SM5904BF中文资料PDF规格书
SM5904BF规格书详情
Overview
The SM5904BF is a compression and non compression type shock-proof memory controller LSI for compact disc players. The compression level can be set in 4 levels, and external 4M DRAM can be connected to expand the memory to 4M bits. Digital attenuator, soft mute and related functions are also incorporated. It operates from a 2.4 to 3.3 V supply voltage range.
Features
- 2-channel processing
- Serial data input
• 2s complement, 16-bit/MSB first, right-justified format
- Wide capture function (up to 3 × speed input rate)
- System clock input
• 384fs (16.9344 MHz)
- Shock-proof memory controller
• ADPCM compression method
• 4-level compression mode selectable
4-bit compression mode 2.78 s/Mbit
5-bit compression mode 2.22 s/Mbit
6-bit compression mode 1.85 s/Mbit
Full-bit non compression mode 0.74 s/Mbit
• External DRAM configurations usable
2 × 4M DRAM (1M × 4 bits)
Internal and External 4M DRAM
1 × 4M DRAM (1M × 4 bits)
Only Internal 4M DRAM
- Compression mode selectable
- Microcontroller interface
• Serial command write and status read-out
• Data residual detector: 15-bit operation, 16-bit output
• Digital attenuator 8-bit setting
• Soft attenuator function
Noiseless attenuation-level switching (256- step switching in 23 ms max.)
• Soft mute function
Mute ON in 23 ms max.
Direct return after soft mute release
• Forced mute
- Extension I/O
Microcontroller interface for external control using 4 extension I/O pins
- +2.4 to + 3.3 V operating voltage range
- Schmitt inputs
All input pins (including I/O pins) except CLK (system clock)
- Reset signal noise elimination
Approximately 3.8 µs or longer (65 system clock pulses) continuous LOW-level reset
- Digital audio interface (DIT)
- 44-pin QFP package (0.8 mm pin pitch)
产品属性
- 型号:
SM5904BF
- 制造商:
NPC
- 制造商全称:
Nippon Precision Circuits Inc
- 功能描述:
compression and non compression type shock-proof memory controller
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
NPC |
23+ |
NA/ |
7850 |
原厂直销,现货供应,账期支持! |
询价 | ||
NPC |
23+ |
QFP |
8000 |
全新原装假一赔十 |
询价 | ||
NPC |
2016+ |
QFP44P |
6523 |
只做原装正品现货!或订货! |
询价 | ||
NPC |
23+ |
NA |
3200 |
专业电子元器件供应链正迈科技特价代理QQ1304306553 |
询价 | ||
原厂正品 |
23+ |
QFP |
5000 |
原装正品,假一罚十 |
询价 | ||
SKYWORKS |
2022+ |
MLP-2 |
6000 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 | ||
NPC |
22+23+ |
QFP |
30571 |
绝对原装正品全新进口深圳现货 |
询价 | ||
NPC |
0048+ |
LQFP-44 |
6997 |
原装现货海量库存欢迎咨询 |
询价 | ||
NPC |
2022 |
QFP |
80000 |
原装现货,OEM渠道,欢迎咨询 |
询价 | ||
NPC |
23+ |
LQFP-44 |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 |