UPD9903中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書
UPD9903規(guī)格書詳情
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.)
產(chǎn)品屬性
- 型號：
UPD9903
- 制造商：
NEC
- 制造商全稱：
NEC
- 功能描述：
UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
NEC |
24+ |
NA/ |
4767 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號開票 |
詢價 | ||
NEC |
2016+ |
MQFP2828 |
8880 |
只做原裝,假一罰十,公司可開17%增值稅發(fā)票! |
詢價 | ||
NEC |
23+ |
QFP208 |
20000 |
全新原裝假一賠十 |
詢價 | ||
NEC |
24+ |
QFP |
80000 |
只做自己庫存 全新原裝進口正品假一賠百 可開13%增 |
詢價 | ||
NEC |
QFP208 |
97+ |
2 |
全新原裝進口自己庫存優(yōu)勢 |
詢價 | ||
NEC |
23+ |
QFP |
19526 |
詢價 | |||
NEC |
2450+ |
TSSOP |
8850 |
只做原裝正品假一賠十為客戶做到零風(fēng)險!! |
詢價 | ||
NEC |
1999 |
QFP |
2316 |
原裝現(xiàn)貨海量庫存歡迎咨詢 |
詢價 | ||
NEC |
25+ |
QFP |
4500 |
全新原裝、誠信經(jīng)營、公司現(xiàn)貨銷售! |
詢價 | ||
NEC |
24+ |
SSOP |
37935 |
鄭重承諾只做原裝進口現(xiàn)貨 |
詢價 |
