SA2531E中文资料PDF规格书
SA2531E规格书详情
GENERAL DESCRIPTION
The SA2531 is a CMOS integrated circuit that contains all the functions needed to form a high performance electronic telephone.
The device incorporates LD/MF repertory dialling, melody generation, ring frequency discrimination and a high quality speech circuit.
A RAM is on chip for a 31 digit last number redial and 14 memories each containing up to 21 digits. The sliding cursor procedure makes Last Number Redial easy behind a PABX.
The SA2531 (exept the SA2531D) incorporates a volume control for the earpiece. The receive volume can be controlled by the VOL key (+4dB) or by the +/- keys (+6dB/-4dB in 5 steps).
The versatility of the circuit is provided by on chip programmability and a few external components. This allows easy adaption to different PTT requirements without changing the PCB of the telephone.
■ Speech circuit, LD/MF Repertory Dialler
and Tone Ringer on one 28 pin CMOS
chip
■ Net 4 compatible
■ Soft clip to avoid harsh distortion
■ Line Loss Compensation selectable by
pin option
■ Power down mode
■ Versatile applications for different PTT
demands
■ 31 digit last number redial
■ Sliding Cursor protocol with comparison
■ 2 Flash keys, 100 ms and 280 ms (option
600 ms)
■ Ring frequency discrimination
FEATURES
■ Operating range from 13 to 100 mA
(down to 5 mA with reduced performance)
■ Volume control of receive signalExcept D)
■ Low noise (max. -72dBmp)
■ Real or Complex impedance on chip programmable
■ LD/MF switchable dialling
■ 14 memories, 4 direct/10 indirect or 10 direct
■ Pause key for 2, 3 or 6 sec Auto Pause or Wait function
■ On chip MF filter (CEPT CS 203 compatible)
■ 3-tone melody generator
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
BOURNS |
21+ |
轴向引线 |
4000 |
中国航天工业部战略合作伙伴行业领导者 |
询价 | ||
RFMD |
QFN |
6698 |
询价 | ||||
23+ |
N/A |
94000 |
一级代理放心采购 |
询价 | |||
SAMES |
2020+ |
DIP28 |
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 | ||
SAWNICS |
3.0x3.0 |
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 | |||
23+ |
N/A |
65000 |
一级代理放心采购 |
询价 | |||
BOURNS |
23+ |
7350 |
现货供应,当天可交货!免费送样,原厂技术支持!!! |
询价 | |||
FUJITSU/富士通 |
2021+ |
NA |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
询价 | ||
SAWNICS |
NA |
5500 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
SAWNICS |
2018+ |
SMD |
5500 |
长期供应原装现货实单可谈 |
询价 |