PEF2466HV2.2 - 4-Ch SICOFI Codec/Filter POTS | Infineon
MPN: PEF2466HV2.2 ⚠ آخر فرصة للشراءPEF2466HV2.2 نظرة عامة
A codec/filter IC is a mixed-signal device that performs the analog-to-digital and digital-to-analog conversion plus the band-limiting transmit/receive filtering required to interface voice-band (300 Hz to 3.4 kHz) analog telephone lines to a digital PCM/TDM backplane such as an E1/T1 link. Within the system hierarchy, it sits between the line-side SLIC (Subscriber Line Interface Circuit) and the system-side PCM highway controller, occupying the role of a per-channel voice-band data pump in the access network.
Key features include four fully independent codec/filter channels with 16-bit linear or 8-bit A-law/µ-law companded PCM coding, programmable transmit and receive gain/attenuation in 0.1 dB steps, on-chip hybrid-balance and anti-alias filters, and a serial µC or SPI control interface. The device targets 3.3 V/5 V digital supplies and a +/-5 V analog supply, supporting extended industrial temperature grades typical for outdoor or remote-cabinet telecom deployments.
Architecturally, the PEF2466HV2.2 uses a sigma-delta conversion front-end per channel with dedicated switched-capacitor filters, providing flat group delay across the voice band and very low total harmonic distortion. The integrated µC interface allows per-channel gain calibration and channel-by-channel A-law/µ-law selection, eliminating external DSP overhead for companding and gain control.
Typical applications include 4-channel POTS line cards in central-office switches, integrated access devices (IADs), digital loop carrier (DLC) systems, VoIP media gateways with FXS ports, and PBX line interface modules where four voice channels must be terminated in a single low-footprint device.
When designing with the PEF2466HV2.2, careful attention must be paid to analog/digital ground partitioning, the PCM clock and frame-sync timing relationship, and the decoupling of the +/-5 V analog rails. The part is now in long-term supply under the Infineon (formerly Lantiq) telecom portfolio, and procurement should be planned against documented last-time-buy milestones where applicable.
This page synthesizes distributor pricing, family-mate and same-package alternatives, and practical interface-design notes that complement the manufacturer datasheet with sourcing and migration context.
بدائل مباشرة لـ PEF2466HV2.2 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
PEB2466
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PEF2466HV2.1
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PEF2466HV2.2 الحدود القصوى والخصائص الكهربائية
| الوظيفة | 4-channel Signal Processing Codec/Filter (SICOFI-4-µC) |
| Application | POTS / voice-band codec and filter |
| Number of Channels | 4 |
| Coding | 16-bit linear, 8-bit A-law or µ-law companded PCM |
| Voice Bandwidth | 300 Hz to 3.4 kHz |
| Control Interface | Serial µC / SPI control, parallel PCM data |
| العلبة | P-MQFP-64-1 (64-pin Metric QFP) |
| نوع التركيب | Surface Mount |
تكوين أطراف PEF2466HV2.2
| دبوس 1 | VCCA — Analog supply voltage |
| دبوس 2 | AGND — Analog ground |
| دبوس 3 | VINA1P — Channel 1 positive analog input |
| دبوس 4 | VINA1N — Channel 1 negative analog input |
| دبوس 5 | VOUTA1P — Channel 1 positive analog output |
| دبوس 6 | VOUTA1N — Channel 1 negative analog output |
| دبوس 7 | VREF — Internal voltage reference bypass |
| دبوس 8 | AGND — Analog ground |
| دبوس 9 | VINA2P — Channel 2 positive analog input |
| دبوس 10 | VINA2N — Channel 2 negative analog input |
| دبوس 11 | VOUTA2P — Channel 2 positive analog output |
| دبوس 12 | VOUTA2N — Channel 2 negative analog output |
| دبوس 13 | VCCA — Analog supply voltage |
| دبوس 14 | AGND — Analog ground |
| دبوس 15 | VINA3P — Channel 3 positive analog input |
| دبوس 16 | VINA3N — Channel 3 negative analog input |
| دبوس 17 | VOUTA3P — Channel 3 positive analog output |
| دبوس 18 | VOUTA3N — Channel 3 negative analog output |
| دبوس 19 | AGND — Analog ground |
| دبوس 20 | VINA4P — Channel 4 positive analog input |
| دبوس 21 | VINA4N — Channel 4 negative analog input |
| دبوس 22 | VOUTA4P — Channel 4 positive analog output |
| دبوس 23 | VOUTA4N — Channel 4 negative analog output |
| دبوس 24 | VCCA — Analog supply voltage |
| دبوس 25 | TEST1 — Factory test pin 1 |
| دبوس 26 | TEST2 — Factory test pin 2 |
| دبوس 27 | NC — Not connected (per datasheet) |
| دبوس 28 | DGND — Digital ground |
| دبوس 29 | VCCD — Digital supply voltage |
| دبوس 30 | PCMDOUT — PCM data output to backplane |
| دبوس 31 | PCMDIN — PCM data input from backplane |
| دبوس 32 | PCMK — PCM bit clock input |
| دبوس 33 | PCMSYNC — PCM frame synchronization |
| دبوس 34 | DGND — Digital ground |
| دبوس 35 | CS — Serial µC interface chip select |
| دبوس 36 | SCLK — Serial µC interface clock |
| دبوس 37 | SDI — Serial µC data input |
| دبوس 38 | SDO — Serial µC data output |
| دبوس 39 | INT — Interrupt output to host |
| دبوس 40 | RESET — Hardware reset input (active low) |
| دبوس 41 | VCCD — Digital supply voltage |
| دبوس 42 | DGND — Digital ground |
| دبوس 43 | NC — Not connected (per datasheet) |
| دبوس 44 | NC — Not connected (per datasheet) |
| دبوس 45 | NC — Not connected (per datasheet) |
| دبوس 46 | NC — Not connected (per datasheet) |
| دبوس 47 | NC — Not connected (per datasheet) |
| دبوس 48 | NC — Not connected (per datasheet) |
| دبوس 49 | VCCD — Digital supply voltage |
| دبوس 50 | DGND — Digital ground |
| دبوس 51 | NC — Not connected (per datasheet) |
| دبوس 52 | NC — Not connected (per datasheet) |
| دبوس 53 | NC — Not connected (per datasheet) |
| دبوس 54 | NC — Not connected (per datasheet) |
| دبوس 55 | NC — Not connected (per datasheet) |
| دبوس 56 | NC — Not connected (per datasheet) |
| دبوس 57 | NC — Not connected (per datasheet) |
| دبوس 58 | NC — Not connected (per datasheet) |
| دبوس 59 | NC — Not connected (per datasheet) |
| دبوس 60 | NC — Not connected (per datasheet) |
| دبوس 61 | NC — Not connected (per datasheet) |
| دبوس 62 | NC — Not connected (per datasheet) |
| دبوس 63 | NC — Not connected (per datasheet) |
| دبوس 64 | VCCD — Digital supply voltage |
التطبيقات النموذجية
PEF2466HV2.2 مناسب لـ 6 التطبيقs: Central-Office POTS Line Cards, VoIP Media Gateway FXS Ports, Digital Loop Carrier (DLC) Systems, PBX Line Interface Modules, Integrated Access Devices (IAD), Industrial Telemetry over POTS.
Central-Office POTS Line Cards
The PEF2466HV2.2's four independent codec/filter channels in a single 64-pin QFP make it an efficient voice-band data pump for central-office POTS line cards feeding E1/T1 PCM backplanes. Each channel provides A-law/µ-law companding and programmable gain in 0.1 dB steps, matching the per-port requirements of class-5 switches without external DSP. Compared with discrete codec + filter designs, the PEF2466HV2.2 reduces PCB area by approximately 70% and eliminates component-level calibration because hybrid balance and gain are firmware-trimmed via the on-chip µC interface.
موصى به
VoIP Media Gateway FXS Ports
In VoIP media gateways with FXS (foreign-exchange subscriber) ports, the PEF2466HV2.2 bridges four analog POTS lines to a host DSP running SIP or H.248 stacks. Its 16-bit linear PCM output preserves dynamic range for downstream software echo cancellers and voice-quality enhancement. The chip's parallel PCM data interface simplifies connection to TDM buses commonly used in carrier gateways, and the serial µC port allows per-channel gain calibration without interrupting voice traffic.
موصى به
Digital Loop Carrier (DLC) Systems
Digital loop carrier systems multiplex multiple POTS lines over a single digital transport, and the PEF2466HV2.2 provides the per-channel voice-band codec/filter function on the line-card side. Its four-channel integration lets a single DLC line card terminate 4 subscribers per IC, reducing bill-of-materials cost versus single-channel codecs. The on-chip hybrid-balance network simplifies the BOM by eliminating external balance components, and the industrial temperature grade supports outdoor remote-cabinet deployments.
موصى به
PBX Line Interface Modules
Enterprise PBX systems require modular line cards that terminate multiple analog extensions, and the PEF2466HV2.2 delivers four channels per IC in a compact 64-pin QFP. According to the manufacturer datasheet, the on-chip transmit/receive filters meet ITU-T G.712 voice-band requirements, ensuring interoperability with standard PBX trunking and signaling schemes. The programmable gain path supports country-specific transmission levels without hardware rework.
موصى به
Integrated Access Devices (IAD)
Integrated access devices combine DSL, Ethernet, and POTS interfaces in one customer-premises box, and the PEF2466HV2.2 supplies the voice-band codec/filter function for the FXS ports of an IAD. Its small 64-pin QFP footprint and four-channel density allow IAD designers to deliver 4-8 POTS lines without consuming excessive board area. The µC/SPI control interface simplifies driver development on typical IAD SoC platforms running Linux or RTOS voice stacks.
موصى به
Industrial Telemetry over POTS
Industrial telemetry systems still use POTS lines for utility metering, alarm panels, and SCADA outstations where reliability outranks bandwidth. The PEF2466HV2.2's extended temperature range and programmable gain make it suitable for industrial-grade modems that encode telemetry data as audio FSK tones over the voice channel. Its 16-bit linear PCM path delivers the SNR margin needed for narrowband FSK detection at sub-milliwatt signal levels, and the µC interface enables automated line-loss compensation per channel.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PEF2466HV2.2 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PEB2466 | PEF2466HV2.1 |
|---|---|---|---|
| Brand | Infineon | Infineon | Infineon |
| Package | P-MQFP-64-1 | P-MQFP-64-1 - same | P-MQFP-64-1 - same |
| Number of Channels | 4 | 4 | 4 |
| Function | SICOFI-4-µC codec/filter | SICOFI-4 codec/filter | SICOFI-4-µC codec/filter |
| Coding | 16-bit linear / 8-bit A-law or µ-law | 16-bit linear / 8-bit A-law or µ-law | 16-bit linear / 8-bit A-law or µ-law |
| Voice Bandwidth | 300 Hz to 3.4 kHz | 300 Hz to 3.4 kHz | 300 Hz to 3.4 kHz |
| Control Interface | Serial µC / SPI | Serial µC / SPI | Serial µC / SPI |
| Firmware Revision | V2.2 (latest) | Engineering-mark variant | V2.1 (prior) |
| Lifecycle Status | Last-time-buy | Discontinued - legacy stock | Discontinued - legacy stock |
أبرز الفروقات
- Latest firmware revision in the SICOFI-4 family (مقابلPEF2466HV2.1)
- Production-grade qualification vs engineering mark (مقابلPEB2466)
- Four independent channels in a single 64-pin QFP (مقابلSingle-channel codec/filter ICs (e.g., discrete TP3054-class devices))
ملاحظات التصميم
Partition the PCB into separate analog and digital ground planes that meet only at a single point beneath the IC's AGND/DGND pins. Place the VREF decoupling capacitor (typically 10 µF tantalum in parallel with 100 nF ceramic) within 5 mm of the VREF pin. Route analog input pairs as differential microstrip with matched length and 100 Ω differential impedance to preserve CMRR above 60 dB across the 300 Hz-3.4 kHz voice band.
The PCM data interface (PCMDOUT, PCMDIN, PCMK, PCMSYNC) is the most timing-sensitive block. PCMK should be sourced from a low-jitter clock (under 50 ps RMS) and PCMSYNC must be aligned to the falling edge of PCMK per the datasheet timing diagram. Keep PCM traces shorter than 50 mm and avoid routing them parallel to analog input pairs; otherwise capacitive coupling can inject audible noise into the voice channel.
Decouple each VCCA and VCCD pin with a 100 nF ceramic placed within 2 mm of the pin, plus a 10 µF bulk tantalum per supply rail shared by up to four pins. Estimated: at full four-channel operation with typical +/-5 V analog and 3.3 V digital rails, total supply current is approximately 80 mA, so the upstream LDO should source at least 120 mA with adequate headroom. Add ferrite beads between the LDO output and the IC supply pins to isolate high-frequency digital switching noise from the analog front-end.
Do not leave the RESET pin floating; tie it to VCCD through a 10 kΩ pull-up and drive it from the host MCU at power-up with a minimum 100 µs low pulse. Failing to sequence RESET before the µC interface accesses can corrupt the internal gain registers and result in silent or distorted channels. Also, configure the per-channel A-law/µ-law selection registers before enabling the PCM data path - backplane controllers that skip this step often report all-zeros output on first power-up.
معلومات الامتثال
Compliance data was not present in the verified web sources for PEF2466HV2.2; marked as unknown per data authenticity rules. AEC-Q100 is not applicable for telecom interface ICs. RoHS and lead-free status must be confirmed with Infineon directly or via the lot-specific documentation provided by the distributor.
