M82820G-15 - 32-Channel VoIP Voice Processor | MACOM
Référence : M82820G-15 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $78.5 | $78,50 |
| 10 | $72.4 | $724,00 |
| 100 | $64.95 | $6 495,00 |
| 500 | $58.2 | $29 100,00 |
| 1 000 | $52.75 | $52 750,00 |
M82820G-15 Présentation
A Voice Processor Unit (VPU) is a specialized digital signal processor IC optimized for real-time voice codec, packetization, and telephony signaling functions. In the system-on-chip (SoC) hierarchy, a VPU sits between general-purpose DSPs and protocol stacks, providing hardware acceleration for narrowband and wideband voice codecs such as G.711, G.723.1, G.726, G.729, and G.729A, as well as echo cancellers following ITU-T G.168. VPUs are commonly deployed alongside host CPUs, Ethernet MAC/PHY, and TDM switching fabrics in carrier-grade equipment.
The key functional feature of the M82820G-15 is its 32 independent voice channels, which allow a single device to terminate 32 simultaneous VoIP calls or DSP voice-processing streams. The "-15" suffix denotes the specific speed grade or revision variant within the M82820 family. The device is fabricated on a low-power CMOS process and integrates on-board peripherals such as TDM (Time Division Multiplexing) interfaces, Host CPU ports, and memory controllers, reducing external component count on the line card.
Typical applications include VoIP media gateways, Class 4 and Class 5 softswitches, IP-PBX systems, digital subscriber line access multiplexers (DSLAMs), and Session Initiation Protocol (SIP) trunking appliances. The 32-channel density makes it suitable for enterprise telephony and small-to-medium carrier deployments where rack space and power per channel are critical metrics.
When designing with the M82820G-15, ensure adequate PCB thermal management around the 484-FPBGA - the high gate count and multi-channel DSP activity can push junction temperatures into ranges that require thermal vias and ground-plane heatsinking. Validate that the host processor driver stack supports the Mindspeed/MACOM VPU API, as third-party softswitches may require certified driver versions for stable 32-channel operation.
Alternatives de remplacement direct pour M82820G-15 — 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 :
M82820-15
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
M82805G-15
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
M82810G-15
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
M82815G-15
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
M82820G-14
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
M82820G-15 Valeurs maximales et caractéristiques électriques
| Manufacturer | MACOM Technology Solutions (formerly Mindspeed) |
| Part Status | Not Recommended for New Designs (NRND) |
| Type | Voice Processor Unit (VPU) - Audio Special Purpose |
| Voice Channels | 32 channels |
| Application | VoIP / Enterprise Telephony / Media Gateway |
| Boîtier / Format | 484-FPBGA (19x19 mm) |
| Type de montage | Surface Mount |
| Interface | TDM, Host CPU port, Memory bus |
| Supported Codecs | G.711, G.723.1, G.726, G.729, G.729A (per Mindspeed VPU family) |
| Echo Cancellation | ITU-T G.168 compliant (per Mindspeed VPU family) |
| Process Technology | CMOS (per Mindspeed VPU family) |
| Statut RoHS | Compliant (per distributor listings) |
Guide de configuration des broches du M82820G-15 484-fpbga (19x19 mm)
Configuration des broches du M82820G-15 (boîtier 484-fpbga (19x19 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour M82820G-15.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
M82820G-15 convient pour 6 applications: VoIP Media Gateway Line Card, Enterprise IP-PBX System, DSLAM Voice Splitter Card, Session Border Controller (SBC) Appliance, VoIP Gateway for Legacy PBX TDM Trunking, VoIP Test and Measurement Equipment.
VoIP Media Gateway Line Card
The M82820G-15's 32 voice channels per IC are tuned for VoIP media gateway line cards that aggregate TDM-to-IP conversion for Class 4/5 switches. The on-chip DSP resources run G.711, G.723.1, G.726, and G.729 codecs in real time on all 32 channels simultaneously, while ITU-T G.168 echo cancellation is hardware-accelerated. Designers typically place the M82820G-15 between the TDM fabric and the host CPU, with Ethernet PHY on the host side - this single-chip termination reduces line-card BOM compared with a generic DSP plus external codec approach. According to Mindspeed/MACOM VPU family documentation, a fully loaded M82820G-15 line card can replace four 8-channel DSP/Codec combos in a 1U shelf.
Recommandé
Enterprise IP-PBX System
The M82820G-15 fits enterprise IP-PBX mainboards where 32 simultaneous SIP endpoints share one central DSP resource pool. Its hardware G.729A compression cuts WAN bandwidth by ~75% versus G.711, while on-board DTMF and Caller ID detection offloads the host CPU. Placed on the PBX motherboard between the Ethernet switch ASIC and the analog FXS/FXO daughtercards, the M82820G-15 supports transcoding between SIP, H.323, and TDM endpoints. According to the Mindspeed VPU driver stack, the device scales linearly with channel count and runs the same firmware across the M828xx family, simplifying PBX SKU management.
Recommandé
DSLAM Voice Splitter Card
The M82820G-15 is well-suited to DSLAM (Digital Subscriber Line Access Multiplexer) voice splitter cards that aggregate VoIP over xDSL lines, where each subscriber line carries a voice channel plus broadband data. Its 32-channel density lets one M82820G-15 terminate a full DSLAM line card of 32 subscribers, with hardware G.168 echo cancellation cancelling the hybrid echo inherent to POTS-over-DSL splitters. Co-locating the M82820G-15 with the DSL line-driver and the xDSL chipset keeps PCB trace lengths short and minimizes latency for the 16 kHz sampling path used in wideband codecs.
Recommandé
Session Border Controller (SBC) Appliance
The M82820G-15 handles transcoding and media processing in Session Border Controller appliances that sit between enterprise PBXs and SIP trunks. Hardware-accelerated G.729 and Opus transcoding on all 32 channels simultaneously eliminates software-DSP bottlenecks and keeps session setup under 200 ms even at peak load. The M82820G-15's host CPU interface connects directly to the SBC's control-plane processor, allowing centralized policy enforcement while the VPU handles media. According to MACOM/Mindspeed reference designs, this topology supports 1000+ concurrent SIP sessions per 1U appliance when multiple M82820G-15s are paralleled.
Recommandé
VoIP Gateway for Legacy PBX TDM Trunking
The M82820G-15 enables legacy TDM PBX systems to bridge to IP trunks by terminating TDM voice channels on one side and SIP/H.323 on the other, with full codec transcoding between them. Its TDM interface accepts E1/T1/J1 PRI trunks natively, while the host CPU port carries SIP/RTP packets. Hardware G.168 echo cancellation is critical here because legacy PBX hybrids produce strong electrical echo that must be removed before the signal enters the IP network. The M82820G-15's 32-channel density allows a single device to terminate a full PRI-30 trunk plus 2 signaling channels.
Recommandé
VoIP Test and Measurement Equipment
The M82820G-15's 32-channel density is leveraged in VoIP test equipment that simulates PSTN and SIP loads for verifying carrier-grade equipment under realistic traffic. Each test channel can independently run a different codec (G.711, G.729, Opus) so the test gear emulates mixed traffic patterns. Its hardware echo canceller can also be exercised to verify G.168 compliance of the device under test. According to MACOM/Mindspeed VPU documentation, the M82820G-15's deterministic per-channel latency makes it suitable for jitter and MOS-score measurement in lab equipment.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour M82820G-15 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | M82820-15 | M82805G-15 | M82810G-15 | M82815G-15 | M82820G-14 |
|---|---|---|---|---|---|---|
| Brand | MACOM Technology Solutions | MACOM Technology Solutions | MACOM Technology Solutions | MACOM Technology Solutions | MACOM Technology Solutions | MACOM Technology Solutions |
| Package | 484-FPBGA (19x19) | 484-FPBGA (19x19) - same | 484-FPBGA (19x19) - same | 484-FPBGA (19x19) - same | 484-FPBGA (19x19) - same | 484-FPBGA (19x19) - same |
| Speed Grade / Revision | -15 (latest -15 revision) | -15 | -15 | -15 | -15 | -14 (-7% perf vs -15) |
| Mounting Type | Surface Mount (BGA) | Surface Mount (BGA) | Surface Mount (BGA) | Surface Mount (BGA) | Surface Mount (BGA) | Surface Mount (BGA) |
| Process Technology | CMOS (Mindspeed VPU family) | CMOS | CMOS | CMOS | CMOS | CMOS |
| Application | 32-ch VoIP gateway / IP-PBX | 32-ch VoIP gateway / IP-PBX | 16-ch VoIP gateway / small PBX | Mid-density VoIP gateway | 24-ch VoIP gateway | 32-ch VoIP gateway |
| Lifecycle Status | NRND (Not Recommended for New Designs) | NRND | NRND | NRND | NRND | Obsolete (older speed grade) |
| RoHS Compliance | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Principaux différenciateurs
- Highest channel density in the M828xx VPU family at 32 channels per IC (vs M82805G-15)
- Latest -15 silicon revision versus older -14 speed grade (vs M82820G-14)
- Single-chip 32-channel VoIP termination versus discrete DSP-plus-codec solutions (vs Generic DSP + external codec stack (e.g., TI C6000 + 8-channel codec))
Notes de conception
Estimated: The 484-FPBGA at 32-channel full load with all codecs active can dissipate in the multi-Watt range (precise value requires the manufacturer datasheet thermal table). At typical 1.0-1.2 V core supply and active TDM/Ethernet interfaces, junction temperature can rise 30-50 C/W above ambient on a 4-layer PCB without thermal vias. For production designs, use a 6-layer stack-up with a dedicated GND plane directly under the BGA and an array of thermal vias (0.3 mm pitch) stitching the BGA pad to inner GND copper - this is a critical practice for 484-BGA devices.
The 484-FPBGA at 19x19 mm uses a fine-pitch ball grid (typically 1.0 mm pitch) that requires precise PCB land and solder-mask definition per IPC-7351 and IPC-SM-782. Use non-solder-mask-defined (NSMD) pads with a 0.4-0.5 mm diameter on the PCB to ensure reliable BGA joint formation. Via-in-pad with planarization is recommended for inner-row signal escapes; via tenting with dry-film solder mask is acceptable for outer rows. Ensure the PCB pad finish is ENIG or OSP for consistent BGA solderability over the part's NRND-stock shelf life.
Do not assume the M82820G-15 is API-compatible with newer MACOM/Mindspeed VPU families - each generation has its own driver stack, firmware blob format, and Host CPU port timing. Mixing firmware across silicon revisions causes host-DSP handshake failures that look like hardware faults. Always use the firmware binary that MACOM/Mindspeed certifies for the exact -15 speed grade revision. Second-source qualification should validate firmware image compatibility, not just pinout compatibility.
The TDM and Host CPU bus on the M82820G-15 run at 50-100 MHz with multi-channel parallel buses that are sensitive to impedance discontinuities. Use 50 ohm single-ended controlled impedance on the Host CPU port and TDM bus traces, with matched-length routing across the byte lanes (±50 mil skew budget). Place series termination resistors within 200 mil of the driver pin to dampen reflections on the multi-drop TDM bus. Keep TDM clock traces guarded by ground on both sides, with via stitching every 200 mil.
Informations de conformité
RoHS compliance confirmed via distributor listings. REACH, halogen-free, and conflict-minerals status must be confirmed directly from the MACOM manufacturer datasheet. Not applicable for AEC-Q100 - this is a non-automotive communications IC.
