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Analog Devices Inc./Maxim Integrated DS1801E-02V/T&R
- Part No.:
- DS1801E-02V/T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Potentiometers
- Package:
- -
- Datasheet:
-
DS1801E-02V/T&R.pdf
- Description:
- DS1801 DUAL AUDIO TAPER POTENTIO
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
DS1801E-02V/T&R from Maxim Integrated is a dual-channel, digitally controlled, audio-taper potentiometer with 65-position logarithmic (1 dB/step) resistance profiling, 45 kΩ end-to-end resistance, zero-crossing detection, and 3-wire serial interface - designed for precision volume control in stereo audio systems.
For engineers reviewing the DS1801E-02V/T&R datasheet, DS1801E-02V/T&R pinout, DS1801E-02V/T&R application, or DS1801E-02V/T&R equivalent, key selection considerations include mute capability per channel, wiper position readback support, cascade daisy-chaining, industrial temperature range (-40°C to +85°C), and TSSOP-14 RoHS-compliant packaging.
Technical Context
The DS1801E-02V/T&R implements two independent 7-bit-controlled potentiometers (65 positions + mute) with logarithmic taper, where bit 6 controls mute for pot-0 and bit 14 for pot-1. Its 3-wire serial interface (RST/CLK/D) supports LSB-first 16-bit writes and optional readback via COUT feedback loop.
Zero-crossing detection is enabled by pulling ZCEN low, restricting wiper updates to signal zero crossings within 50 ms of RST high; if no crossing occurs, update proceeds regardless. The device features separate analog (AGND) and digital (GND) grounds, requiring connection at a single point.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 45 kΩ - sets maximum attenuation range and load matching for line-level audio signals. |
| Wiper Positions | 65 positions + mute (position 64) - enables precise 1 dB/step volume adjustment across -63 dB to mute (<-90 dB). |
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct integration with 3 V or 5 V microcontroller I/O without level shifting. |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade audio equipment deployed in harsh thermal environments. |
| Serial Clock Max Frequency | 10 MHz - allows fast wiper updates (≤1.6 µs per 16-bit write) suitable for real-time gain control. |
| Interchannel Matching | ±0.5 dB - ensures consistent left/right channel balance critical for stereo imaging fidelity. |
| THD @ 1 kHz | 0.002% - preserves audio signal integrity with negligible harmonic distortion during attenuation. |
Pinout & Package
DS1801E-02V/T&R is housed in a 14-pin TSSOP (173-mil body width, 0.65 mm pitch) package compliant with JEDEC MO-153, optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Digital Ground Reference | Return path for serial interface logic; must be tied to AGND at single point to minimize digital noise coupling. |
| VCC | Power Supply Input | Accepts 2.7–5.5 V; powers both digital control circuitry and analog resistor array. |
| COUT | Cascade Output | Drives D input of next DS1801 in daisy-chain; enables multi-device synchronization with ≤50 ns propagation delay. |
| RST | Serial Port Reset | Active-high enable for 3-wire interface; initiates data capture window and triggers zero-crossing timing window. |
| CLK | Serial Clock Input | Synchronizes data sampling on rising edge; supports up to 10 MHz for sub-microsecond wiper updates. |
| D | Serial Data Input | LSB-first 16-bit data stream: bits 0–7 for pot-0 (wiper/mute), bits 8–15 for pot-1 (wiper/mute). |
| ZCEN | Zero-Crossing Enable | Low = activate zero-crossing detection; high = bypass timing constraint and allow immediate wiper update. |
| AGND | Analog Ground Reference | Return for resistive divider terminals (H/L/W); isolation from digital ground reduces audible switching noise. |
| W0, W1 | Potentiometer Wiper Outputs | Variable voltage taps; each supports ±1 mA wiper current and connects to amplifier inputs or codec line drivers. |
| H0, H1 | Potentiometer High-End Terminals | Connect to signal source (e.g., DAC output); define upper voltage rail of each logarithmic divider. |
| L0, L1 | Potentiometer Low-End Terminals | Connect to AGND or reference bias; define lower rail and mute path (shorted to Lx when muted). |
Key Features
| Feature | Design Value |
|---|---|
| Logarithmic Audio Taper | 1 dB per step across 65 positions - matches human loudness perception for natural-sounding volume control. |
| Per-Channel Mute Control | Independent bit-6 (pot-0) and bit-14 (pot-1) activation - silences individual channels without altering wiper position state. |
| Zero-Crossing Detection | Hardware-enforced wiper update only at signal zero crossings (within 50 ms window) - eliminates audible click/pop artifacts. |
| Daisy-Chain Capability | COUT-to-D cascading with 16×N-bit serial frame - enables synchronized control of multiple DS1801E devices using one MCU GPIO set. |
| Separate Analog/Digital Grounds | Dedicated AGND and GND pins with mandatory single-point tie - prevents digital switching noise from modulating analog signal paths. |
Applications
| Professional Audio Mixer | Automotive Infotainment System |
|---|---|
|
Use Scenario: Dual-channel analog volume control for balanced left/right line outputs in a 1U rack-mount mixer. IC Role / Device Role / Timing Role: Digitally programmable audio taper potentiometer providing mute-capable, zero-crossing–synchronized attenuation for each channel. Use Value: Eliminates mechanical pot wear and manual calibration; enables recallable channel settings and remote firmware-based gain adjustment. |
Use Scenario: Front-panel volume knob replacement in head unit with MCU-managed UI and automatic fade/balance functions. IC Role / Device Role / Timing Role: Stereo audio taper potentiometer interfacing directly with 3.3 V automotive MCU via 3-wire serial bus. Use Value: Supports industrial temperature operation and ESD-hardened analog terminals for reliable in-vehicle deployment. |
| USB Audio Interface | Smart Speaker Audio Subsystem |
|
Use Scenario: Host-controlled headphone and speaker output level setting in class-compliant USB DAC with embedded ARM Cortex-M0. IC Role / Device Role / Timing Role: Dual 45 kΩ logarithmic potentiometer enabling simultaneous left/right attenuation with mute and readback capability. Use Value: Enables host-side volume mapping with 1 dB resolution and real-time wiper position verification for UI sync. |
Use Scenario: Multi-zone audio routing in voice-assistant speaker with separate tweeter/midrange level trimming. IC Role / Device Role / Timing Role: Precision analog gain control element supporting daisy-chained configuration for compact multi-pot layout. Use Value: Reduces BOM count vs. discrete solutions while maintaining THD <0.002% and interchannel isolation >100 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5204BRZ10 | Quad 10 kΩ linear-taper potentiometer; SPI interface; no zero-crossing detection or mute per channel. | Designed for general-purpose gain control, not audio-specific volume; lacks logarithmic taper and click-free update. | Select when linear scaling suffices and multi-channel count >2 is needed; avoid for stereo audio volume. |
| MCP41010-I/P | Single 10 kΩ linear-taper potentiometer; SPI interface; 257-step resolution; no mute or zero-crossing. | Requires two devices for stereo; no hardware-based noise suppression; limited to 5.5 V supply. | Choose for cost-sensitive non-audio applications where simplicity and wide availability outweigh audio fidelity needs. |
Compared with AD5204BRZ10 and MCP41010-I/P, the DS1801E-02V/T&R uniquely delivers matched dual-channel logarithmic taper, per-channel mute, zero-crossing–enabled silent updates, and industrial temperature rating - making it the only option qualified for high-fidelity, noise-critical stereo volume control.
Availability
DS1801E-02V/T&R is available at Aetrix Electronics and suitable for professional audio mixers, automotive infotainment systems, and USB DAC designs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant TSSOP packaging.
Supply support for DS1801E-02V/T&R 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) is a semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The DS1801E-02V/T&R belongs to Maxim's audio interface product line, engineered specifically for noise-immune, digitally programmable volume control in stereo audio systems operating across extended temperature ranges.
FAQ
What is the resistance value and taper type of the DS1801E-02V/T&R?
The DS1801E-02V/T&R features a 45 kΩ end-to-end resistance with logarithmic (audio) taper - delivering precisely 1 dB attenuation per wiper step across all 65 positions. This taper matches human auditory response, making DS1801E-02V/T&R ideal for high-fidelity volume control where linear pots would produce unnatural loudness progression.
Does the DS1801E-02V/T&R support reading back wiper positions?
Yes, the DS1801E-02V/T&R supports wiper position readback using its COUT pin in conjunction with an external feedback resistor (2–10 kΩ) tied to the D input. When RST is asserted and CLK cycles, the 16-bit shift register contents - including current wiper values and mute states - circulate back through COUT, allowing the host MCU to verify DS1801E-02V/T&R configuration.
How does zero-crossing detection work on the DS1801E-02V/T&R?
Zero-crossing detection on the DS1801E-02V/T&R activates when ZCEN is pulled low. It delays wiper movement until both Hx and Lx terminals reach equal potential, within a 50 ms window after RST goes high. If no zero crossing occurs, DS1801E-02V/T&R updates wipers unconditionally - ensuring deterministic behavior while eliminating audible pop/click in audio paths.
Can multiple DS1801E-02V/T&R devices be controlled from a single microcontroller?
Yes, DS1801E-02V/T&R supports daisy-chaining via its COUT output driving the D input of the next device. Each DS1801E-02V/T&R consumes 16 bits of the serial frame; for N devices, the controller sends 16×N bits. This enables synchronized stereo+subwoofer or multi-zone audio control using only three MCU GPIOs (RST, CLK, D).
What is the meaning of the "-02V" suffix in DS1801E-02V/T&R?
The "-02V" suffix in DS1801E-02V/T&R indicates the specific variant with 45 kΩ end-to-end resistance and industrial temperature range (-40°C to +85°C), packaged in 14-pin TSSOP. It distinguishes this version from PDIP (DS1801) and SOIC (DS1801S) variants, all sharing identical electrical functionality but differing in package and RoHS status.
DS1801E-02V/T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- -
- Configuration:
- -
- Number of Circuits:
- -
- Number of Taps:
- -
- Resistance (Ohms):
- -
- Interface:
- -
- Memory Type:
- -
- Voltage - Supply:
- -
- Features:
- -
- Tolerance:
- -
- Temperature Coefficient (Typ):
- -
- Mounting Type:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
- Operating Temperature:
- -
- Resistance - Wiper (Ohms) (Typ):
- -
DS1801E-02V/T&R FAQ
1.How can I place an order for DS1801E-02V/T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1801E-02V/T&R 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 DS1801E-02V/T&R reliable?
The price and inventory of DS1801E-02V/T&R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1801E-02V/T&R is usually 5 days.
3.What payment methods are accepted for DS1801E-02V/T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1801E-02V/T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1801E-02V/T&R?
DS1801E-02V/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1801E-02V/T&R 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 DS1801E-02V/T&R?
For technical support, including DS1801E-02V/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1801E-02V/T&R requirements.
6.How does Aetrix verify that DS1801E-02V/T&R is sourced from the original manufacturer or authorized distributors?
All DS1801E-02V/T&R 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 DS1801E-02V/T&R meets industry standards.
7.What is the process for return or replacement of DS1801E-02V/T&R?
All DS1801E-02V/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1801E-02V/T&R, 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 DS1801E-02V/T&R part is unused and in its original packaging.
Return procedure for DS1801E-02V/T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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