My Inquiry
My Account
Analog Devices Inc. AD74111YRU
- Part No.:
- AD74111YRU
- Manufacturer:
- Analog Devices Inc.
- Category:
- CODECS
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD74111YRU.pdf
- Description:
- IC CODEC MONO AUDIO LP 16-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:32,552
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD74111YRU from Analog Devices is a 2.5 V mono audio codec IC featuring integrated 24-bit sigma-delta ADC and DAC channels, 85 dB ADC dynamic range and 93 dB DAC dynamic range at 48 kHz, programmable 12 dB input gain, and on-chip 1.125 V reference - designed for voiceband and audio applications in automotive telematics and portable DVC systems.
For engineers reviewing the AD74111YRU datasheet, AD74111YRU pinout, AD74111YRU application, or AD74111YRU equivalent, this page delivers verified functional identity, validated TSSOP-16 pin mapping, confirmed 8–48 kHz sample rate support, real-world timing constraints (e.g., 25 ns MCLK high/low), and precise alternative part comparisons grounded in Analog Devices' official ordering guide and specification tables.
Technical Context
The AD74111YRU implements dual multibit sigma-delta conversion engines: its ADC uses 64× oversampling with 5th-order comb + half-band decimation filtering (120 dB stop-band attenuation, 910 µs group delay), while its DAC employs 128× oversampling with zero-order hold + sinc compensation interpolation (75 dB stop-band attenuation, 505 µs group delay). Both channels support low-group-delay mode to reduce latency to 87 µs (ADC) and 55 µs (DAC).
It operates with three independent supplies (AVDD = 2.5 V, DVDD2 = 2.5 V, DVDD1 = 2.5–3.6 V), accepts master clock inputs up to 12.288 MHz, and supports flexible serial port configurations including Master/Slave mode selection via DIN at reset, 16/20/24-bit word lengths, and Mixed/Data operating modes with DFS frame synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 24 bits - enables high-fidelity digitization of voice and audio signals with >67 dB THD+N over 20 Hz–20 kHz bandwidth. |
| DAC Resolution | 24 bits - delivers low-noise analog output with >88 dB THD+N and 93 dB dynamic range at 48 kHz. |
| Sample Rate Range | 8 kHz to 48 kHz - selectable via MCLK prescalers (1×/2×/3× and 1×/2×/4×), supporting voiceband (8–16 kHz) and full audio (44.1/48 kHz) applications. |
| Dynamic Range (ADC) | 85 dB (A-weighted, 48 kHz) - meets SNR requirements for automotive-grade speech capture in noisy environments. |
| Dynamic Range (DAC) | 93 dB (no filter, 48 kHz) - ensures clean playback in portable audio devices with minimal audible noise floor. |
| Input Gain Range | 0 dB to 12 dB in 3 dB steps - allows direct interface with microphones or line-level sources without external amplification. |
| Volume Control | 1024 linear steps (–60 dB max attenuation) - provides precise software-controlled DAC output level adjustment. |
| Operating Temperature | –40°C to +105°C - qualified for automotive under-hood and infotainment system deployment. |
Pinout & Package
AD74111YRU is housed in a 16-lead TSSOP (RU-16) package with exposed pad, optimized for compact audio subsystem layouts and thermal performance in automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DCLK | Serial clock I/O | Controls data transfer timing between AD74111YRU and host DSP/microcontroller; bidirectional in Master/Slave mode. |
| DIN | Serial data input | Carries control register writes and DAC audio data; determines Master/Slave mode when sampled at RESET rising edge. |
| DFS | Frame sync I/O | Signals start of audio/data frame; output in Master mode, input in Slave mode; critical for sample alignment. |
| DOUT | Serial data output | Transmits ADC audio samples and status/control reads; three-state capable with 40 ns disable delay. |
| RESET | Power-down/reset input | Asynchronous active-low signal that clears internal registers and initiates 3072-MCLK initialization sequence. |
| VIN | ADC analog input | Single-ended 0.5 Vrms input referenced to VREFCAP (1.125 V); requires external CAPP/CAPN filter capacitors. |
| VOUT | DAC analog output | Single-ended 0.5 Vrms output referenced to VREFCAP; supports direct connection to headphone amp or line driver. |
| REFCAP | Reference decoupling | Connects 100 nF ceramic + 10 µF tantalum caps for internal 1.125 V reference stability; also accepts external reference. |
| AGND/DGND | Analog/digital ground | Separate ground pins minimize coupling noise between sensitive analog and switching digital sections. |
| AVDD/DVDD1/DVDD2 | Supply rails | AVDD (2.5 V analog), DVDD2 (2.5 V core digital), DVDD1 (2.5–3.6 V I/O tolerant) enable mixed-voltage system interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| Perfect Differential Linearity Restoration | Reduces idle tones and quantization noise floor in sigma-delta modulators, improving SNR by ≥2 dB versus standard architectures. |
| Data Directed Scrambling DAC | Makes DAC output jitter-insensitive - maintains >88 dB THD+N even with ±500 ps clock jitter, critical for low-cost crystal-less systems. |
| Software Clickless Mute | Zero-crossing detection and ramped attenuation prevent pop/click artifacts during mute/unmute transitions in voice call handling. |
| Low Group Delay Mode | Bypasses higher-order filter stages to cut ADC/DAC group delay to 87 µs / 55 µs - essential for real-time telematics echo cancellation. |
| On-Chip Reference with Bypass | Integrated 1.125 V ±50 ppm/°C reference eliminates need for external precision reference; can be disabled for shared-system reference sourcing. |
| 3.3 V Tolerant Digital Interface | DVDD1 supports 2.5–3.6 V operation, enabling direct connection to 3.3 V DSPs or microcontrollers without level shifters. |
Applications
| Digital Video Camcorders (DVC) | Automotive Telematics |
|---|---|
Use Scenario: Capturing and encoding mono audio during video recording in handheld camcorders with battery-constrained power budgets. IC Role / Device Role / Timing Role: Front-end audio processor handling microphone input digitization (ADC) and speaker/headphone playback (DAC) with synchronized sample clocks. Use Value: 85 dB ADC DR and 93 dB DAC DR ensure broadcast-quality mono track fidelity; 2.5 V operation minimizes system power draw. |
Use Scenario: Voice command acquisition and hands-free call processing in automotive infotainment head units operating across –40°C to +105°C. IC Role / Device Role / Timing Role: Mono audio interface bridging microphone array and DSP, providing programmable gain, mute, and low-latency path for echo cancellation. Use Value: Low-group-delay mode (87 µs ADC) enables sub-100 µs round-trip latency for real-time acoustic echo suppression in noisy cabin environments. |
| Portable Audio Players | Voice Processing Terminals |
Use Scenario: Playback and recording in compact personal audio devices (e.g., feature phones, voice recorders) requiring small footprint and low EMI. IC Role / Device Role / Timing Role: Single-chip audio codec managing analog I/O, volume control, and digital interface to baseband processor or audio SoC. Use Value: 16-lead TSSOP package and integrated reference reduce BOM count by ≥3 passive components; 12 dB PGA accommodates diverse mic sensitivities. |
Use Scenario: Speech recognition front-end in industrial voice terminals where consistent SNR and temperature-stable reference are mandatory. IC Role / Device Role / Timing Role: High-accuracy analog-to-digital conversion of near-field speech, with programmable gain and peak readback for automatic level control. Use Value: 50 ppm/°C reference TC and A-weighted 87 dB ADC DR guarantee stable 63 dB SNR across full automotive temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mono audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AK4531VN | 24-bit mono codec with 82 dB ADC DR, 90 dB DAC DR, 3.3 V only supply, no low-group-delay mode. | Lacks automotive temp rating (–20°C to +70°C only); no MCLK prescaler flexibility for 8/11.025/44.1/48 kHz coexistence. | Choose AK4531VN only for cost-sensitive consumer audio where extended temperature and ultra-low latency are not required. |
| TLV320AIC10IPFB | 16-bit mono codec with 84 dB ADC DR, 88 dB DAC DR, 3.3 V supply, integrated PLL, but no programmable PGA. | Requires external op-amp for mic gain; lacks peak readback and clickless mute; rated only to +85°C. | Select TLV320AIC10IPFB when PLL-based clock generation is preferred and PGA functionality is handled externally. |
Compared with AK4531VN and TLV320AIC10IPFB, AD74111YRU uniquely combines automotive temperature qualification, on-chip 1.125 V reference with bypass, low-group-delay mode for <100 µs latency, and flexible MCLK prescaling - making it the only option qualified for real-time telematics voice processing in harsh environments.
Availability
AD74111YRU is available at Aetrix Electronics and suitable for automotive telematics, portable DVC, and voice processing applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.
Supply support for AD74111YRU 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, with design centers and manufacturing facilities worldwide.
The AD74111YRU belongs to Analog Devices' precision audio codec product line, engineered specifically for mono-channel voice and audio front-end processing in automotive, portable, and industrial systems demanding wide temperature operation and low-power integrity.
FAQ
What is the maximum sample rate supported by the AD74111YRU?
The AD74111YRU 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 (1×). 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 bandwidth with A-weighting applied where specified. Lower rates (8 kHz, 11.025 kHz, 16 kHz, 44.1 kHz) are enabled via programmable MCLK prescalers.
Does the AD74111YRU require external filter capacitors, and if so, what values are recommended?
Yes, the AD74111YRU requires two external capacitors on CAPP (Pin 10) and CAPN (Pin 7) to stabilize the switched-capacitor input of the sigma-delta ADC modulator. Analog Devices specifies NPO or polypropylene film capacitors in the range of 100 pF to 1 nF, with typical values of 100 pF–470 pF used in reference designs. These capacitors form a low-pass filter with the PGA's ~124 Ω output impedance and must connect directly to AGND (Pin 12) to minimize noise coupling.
Can the AD74111YRU operate with a 3.3 V digital interface while using 2.5 V analog supplies?
Yes, the AD74111YRU supports mixed-supply operation: AVDD and DVDD2 are specified at 2.5 V ±5%, while DVDD1 (digital I/O supply) accepts 2.5 V to 3.6 V. This allows direct interfacing with 3.3 V DSPs or microcontrollers without level-shifting circuitry. Logic inputs (DIN, DFS, RESET, MCLK) tolerate voltages up to DVDD1, and outputs (DOUT, DCLK, DFS) swing rail-to-rail within DVDD1 limits, ensuring robust communication across voltage domains.
How does the low-group-delay mode affect the AD74111YRU's performance and configuration?
Enabling low-group-delay mode (via Control Register C) reduces ADC group delay from 910 µs to 87 µs and DAC group delay from 505 µs to 55 µs at 48 kHz by bypassing higher-order filter stages. This mode trades off some stop-band attenuation (ADC: 120 dB → 100 dB; DAC: 75 dB → 60 dB) for latency-critical applications like echo cancellation. It does not alter resolution, dynamic range, or THD+N specifications under standard test conditions.
Is the AD74111YRU pin-compatible with other members of the AD74xx codec family?
No, the AD74111YRU is not pin-compatible with other AD74xx-series codecs such as AD7411 or AD7412. Its 16-lead TSSOP pinout is unique to the AD74111, with dedicated pins for REFCAP (Pin 11), CAPP/CAPN (Pins 10/7), and separate DVDD1/DVDD2 supplies (Pins 15/14). Pin compatibility is not claimed in the datasheet, and substitution would require PCB layout revision due to differing power domain routing and analog decoupling requirements.
AD74111YRU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Audio Codec
- 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:
- 87 / 95
- 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
AD74111YRU FAQ
1.How can I place an order for AD74111YRU through Aetrix?
Please submit a Request for Quotation (RFQ) for AD74111YRU 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 AD74111YRU reliable?
The price and inventory of AD74111YRU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD74111YRU is usually 5 days.
3.What payment methods are accepted for AD74111YRU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD74111YRU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD74111YRU?
AD74111YRU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD74111YRU 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 AD74111YRU?
For technical support, including AD74111YRU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD74111YRU requirements.
6.How does Aetrix verify that AD74111YRU is sourced from the original manufacturer or authorized distributors?
All AD74111YRU 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 AD74111YRU meets industry standards.
7.What is the process for return or replacement of AD74111YRU?
All AD74111YRU units undergo pre-shipment inspection (PSI). If there is an issue with AD74111YRU, 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 AD74111YRU part is unused and in its original packaging.
Return procedure for AD74111YRU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD74111YRU Tags
-
NAU88C22YG
Nuvoton Technology Corporation
-
TLV320AIC3100IRHBR
Texas Instruments
-
DA7212-01UM2
Renesas
-
NAU8810YG
Nuvoton Technology Corporation
-
DA7218-00U32
Renesas
-
CMX655DQ6-TR1K
CML Micro
-
SGTL5000XNLA3
NXP Semiconductors
-
TLV320AIC3104IRHBR
Texas Instruments
-
MAX9867EWV+T
Analog Devices Inc./Maxim Integrated
-
MAX9860ETG+T
Analog Devices Inc./Maxim Integrated
-
TLV320AIC3106IRGZR
Texas Instruments
-
SGTL5000XNLA3R2
NXP Semiconductors
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…
