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Analog Devices Inc. AD1986AJCPZ-RL
- Part No.:
- AD1986AJCPZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- CODECS
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD1986AJCPZ-RL.pdf
- Description:
- IC CODEC HD AUDIO AC'97 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
AD1986AJCPZ-RL from Analog Devices is a dual-interface audio codec IC supporting both AC '97 and HD Audio protocols, integrating six 20-bit DACs for 5.1-channel playback, stereo 20-bit ADCs with programmable gain amplifiers, S/PDIF output, integrated headphone amplifiers, and jack-sensing logic. It operates with 5.0 V analog and 3.3 V digital supplies, delivers >90 dB dynamic range, and targets PC motherboard audio subsystems requiring high-fidelity multichannel audio with flexible input routing.
For engineers reviewing the AD1986AJCPZ-RL datasheet, AD1986AJCPZ-RL pinout, AD1986AJCPZ-RL application, or AD1986AJCPZ-RL equivalent, key selection considerations include dual AC'97/HD Audio interface compatibility, 48-lead LQFP package constraints, jack-sense support for up to eight audio jacks, parametric equalizer integration, and software-controllable microphone biasing across MIC_1/2, LINE_IN, and C/LFE pins.
Technical Context
The AD1986AJCPZ-RL implements a mixed-signal architecture with Σ-Δ ADCs (20-bit) and Σ-Δ DACs (20/24-bit), an integrated PLL for system clock generation, and configurable audio widgets per HD Audio specification. Its analog core includes differential CD input, mono phone input, AUX/line-in stereo inputs, and three software-selectable microphone bias sources.
Digital control is implemented via AC'97 register map (0x00–0x7E) and HD Audio widget nodes (NID 0x00–0x03+), supporting variable sample rates from 7 kHz to 96 kHz in 1 Hz increments, auto-topology switching, and advanced jack presence detection using two dedicated sense pins (JACK_SENSE_A/B) with resistor-based encoding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Audio Interface | AC '97 Rev 2.3 and Intel HD Audio compliant - enables drop-in replacement in legacy and modern PC audio designs without firmware rewrite. |
| DAC Resolution & Channels | 20-bit resolution on all six DACs (Front, Surround, Center/LFE, Mono) - ensures ≥91 dB A-weighted dynamic range for 5.1 surround playback. |
| ADC Resolution & Gain | 20-bit ADCs with 0–30 dB programmable gain amplifier - supports mic-level (32 mVrms) to line-level (1 Vrms) inputs without external preamp components. |
| Sample Rate Range | 7 kHz to 96 kHz in 1 Hz steps - enables precise rate matching for VoIP, broadcast, and professional audio applications. |
| Dynamic Range | >90 dB SNR (A-weighted) - meets high-fidelity desktop and gaming audio requirements with low noise floor. |
| Jack Sensing | Detects insertion on up to 8 jacks via two GPIO pins and external resistors - eliminates need for dedicated microcontroller or external I/O expander. |
| Package | 48-lead LQFP (7 mm × 7 mm, 0.5 mm pitch) - compatible with standard PCB assembly processes and thermal management per θJA = 48°C/W. |
Pinout & Package
AD1986AJCPZ-RL is housed in a 48-lead LQFP package with exposed pad (no thermal slug specified), rated for commercial temperature range (0°C to +70°C). Pin 1 identifier is marked with dot; pin numbering follows standard counter-clockwise convention from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC97CK (Pin 2) | AC '97 Reference Clock Input | Accepts 14.31818 MHz clock for AC '97 mode; tied to DVSS for HD Audio operation - enables dual-mode flexibility without hardware change. |
| JACK_SENSE_A / JACK_SENSE_B (Pins 16, 17) | Jack Presence Detection Inputs | Read resistor-encoded voltage levels to identify up to eight jacks - reduces BOM count by replacing discrete sense ICs or MCU polling. |
| VREF_OUT (MIC_1/2), VREF_OUT (LINE_IN), VREF_OUT (C/LFE) (Pins 28, 29, 33) | Programmable Microphone Bias Outputs | Three independent, software-controlled bias sources - eliminate external bias resistors when sharing MIC/LINE/C/LFE inputs. |
| LINE_OUT_L / LINE_OUT_R (Pins 43, 45) | Front Channel Line Output | Capable of driving 32 Ω headphones directly - allows shared HP_OUT/LINE_OUT pins to reduce connector count on compact motherboards. |
| S/PDIF_OUT (Pin 48) | Digital Audio Output | Direct S/PDIF stream output - supports Dolby Digital/DTS bitstream passthrough without external serializer. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Parametric Speaker Equalizer | Configurable 5-band EQ via registers 0x60/0x62 - enables real-time acoustic compensation for speaker placement and enclosure resonance without DSP offload. |
| Triple Software-Controlled Microphone Bias | Independent VREF_OUT for MIC_1/2, LINE_IN, and C/LFE groups - removes need for external bias networks in multi-jack, multi-function audio hubs. |
| Auto-Topology Switching | Hardware-assisted jack sensing with advanced detection (NID 0x02–0x03) - enables automatic reconfiguration of input/output routing when headset or mic is plugged in. |
| Dual-Mode Audio Interface | Single silicon die supporting AC '97 and HD Audio protocols - simplifies platform migration and extends design lifecycle across chipset generations. |
| Reduced External Component Count | On-chip microphone mixing, line/mic/C-LFE sharing, and headphone drive capability - cuts typical audio subsystem BOM by ≥12 passive components. |
Applications
| Desktop PC Audio Subsystem | Gaming Motherboard Audio |
|---|---|
Use Scenario: Integrated audio solution on ATX/mATX motherboards delivering 5.1 surround sound, front-panel headset support, and microphone input for voice chat. IC Role / Device Role / Timing Role: Primary audio codec handling ADC/DAC conversion, jack sensing, S/PDIF output, and AC'97/HD Audio link protocol translation. Use Value: Eliminates need for separate jack-detection IC and external mic preamps while enabling simultaneous headphone and line-out operation via shared HP_OUT/LINE_OUT pins. |
Use Scenario: High-fidelity audio path for competitive gaming rigs with low-latency voice communication, virtual surround processing, and headset mic monitoring. IC Role / Device Role / Timing Role: Multichannel DAC/ADC hub with 96 kHz double-rate capability and 7 kHz–48 kHz fine-grained sample rate control for adaptive VoIP codecs. Use Value: Supports real-time parametric EQ tuning and stereo mic pass-through to mixer - critical for noise suppression and voice clarity in team-based games. |
| Notebook Docking Station Audio | Thin Client Audio Hub |
Use Scenario: Audio expansion in USB-C or PCIe-based docking stations providing line-in, mic-in, headphone-out, and S/PDIF to external receivers. IC Role / Device Role / Timing Role: Dual-interface bridge converting host-side HD Audio commands into analog outputs and S/PDIF streams while managing jack presence across multiple ports. Use Value: Enables eight-jack topology detection using only two GPIOs - reduces complexity versus discrete sense solutions in space-constrained dock PCBs. |
Use Scenario: Centralized audio I/O for enterprise thin clients with telephony integration, headset support, and remote microphone monitoring. IC Role / Device Role / Timing Role: Audio codec providing mono speakerphone output (MONO_OUT), differential CD input, and EAPD-controlled external amplifier shutdown. Use Value: Built-in microphone-to-mono output path and software-enabled outputs for jack sharing - simplifies call-control logic in Linux-based thin client firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Realtek ALC887-GR | HD Audio-only interface; no AC '97 support; integrated power management but no S/PDIF output. | Targeted at cost-sensitive mainstream desktops without legacy OS or AC '97 dependency. | Select when HD Audio compliance is sufficient and S/PDIF passthrough is not required. |
| Cirrus Logic CS4207-DQZ | 24-bit/192 kHz DAC/ADC; supports I²S and TDM; no jack sensing or integrated PLL; requires external clock source. | Used in professional audio interfaces and embedded media players needing higher resolution and lower jitter. | Select when ultra-low THD (-105 dB) and 192 kHz sampling are mandatory, and system provides precision clocking. |
Compared with AD1986AJCPZ-RL, the ALC887-GR lacks dual-interface flexibility and S/PDIF, while the CS4207-DQZ offers superior resolution but requires external clocking and adds BOM complexity - making AD1986AJCPZ-RL optimal for PC platforms needing backward compatibility, jack intelligence, and integrated signal chain consolidation.
Availability
AD1986AJCPZ-RL is available at Aetrix Electronics and suitable for desktop PC audio subsystems, gaming motherboard designs, and notebook docking station development requiring stable component supply, long-lifecycle support, and dual AC'97/HD Audio interoperability.
Supply support for AD1986AJCPZ-RL 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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial automation, and communications infrastructure.
The AD1986A product line was designed specifically for PC audio applications requiring seamless transition between AC '97 and HD Audio standards, integrating codec, jack sensing, and parametric EQ functions into a single 48-lead LQFP device.
FAQ
What audio interface standards does the AD1986AJCPZ-RL support?
The AD1986AJCPZ-RL supports both AC '97 Rev 2.3 and Intel HD Audio specifications. It uses AC97CK pin for AC '97 clocking and BIT_CLK/SDATA_IN/SDATA_OUT/SYNC for HD Audio link timing. The same physical device can be configured via software to operate in either mode - no hardware modification is needed to switch between standards. This dual compatibility is confirmed in the Functional Block Diagram and Register Map sections of the AD1986A Rev. 0 datasheet.
Does the AD1986AJCPZ-RL include integrated headphone amplifiers?
Yes, the AD1986AJCPZ-RL integrates dual headphone amplifiers capable of driving 32 Ω loads directly from HP_OUT_L and HP_OUT_R pins. These amplifiers share output capability with LINE_OUT_L/R pins via LOSEL/HPSEL register bits (Register 0x7A), allowing flexible routing. The datasheet specifies 2.83 V p-p full-scale output and ≤75 dB THD for HP_OUT, confirming dedicated headphone drive functionality beyond line-level buffering.
How many microphone inputs does the AD1986AJCPZ-RL support, and how is biasing handled?
The AD1986AJCPZ-RL supports three independent microphone bias domains: MIC_1/2, LINE_IN, and C/LFE. Each has its own programmable VREF_OUT pin (Pins 28, 29, 33) controllable via MVREF[2:0] and CVREF[2:0] bits in Registers 0x70 and 0x72. This allows simultaneous biasing of multiple jacks without external resistors - confirmed in the "Reduced Support Components" section and Pin Function Descriptions Table 19–20 of the AD1986A Rev. 0 datasheet.
What is the maximum sample rate supported by the AD1986AJCPZ-RL DACs and ADCs?
The AD1986AJCPZ-RL supports double-rate audio up to 96 kHz for both DACs and ADCs, with fine-grained control from 7 kHz to 48 kHz in 1 Hz increments. This is explicitly stated in the "ENHANCED FEATURES" list and verified in Register 0x2C (Front DAC PCM Rate), Register 0x2E (Surround DAC PCM Rate), Register 0x30 (C/LFE DAC PCM Rate), and Register 0x32 (ADC PCM Rate), all of which accept 16-bit values encoding exact sample frequencies.
Can the AD1986AJCPZ-RL detect jack insertion on more than one audio port?
Yes, the AD1986AJCPZ-RL supports jack presence detection on up to eight separate audio jacks using only two dedicated input pins: JACK_SENSE_A (Pin 16) and JACK_SENSE_B (Pin 17). Each pin reads a resistor-encoded voltage level, and internal logic decodes combinations to identify individual jack insertions - a capability documented in the "Advanced Jack Sense" register description (Register 0x78) and the "Jack Presence Detection" section (Page 53) of the AD1986A Rev. 0 datasheet.
AD1986AJCPZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SoundMAX®
- Package/Case:
- 48-VFQFN Exposed Pad, CSP
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Audio Codec '97, HD
- Data Interface:
- Serial
- Resolution (Bits):
- 20 b
- Number of ADCs / DACs:
- 2 / 6
- Sigma Delta:
- No
- S/N Ratio, ADCs / DACs (db) Typ:
- -
- Dynamic Range, ADCs / DACs (db) Typ:
- 85 / 91
- Voltage - Supply, Analog:
- 4.5V ~ 5.5V
- Voltage - Supply, Digital:
- 2.97V ~ 3.63V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-LFCSP-VQ (7x7)
AD1986AJCPZ-RL FAQ
1.How can I place an order for AD1986AJCPZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD1986AJCPZ-RL 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 AD1986AJCPZ-RL reliable?
The price and inventory of AD1986AJCPZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD1986AJCPZ-RL is usually 5 days.
3.What payment methods are accepted for AD1986AJCPZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD1986AJCPZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD1986AJCPZ-RL?
AD1986AJCPZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD1986AJCPZ-RL 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 AD1986AJCPZ-RL?
For technical support, including AD1986AJCPZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD1986AJCPZ-RL requirements.
6.How does Aetrix verify that AD1986AJCPZ-RL is sourced from the original manufacturer or authorized distributors?
All AD1986AJCPZ-RL 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 AD1986AJCPZ-RL meets industry standards.
7.What is the process for return or replacement of AD1986AJCPZ-RL?
All AD1986AJCPZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with AD1986AJCPZ-RL, 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 AD1986AJCPZ-RL part is unused and in its original packaging.
Return procedure for AD1986AJCPZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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