Dual-channel cable driver retransmitting SMPTE 292M HD-SDI streams with controlled rise/fall time and return loss.

Use Value: Maintains signal integrity at 1.485 Gb/s by delivering 800 mV_p-p into 75Ω with ≥15 dB return loss, minimizing bit errors in long-haul routing.

Use Scenario: Embedding HD-SDI output in professional HDTV camera heads where space and thermal budget are constrained.

IC Role / Device Role / Timing Role: Final-stage driver converting internal LVPECL video data to SMPTE-compliant coaxial output with low power (160 mW).

Use Value: Enables compact, fanless camera design via single 3.3 V supply and SOIC-8 footprint while meeting SMPTE 292M eye diagram mask requirements.

Medical Imaging Endoscopy System

Studio Production Monitor Distribution

Use Scenario: Transmitting real-time HD video from endoscopic sensors to surgical display units over shielded coaxial cabling in EMI-sensitive OR environments.

IC Role / Device Role / Timing Role: Robust cable driver providing ESD-hardened, low-jitter (15 ps_p-p additive jitter @ 1.485 Gb/s) HD-SDI output.

Use Value: Ensures diagnostic image fidelity by suppressing jitter-induced pixel corruption and maintaining SMPTE 292M return loss across operating temperature (0°C–70°C).

Use Scenario: Feeding identical HD-SDI signals to multiple studio monitors and waveform analyzers simultaneously from a master timing source.

IC Role / Device Role / Timing Role: Dual-output driver supporting parallel distribution with matched channel delay and amplitude (<30 ps mismatch).

Use Value: Guarantees frame-synchronous display across all monitors via tightly matched rise/fall times and <30 ps duty cycle distortion.

Equivalent & Alternatives

The following parts are listed as comparable options for similar SDI cable driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LMH0384MTX/NOPB	Single-channel, 3G-SDI (2.97 Gb/s) capable; requires external V_REF and separate power rails for input/output sections	Supports higher data rates but lacks dual-output integration and built-in slew-rate selection logic	Choose LMH0384MTX/NOPB only if 3G-SDI upgrade path or separate input/output supply domains are required
THS8200PFP	Triple-channel, 1.485 Gb/s; integrated reclocker and equalizer; consumes ~350 mW; QFP-64 package	Targets high-density video processing boards needing retiming; not drop-in compatible due to pin count and feature set	Choose THS8200PFP when signal regeneration or equalization is needed alongside driving - not for simple cable drive replacement

Compared with LMH0384MTX/NOPB and THS8200PFP, the GS1528-CTAE3 offers integrated dual-output capability with hardware-selectable slew rate in a compact SOIC-8 package and lower power (160 mW), making it optimal for cost- and space-constrained SMPTE 259M/292M distribution nodes without reclocking needs.

Availability

GS1528-CTAE3 is available at Aetrix Electronics and suitable for broadcast video routing switchers, HDTV camera interface modules, medical imaging endoscopy systems, and studio production monitor distribution requiring stable component supply and SMPTE-compliant signal integrity.

Supply support for GS1528-CTAE3 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

Gennum Corporation was a Canadian semiconductor company specializing in high-speed analog and mixed-signal ICs for professional video, communications, and data acquisition before its acquisition by Semtech in 2013.

The GS1528-CTAE3 belongs to the HD-LINX II family, engineered specifically for robust, multi-standard SDI cable driving in broadcast infrastructure - emphasizing low jitter, configurable slew rate, and seamless interoperability with companion Gennum serializers and receivers.

FAQ

What SMPTE standards does the GS1528-CTAE3 support?

The GS1528-CTAE3 supports SMPTE 259M (270 Mb/s), SMPTE 344M (540 Mb/s), and SMPTE 292M (1.485 Gb/s) coaxial cable interface standards. It achieves compliance through dual selectable slew rates controlled by the SD/HD pin and meets required output return loss (≥15 dB), voltage swing (750–850 mV_p-p), and jitter (<25 ps_p-p at 270 Mb/s, <15 ps_p-p at 1.485 Gb/s) per specification.

How is output amplitude adjusted on the GS1528-CTAE3?

Output amplitude on the GS1528-CTAE3 is adjusted using an external resistor connected to the RSET pin. A 750 Ω ±1% resistor yields the nominal 800 mV_p-p output swing into 75Ω; values from 573 Ω to 1100 Ω tune swing from 1040 mV_p-p down to 600 mV_p-p. The resistor must be placed adjacent to the RSET pin with ground plane removed beneath to minimize parasitic capacitance.

What is the function of the SD/HD pin on the GS1528-CTAE3?

The SD/HD pin on the GS1528-CTAE3 is a logic-level input that selects output slew rate: driven HIGH to meet SMPTE 259M/344M rise/fall time requirements (~220 ps), or LOW to meet SMPTE 292M requirements (400–800 ps). This enables single-device support for both SD and HD video formats without changing external components or layout.

Does the GS1528-CTAE3 require external input biasing resistors?

No, the GS1528-CTAE3 does not require external input biasing resistors. Its differential SDI/SDI inputs are self-biased and designed for direct AC-coupling using a minimum 4.7 µF tantalum capacitor. This simplifies interface design and reduces BOM count compared to legacy drivers requiring discrete termination networks.

What package type and reel quantity does the GS1528-CTAE3 use?

The GS1528-CTAE3 uses an 8-pin SOIC package (JEDEC MS-012AC) in tape-and-reel format containing 250 units per reel. It is Pb-free and RoHS compliant, with gull-wing leads, 1.27 mm pitch, and specified coplanarity ≤0.004 inch - suitable for standard SMT assembly processes.

GS1528-CTAE3 Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Series:: HD-LINX® II

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Function:: Driver

Applications:: Professional Video

Standards:: SMPTE

Control Interface:: Serial

Voltage - Supply:: 3.135V ~ 3.465V

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 8-SOIC

GS1528-CTAE3 FAQ

1.How can I place an order for GS1528-CTAE3 through Aetrix?

Please submit a Request for Quotation (RFQ) for GS1528-CTAE3 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 GS1528-CTAE3 reliable?

The price and inventory of GS1528-CTAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GS1528-CTAE3 is usually 5 days.

3.What payment methods are accepted for GS1528-CTAE3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GS1528-CTAE3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for GS1528-CTAE3?

GS1528-CTAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your GS1528-CTAE3 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 GS1528-CTAE3?

For technical support, including GS1528-CTAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GS1528-CTAE3 requirements.

6.How does Aetrix verify that GS1528-CTAE3 is sourced from the original manufacturer or authorized distributors?

All GS1528-CTAE3 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 GS1528-CTAE3 meets industry standards.

7.What is the process for return or replacement of GS1528-CTAE3?

All GS1528-CTAE3 units undergo pre-shipment inspection (PSI). If there is an issue with GS1528-CTAE3, 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 GS1528-CTAE3 part is unused and in its original packaging.

Return procedure for GS1528-CTAE3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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