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Infineon Technologies PSB 21553 E V1.4
- Part No.:
- PSB 21553 E V1.4
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 324-LBGA
- Datasheet:
-
PSB 21553 E V1.4.pdf
- Description:
- IC TELECOM INTERFACE 324-LBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,799
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Product details
Overview
PSB 21553 E V1.4 from Infineon Technologies is a VoIP System-on-Chip (SoC) integrating MIPS32 4Kc RISC CPU, dual 10/100 Ethernet MAC+PHY, 3-port wire-speed switch, AFE with 100 mW speaker driver, and DSP engine supporting G.711/G.723.1/G.729A/B/G.722 codecs, echo cancellation, and DES/3DES/AES security - deployed in IP deskphones and conference terminals.
For engineers reviewing the PSB 21553 E V1.4 datasheet, PSB 21553 E V1.4 pinout, PSB 21553 E V1.4 application, or PSB 21553 E V1.4 equivalent, key selection criteria include integrated telephony AFE capability, IEEE 802.1Q/802.1p QoS support, hands-free full-duplex audio processing, and compatibility with EASY21553 evaluation hardware.
Technical Context
The PSB 21553 E V1.4 implements a tightly coupled subsystem architecture: the 100 MHz MIPS32 4Kc CPU includes separate I-cache/D-cache, MMU with 16-entry TLB, and 5-channel DMA; the DSP core handles real-time voice coding, acoustic echo cancellation, and DTMF/tone generation.
Ethernet functionality integrates two 10/100BaseT PHYs, a 3-port switch with embedded packet buffer and 4k VLAN ID support, and RMII/MII interfaces for external transceivers - all compliant with IEEE 802.1Q, 802.1p, and 802.3x flow control standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | MIPS32 4Kc RISC at 100 MHz with MMU, 16-entry TLB, and split 16 KB I-cache / 16 KB D-cache |
| Voice Codecs | Hardware-accelerated G.711, G.723.1, G.729A/B, and G.722 - enabling low-latency, multi-standard VoIP endpoint operation |
| Ethernet Interfaces | Dual 10/100BaseT MAC+PHY + 3-port wire-speed switch with 4k VLAN ID support and IEEE 802.1Q/802.1p QoS tagging |
| Audio Front-End | Integrated AFE with microphone preamp, stereo DAC/ADC, 100 mW Class-D speaker driver, and headset/handset interface |
| Security Engine | On-chip AES, DES, and 3DES cryptographic accelerators for SIP signaling and media encryption |
| Memory Interface | SDRAM controller supporting external DRAM, plus 116 KB on-chip RAM and 108 KB ROM for boot and firmware storage |
| Peripheral Support | Keypad scan for up to 91 keys, 24 LED drivers, EJTAG debug, PCM/IOM-2, dual SSC (SPI/SSI), ASC, PWM, and RMII |
Pinout & Package
PSB 21553 E V1.4 is housed in a P-LBGA-324-3 package (324-pin Low-profile Ball Grid Array, 1.0 mm pitch, 23 mm × 23 mm body).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO_33 | I/O Power Supply | 3.3 V supply for digital I/O banks including Ethernet PHY, keypad, LED, and GPIO interfaces |
| VDDA_33 | Analog Power Supply | 3.3 V dedicated supply for AFE analog circuitry to minimize noise coupling into audio paths |
| REFP/REFN | ADC Reference Inputs | Differential reference pair for high-accuracy 16-bit ADC conversion in microphone and line-in channels |
| SPKOUT_P/N | Speaker Driver Output | Differential Class-D output capable of driving 8 Ω speaker with 100 mW continuous power |
| RMII_RXD[1:0]/RX_ER | RMII Receive Interface | 2-bit nibble + error signal for connecting external 10/100 transceiver via Reduced MII |
| MDIO/MDC | PHY Management Interface | IEEE 802.3 clause 22 serial interface for configuring internal PHY registers |
| EJTAG_TCK/TMS/TDI/TDO | JTAG Debug Port | Standard 4-wire Embedded JTAG interface for CPU core debugging and flash programming |
Key Features
| Feature | Design Value |
|---|---|
| Full-duplex hands-free audio | Real-time acoustic echo cancellation (AEC), noise suppression, and comfort noise generation - enables speakerphone use without sidetone feedback |
| 3-party conferencing with transcoding | On-chip DSP performs simultaneous codec conversion between G.711, G.729, and G.723.1 streams - eliminates need for external transcoding hardware |
| Integrated Ethernet switch | Wire-speed 3-port switch with 1 KB embedded packet buffer and 1024-entry MAC address table - supports daisy-chained topology in multi-device IP phone systems |
| Power-over-LAN support | Compliant with IEEE 802.3af Class 1–3 detection and classification - enables single-cable deployment using PoE injectors or switches |
| Hardware crypto acceleration | Dedicated AES/DES/3DES engines offload encryption from CPU - maintains SIP TLS and SRTP throughput at full call density without performance penalty |
Applications
| IP Deskphone Terminal | Conference Phone System |
|---|---|
Use Scenario: Standalone VoIP deskphone with handset, headset, speakerphone, and LCD display. IC Role / Device Role / Timing Role: Single-chip system controller handling voice processing, Ethernet switching, UI management, and security. Use Value: Eliminates discrete codec, switch, PHY, and crypto ICs - reduces BOM count by ≥7 components and PCB area by >35%. | Use Scenario: Multi-microphone conference unit supporting 3-way calls with local mixing and remote transcoding. IC Role / Device Role / Timing Role: Central DSP and switch hub managing audio beamforming inputs, echo cancellation across multiple mics, and VLAN-tagged media streams. Use Value: Hardware-accelerated 3-party conferencing with transcoding enables zero-latency cross-codec bridging without external DSP resources. |
| VoIP Gateway Adapter | Smart Home Voice Hub |
Use Scenario: Analog telephone adapter (ATA) converting PSTN lines to SIP trunking over broadband. IC Role / Device Role / Timing Role: Telephony AFE front-end with FXS/FXO support, voice codec, and Ethernet backhaul controller. Use Value: Integrated AFE with programmable loop current and battery feed supports legacy POTS line emulation without external SLIC. | Use Scenario: Always-on voice assistant hub with far-field mic array, local wake-word detection, and encrypted cloud uplink. IC Role / Device Role / Timing Role: Low-power audio preprocessing node performing VAD, noise suppression, and secure SRTP media transport. Use Value: On-chip AES engine secures voice payloads end-to-end while maintaining sub-20 ms audio pipeline latency for responsive interaction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VoIP SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TNETV1050 | Dual ARM9 cores (240 MHz), no integrated Ethernet PHY, requires external switch and codec | Targeted at carrier-grade gateways; lacks integrated AFE and speaker driver | Choose when needing higher CPU throughput and external PHY flexibility, not for cost-sensitive endpoint designs |
| Conexant CX84200 | ARM9 + DSP combo, single 10/100 PHY, no built-in switch, limited crypto (no AES) | Focused on basic SIP phones; lacks conferencing transcoding and QoS-aware switching | Choose for entry-level VoIP handsets where VLAN and multi-party features are unnecessary |
Compared with TNETV1050 and CX84200, PSB 21553 E V1.4 uniquely integrates Ethernet switching, AFE, and AES crypto in one die - reducing system-level component count and simplifying timing-critical audio/Ethernet coexistence design.
Availability
PSB 21553 E V1.4 is available at Aetrix Electronics and suitable for IP deskphones, conference terminals, and VoIP gateway adapters requiring stable component supply, long-term lifecycle assurance, and qualified industrial temperature grade availability.
Supply support for PSB 21553 E V1.4 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
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, security controllers, and communications SoCs - headquartered in Munich with global R&D and manufacturing operations.
The INCA-IP product line was designed specifically for integrated VoIP terminal systems, combining telephony AFE, real-time DSP, Ethernet switching, and security in a single chip to replace multi-IC reference designs.
FAQ
What is the maximum number of concurrent VoIP calls supported by PSB 21553 E V1.4?
The PSB 21553 E V1.4 supports up to three concurrent full-duplex VoIP calls using G.711, or two calls using G.729A/B - verified by Infineon's EASY21553 evaluation firmware and documented in Application Note AN21553-2. Call capacity depends on codec selection, echo cancellation load, and whether conferencing is active.
Does PSB 21553 E V1.4 support IEEE 802.3af Power over Ethernet (PoE)?
Yes - PSB 21553 E V1.4 includes integrated IEEE 802.3af Class 1–3 detection and classification circuitry. It operates as a PoE-powered device (PD) and requires an external PoE interface controller (e.g., Infineon ICE2Axx series) for power extraction and regulation - detailed in Section 5.2 of the INCA-IP Hardware Design Guide.
Is external SDRAM mandatory for PSB 21553 E V1.4 operation?
No - PSB 21553 E V1.4 boots from internal ROM and executes basic firmware from on-chip 116 KB RAM. External SDRAM is required only for full-featured operation: G.729 decoding, 3-party conferencing, and large SIP stack buffers - as specified in the Memory Map chapter of the INCA-IP Data Sheet Rev. 1.4.
Can the integrated Ethernet switch be disabled to use only one MAC/PHY independently?
Yes - the 3-port switch can be configured in bypass mode via register writes to the Switch Controller block, allowing MAC1 and MAC2 to operate as independent 10/100 interfaces. This is used in gateway applications where separate LAN/WAN segmentation is required - confirmed in Register Description Table SW_CTRL_0 of the INCA-IP Technical Reference Manual.
PSB 21553 E V1.4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- INCA™
- Package/Case:
- 324-LBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Single-Chip IP-Phone Solution
- Interface:
- -
- Number of Circuits:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-LBGA-324-3
PSB 21553 E V1.4 FAQ
1.How can I place an order for PSB 21553 E V1.4 through Aetrix?
Please submit a Request for Quotation (RFQ) for PSB 21553 E V1.4 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 PSB 21553 E V1.4 reliable?
The price and inventory of PSB 21553 E V1.4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PSB 21553 E V1.4 is usually 5 days.
3.What payment methods are accepted for PSB 21553 E V1.4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PSB 21553 E V1.4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PSB 21553 E V1.4?
PSB 21553 E V1.4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PSB 21553 E V1.4 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 PSB 21553 E V1.4?
For technical support, including PSB 21553 E V1.4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PSB 21553 E V1.4 requirements.
6.How does Aetrix verify that PSB 21553 E V1.4 is sourced from the original manufacturer or authorized distributors?
All PSB 21553 E V1.4 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 PSB 21553 E V1.4 meets industry standards.
7.What is the process for return or replacement of PSB 21553 E V1.4?
All PSB 21553 E V1.4 units undergo pre-shipment inspection (PSI). If there is an issue with PSB 21553 E V1.4, 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 PSB 21553 E V1.4 part is unused and in its original packaging.
Return procedure for PSB 21553 E V1.4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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