AHA4540B中文资料PDF规格书
AHA4540B规格书详情
[comtech aha corporation]
The AHA4540 device is a single-chip Turbo Product Code (TPC) Forward Error Correction (FEC) Encoder/Decoder capable of 155 Mbit/sec (OC-3) data rates (up to 200 Mbit/sec channel rates). This device integrates both a TPC encoder and decoder, and can be operated in a full duplex mode. In addition to TPC coding, support is included for helical interleaving, synchronization mark insertion and detection, CRC computation, scrambling, and higher order modulation symbol mapping. Figure 1 shows the functional block diagram.
The channel interface supports direct connection to various modulators and demodulators. Support for an arbitrary constellation mapping is included with external logic.
FEATURES
PERFORMANCE:
• Maximum 200 Mbit/sec channel rate
• Payload data rates of at least 155 Mbit/sec for code rates >0.7 and three iterations
• Symbol rates up to 50 MSym/sec
• Encode Latency of less than 10 clocks
• Integrated encoder/decoder; scrambler/descrambler; and interleaver/deinterleaver for full duplex operation
• Supports enhanced Turbo Product Codes (eTPCs)
• Corrections count and averaging for channel SNR estimation
FLEXIBILITY:
• Code Rates from .25 to 0.98
• Variable iterations up to 256 per block
• Block Sizes from 256 bits to 16 Kbits
• Programmable code shortening supports exact block sizes
• 32 bit CRC Insertion and Checking with programmable packet length
CHANNEL INTERFACE:
• Accepts in-phase and quadrature (I & Q) inputs, up to 8 bits each
• Supports soft metric inputs at up to 4 soft metrics of 4 bits each
• Soft metric computation for BPSK, QPSK, 8-PSK, 16-QAM, 64-QAM, and 256-QAM
• Supports additional modulation formats with external logic
• Encoder and decoder pass through modes
• Programmable packet and block level synchronization
• Automatic phase ambiguity resolution
• Supports insertion and detection of sync marks up to 32 bits in length
• 8-bit Parallel Data Input/Output
• Support for external VCO to generate data clocks
OTHERS:
• Intel or Motorola microprocessor interface
• 3.3V I/O, 1.8V core operation
• Commercial or industrial temperature rating
• RoHS compliant
产品属性
- 型号:
AHA4540B
- 功能描述:
AHA4540B Specification - 155 Mbits/sec TPC Encoder/Decoder IC
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
AHA/Advanced Hardware Architec |
21+ |
QFP |
528 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
AHA |
专业军工 |
NA |
1000 |
只做原装正品 |
询价 | ||
AHA |
2020+ |
QFP-208 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
AHA |
2138+ |
QFP |
8960 |
专营BGA,QFP原装现货,假一赔十 |
询价 | ||
23+ |
QFP208 |
20000 |
原厂原装正品现货 |
询价 | |||
AHA |
21+ |
QFP208 |
13880 |
公司只售原装,支持实单 |
询价 | ||
AHA |
2018+ |
SMD |
24 |
“芯达集团”专营军工百分之百原装进口 |
询价 | ||
AHA |
23+ |
QFP |
96880 |
只做原装,欢迎来电资询 |
询价 | ||
AHA |
15+ |
QFP |
208 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
AHA |
23+ |
NA |
2635 |
航宇科工半导体-中国航天科工集团战略合作伙伴! |
询价 |