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Analog Devices Inc./Maxim Integrated MAX3693ECJ
- Part No.:
- MAX3693ECJ
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Serializers, Deserializers
- Package:
- 32-LQFP
- Datasheet:
-
MAX3693ECJ.pdf
- Description:
- IC SERIALIZR 622MBPS LVDS 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,671
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Product details
Overview
The MAX3693ECJ from Maxim Integrated is a 4:1 parallel-to-serial serializer IC designed for SDH/SONET and ATM transmission systems. It converts 4-bit-wide 155Mbps parallel data into 622Mbps serial output using an integrated PLL, accepts LVDS parallel clock/data inputs, delivers differential 3.3V PECL serial output, and operates across -40°C to +85°C in a 32-pin TQFP package.
For engineers reviewing the MAX3693ECJ datasheet, MAX3693ECJ pinout, MAX3693ECJ application, or MAX3693ECJ equivalent, key selection criteria include its 622Mbps serial rate, LVDS-to-PECL signal conversion capability, support for four reference clock frequencies (155.52/77.76/51.84/38.88MHz), and guaranteed operation over industrial temperature range.
Technical Context
The MAX3693ECJ integrates a phase/frequency detector, loop filter/amplifier, voltage-controlled oscillator, and prescaler to synthesize a precise 622.08MHz internal serial clock from one of four LVDS reference inputs. Its 4-bit parallel input register latches data on the rising edge of PCLKI, while the PCLKO outputs (622MHz ÷ 4 = 155.52MHz) provide timing for overhead management circuitry.
It employs IEEE 1596.3-compliant LVDS I/O with 100Ω internal differential termination for all parallel inputs and outputs, and drives PECL serial outputs (SD±) requiring 50Ω DC termination to (VCC − 2V). The CKSET pin selects reference clock frequency via voltage or resistor programming, enabling flexible system-level clock architecture integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Serial Data Rate | 622.08 Mbps - matches OC-12/STM-4 line rate for SDH/SONET compliance |
| Parallel Input Width | 4-bit wide at 155.52 Mbps - enables direct interface with ATM/SONET framer devices |
| Reference Clock Inputs | 155.52 / 77.76 / 51.84 / 38.88 MHz LVDS - supports multiple SONET/SDH hierarchy levels |
| Supply Voltage | +3.3 V ±10% - single-rail operation compatible with modern digital logic families |
| Power Dissipation | 215 mW typical - enables thermal design in dense telecom line cards without forced cooling |
| Output Interface | Differential 3.3V PECL (SD±) - provides robust, high-speed transmission over 50Ω controlled-impedance traces |
| Input Interface | LVDS (PCLKI±, PD0±–PD3±, RCLK±) - ensures noise-immune, low-power parallel data capture |
Pinout & Package
MAX3693ECJ is housed in a 32-pin Thin Quad Flat Package (TQFP) with exposed pad, optimized for high-frequency signal integrity and thermal performance in telecom line-card applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PD0+ to PD3+, PD0− to PD3− | LVDS parallel data inputs (4-bit) | Accept 155Mbps parallel data; internally terminated at 100Ω differential; clocked on PCLKI rising edge |
| PCLKI+, PCLKI− | LVDS parallel clock input | Synchronizes parallel data capture; defines setup/hold window relative to PCLKO |
| RCLK+, RCLK− | LVDS reference clock input | Drives PLL; selects one of four standard SONET/SDH reference frequencies via CKSET |
| PCLKO+, PCLKO− | LVDS parallel clock output | Provides 155.52MHz timing for overhead management; requires external 100Ω differential termination |
| SD+, SD− | PECL serial data output | Delivers 622Mbps serialized stream; requires 50Ω termination to (VCC − 2V) or Thevenin equivalent |
| CKSET | Reference clock rate programming | Voltage/resistor-selectable: VCC=155.52MHz, open=77.76MHz, 20kΩ-to-GND=51.84MHz, GND=38.88MHz |
| FIL+, FIL− | PLL loop filter inputs | Connect external RC network to set PLL bandwidth and jitter performance per application requirements |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PLL clock synthesis | Eliminates need for external 622MHz clock source; reduces BOM count and board area in OC-12 line cards |
| LVDS parallel I/O with internal 100Ω termination | Removes requirement for external termination resistors on data/clock inputs, simplifying layout and improving signal fidelity |
| Programmable reference clock selection | Enables single hardware design to support multiple SONET/SDH rates (OC-3/OC-12/OC-48/OC-192) via CKSET configuration |
| PECL serial output with jitter specification | Delivers 11psRMS random jitter and 32.6psPk-Pk jitter - meets GR-253-CORE OC-12 jitter compliance limits |
| Industrial temperature range | Guaranteed operation from −40°C to +85°C - suitable for uncontrolled telecom central office and outdoor cabinet environments |
Applications
| 622Mbps SDH/SONET Transmission Systems | 622Mbps ATM/SONET Access Nodes |
|---|---|
|
Use Scenario: Line-side interface in OC-12 add/drop multiplexers handling STM-4 aggregate traffic. IC Role / Device Role / Timing Role: Serializer converting framer-generated 4×155Mbps parallel data into 622Mbps serial line signal with embedded timing. Use Value: Enables direct connection to optical transceivers without external clock multiplication, reducing latency and jitter accumulation. |
Use Scenario: Aggregation node in metro access networks consolidating multiple ATM PVCs onto a single OC-12 link. IC Role / Device Role / Timing Role: Parallel-to-serial converter synchronizing to incoming framer clock and generating compliant SONET payload envelope. Use Value: Supports deterministic timing alignment between ATM cell boundaries and SONET STS-12 frames via PCLKO synchronization. |
| Add/Drop Multiplexers | Digital Cross Connects |
|
Use Scenario: Channelized OC-12 ADM performing tributary insertion/extraction in legacy TDM transport networks. IC Role / Device Role / Timing Role: Serializer providing line-rate serial output aligned to network master clock via RCLK input. Use Value: Maintains traceability of timing through multiple network elements by locking PLL to Stratum 3E reference clock. |
Use Scenario: High-density DCS shelf managing hundreds of DS3/STS-1 cross-connections with OC-12 uplinks. IC Role / Device Role / Timing Role: Serial interface IC converting backplane parallel bus data into standardized OC-12 line signal. Use Value: Reduces interconnect complexity by replacing discrete clock multipliers, FIFOs, and level translators with single-chip solution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX3694ECJ | Higher-speed 2.488Gbps (OC-48) serializer with same 32-pin TQFP package and LVDS/PECL I/O architecture | Targets OC-48/STM-16 systems; requires higher-frequency reference clocks (622.08/311.04/207.36/155.52MHz) | Select when upgrading to OC-48 infrastructure; pin-compatible but not functionally interchangeable due to different PLL ranges |
| ICS8430AYI | 622Mbps serializer with LVPECL I/O, no integrated PLL; requires external 622MHz clock source | Lacks clock synthesis; suited for systems with existing high-frequency clock distribution infrastructure | Choose where board space allows external clock generator and lower power consumption is prioritized over integration |
Compared with MAX3693ECJ, MAX3694ECJ offers higher data rate but mandates revalidation of clock tree and layout; ICS8430AYI reduces jitter sensitivity by eliminating PLL but increases system component count and routing complexity.
Availability
MAX3693ECJ is available at Aetrix Electronics and suitable for 622Mbps SDH/SONET transmission systems, ATM/SONET access nodes, and digital cross-connect equipment requiring stable component supply across extended temperature conditions.
Supply support for MAX3693ECJ 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and high-speed communication ICs for demanding industrial, telecom, and computing applications.
The MAX3693ECJ belongs to Maxim's high-speed serializer product line, engineered specifically for SDH/SONET OC-12 and ATM physical layer interfaces with integrated clock synthesis and robust LVDS/PECL signaling.
FAQ
What reference clock frequencies does the MAX3693ECJ support?
The MAX3693ECJ supports four LVDS reference clock frequencies: 155.52MHz, 77.76MHz, 51.84MHz, and 38.88MHz. Selection is controlled by the CKSET pin voltage or external resistor value. Each frequency corresponds to a specific SONET/SDH hierarchy level, and the internal PLL locks to the selected reference to generate the precise 622.08MHz serial clock required by the MAX3693ECJ.
How is the MAX3693ECJ's PECL output terminated?
The MAX3693ECJ's SD+ and SD− PECL outputs require 50Ω DC termination to (VCC − 2V), typically implemented using two 130Ω resistors to VCC and two 82Ω resistors to ground. An alternative Thevenin-equivalent termination may be used if the (VCC − 2V) rail is unavailable. Proper termination is critical for signal integrity and jitter performance in the MAX3693ECJ.
Does the MAX3693ECJ require external termination for its LVDS inputs?
No, the MAX3693ECJ features internally terminated 100Ω differential input resistance on all LVDS inputs - including PCLKI±, RCLK±, and PD0± through PD3±. This eliminates the need for external termination resistors, simplifying PCB layout and reducing component count in designs using the MAX3693ECJ.
What is the function of the PCLKO outputs on the MAX3693ECJ?
The PCLKO+ and PCLKO− outputs on the MAX3693ECJ deliver a 155.52MHz LVDS clock derived from the internal 622.08MHz serial clock divided by four. This signal is intended to clock overhead management circuitry and must be externally terminated with 100Ω differential resistance. Its timing relationship to PCLKI defines the valid data capture window in the MAX3693ECJ.
What is the operating temperature range of the MAX3693ECJ?
The MAX3693ECJ is specified for operation from −40°C to +85°C, qualifying it for industrial and telecom infrastructure applications including central office equipment, remote cabinets, and outdoor base stations. This extended temperature range is guaranteed across all electrical specifications in the MAX3693ECJ datasheet.
MAX3693ECJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-LQFP
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Serializer
- Data Rate:
- 622Mbps
- Input Type:
- LVDS
- Output Type:
- PECL
- Number of Inputs:
- 4
- Number of Outputs:
- 1
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-LQFP (7x7)
MAX3693ECJ FAQ
1.How can I place an order for MAX3693ECJ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3693ECJ 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 MAX3693ECJ reliable?
The price and inventory of MAX3693ECJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3693ECJ is usually 5 days.
3.What payment methods are accepted for MAX3693ECJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3693ECJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3693ECJ?
MAX3693ECJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3693ECJ 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 MAX3693ECJ?
For technical support, including MAX3693ECJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3693ECJ requirements.
6.How does Aetrix verify that MAX3693ECJ is sourced from the original manufacturer or authorized distributors?
All MAX3693ECJ 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 MAX3693ECJ meets industry standards.
7.What is the process for return or replacement of MAX3693ECJ?
All MAX3693ECJ units undergo pre-shipment inspection (PSI). If there is an issue with MAX3693ECJ, 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 MAX3693ECJ part is unused and in its original packaging.
Return procedure for MAX3693ECJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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