VS1073A-L - MP3/Ogg/FLAC Audio Codec LQFP-48 | VLSI
Référence : VS1073A-L ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $20 | $20,00 |
| 10 | $10 | $100,00 |
| 100 | $10 | $1 000,00 |
| 500 | $4 | $2 000,00 |
| 1 000 | $2.55 | $2 550,00 |
| 2 250 | $2.44 | $5 490,00 |
VS1073A-L Présentation
An audio codec IC is a mixed-signal integrated circuit that converts analog microphone or line-level audio into digital samples (ADC path) and converts stored or received digital audio back into analog signals for headphones or line output (DAC path). Modern codecs such as the VS1073A-L integrate a hardware DSP accelerator so that compressed formats like MP3 and Ogg Vorbis, as well as FLAC and WAV PCM, can be decoded or encoded on-chip without consuming the host MCU's CPU cycles.
Key features include on-chip encoding and decoding of MP3, Ogg Vorbis, FLAC, WAV PCM, and G.711/G.722 voice formats; a stereo 16-bit DAC and stereo 16-bit ADC; separate analog AVDD and digital CVDD supplies; a high-level SCI (Serial Control Interface) command set; and a dedicated serial audio data (SDI) input that streams compressed bitstreams to the decoder. The part runs from a 6.144 MHz fundamental-mode crystal or external clock and supports variable sample rates from 8 kHz to 48 kHz at the analog interfaces.
The VS1073A-L uses a 6.144 MHz reference clock and a separate internal PLL to derive the audio sample-rate clocks. It exposes I2S in addition to the parallel/DSP serial audio data path, which simplifies connection to external DACs, ADCs, or digital speaker amplifiers. The 1.25 V CVDD rail must be generated externally (the VS10xx comparison app note recommends a dedicated LDO for future-proofing).
Typical applications include MP3 player modules, Ogg Vorbis / FLAC playback docks, voice recorders, two-way intercom panels, USB audio adapters, and embedded audio playback in industrial HMIs. The combination of on-chip encoding and decoding makes it a fit for products that must both record and play audio.
When designing with this part, ensure the CVDD rail is stable before AVDD is applied, route the analog grounds separately back to the regulator, and keep the 6.144 MHz crystal traces short to avoid jitter that would otherwise degrade the DAC SNR.
This page synthesizes distributor pricing, drop-in VS10xx family alternatives, and practical design notes not found in the bare manufacturer datasheet, giving engineers a one-stop reference for sourcing and designing with the VS1073A-L.
Alternatives de remplacement direct pour VS1073A-L — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
VS1063A-L
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
VS1053B-L
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
VS1003B-L
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
VS1053-L
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
VS1063-L
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
VS1073A-L Spécifications
| Product Type | Audio codec IC with on-chip MP3/Ogg/FLAC/WAV encoder and decoder |
| Decoded Formats | MP3, Ogg Vorbis, FLAC, WAV (PCM), G.711 u-law, G.711 A-law, G.722 |
| Encoded Formats | MP3, Ogg Vorbis, FLAC, PCM WAV, G.711, G.722 |
| Host Interface | SPI (SCI for control, SDI for audio data stream) |
| Auxiliary Interfaces | GPIO, I2S, UART |
| DAC / ADC Resolution | 16-bit stereo DAC and 16-bit stereo ADC |
| Sample Rates | 8 kHz to 48 kHz |
| Reference Clock | 6.144 MHz fundamental-mode crystal or external clock |
| Digital Supply CVDD | 1.25 V (external regulator recommended) |
| Boîtier | LQFP-48 (SMD) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant (per VLSI webstore listing) |
| Datasheet Status | PRELIMINARY (per vlsi.fi PDF header) |
Configuration des broches de VS1073A-L
| Broche 1 | GPIO0 — General-purpose I/O 0 |
| Broche 2 | GPIO1 — General-purpose I/O 1 |
| Broche 3 | GPIO2/DCLK — General-purpose I/O 2 / DCLK |
| Broche 4 | GPIO3/SDATA — General-purpose I/O 3 / SDATA |
| Broche 5 | GPIO4 — General-purpose I/O 4 |
| Broche 6 | XRESET — Active-low hardware reset |
| Broche 7 | DVDD — Digital supply (CVDD 1.25 V) |
| Broche 8 | DGND — Digital ground |
| Broche 9 | XTALO — Crystal oscillator output |
| Broche 10 | XTALI — Crystal oscillator input (6.144 MHz) |
| Broche 11 | TEST — Test pin (per datasheet) |
| Broche 12 | IOVDD — I/O supply |
| Broche 13 | XCS — SPI chip select (active low) |
| Broche 14 | SCLK — SPI serial clock |
| Broche 15 | SI — SPI serial input (SCI) |
| Broche 16 | SO — SPI serial output (SCI) |
| Broche 17 | XCS — SDI chip select (active low, compressed audio data) |
| Broche 18 | SCLK — SDI serial clock (compressed audio data) |
| Broche 19 | SDI — SDI serial data (compressed audio stream) |
| Broche 20 | I2S_MCLK — I2S master clock |
| Broche 21 | I2S_BCLK — I2S bit clock |
| Broche 22 | I2S_LRC — I2S word clock (left/right) |
| Broche 23 | I2S_DATA — I2S serial data |
| Broche 24 | UART_TX — UART transmit |
| Broche 25 | UART_RX — UART receive |
| Broche 26 | AGND — Analog ground |
| Broche 27 | AVDD — Analog supply |
| Broche 28 | LINEIN_L — Line input left (or MIC) |
| Broche 29 | LINEIN_R — Line input right (or MIC) |
| Broche 30 | MIC_BIAS — Microphone bias |
| Broche 31 | GBUF — Common-mode buffer for line inputs |
| Broche 32 | RCAP — Reference voltage bypass capacitor |
| Broche 33 | AGND — Analog ground |
| Broche 34 | AVDD — Analog supply |
| Broche 35 | LINEOUT_L — Line output left (DAC) |
| Broche 36 | LINEOUT_R — Line output right (DAC) |
| Broche 37 | HP_GND — Headphone ground reference |
| Broche 38 | HPOUT_L — Headphone output left |
| Broche 39 | HPOUT_R — Headphone output right |
| Broche 40 | AGND — Analog ground |
| Broche 41 | AVDD — Analog supply |
| Broche 42 | DGND — Digital ground |
| Broche 43 | DVDD — Digital supply (CVDD 1.25 V) |
| Broche 44 | TEST — Test pin (per datasheet) |
| Broche 45 | GPIO5 — General-purpose I/O 5 |
| Broche 46 | GPIO6 — General-purpose I/O 6 |
| Broche 47 | GPIO7 — General-purpose I/O 7 |
| Broche 48 | XTEST — Reserved test pin (per datasheet) |
Applications typiques
VS1073A-L convient pour 6 applications: MP3 / Ogg / FLAC playback module, Voice recorder / dictation device, Two-way intercom / doorbell panel, USB audio adapter / streaming dongle, Industrial HMI with audio prompts, Embedded audio playback in IoT devices.
MP3 / Ogg / FLAC playback module
The VS1073A-L is ideal for standalone playback modules because it integrates a stereo 16-bit DAC, a hardware MP3/Ogg/FLAC/WAV decoder, and a high-level SCI command set. Per VLSI's product page, the host MCU streams compressed bytes over SPI while the on-chip DSP does the decompression, freeing the host for user interface work. The 1.25 V CVDD rail must come from a dedicated LDO per the VS10xx comparison app note. Sample rates from 8 kHz to 48 kHz cover all common consumer music files, and the LQFP-48 footprint is straightforward to route on a 2-layer board.
Recommandé
Voice recorder / dictation device
For voice recorder products, the VS1073A-L combines a stereo 16-bit ADC with on-chip Ogg Vorbis, MP3, and FLAC encoders so captured audio can be compressed and stored directly without taxing the host MCU. According to the VLSI product page, the IC supports G.711 u-law, G.711 A-law, and G.722 voice codecs for telephony-grade capture. The 6.144 MHz reference clock gives stable ADC sampling, and the dedicated SDI data path keeps compressed streams isolated from the SCI control bus.
Recommandé
Two-way intercom / doorbell panel
In two-way intercom panels the VS1073A-L handles both playback of stored prompts and capture/transmission of caller audio using the integrated stereo ADC and DSP encoder. Per the VS10xx comparison app note, hardware designs using the VS1073a LQFP-48 pinout stay future-proof across the family with a 12.288 MHz crystal. GPIO pins can drive status LEDs or relay triggers, while UART provides an out-of-band path for diagnostic logs in field-installed units.
Recommandé
USB audio adapter / streaming dongle
The VS1073A-L fits USB audio dongles that need both headphone output (via the on-chip DAC) and microphone input (via the on-chip ADC). Its I2S interface, listed by TME alongside GPIO/SPI/UART, lets a companion USB audio bridge stream PCM directly to the DAC. Because MP3/Ogg/FLAC decoding runs on the internal DSP, the host can remain a low-cost Cortex-M0 without hardware accelerators.
Recommandé
Industrial HMI with audio prompts
Industrial HMIs benefit from the VS1073A-L's ability to decode FLAC and MP3 prompts with high SNR while the host PLC handles the touch panel logic. The LQFP-48 package and SPI control interface make it easy to mount alongside an MCU on a backplane PCB. Per VLSI's datasheet, the analog and digital grounds are kept separate inside the IC, which helps reject the digital switching noise typical of industrial power environments.
Recommandé
Embedded audio playback in IoT devices
Smart-home and IoT sensor hubs use the VS1073A-L as a low-cost audio output stage for alarm tones, voice prompts, and music streaming. According to VLSI's product page, the host MCU only sends compressed bytes over SPI, leaving plenty of headroom for wireless stacks. The 1.25 V CVDD rail integrates cleanly with modern 1.2 V core regulators already present on most IoT SoCs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour VS1073A-L — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | VS1063A-L | VS1053B-L | VS1003B-L | VS1053-L | VS1063-L |
|---|---|---|---|---|---|---|
| Package | LQFP-48 (SMD) | LQFP-48 - same | LQFP-48 - same | LQFP-48 - same | LQFP-48 - same | LQFP-48 - same |
| Brand | VLSI Solution | VLSI Solution | VLSI Solution | VLSI Solution | VLSI Solution | VLSI Solution |
| On-chip Encoder | Yes (MP3 / Ogg / FLAC / PCM) | Yes (MP3 / Ogg) | No (decode only) | No (decode only) | No (decode only) | Yes (MP3 / Ogg) |
| FLAC Decode/Encode | Yes | No | No | No | No | No |
| Digital Supply CVDD | 1.25 V | 1.85 V | 1.85 V | 1.85 V | 1.85 V | 1.85 V |
| Reference Clock | 6.144 MHz (12.288 MHz per app note) | 12.288 MHz | 12.288 MHz | 12.288 MHz | 12.288 MHz | 12.288 MHz |
| Host Interface | SPI (SCI + SDI) | SPI (SCI + SDI) | SPI (SCI + SDI) | SPI (SCI + SDI) | SPI (SCI + SDI) | SPI (SCI + SDI) |
| Voice Codecs (G.711/G.722) | Yes (encode + decode) | Yes | Partial | No | Partial | Yes |
Principaux différenciateurs
- Adds FLAC encode and decode on-chip (vs VS1063A-L)
- On-chip encoding pipeline (vs VS1053B-L)
- Lower CVDD aligns with modern SoC rails (vs VS1003B-L)
Notes de conception
The VS1073A-L lowers the digital supply CVDD from 1.85 V (VS1053/VS1063) to 1.25 V. Per the VS10xx comparison app note, designs should add a dedicated low-noise LDO for the CVDD rail rather than sharing the 1.8 V used for the older family, otherwise the part will not boot reliably. Apply AVDD before or simultaneously with CVDD on power-up; XRESET must be held low until both rails are stable. Estimated: the 1.25 V CVDD LDO must source roughly 30-50 mA during MP3 decode at 128 kbps.
Route analog (AGND) and digital (DGND) grounds back to the regulator as separate islands joined only at the IC's AGND/DGND pin pair, per VLSI datasheet layout guidance. Keep the 6.144 MHz crystal traces short (under 5 mm) and place the load capacitors within 2 mm of XTALI/XTALO to avoid jitter that degrades DAC SNR. Decouple AVDD with 10 uF + 100 nF, and CVDD/DVDD with 10 uF + 100 nF, all within 3 mm of the supply pins.
Do not connect GPIO/DSP serial pins to 5 V logic; the VS1073A-L I/O supply is 3.3 V maximum per the datasheet, and exceeding it will damage the ESD cells. Do not omit the SDI compressed-audio path even if only using the SCI control path - the IC expects compressed bytes on SDI during MP3 decode. For VS1053/VS1063 migration, remember that CVDD level differs from VS1073A-L; reusing a 1.8 V rail will not work.
Place the analog line-input coupling capacitors and the headphone-output AC-coupling caps as close as possible to the LINEOUT/HPOUT pins to keep ground return paths short. The GBUF pin needs a 1 uF (typ.) bypass to AGND; do not leave it floating or the line inputs will saturate. Route headphone traces as a differential pair on the PCB to reject common-mode noise.
Informations de conformité
RoHS status inferred from VLSI webstore listing the part as a current-production IC. AEC-Q100 is not applicable for a consumer/industrial audio codec. Halogen-free and conflict-minerals disclosures are not published on the product page; set to unknown per data authenticity rules.
