UPD9903GT中文资料PDF规格书
UPD9903GT规格书详情
μPD9903 ANALOG SUBSCRIBER LINE LSI (DIGITAL CODEC)
The µPD9903 is a digital CODEC that can be used in analog subscriber circuits such as private branch exchangers (PBXs) and switching equipment for central offices. It features three of the functions required for analog subscriber circuits: 2W/4W conversion, CODEC supervision, and subscriber line supervision.
Use of the µPD9903 in combination with a BS-SLIC (µPC7073) can reduce the number of components required in analog subscriber circuits.
FEATURES
• Single-chip monolithic LSI (CMOS)
• PCM CODEC → oversampling-type A/D and D/A converters
• Programmable functions
• Termination impedance
• Hybrid balance network
• Feed resistance
• Feed current
• PAD control
• A-law and µ-law
• Digital gain set function
• Ring-Trip function
• Single power supply (+5 V)
• Low power consumption during standby mode: 20 mW (TYP.)
产品属性
- 型号:
UPD9903GT
- 制造商:
NEC
- 制造商全称:
NEC
- 功能描述:
UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
NEC |
1043+ |
SSOP |
65000 |
绝对公司现货库存 |
询价 | ||
NEC |
21+ |
TSOP-48 |
35200 |
一级代理/放心采购 |
询价 | ||
NEC |
2022+ |
TSOP-48 |
105 |
原厂代理 终端免费提供样品 |
询价 | ||
NEC |
22+ |
SSOP |
7500 |
绝对原装自家现货!真实库存!欢迎来电! |
询价 | ||
NEC |
23+ |
SSOP48 |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
23+ |
N/A |
85100 |
正品授权货源可靠 |
询价 | |||
NEC |
2023+ |
SSOP |
700000 |
柒号芯城跟原厂的距离只有0.07公分 |
询价 | ||
NEC |
SSOP48 |
11200 |
原厂授权一级代理、全球订货优势渠道、可提供一站式BO |
询价 | |||
NEC |
2022+ |
TSOP-48 |
30000 |
进口原装现货供应,原装 假一罚十 |
询价 | ||
NEC |
21+ |
TSOP-48 |
9852 |
只做原装正品现货!或订货假一赔十! |
询价 |