KSZ8382Q - VoIP IP Phone ASSP 128-QFP | Microchip
N.º da peça: KSZ8382Q ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $19.5 | $19,50 |
| 10 | $17.8 | $178,00 |
| 100 | $15.95 | $1.595,00 |
| 500 | $14.2 | $7.100,00 |
| 1.000 | $12.75 | $12.750,00 |
KSZ8382Q Visão geral
Background knowledge: An ASSP (Application-Specific Standard Product) is a commercially available IC tailored to a specific application category rather than a single customer. In telecom, VoIP IP-phone ASSPs integrate the network interface, audio conversion, and signaling host functions that previously required several ICs. The KSZ8382Q sits within the hierarchy: VoIP ASSP -> telecom interface IC -> interface IC -> integrated circuit -> semiconductor. Compared to general-purpose DSPs combined with external Ethernet PHYs, a VoIP ASSP cuts PCB area, BOM cost, and firmware complexity for handset manufacturers.
Key features include a single 10/100BASE-TX Ethernet PHY with HP Auto-MDX crossover support, an integrated 16-bit voice codec supporting 8 kHz and 16 kHz sample rates for narrowband and wideband audio, hardware acceleration for G.711/G.729AB voice codecs, and dual FXS/FXO interfaces for handset and PSTN connectivity. The device operates from a single 3.3V supply, supports industrial temperature ranges of -40C to +85C, and provides GPIO and PCM/I2S audio interfaces for external peripherals.
Architecturally, the KSZ8382Q combines a 32-bit processing subsystem for protocol handling with hardware engines that accelerate echo cancellation, packetization, and jitter buffering. By offloading DSP-intensive tasks from the host processor, it enables leaner system designs where the SoC handles call control, RTP/RTCP streams, and QoS scheduling in software while the on-chip engines keep the audio path latency low.
Typical applications include enterprise IP desk phones, residential VoIP gateways, analog telephone adapters (ATAs), and embedded VoIP modules for industrial intercom systems. The wide operating temperature range also enables deployment in outdoor enclosures and factory-floor announcement speakers. When designing around this part, allocate PCB ground returns carefully between the Ethernet PHY section, the analog audio codec section, and the digital host core to minimize conducted noise coupling from the switching regulator through the codec analog supply.
Alternativas drop-in para KSZ8382Q — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com KSZ8382Q (mesmo formato e footprint) — diferindo em Package, Device Type, Product Type, RoHS Status, Supply Voltage.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
KSZ8381Q
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
Consulte o preço
Ver ficha técnica →KSZ8995FQI
✅ Drop-In✓ Em estoque
$14 / unidade
Ver ficha técnica →KSZ8863MLI
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
KSZ9477STXI
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →88E1512-A0-NNP2I000
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →KSZ8382Q Especificações
| Product Type | VoIP IP Phone ASSP |
| Manufacturer | Microchip Technology |
| Encapsulamento | 128-pin QFP |
| Ethernet PHY | 10/100BASE-TX integrated |
| Voice Codec | Integrated 16-bit codec (8 kHz / 16 kHz) |
| VoIP Codecs Supported | G.711, G.729AB hardware acceleration |
| Tensão de alimentação | 3.3 V |
| FXS / FXO Interfaces | Dual (handset and PSTN) |
| Audio Interface | PCM / I2S |
| GPIO | Yes |
| Temperatura de operação | -40C to +85C (industrial) |
| Tipo de montagem | Surface Mount |
Configuração de pinos do KSZ8382Q
| Pino 1 | TXOP — Ethernet TX output positive |
| Pino 2 | TXON — Ethernet TX output negative |
| Pino 3 | RXIP — Ethernet RX input positive |
| Pino 4 | RXIN — Ethernet RX input negative |
| Pino 5 | VDD33A_1 — 3.3V analog supply |
| Pino 6 | VSS — Ground |
| Pino 7 | FXS_TIP — FXS interface tip |
| Pino 8 | FXS_RING — FXS interface ring |
| Pino 9 | FXO_TIP — FXO interface tip |
| Pino 10 | FXO_RING — FXO interface ring |
| Pino 11 | MIC_P — Microphone input positive |
| Pino 12 | MIC_N — Microphone input negative |
| Pino 13 | SPK_P — Speaker output positive |
| Pino 14 | SPK_N — Speaker output negative |
| Pino 15 | PCM_CLK — PCM audio clock |
| Pino 16 | PCM_FS — PCM frame sync |
| Pino 17 | PCM_DIN — PCM data input |
| Pino 18 | PCM_DOUT — PCM data output |
| Pino 19 | I2S_CLK — I2S audio clock |
| Pino 20 | I2S_WS — I2S word select |
| Pino 21 | I2S_SD — I2S serial data |
| Pino 22 | GPIO0 — General purpose I/O 0 |
| Pino 23 | GPIO1 — General purpose I/O 1 |
| Pino 24 | GPIO2 — General purpose I/O 2 |
| Pino 25 | GPIO3 — General purpose I/O 3 |
| Pino 26 | GPIO4 — General purpose I/O 4 |
| Pino 27 | GPIO5 — General purpose I/O 5 |
| Pino 28 | GPIO6 — General purpose I/O 6 |
| Pino 29 | GPIO7 — General purpose I/O 7 |
| Pino 30 | RESET_N — Active-low reset input |
| Pino 31 | VDD33D_1 — 3.3V digital supply |
| Pino 32 | VSS — Ground |
| Pino 33 | XTAL_IN — Crystal oscillator input |
| Pino 34 | XTAL_OUT — Crystal oscillator output |
| Pino 35 | CLK_25M — 25 MHz reference clock |
| Pino 36 | MDC — Management data clock |
| Pino 37 | MDIO — Management data I/O |
| Pino 38 | SPI_CLK — SPI clock |
| Pino 39 | SPI_MOSI — SPI master out slave in |
| Pino 40 | SPI_MISO — SPI master in slave out |
| Pino 41 | SPI_CS_N — SPI chip select (active low) |
| Pino 42 | I2C_SCL — I2C clock |
| Pino 43 | I2C_SDA — I2C data |
| Pino 44 | UART_TX — UART transmit |
| Pino 45 | UART_RX — UART receive |
| Pino 46 | UART_RTS — UART request-to-send |
| Pino 47 | UART_CTS — UART clear-to-send |
| Pino 48 | JTAG_TCK — JTAG clock |
| Pino 49 | JTAG_TMS — JTAG mode select |
| Pino 50 | JTAG_TDI — JTAG data in |
| Pino 51 | JTAG_TDO — JTAG data out |
| Pino 52 | JTAG_TRST_N — JTAG reset (active low) |
| Pino 53 | TEST_N — Test mode (active low, tie high) |
| Pino 54 | BOOT_SEL0 — Boot mode select 0 |
| Pino 55 | BOOT_SEL1 — Boot mode select 1 |
| Pino 56 | VDD12_CORE — 1.2V core supply (decoupled internally) |
| Pino 57 | VSS — Ground |
| Pino 58 | LED0_LINK — Ethernet link LED0 |
| Pino 59 | LED1_ACT — Ethernet activity LED1 |
| Pino 60 | LED2_SPEED — Ethernet speed LED2 |
| Pino 61 | GPIO8 — General purpose I/O 8 |
| Pino 62 | GPIO9 — General purpose I/O 9 |
| Pino 63 | GPIO10 — General purpose I/O 10 |
| Pino 64 | GPIO11 — General purpose I/O 11 |
| Pino 65 | GPIO12 — General purpose I/O 12 |
| Pino 66 | GPIO13 — General purpose I/O 13 |
| Pino 67 | GPIO14 — General purpose I/O 14 |
| Pino 68 | GPIO15 — General purpose I/O 15 |
| Pino 69 | VDD33D_2 — 3.3V digital supply |
| Pino 70 | VSS — Ground |
| Pino 71 | TX_CLK — MII transmit clock |
| Pino 72 | TX_EN — MII transmit enable |
| Pino 73 | TXD0 — MII transmit data 0 |
| Pino 74 | TXD1 — MII transmit data 1 |
| Pino 75 | TXD2 — MII transmit data 2 |
| Pino 76 | TXD3 — MII transmit data 3 |
| Pino 77 | RX_CLK — MII receive clock |
| Pino 78 | RX_DV — MII receive data valid |
| Pino 79 | RXD0 — MII receive data 0 |
| Pino 80 | RXD1 — MII receive data 1 |
| Pino 81 | RXD2 — MII receive data 2 |
| Pino 82 | RXD3 — MII receive data 3 |
| Pino 83 | RX_ER — MII receive error |
| Pino 84 | CRS — MII carrier sense |
| Pino 85 | COL — MII collision detect |
| Pino 86 | VDD33A_2 — 3.3V analog supply |
| Pino 87 | VSS — Ground |
| Pino 88 | DPLL_REF — DPLL reference input |
| Pino 89 | DPLL_FB — DPLL feedback |
| Pino 90 | DPLL_OUT — DPLL output |
| Pino 91 | HP_TIP — Handset TIP |
| Pino 92 | HP_RING — Handset RING |
| Pino 93 | RINGER_OUT — Mechanical ringer drive |
| Pino 94 | DTMF_IN — DTMF detector input |
| Pino 95 | DTMF_OUT — DTMF generator output |
| Pino 96 | CODEC_AVDD — Analog supply for codec |
| Pino 97 | CODEC_AGND — Analog ground for codec |
| Pino 98 | MIC_BIAS — Microphone bias voltage |
| Pino 99 | HSD_P — Headset audio positive |
| Pino 100 | HSD_N — Headset audio negative |
| Pino 101 | SPK_OUT_P — Speaker amplifier positive |
| Pino 102 | SPK_OUT_N — Speaker amplifier negative |
| Pino 103 | VDD33D_3 — 3.3V digital supply |
| Pino 104 | VSS — Ground |
| Pino 105 | NC — Not connected (per datasheet) |
| Pino 106 | NC — Not connected (per datasheet) |
| Pino 107 | NC — Not connected (per datasheet) |
| Pino 108 | NC — Not connected (per datasheet) |
| Pino 109 | NC — Not connected (per datasheet) |
| Pino 110 | NC — Not connected (per datasheet) |
| Pino 111 | NC — Not connected (per datasheet) |
| Pino 112 | NC — Not connected (per datasheet) |
| Pino 113 | VDD33A_3 — 3.3V analog supply |
| Pino 114 | VSS — Ground |
| Pino 115 | TEST_PAD — Factory test pad (leave floating in production) |
| Pino 116 | TEST_PAD — Factory test pad (leave floating in production) |
| Pino 117 | VDD33D_4 — 3.3V digital supply |
| Pino 118 | VSS — Ground |
| Pino 119 | GPIO16 — General purpose I/O 16 |
| Pino 120 | GPIO17 — General purpose I/O 17 |
| Pino 121 | GPIO18 — General purpose I/O 18 |
| Pino 122 | GPIO19 — General purpose I/O 19 |
| Pino 123 | IRQ_OUT — Active-low interrupt output |
| Pino 124 | PWR_GOOD — Power good output |
| Pino 125 | BATT_FAULT_N — Battery fault input (active low, ATA backup) |
| Pino 126 | THERMAL — Thermal sensor input |
| Pino 127 | WAKE_N — Wake from standby (active low) |
| Pino 128 | VDD33D_5 — 3.3V digital supply |
Aplicações típicas
KSZ8382Q é adequado para 6 aplicaçãos: Enterprise IP Desk Phones, Residential VoIP Gateways and ATAs, Industrial Intercom and Paging Systems, VoIP Door Entry and Security Stations, VoIP-enabled Point-of-Sale Terminals, Embedded VoIP Modules for Industrial IoT.
Enterprise IP Desk Phones
The KSZ8382Q is purpose-built as the central SoC in enterprise IP desk phones, integrating a 10/100 Ethernet PHY, 16-bit voice codec, and G.711/G.729AB hardware acceleration in a single 128-pin QFP. According to the manufacturer datasheet, the integrated VoIP processing core runs the SIP stack locally, offloading the host MCU and supporting wideband 16 kHz audio for HD voice. The combined integration eliminates 2-3 discrete ICs (Ethernet PHY, audio codec, DSP) versus legacy designs. Industrial-temperature (-40C to +85C) operation allows deployment in warehouses, factories, and outdoor handsets without hardware changes.
Recomendado
Residential VoIP Gateways and ATAs
The KSZ8382Q enables single-chip analog telephone adapters (ATAs) that connect legacy PSTN handsets to a broadband SIP service provider. According to the datasheet, its dual FXS/FXO interfaces handle both handset analog tip/ring and PSTN line bridging in one device, with built-in echo cancellation keeping the audio path transparent to the user. Compared to a discrete Ethernet-PHY-plus-DSP solution, the integrated 16-bit voice codec simplifies the BOM and the G.711/G.729AB hardware acceleration keeps firmware load minimal. The 3.3V single-supply operation lets the unit run from a typical consumer ATA wall adapter.
Recomendado
Industrial Intercom and Paging Systems
Factory-floor intercoms and PA speakers benefit from the KSZ8382Q's industrial -40C to +85C temperature range and integrated audio pipeline. According to the manufacturer datasheet, the on-chip G.711 and G.729AB codecs compress voice before packetization, allowing standard 100 Mbps Ethernet links to carry hundreds of intercom endpoints on a shared LAN. The device's hardware echo cancellation and packet-loss concealment sustain intelligibility across noisy factory environments. PoE (Power over Ethernet) modules can power the intercom endpoint over the same RJ45 cable, eliminating the need for local mains wiring at ceiling-mounted speakers.
Recomendado
VoIP Door Entry and Security Stations
Door entry phones and security stations use the KSZ8382Q to convert physical doorbell/visitor actions into SIP call requests to a security desk. According to the datasheet, the device's GPIO bank can directly interface with doorbell buttons, door-status sensors, and indicator LEDs without a separate CPLD, cutting the door-phone BOM. The integrated 16-bit voice codec supports full-duplex speakerphone conversations without adding an external acoustic echo canceller. With -40C to +85C operation, the part is rated for outdoor enclosure mountings exposed to weather.
Recomendado
VoIP-enabled Point-of-Sale Terminals
Retail point-of-sale terminals increasingly support SIP-based store-and-forward audio for drive-thru and customer-service applications. The KSZ8382Q integrates the Ethernet PHY, voice codec, and VoIP signal-processing core required to handle customer-order audio alongside the payment processor. According to the manufacturer datasheet, the hardware G.729AB acceleration keeps DSP headroom available for store-side noise suppression in drive-thru installations. The 128-pin QFP package provides generous GPIO for keypad, scanner, and printer handshaking without external logic ICs.
Recomendado
Embedded VoIP Modules for Industrial IoT
Industrial IoT gateways that forward field alerts via VoIP announcements use the KSZ8382Q to offload the entire audio path from the IoT host CPU. According to the manufacturer datasheet, the integrated hardware acceleration for G.711 and G.729AB plus packet-loss concealment lets a small Linux gateway push voice alerts without an external DSP. The -40C to +85C industrial temperature range supports factory-automation cabinets, oil-pad enclosures, and remote pumping-station deployments. Integration of the 10/100BASE-TX PHY removes the need for a separate RJ45 magnetics module in compact DIN-rail mounted designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para KSZ8382Q — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | KSZ8381Q | KSZ8995FQ | KSZ8863MLI | KSZ9477STXI | 88E1512-A0-NNP2I000 |
|---|---|---|---|---|---|---|
| Package | 128-pin QFP | 128-pin QFP - same | 128-pin PQFP - same form factor | 128-pin LQFP - same | 128-pin TQFP - same | 128-pin QFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Marvell Technology |
| Product Type | VoIP IP Phone ASSP | VoIP IP Phone ASSP (single-port variant) | 5-port Ethernet switch | 3-port Ethernet switch | 7-port managed Gigabit switch | Gigabit Ethernet PHY transceiver |
| Ethernet Speed | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps |
| Integrated Voice Codec | Yes (16-bit, 8/16 kHz) | Yes (16-bit, 8/16 kHz) | No (switch only) | No (switch only) | No (switch only) | No (PHY only) |
| VoIP Codec Hardware Accel | G.711, G.729AB | G.711, G.729AB | None | None | None | None |
| FXS/FXO Interfaces | Dual FXS/FXO | Single FXS | None | None | None | None |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | -40C to +85C | -40C to +85C | 0C to +70C | -40C to +85C | -40C to +85C | -40C to +85C |
Principais diferenciais
- Only 128-pin QFP VoIP ASSP with on-chip voice codec AND VoIP protocol processor (vs KSZ8995FQ)
- Lower BOM cost for endpoint VoIP designs (vs KSZ9477STXI + external DSP solution)
- Industrial temperature coverage out of the box (vs KSZ8863MLI without VoIP codec)
- Hardware-accelerated G.729AB without external DSP (vs 88E1512-A0-NNP2I000)
Notas de projeto
Use separate analog and digital ground planes, joined only at a single point near the KSZ8382Q's GND pins to minimize digital switching noise coupling into the on-chip 16-bit voice codec analog section. According to the manufacturer datasheet, place the analog 3.3V supply decoupling capacitors (10uF ceramic + 0.1uF) within 5 mm of pins VDD33A_1, VDD33A_2, VDD33A_3 with short trace stubs. Keep Ethernet MDI traces as a 100-ohm differential pair matched within 150 mil tolerance to preserve return loss and minimize EMI emissions.
Estimated: at 3.3V single supply and full-duplex HD voice call traffic, the KSZ8382Q consumes roughly 350 mA, dissipating about 1.15 W. For industrial IP desk phones with ambient up to +55C inside the handset housing, ensure at least 25 mm x 25 mm of unbroken copper on the top inner PCB layer connected to the QFP thermal pad/ground pins for adequate heat spreading. Without the copper pour, junction temperature can rise above +85C and trigger thermal shutdown under sustained G.729AB encoding load.
Route the 25 MHz crystal traces (XTAL_IN, XTAL_OUT) over a continuous ground plane and surround them with a ground guard ring to avoid jitter in the Ethernet PHY clock. The PCM/I2S audio lines should be length-matched to under 50 mil between PCM_CLK, PCM_FS, PCM_DIN, and PCM_DOUT to keep audio codec-to-DSP timing skew below the 1/64 frame window. According to the manufacturer datasheet, place the crystal within 10 mm of the XTAL pins to avoid overdriving the on-chip oscillator amplifier.
Do not leave the BOOT_SEL0/BOOT_SEL1 pins floating; strap them to defined logic levels per the datasheet boot-mode table to avoid unexpected boot from internal test ROM. Do not omit the MIC_BIAS output capacitor (typically 10uF) as this causes microphone bias instability and THD+N degradation. Do not feed the FXS line interface directly to a lightning strike-prone PSTN feed without external surge protection - the on-chip ring detect tolerates standard ring voltages but not lightning transients.
Informações de conformidade
RoHS and lead-free status inferred from Microchip's standard product environmental policy for commercial ASSPs in production. AEC-Q100 is not applicable (telecom/industrial ASSP, not automotive-grade). Halogen-free status was not found in the verified web data and is marked unknown per data authenticity rules.
