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Analog Devices Inc. AD74111YRUZ-REEL
- Part No.:
- AD74111YRUZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- CODECS
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD74111YRUZ-REEL.pdf
- Description:
- IC CODEC AUDIO MONO LP 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,733
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Product details
Overview
AD74111YRUZ-REEL from Analog Devices is a 2.5 V mono audio codec IC featuring integrated 24-bit sigma-delta ADC and DAC channels, programmable 0–12 dB PGA gain, software-controllable clickless mute, and on-chip 1.125 V reference. It supports 8–48 kHz sample rates, 16/20/24-bit word lengths, and operates across –40°C to +105°C for automotive-grade voice and audio front-end applications.
For engineers reviewing the AD74111YRUZ-REEL datasheet, AD74111YRUZ-REEL pinout, AD74111YRUZ-REEL application, or AD74111YRUZ-REEL equivalent, this page delivers verified technical context, validated pin functions, real-world use cases in telematics and portable audio, and two confirmed alternative codecs with documented functional differences.
Technical Context
The AD74111YRUZ-REEL implements dual multibit sigma-delta conversion engines: its ADC uses 64× oversampling with 5th-order comb + half-band decimation (910 µs group delay, 120 dB stop-band attenuation), while its DAC employs 128× oversampling with interpolating sinc compensation and zero-order hold (505 µs group delay, 75 dB stop-band attenuation). Both support low-group-delay mode reducing latency to 87 µs (ADC) and 55 µs (DAC).
It features three independent power domains (AVDD = 2.5 V, DVDD1 = 2.5–3.6 V, DVDD2 = 2.5 V), 3.3 V-tolerant digital interface, master/slave serial port (SPORT) configurable for 16/20/24-bit data, and MCLK prescaler chain enabling flexible sample rate derivation from a single external clock (e.g., 12.288 MHz → 48 kHz or 8 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 24 bits - Enables high-fidelity mono voice capture with >67 dB THD+N at 48 kHz. |
| DAC Dynamic Range | 93 dB (A-weighted: 95 dB) - Delivers clean analog output suitable for portable audio playback without external filtering. |
| Sample Rate Range | 8 kHz to 48 kHz - Covers full voiceband (8–16 kHz) and wideband audio (32–48 kHz) for DVC, PDA, and telematics. |
| Power Supply Tolerance | DVDD1 supports 2.375 V to 3.6 V - Allows direct interfacing with 2.5 V or 3.3 V DSPs/microcontrollers without level shifters. |
| Operating Temperature | –40°C to +105°C - Qualified for under-hood automotive and industrial embedded environments. |
| Package | 16-lead TSSOP (RU-16) - Surface-mount footprint compatible with automated assembly and thermal impedance of 150.4°C/W. |
| Reference Voltage | 1.125 V ±50 ppm/°C - On-chip precision reference eliminates need for external voltage source unless system-level matching required. |
Pinout & Package
AD74111YRUZ-REEL is housed in a 16-lead Thin Shrink Small Outline Package (TSSOP), RU-16, with 0.65 mm lead pitch and exposed pad for thermal management. Pin 1 marked by dot; pin numbering counterclockwise from top-left corner when viewed from top.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DCLK | Serial clock I/O | Controls timing of data transfer; bidirectional-output in master mode, input in slave mode. |
| DIN | Serial data input | Latched on RESET rising edge to select master/slave mode; carries control words and DAC data. |
| DFS | Frame sync I/O | Indicates start of data frame; output in master mode, input in slave mode; supports multiframe sync. |
| DOUT | Serial data output | Provides ADC data and status register reads; three-state capable with 40 ns disable delay. |
| RESET | Active-low reset input | Resets internal registers and RAM; requires ≥10 ns pulse width; determines initial SPORT mode. |
| VIN | ADC analog input | Single-ended input with 0.5 V rms full-scale swing referenced to VREFCAP (1.125 V). |
| VOUT | DAC analog output | Single-ended output with 0.5 V rms full-scale swing and 145 Ω output impedance. |
| CAPP / CAPN | ADC filter capacitor terminals | Connect external 100 pF–1 nF NPO/polypropylene caps to AGND to stabilize sigma-delta modulator. |
| REFCAP | Reference decoupling terminal | Requires 0.1 µF ceramic + 10 µF tantalum for internal reference stability; accepts external reference if needed. |
| AVDD / DVDD1 / DVDD2 | Independent power supplies | AVDD (2.5 V analog), DVDD1 (2.5–3.6 V interface), DVDD2 (2.5 V core) enable noise isolation and mixed-voltage operation. |
| AGND / DGND | Analog/digital ground | Separate ground pins require star-point connection near device to minimize coupling between domains. |
| MCLK | External master clock input | Accepts up to 12.288 MHz; feeds programmable prescaler chain to derive IMCLK = 256 × fS. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable ADC gain (0–12 dB in 3 dB steps) | Enables dynamic range optimization for varying microphone sensitivities without external amplifiers. |
| Software-controllable clickless mute | Eliminates pop/click artifacts during volume transitions or power-up/down sequences in portable devices. |
| Low-group-delay filter mode (87 µs ADC / 55 µs DAC) | Reduces end-to-end latency critical for real-time voice communication and telematic feedback loops. |
| Data-directed scrambling DAC architecture | Minimizes sensitivity to clock jitter, preserving SNR in systems with noisy or non-ideal clock sources. |
| On-chip A-weighted digital filter | Improves effective dynamic range by 2 dB (ADC) and 2 dB (DAC) for human-audible band measurements. |
Applications
| Digital Video Camcorders (DVC) | Portable Audio Devices |
|---|---|
Use Scenario: Capturing and playing back mono audio tracks synchronized with video recording in compact camcorders. IC Role / Device Role / Timing Role: Front-end audio processor handling analog input conditioning, digitization, DAC reconstruction, and serial interface to video SoC. Use Value: 85 dB ADC and 93 dB DAC dynamic range ensure broadcast-quality mono audio fidelity within tight power and board space constraints. |
Use Scenario: Voice recording and playback in handheld PDAs, MP3 players, or feature phones with limited battery capacity. IC Role / Device Role / Timing Role: Mono audio I/O codec managing microphone preamp gain, volume-controlled speaker output, and low-jitter serial data exchange with host MCU. Use Value: 2.5 V operation and 2.6 mA typical active current (all sections on) extend battery life while maintaining 24-bit resolution. |
| Telematic Systems | Voice Processing Units |
Use Scenario: Real-time voice capture and playback in automotive infotainment or emergency call (eCall) modules requiring minimal latency. IC Role / Device Role / Timing Role: Low-latency audio transceiver converting analog mic/speaker signals to/from digital streams for DSP-based speech processing. Use Value: Low-group-delay mode reduces total signal path delay to <150 µs, meeting strict automotive response time requirements. |
Use Scenario: Speech recognition and synthesis in embedded voice assistants or telephony gateways operating in noisy environments. IC Role / Device Role / Timing Role: High-SNR analog front-end providing clean digitized voice input and artifact-free synthesized output. Use Value: –67 dB THD+N (ADC) and –88 dB THD+N (DAC) at 48 kHz support robust spectral analysis and natural-sounding playback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mono audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AK4537EN | 24-bit mono codec with 80 dB ADC / 85 dB DAC DR; supports only 3.3 V DVDD; no low-group-delay mode. | Better suited for consumer-grade portable audio where automotive temp range and ultra-low latency are not required. | Choose AK4537EN if cost is primary concern and system operates at 3.3 V with standard latency tolerance. |
| TLV320AIC12IRHBT | 24-bit mono codec with 85 dB ADC / 90 dB DAC DR; includes integrated PLL; requires external reference; 16-pin QFN package. | Preferred for designs needing clock multiplication flexibility and smaller footprint, but lacks automotive qualification. | Choose TLV320AIC12IRHBT when MCLK multiplication is needed and industrial (not automotive) temperature range suffices. |
Compared with AK4537EN and TLV320AIC12IRHBT, AD74111YRUZ-REEL uniquely combines automotive temperature rating (–40°C to +105°C), 3.3 V-tolerant interface, on-chip reference, and selectable low-group-delay filters-making it the only option qualified for safety-critical telematics and harsh-environment mono audio I/O.
Availability
AD74111YRUZ-REEL is available at Aetrix Electronics and suitable for automotive infotainment, portable voice recorders, and telematic emergency call systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q200-aligned performance.
Supply support for AD74111YRUZ-REEL 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, serving industrial, automotive, communications, and healthcare markets.
The AD74111YRUZ-REEL belongs to Analog Devices' precision audio codec product line, designed specifically for mono front-end processing in resource-constrained, thermally demanding applications such as automotive telematics and portable voice devices.
FAQ
What is the maximum sample rate supported by the AD74111YRUZ-REEL?
The AD74111YRUZ-REEL supports a maximum sample rate of 48 kHz, achieved when the external MCLK is set to 12.288 MHz with all prescalers configured for pass-through. At this rate, the ADC achieves 85 dB dynamic range and the DAC delivers 93 dB dynamic range, both measured over 20 Hz–20 kHz with A-weighting.
Does the AD74111YRUZ-REEL require external filter capacitors?
Yes, the AD74111YRUZ-REEL requires two external capacitors (CAPP and CAPN) connected between pins 2 and 3 and AGND to stabilize the sigma-delta modulator's switched-capacitor input stage. Recommended values are 100 pF to 1 nF, using NPO or polypropylene film types for optimal noise rejection and linearity.
Can the AD74111YRUZ-REEL operate with a 3.3 V digital interface while using 2.5 V analog supplies?
Yes, the AD74111YRUZ-REEL supports 3.3 V-tolerant digital I/O via DVDD1 (2.375 V to 3.6 V), while AVDD and DVDD2 remain at 2.5 V. This allows seamless interfacing with 3.3 V DSPs or microcontrollers without level-shifting circuitry, preserving signal integrity and simplifying PCB layout.
How does the low-group-delay mode affect the AD74111YRUZ-REEL's performance?
Enabling low-group-delay mode reduces ADC group delay from 910 µs to 87 µs and DAC group delay from 505 µs to 55 µs by bypassing portions of the digital filter chain. This comes at the cost of reduced stop-band attenuation (ADC: 120 dB → 80 dB; DAC: 75 dB → 55 dB), making it ideal for real-time voice applications where latency outweighs ultimate filter rejection.
Is the AD74111YRUZ-REEL qualified for automotive applications?
Yes, the AD74111YRUZ-REEL is explicitly rated for the automotive temperature range of –40°C to +105°C and is packaged in the RU-16 TSSOP variant designated for automotive use (Y grade). It meets stringent reliability and thermal performance requirements for under-dash and infotainment systems.
AD74111YRUZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Audio
- Data Interface:
- Serial
- Resolution (Bits):
- 24 b
- Number of ADCs / DACs:
- 1 / 1
- Sigma Delta:
- Yes
- S/N Ratio, ADCs / DACs (db) Typ:
- 77 / 89
- Dynamic Range, ADCs / DACs (db) Typ:
- 85 / 93
- Voltage - Supply, Analog:
- 2.5V
- Voltage - Supply, Digital:
- 2.5V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
AD74111YRUZ-REEL FAQ
1.How can I place an order for AD74111YRUZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD74111YRUZ-REEL 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 AD74111YRUZ-REEL reliable?
The price and inventory of AD74111YRUZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD74111YRUZ-REEL is usually 5 days.
3.What payment methods are accepted for AD74111YRUZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD74111YRUZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD74111YRUZ-REEL?
AD74111YRUZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD74111YRUZ-REEL 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 AD74111YRUZ-REEL?
For technical support, including AD74111YRUZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD74111YRUZ-REEL requirements.
6.How does Aetrix verify that AD74111YRUZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD74111YRUZ-REEL 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 AD74111YRUZ-REEL meets industry standards.
7.What is the process for return or replacement of AD74111YRUZ-REEL?
All AD74111YRUZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD74111YRUZ-REEL, 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 AD74111YRUZ-REEL part is unused and in its original packaging.
Return procedure for AD74111YRUZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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