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Analog Devices Inc. AD1980JSTZ-REEL
- Part No.:
- AD1980JSTZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- CODECS
- Package:
- 48-LQFP
- Datasheet:
-
AD1980JSTZ-REEL.pdf
- Description:
- IC CODEC STEREO 6-DAC 20B 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,700
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Product details
Overview
AD1980JSTZ-REEL from Analog Devices is an AC '97 2.3-compliant audio codec IC designed for PC motherboard and multimedia system audio subsystems. It integrates six 20-bit DACs for 5.1-channel surround output, a 16-bit stereo ADC, S/PDIF transmitter, integrated headphone amplifier, and programmable parametric equalizer - all in a single 48-lead LQFP package. It supports variable sample rates from 7 kHz to 96 kHz and delivers >90 dB dynamic range for CD-quality playback.
For engineers reviewing the AD1980JSTZ-REEL datasheet, AD1980JSTZ-REEL pinout, AD1980JSTZ-REEL application, or AD1980JSTZ-REEL equivalent, this page provides verified functional specifications, validated AC '97 interface timing, confirmed analog I/O roles (LINE_IN_L/R, SURR_OUT_L/R, HP_OUT_L/R), and real-world use cases in desktop audio subsystems with jack-sense–enabled topology switching.
Technical Context
The AD1980JSTZ-REEL implements a full AC '97 2.3 digital audio controller with dedicated PCM front/surround/center/LFE DAC paths and independent stereo ADC input channels. Its integrated PLL accepts 24.576 MHz crystal input or 14.31818 MHz/48 MHz reference clocks to generate precise 12.288 MHz BIT_CLK with ≤750 ps jitter.
Analog signal routing includes software-controllable mixing of up to eight inputs (MIC1/2, LINE_IN, CD, AUX, PHONE_IN) into multiple output paths, with per-channel 1.5 dB step volume control, mute, and gain/attenuation spanning 46.5 dB. Jack sense (JS0/JS1) and EAPD enable automatic topology detection and external amplifier power-down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Audio Interface | AC '97 2.3-compliant serial link (SYNC, BIT_CLK, SDATA_IN/OUT) with 12.288 MHz clock accuracy ±1 ppm |
| DAC Resolution & Channels | 20-bit resolution across six independent DACs: FRONT_L/R, SURR_L/R, CENTER, LFE - enabling true 5.1 surround sound output |
| ADC Resolution & Channels | 16-bit stereo ADC with selectable MIC preamp (0/10/20/30 dB gain), supporting dual-mic recording and line-level inputs |
| Dynamic Range | ≥90 dB A-weighted (DAC), ≥82 dB (ADC) - meets CD audio fidelity requirements at 48 kHz sampling |
| Sample Rate Support | Variable rate from 7 kHz to 96 kHz with double-rate mode (fS = 96 kHz); no external resampling required |
| S/PDIF Output | Dedicated SPDIF pin (Pin 48) with configurable format control register (Reg 3Ah) for consumer/professional stream encoding |
| Power Management | 11 discrete power-down states (e.g., ADC-only, FRONT_DAC-only, ALL_DACs+Mixer) with sub-1 mA standby current |
Pinout & Package
AD1980JSTZ-REEL is housed in a 48-lead LQFP (Low Profile Quad Flatpack, ST-48 package option), measuring 7 mm × 7 mm × 1.4 mm, with 0.5 mm lead pitch and exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 5, 8 | SDATA_OUT / SDATA_IN | AC-Link bidirectional serial data pins: SDATA_OUT carries codec-to-controller PCM data; SDATA_IN receives controller-to-codec commands and PCM streams |
| 6, 10, 11 | BIT_CLK / SYNC / RESET | Core AC-Link timing signals: BIT_CLK (12.288 MHz master clock), SYNC (frame sync pulse), RESET (hardware reset active-low, min 1.0 µs pulse) |
| 35, 36, 31, 32, 37, 39, 41 | LINE_OUT_L/R, CENTER_OUT, LFE_OUT, MONO_OUT, SURR_OUT_L/R | Analog output terminals supporting 5.1-channel playback; SURR_OUT_L/R double as HP_OUT_L/R when HPSEL=1 in Reg 76h |
| 13–24 | PHONE_IN, AUX_L/R, CD_L/R, MIC1/2, LINE_IN_L/R | Seven analog input sources with programmable gain/attenuation; MIC1/2 support stereo mic recording with 30 dB preamp option |
| 27, 28 | VREF, VREFOUT | Voltage reference filter and programmable MIC bias output (2.25 V or 3.65 V via VREFH bit in Reg 76h), driving up to 5 mA |
| 16, 17 | JS1, JS0 | Jack sense inputs for auto-detection of headphone, line-out, or mic plug insertion - enables topology switching without host intervention |
| 47 | EAPD | External Amplifier Power-Down output: open-drain signal controlling external power amp enable/disable during low-power states |
| 48 | SPDIF | Dedicated S/PDIF serial output pin compliant with IEC-60958; format controlled by Reg 3Ah (SPSR[1:0], PRE, COPY, AUD, PRO) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Parametric Equalizer | Configurable 5-band EQ (Reg 60h/62h) with coefficient storage - enables real-time tone shaping without DSP offload |
| Auto Topology Switching | Hardware jack sense (JS0/JS1) triggers automatic reconfiguration of analog routing and output drivers upon plug detection |
| Software-Controlled VREF_OUT | VREFOUT voltage selectable between 2.25 V (VREFH = 0) and 3.65 V (VREFH = 1) for optimal MIC bias across electret types |
| Channel Spreading & Down-Mix | On-chip stereo-to-surround spreading (SPRD bit) and mono-to-stereo down-mix (DMX bits) reduce host CPU load for legacy content |
| AC-Link Low-Power Mode | Slot-2 power-down (tS2_PDOWN ≤ 1.0 µs) reduces idle power while maintaining AC-Link link integrity |
Applications
| Desktop Motherboard Audio | Gaming PC Audio Subsystem |
|---|---|
Use Scenario: Integrated audio solution on ATX/mATX motherboards supporting AC '97 slot-based audio architecture. IC Role / Device Role / Timing Role: Primary AC '97 codec managing all analog I/O, digital interface timing (BIT_CLK/SYNC), and host-controlled volume/mute registers. Use Value: Eliminates need for discrete DAC/ADC, mixer, and clock generation - reduces BOM count and PCB area by >40% vs. discrete implementation. |
Use Scenario: High-fidelity 5.1 surround audio path in enthusiast gaming PCs with headphone jack sharing and EAPD-driven amplifier control. IC Role / Device Role / Timing Role: Audio processing hub handling simultaneous 5.1 playback, stereo mic capture, and S/PDIF passthrough with <15 ns output valid delay. Use Value: Enables zero-latency headphone monitoring during game voice chat via SURR_OUT_L/R → HP_OUT_L/R remapping and EAPD-triggered amp enable. |
| Notebook Docking Station Audio | Legacy Industrial HMI Audio |
Use Scenario: Audio expansion in USB/PCIe docking stations requiring AC '97 compatibility with jack-sense–driven reconfiguration. IC Role / Device Role / Timing Role: AC-Link slave codec interfacing with host controller; JS0/JS1 detect docked peripherals to switch between speaker/headphone outputs. Use Value: Supports hot-plug audio topology changes without OS driver reload - critical for seamless docking/undocking user experience. |
Use Scenario: Audio feedback and voice prompt generation in industrial HMIs using legacy AC '97 infrastructure and long-life component requirements. IC Role / Device Role / Timing Role: Fixed-function audio codec providing reliable mono/stereo playback and microphone input with guaranteed 0°C–70°C operation. Use Value: Meets 10+ year lifecycle demand with no firmware dependencies - all functions controlled via AC '97 register writes (no embedded code execution). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD1981BASTZ-REEL | Enhanced AC '97 2.3 codec with 24-bit DACs, integrated AC-Link controller, and lower THD (–94 dB vs –90 dB LINE_OUT) | Targets premium desktops requiring higher SNR and built-in AC-Link master capability; lacks SPDIF output | Select AD1981BASTZ-REEL only if SPDIF is unnecessary and SNR >95 dB is required - not drop-in compatible due to different register map and pinout |
| WM9713LGEFL/V | Wolfson AC '97 codec with integrated touch-screen controller, 20-bit DACs, and 16-bit ADC; uses 48-pin TQFP but different pin assignment | Designed for mobile/embedded systems with touchscreen I/O; includes GPIOs and battery monitoring not present in AD1980JSTZ-REEL | Choose WM9713LGEFL/V only when touch interface integration is mandatory - requires PCB redesign and driver adaptation |
Compared with AD1980JSTZ-REEL, AD1981BASTZ-REEL offers higher-resolution DACs but removes SPDIF and increases complexity, while WM9713LGEFL/V adds touch functionality at the cost of AC '97 timing precision and desktop audio optimization - making AD1980JSTZ-REEL the optimal choice for cost-sensitive, SPDIF-enabled AC '97 motherboard designs.
Availability
AD1980JSTZ-REEL is available at Aetrix Electronics and suitable for desktop motherboard design, gaming PC audio subsystems, and legacy industrial HMI applications requiring stable component supply, long-lifecycle support, and AC '97 2.3 compliance.
Supply support for AD1980JSTZ-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.
The AD1980JSTZ-REEL belongs to Analog Devices' AC '97 audio codec product line, engineered specifically for PC platform audio subsystems requiring integrated multi-channel DAC/ADC, jack-sense automation, and S/PDIF output - with emphasis on BIOS-level compatibility and minimal host CPU overhead.
FAQ
What is the maximum supported sample rate for AD1980JSTZ-REEL?
The AD1980JSTZ-REEL supports variable sample rates from 7 kHz to 96 kHz, including double-rate mode (fS = 96 kHz) for high-resolution audio playback. This is achieved via its integrated PLL, which locks to 24.576 MHz crystal input to generate precise 12.288 MHz BIT_CLK. The AD1980JSTZ-REEL does not require external resampling hardware to operate at 96 kHz, as all DAC and ADC paths are natively clocked at that rate.
Does AD1980JSTZ-REEL support stereo microphone input?
Yes, the AD1980JSTZ-REEL supports stereo microphone input via dedicated MIC1 and MIC2 pins (Pins 21 and 22), each with independently programmable preamp gain (0/10/20/30 dB). The MIC Volume Register (0Eh) includes M20 bit to enable 20 dB boost, and MBG[1:0] bits in Register 76h allow adjustment to 10 dB or 30 dB. Both channels feed the stereo ADC path, enabling true dual-mic recording without external amplification.
How does jack sense work on AD1980JSTZ-REEL?
Jack sense on the AD1980JSTZ-REEL is implemented through JS0 and JS1 pins (Pins 17 and 16), which monitor voltage levels at connected audio jacks. When a plug is inserted, these inputs change state and trigger automatic reconfiguration of analog routing (e.g., disabling LINE_OUT and enabling HP_OUT), output drivers, and EAPD signaling. This behavior is controlled by the JACK SENSE register (72h) and requires no host CPU polling - it operates autonomously in hardware.
Can AD1980JSTZ-REEL drive headphones directly?
Yes, the AD1980JSTZ-REEL integrates a stereo headphone amplifier capable of driving 32 Ω loads at full scale (1 V rms). Pins 39 and 41 (SURR_OUT_L/HP_OUT_L and SURR_OUT_R/HP_OUT_R) serve dual roles: when HPSEL bit (Reg 76h, D6) is set, they become dedicated headphone outputs with 100 mW total drive capability. The amplifier supports software-controlled volume (Register 04h) and mute, and automatically enters low-power mode when headphones are unplugged (via jack sense).
What power supply voltages does AD1980JSTZ-REEL require?
The AD1980JSTZ-REEL requires two independent supplies: AVDD = 4.75 V to 5.25 V (typical 5.0 V) for analog circuitry including DACs, ADCs, and headphone amplifier; and DVDD = 3.15 V to 3.45 V (typical 3.3 V) for digital core, AC-Link interface, and register logic. Separate DVDD1/DVDD2 and AVDD1/AVDD2/AVDD3/AVDD4 pins ensure low-noise power distribution. Total typical power dissipation is 563 mW in fully active mode.
AD1980JSTZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SoundMAX®
- Package/Case:
- 48-LQFP
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Audio Codec '97
- Data Interface:
- Serial
- Resolution (Bits):
- 16, 20 b
- Number of ADCs / DACs:
- 2 / 6
- Sigma Delta:
- No
- S/N Ratio, ADCs / DACs (db) Typ:
- -
- Dynamic Range, ADCs / DACs (db) Typ:
- 82 / 90
- Voltage - Supply, Analog:
- 4.75V ~ 5.25V
- Voltage - Supply, Digital:
- 3.15V ~ 3.45V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-LQFP (7x7)
AD1980JSTZ-REEL FAQ
1.How can I place an order for AD1980JSTZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD1980JSTZ-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 AD1980JSTZ-REEL reliable?
The price and inventory of AD1980JSTZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD1980JSTZ-REEL is usually 5 days.
3.What payment methods are accepted for AD1980JSTZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD1980JSTZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD1980JSTZ-REEL?
AD1980JSTZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD1980JSTZ-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 AD1980JSTZ-REEL?
For technical support, including AD1980JSTZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD1980JSTZ-REEL requirements.
6.How does Aetrix verify that AD1980JSTZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD1980JSTZ-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 AD1980JSTZ-REEL meets industry standards.
7.What is the process for return or replacement of AD1980JSTZ-REEL?
All AD1980JSTZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD1980JSTZ-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 AD1980JSTZ-REEL part is unused and in its original packaging.
Return procedure for AD1980JSTZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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