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

Semtech Corporation GS7032-CVME3

Name: GS7032-CVME3
Brand: Semtech Corporation
SKU: GS7032-CVME3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: GS7032-CVME3

Manufacturer:: Semtech Corporation

Category:: Video Processing

Package:: 44-TQFP

Datasheet:: GS7032-CVME3.pdf

Description:: IC VIDEO SERIALIZER 44TQFP

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Product details

Overview

GS7032-CVME3 from Gennum Corporation is a SMPTE 259M-C–compliant digital video serializer that converts 8-bit or 10-bit parallel video data into 270 Mb/s serial NRZI-encoded output. It integrates sync detection, SMPTE scrambling (X⁹+X⁴+1), 10× PLL clock multiplication, and dual isolated 75Ω cable drivers. Used in broadcast-grade video cameras and VTRs for reliable SD-SDI interface conversion.

For engineers reviewing the GS7032-CVME3 datasheet, pinout, applications, or equivalent options, key selection criteria include SMPTE 259M-C compliance, dual 75Ω SDO/SDO outputs, lock detect signaling, LBWC-adjustable PLL bandwidth (220 kHz to 1.7 MHz), and Pb-free 44-pin TQFP packaging for industrial video signal integrity.

Technical Context

The GS7032-CVME3 implements a fully integrated bipolar PLL with differential VCO (set by RVCO+/-), phase/frequency detector, charge pump, and divide-by-10 counter to generate precise 270 Mb/s serial timing from a parallel clock input. Its sync detector maps 8-bit/10-bit reserved words (000–003, 3FC–3FF) to ensure TRS-ID compatibility.

It features bypassable SMPTE scrambling and NRZ-to-NRZI encoding via BYPASS pin, configurable loop bandwidth control (LBWC grounded/floating/VCC), and intrinsic jitter of ≤0.08 UI at 270 Mb/s. The dual current-mode SDO/SDO outputs drive 75Ω coaxial cables without external transformers.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	270 Mb/s - matches SMPTE 259M-C standard for standard-definition serial digital interface (SD-SDI).
Input Compatibility	3.3V/5.0V CMOS/TTL - supports legacy and mixed-voltage video system interfaces without level shifters.
Output Drive	Dual 75Ω SDO/SDO - enables true/complement differential signaling over coaxial cable per SMPTE spec.
PLL Jitter	≤0.08 UI (6σ) - ensures robust eye opening and low bit error rate in long-cable broadcast environments.
Loop Bandwidth	220 kHz to 1.7 MHz (via LBWC) - allows optimization for low-jitter (VCC) or fast-lock (ground) operation.
Power Dissipation	550 mW typical at 5V - enables thermal management in dense video processing modules without forced cooling.
Operating Temp	0°C to +70°C - suitable for commercial broadcast equipment enclosures with passive airflow.

Pinout & Package

GS7032-CVME3 is housed in a 44-pin Thin Quad Flat Package (TQFP), RoHS-compliant and Pb-free, with 0.8 mm lead pitch and 10 mm × 10 mm body size. Power domains are segregated: VCC1/VEE1 for analog circuits, VCC2/VEE2 for logic, VCC3/VEE3 for parallel I/O.

Pin/Terminal	Circuit Role	Design Meaning
PD0–PD9	Parallel data inputs (LSB to MSB)	Accept 8-bit or 10-bit video data; PD0–PD9 map directly to SMPTE 259M-C data bus.
PCLKIN	Parallel clock input	Synchronizes latch capture; feeds 10× PLL multiplier to generate 270 MHz serial clock.
SDO / SDO	Dual serial data outputs	Current-mode, 75Ω-terminated true/complement outputs for SMPTE-compliant SD-SDI transmission.
LOCK	PLL lock status indicator	TTL-high when PLL locked; mutes SDO/SDO if unlocked - prevents invalid serial stream propagation.
LBWC	Loop bandwidth control	Selects PLL bandwidth: ground = 220 kHz (stable), floating = ~500 kHz (balanced), VCC = ~1.7 MHz (fast lock).
BYPASS	Scrambler/NRZI disable	High disables SMPTE scrambling and NRZ→NRZI conversion - used for test or non-standard protocols.
RSET	Output amplitude control	External resistor sets SDO/SDO swing (740–860 mV_p-p) to match 75Ω load and cable loss.
RVCO+ / RVCO−	VCO frequency setting	Differential resistor pair (374 Ω recommended) sets center frequency for 270 Mb/s operation.

Key Features

Feature	Design Value
SMPTE 259M-C Compliance	Fully implements standard's encoding, scrambling, sync word handling, and electrical specs - eliminates need for external protocol logic.
Isolated Dual Cable Driver	Two independent 75Ω current-mode outputs enable redundant or differential SD-SDI paths without external drivers or transformers.
No Loop Filter Components Required	Integrated charge pump and clamped loop filter voltage (1.8–3.4 V) reduce BOM count and layout sensitivity vs. discrete PLL designs.
Sync Detect Disable (SYNC DIS)	Pin 44 logic high disables sync word detection - enables use with non-SMPTE parallel video formats while retaining serialization function.
EDH Support with Companion ICs	Interoperates with GS9001/GS9021 for Error Detection and Handling - extends functionality to broadcast-quality monitoring and correction.

Applications

Professional Video Camera Interface	VTR Digital Output Stage
Use Scenario: Converting parallel 4:2:2 YUV video from image sensor pipeline to SD-SDI for real-time monitoring and recording. IC Role / Device Role / Timing Role: Parallel-to-serial serializer with SMPTE-compliant NRZI encoding, sync word insertion, and 270 Mb/s clock multiplication. Use Value: Enables direct integration of CMOS sensor outputs into broadcast infrastructure using single-chip, low-jitter serialization without FPGA overhead.	Use Scenario: Driving SD-SDI output from tape-based digital video recorder with embedded timecode and EDH support. IC Role / Device Role / Timing Role: Final-stage serializer with lock-detect–gated outputs and RSET-controlled amplitude for stable coaxial transmission. Use Value: Ensures SMPTE 259M-C waveform fidelity and jitter margin compliance over 300 m coaxial cable runs in studio environments.
SDI Signal Generator Output	Broadcast Test Equipment Interface
Use Scenario: Generating calibrated SMPTE-compliant test patterns (e.g., color bars, pulse signals) for field validation. IC Role / Device Role / Timing Role: Precision serializer with bypassable scrambler and LBWC-tunable PLL for repeatable jitter characterization. Use Value: Delivers deterministic, low-jitter serial streams essential for validating receiver eye diagrams and jitter tolerance.	Use Scenario: Integrating into portable SDI analyzers requiring compact, self-contained parallel-to-serial conversion with lock status feedback. IC Role / Device Role / Timing Role: Serializer with TTL-level LOCK output and dual SDO/SDO for simultaneous monitoring and loopback testing. Use Value: Provides real-time PLL lock confirmation and true/complement outputs for differential signal analysis without external splitters.

Professional Video Camera Interface

VTR Digital Output Stage

Use Scenario: Converting parallel 4:2:2 YUV video from image sensor pipeline to SD-SDI for real-time monitoring and recording.

IC Role / Device Role / Timing Role: Parallel-to-serial serializer with SMPTE-compliant NRZI encoding, sync word insertion, and 270 Mb/s clock multiplication.

Use Value: Enables direct integration of CMOS sensor outputs into broadcast infrastructure using single-chip, low-jitter serialization without FPGA overhead.

Use Scenario: Driving SD-SDI output from tape-based digital video recorder with embedded timecode and EDH support.

IC Role / Device Role / Timing Role: Final-stage serializer with lock-detect–gated outputs and RSET-controlled amplitude for stable coaxial transmission.

Use Value: Ensures SMPTE 259M-C waveform fidelity and jitter margin compliance over 300 m coaxial cable runs in studio environments.

SDI Signal Generator Output

Broadcast Test Equipment Interface

Use Scenario: Generating calibrated SMPTE-compliant test patterns (e.g., color bars, pulse signals) for field validation.

IC Role / Device Role / Timing Role: Precision serializer with bypassable scrambler and LBWC-tunable PLL for repeatable jitter characterization.

Use Value: Delivers deterministic, low-jitter serial streams essential for validating receiver eye diagrams and jitter tolerance.

Use Scenario: Integrating into portable SDI analyzers requiring compact, self-contained parallel-to-serial conversion with lock status feedback.

IC Role / Device Role / Timing Role: Serializer with TTL-level LOCK output and dual SDO/SDO for simultaneous monitoring and loopback testing.

Use Value: Provides real-time PLL lock confirmation and true/complement outputs for differential signal analysis without external splitters.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
GS7032-CVM	Same die, non-RoHS package - uses leaded solder finish; identical electrical specs and pinout.	Restricted to legacy industrial or non-EU markets where Pb-free compliance is not mandated.	Select GS7032-CVM only when RoHS exemption applies and supply chain requires leaded finish.
THS8200IPHP	TI 10-bit serializer with integrated reclocker; supports 270/360/540 Mb/s; requires external loop filter.	Broader multi-rate support but higher BOM count and layout complexity due to external PLL components.	Choose THS8200IPHP when multi-standard (HD-SDI capable) operation is required and design can accommodate external filtering.

Compared with GS7032-CVM and THS8200IPHP, the GS7032-CVME3 uniquely combines Pb-free compliance, zero-external-loop-filter simplicity, and dedicated SMPTE 259M-C optimization - making it optimal for cost-sensitive, RoHS-mandated SD-SDI camera and VTR designs where 270 Mb/s fixed-rate performance is sufficient.

Availability

GS7032-CVME3 is available at Aetrix Electronics and suitable for professional video camera interfaces, broadcast VTR outputs, and SDI signal generator applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for GS7032-CVME3 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 serial interface ICs for broadcast video, fiber optics, and communications before its acquisition by Semtech in 2012.

The GS7032-CVME3 belongs to Gennum's ProLinx™ family of video serializers, engineered specifically for SMPTE-compliant SD-SDI infrastructure - emphasizing low jitter, robust sync handling, and minimal external component count in broadcast equipment.

FAQ

What is the primary function of the GS7032-CVME3 in an SD-SDI system?

The GS7032-CVME3 serves as a dedicated SMPTE 259M-C–compliant parallel-to-serial converter, transforming 8-bit or 10-bit parallel digital video into a 270 Mb/s NRZI-encoded serial stream. It performs sync detection, SMPTE scrambling, 10× clock multiplication, and drives dual 75Ω coaxial outputs - all within a single chip. The GS7032-CVME3 eliminates need for external PLL filters or level translators in broadcast camera and VTR designs.

How does the LBWC pin affect PLL performance in the GS7032-CVME3?

The LBWC pin on the GS7032-CVME3 selects one of three PLL loop bandwidths: grounded (220 kHz, highest stability), floating (~500 kHz, balanced jitter/lock time), or tied to VCC (~1.7 MHz, fastest lock). This adjustment directly impacts jitter suppression and acquisition speed - critical when optimizing for long-cable transmission (low BW) or rapid source switching (high BW). The GS7032-CVME3's internal charge pump and clamped loop voltage simplify implementation versus discrete PLLs.

Can the GS7032-CVME3 be used with non-SMPTE parallel video formats?

Yes - the GS7032-CVME3 supports generic 8-bit or 10-bit parallel data serialization regardless of protocol. Its SYNC DIS pin (pin 44) disables sync word detection, and the BYPASS pin (pin 31) disables SMPTE scrambling and NRZ-to-NRZI encoding. This allows the GS7032-CVME3 to serialize proprietary or test patterns while retaining 270 Mb/s timing, dual 75Ω drive, and lock detection - making it adaptable beyond broadcast video.

What is the role of the RSET pin in the GS7032-CVME3?

The RSET pin on the GS7032-CVME3 sets the amplitude of the SDO and SDO serial outputs via an external resistor. Using the formula RSET = (1.154 × R_LOAD) / V_SDO, designers adjust output swing (740–860 mV_p-p) to compensate for PCB trace loss and maintain SMPTE 259M-C compliance over varying cable lengths. This calibration ensures consistent signal integrity without requiring post-driver amplifiers or attenuators in the GS7032-CVME3 signal path.

Is the GS7032-CVME3 pin-compatible with other Gennum serializers like the GS7031?

No - the GS7032-CVME3 is not pin-compatible with the GS7031. While both are SMPTE serializers, the GS7031 is a deserializer (not serializer), lacks dual SDO/SDO outputs, and uses different pin assignments for clock, data, and control functions. The GS7032-CVME3's 44-pin TQFP layout is specific to its serializer architecture, including dedicated RVCO+/−, LBWC, and isolated power domains. Interchangeability would require full PCB redesign - the GS7032-CVME3 must be selected and laid out as a standalone serializer solution.

GS7032-CVME3 Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Series:: -

Package/Case:: 44-TQFP

Packaging:: Tray

Product Status:: Obsolete

Function:: Serializer

Applications:: Professional Video

Standards:: SMPTE

Control Interface:: -

Voltage - Supply:: 4.75V ~ 5.25V

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 44-TQFP (10x10)

GS7032-CVME3 FAQ

1.How can I place an order for GS7032-CVME3 through Aetrix?

Please submit a Request for Quotation (RFQ) for GS7032-CVME3 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 GS7032-CVME3 reliable?

The price and inventory of GS7032-CVME3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GS7032-CVME3 is usually 5 days.

3.What payment methods are accepted for GS7032-CVME3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GS7032-CVME3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for GS7032-CVME3?

GS7032-CVME3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your GS7032-CVME3 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 GS7032-CVME3?

For technical support, including GS7032-CVME3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GS7032-CVME3 requirements.

6.How does Aetrix verify that GS7032-CVME3 is sourced from the original manufacturer or authorized distributors?

All GS7032-CVME3 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 GS7032-CVME3 meets industry standards.

7.What is the process for return or replacement of GS7032-CVME3?

All GS7032-CVME3 units undergo pre-shipment inspection (PSI). If there is an issue with GS7032-CVME3, 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 GS7032-CVME3 part is unused and in its original packaging.

Return procedure for GS7032-CVME3:

1.Submit a request within 90 days.

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

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