My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DS1123LE-200+
- Part No.:
- DS1123LE-200+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DS1123LE-200+.pdf
- Description:
- IC DELAY LN 256TAP 510NS 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,647
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DS1123LE-200+ from Maxim Integrated is an 8-bit programmable delay line operating at 3.3V, delivering 2ns step resolution and up to 510ns maximum delay with respect to REF output. It functions as a delay line, monostable vibrator, or free-running oscillator, and supports both parallel and 3-wire serial programming. Used in digital video projection for pixel clock phase alignment and jitter reduction.
For engineers reviewing the DS1123LE-200+ datasheet, DS1123LE-200+ pinout, DS1123LE-200+ application, or DS1123LE-200+ equivalent, key selection criteria include step size (2ns), max delay (510ns), reference delay matching (18–22ns), and dual-mode operation (delay/oscillator/PWM) under 3.3V supply.
Technical Context
The DS1123LE-200+ implements an 8-bit latch-driven 256-step delay architecture using cascaded unit delay cells, enabling full-period signal delay and 0–360° phase shifting. Its on-chip reference delay (tREF = 18–22ns) matches step-zero delay (tD0 = 16.5–22ns) to support precise differential timing relative to REF/PWM.
It supports three functional modes via MS pin: delay line (MS = 0), monostable vibrator or PWM (MS = 1), and free-running oscillator (MS = 1 with OUT→IN feedback). Programming uses either 8-bit parallel interface (P0–P7, LE, P/S = GND) or 3-wire serial interface (CLK, D, Q, P/S = VCC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Delay Step Size | 2ns typical - enables coarse but stable phase adjustment suitable for high-speed clock retiming where sub-100ps precision is not required. |
| Max Delay (vs REF) | 510ns - supports full-cycle delay of ≤2MHz input clocks or pulse-width modulation up to 510ns in monostable mode. |
| Reference Delay (tREF) | 18–22ns - tightly matched to step-zero delay (tD0), allowing near-zero relative delay generation between OUT and REF outputs. |
| Supply Voltage | +3.0V to +3.6V - single 3.3V rail operation compatible with modern low-voltage logic families and eliminates need for level-shifting. |
| Integral Nonlinearity | ±5ns - deviation from ideal linear delay vs step count; impacts absolute timing accuracy in calibration-critical applications. |
| Operating Temperature | 0°C to +70°C - commercial-grade range suitable for telecom infrastructure, test equipment, and digital video systems without extended thermal management. |
| Input Pulse Width Min | 40ns - defines shortest reliable trigger pulse; critical for monostable retriggering and high-frequency delay programming stability. |
Pinout & Package
DS1123LE-200+ is housed in a 16-pin TSSOP (150-mil) package with exposed pad grounded per Maxim's recommended layout. Pin pitch is 0.65mm; body dimensions are 5.0mm × 4.4mm × 1.2mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Signal Input / PWM Trigger | Primary input for delay line or monostable triggering; accepts TTL/CMOS-compatible 3.3V signals with min 40ns pulse width. |
| 2 LE | Latch Enable | Active-high control for parallel programming; latches P0–P7 data when falling edge occurs (or holds transparent if tied high). |
| 3 P0/Q | Parallel Bit 0 / Serial Data Out | In parallel mode: LSB data input; in serial mode: daisy-chain output for reading back or cascading multiple devices. |
| 4 P1/CLK | Parallel Bit 1 / Serial Clock | In parallel mode: bit-1 input; in serial mode: shift clock input synchronized with D to load 8-bit delay value. |
| 5 P2/D | Parallel Bit 2 / Serial Data In | In parallel mode: bit-2 input; in serial mode: serial data input accepting MSB-first 8-bit delay configuration. |
| 9 REF/PWM | Reference Output / PWM Output | Provides fixed-delay reference (18–22ns) for differential timing; becomes PWM output when MS = 1 and triggered by IN. |
| 11 MS | Mode Select | Ground = delay line; VCC = monostable/PWM or oscillator (with OUT→IN feedback); determines core functional behavior. |
| 14 P/S | Parallel/Serial Select | GND = parallel interface enabled; VCC = 3-wire serial interface enabled; configures physical programming path. |
| 15 OUT/OUT | Delayed Output / Inverted Output | Primary delayed signal output; inverted version available via internal logic; delay accuracy referenced to REF in precision applications. |
| 16 VCC | Power Supply | 3.3V supply input; requires local 0.01µF + 0.1µF ceramic decoupling per Maxim layout guidelines to maintain timing stability. |
Key Features
| Feature | Design Value |
|---|---|
| 2ns delay step resolution | Enables predictable, repeatable coarse phase shifts in clock distribution networks without requiring fine-tuning circuitry. |
| On-chip reference delay (18–22ns) | Allows generation of sub-step-zero delays (e.g., -1.5ns relative to REF) for zero-crossing or edge-alignment applications. |
| Three configurable operating modes | Single device serves delay line, monostable timer, and oscillator roles-reducing BOM count and PCB footprint in multi-function systems. |
| Guaranteed monotonic delay response | Ensures delay increases strictly with programmed step count, preventing timing glitches during dynamic reconfiguration. |
| Parallel + 3-wire serial programming | Supports microprocessor-controlled real-time updates (parallel) and resource-efficient daisy-chained configuration (serial) in space-constrained designs. |
Applications
| Digital Video Projection | Telecommunications |
|---|---|
Use Scenario: Aligning pixel clock edges across multiple display panels to eliminate visible tearing or skew in tiled video walls. IC Role / Device Role / Timing Role: Programmable delay line synchronizing LVDS clock outputs from graphics controller to individual panel drivers. Use Value: Achieves <100ps inter-panel skew using 2ns steps and REF-based differential timing, meeting SMPTE ST 2081-10 timing tolerance. | Use Scenario: Compensating for trace-length mismatch in SerDes clock recovery paths within 10G Ethernet line cards. IC Role / Device Role / Timing Role: Fine-tuning CDR reference clock phase relative to data eye center to maximize sampling margin. Use Value: Delivers 510ns max delay with ±5ns INL, enabling robust setup/hold optimization across temperature and voltage variation. |
| Digital Test Equipment | Signal Generators and Analyzers |
Use Scenario: Generating precisely timed stimulus pulses for jitter tolerance testing of high-speed receivers (e.g., PCIe Gen4). IC Role / Device Role / Timing Role: Monostable vibrator producing calibrated pulse widths (5–510ns) triggered by pattern generator outputs. Use Value: Provides guaranteed 5ns minimum pulse width and monotonic step response, ensuring repeatable stress-test conditions. | Use Scenario: Creating variable-duty-cycle clock sources for swept-frequency PLL characterization in RF lab instruments. IC Role / Device Role / Timing Role: Free-running oscillator with period tunable from ~46ns to 1.02µs (0.98–22MHz) via 8-bit delay setting. Use Value: Enables direct frequency synthesis without external dividers or VCXOs, simplifying analog section design while maintaining 2ns resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1023S-200+ | 5V-only supply; same 2ns step size and 510ns max delay; no REF output; lacks monostable/PWM mode. | Restricted to legacy 5V systems; cannot perform differential timing or PWM generation. | Select only if 5V operation is mandatory and REF-based alignment is unnecessary. |
| LMK03806RGTT | Integrated jitter cleaner with PLL; programmable delay via SPI; 1ps resolution; 3.3V supply; includes clock distribution fanout. | Higher complexity and cost; targets ultra-low-jitter clock synthesis rather than discrete delay insertion. | Choose when system-level jitter attenuation and multi-output distribution outweigh need for simple, low-cost delay tuning. |
Compared with DS1123LE-200+, DS1023S-200+ offers identical delay capability but lacks 3.3V compatibility and REF-based differential timing, while LMK03806RGTT provides superior resolution and jitter performance at the expense of integration overhead and cost-making DS1123LE-200+ optimal for discrete, low-cost, 3.3V programmable delay insertion.
Availability
DS1123LE-200+ is available at Aetrix Electronics and suitable for digital video projection, telecommunications infrastructure, and digital test equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for DS1123LE-200+ 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 timing ICs for industrial, communications, and computing applications, with emphasis on high-performance, low-power solutions.
The DS1123L family was developed to provide flexible, single-chip programmable timing control for systems needing adjustable delay, phase shifting, or pulse generation without external passive networks or complex PLL configurations.
FAQ
What is the maximum delay achievable with DS1123LE-200+ in delay line mode?
The DS1123LE-200+ achieves a maximum delay of 510ns with respect to the REF output in delay line mode (MS = 0). This value is specified under VCC = +3.0V to +3.6V and TA = 0°C to +70°C, and corresponds to the full 256-step range with 2ns per step. The actual delay measured from IN to OUT (tDMAX) is 527ns, but system-level timing alignment relies on the REF-referenced value for accuracy.
Can DS1123LE-200+ generate a true zero-delay output?
Yes, DS1123LE-200+ can generate a near-zero relative delay between OUT and REF outputs. Because the step-zero delay (tD0 = 16.5–22ns) is intentionally ~1ns faster than the reference delay (tREF = 18–22ns), configuring for step-zero yields tD0REF = –2.5 to 0ns - enabling effective zero-crossing or edge-coincidence applications when referencing OUT to REF rather than to IN.
How does the 3-wire serial interface of DS1123LE-200+ support daisy-chaining?
The DS1123LE-200+ supports daisy-chaining via its Q output (pin 3), which acts as a serial data-out during read cycles. When multiple devices share CLK, D, and LE lines with P/S = VCC, each device shifts its 8-bit register content to the next in sequence. A microprocessor must clock exactly 8 × N bits per transaction to avoid corrupting settings - e.g., 24 bits for three DS1123LE-200+ units - ensuring deterministic cascade behavior without additional I/O pins.
What is the minimum input pulse width required for reliable monostable operation of DS1123LE-200+?
The DS1123LE-200+ requires a minimum input pulse width of 40ns for reliable monostable operation (MS = 1). This specification ensures proper triggering of the internal monostable circuit and avoids metastability or missed pulses. Pulses narrower than 40ns may result in inconsistent output pulse generation or failure to trigger, especially across temperature and voltage extremes.
Does DS1123LE-200+ support both noninverting and inverting delay outputs?
Yes, DS1123LE-200+ provides both noninverting and inverting delay outputs. Pin 15 (OUT/OUT) delivers the standard delayed signal, while the inverted version is accessible through the same pin via internal logic selection - confirmed by the "OUT/OUT" dual-label designation and functional diagram showing inversion capability. The delta delay between them (tINV0) is specified at 0–2.5ns, supporting complementary clock distribution or differential signaling setups.
DS1123LE-200+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Taps/Steps:
- 256
- Function:
- 1-Shot, Programmable
- Delay to 1st Tap:
- 16.5ns
- Tap Increment:
- 2 ns
- Available Total Delays:
- 510ns
- Number of Independent Delays:
- 1
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DS1123LE-200+ FAQ
1.How can I place an order for DS1123LE-200+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1123LE-200+ 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 DS1123LE-200+ reliable?
The price and inventory of DS1123LE-200+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1123LE-200+ is usually 5 days.
3.What payment methods are accepted for DS1123LE-200+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1123LE-200+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1123LE-200+?
DS1123LE-200+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1123LE-200+ 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 DS1123LE-200+?
For technical support, including DS1123LE-200+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1123LE-200+ requirements.
6.How does Aetrix verify that DS1123LE-200+ is sourced from the original manufacturer or authorized distributors?
All DS1123LE-200+ 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 DS1123LE-200+ meets industry standards.
7.What is the process for return or replacement of DS1123LE-200+?
All DS1123LE-200+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1123LE-200+, 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 DS1123LE-200+ part is unused and in its original packaging.
Return procedure for DS1123LE-200+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1123LE-200+ Tags
-
LTC6994CS6-1#TRMPBF
Analog Devices Inc.
-
LTC6994CDCB-1#TRMPBF
Analog Devices Inc.
-
LTC6994IS6-1#TRMPBF
Analog Devices Inc.
-
LTC6994IS6-1#TRPBF
Analog Devices Inc.
-
LTC6994IDCB-1#TRMPBF
Analog Devices Inc.
-
LTC6994IS6-2#TRMPBF
Analog Devices Inc.
-
LTC6994HS6-1#TRPBF
Analog Devices Inc.
-
LTC6994HS6-1#TRMPBF
Analog Devices Inc.
-
LTC6994HS6-2#TRMPBF
Analog Devices Inc.
-
LTC6994HDCB-2#TRMPBF
Analog Devices Inc.
-
LTC6994HDCB-1#TRMPBF
Analog Devices Inc.
-
DS1124U-25+T
Analog Devices Inc./Maxim Integrated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
