TP3040

更新时间： 2024-09-26 22:19:19

品牌	Logo	应用领域
美国国家半导体 - NSC		晶体晶体管放大器 PC 局域网
页数	文件大小	规格书
10页	185K
描述
TP3040, TP3040A PCM Monolithic Filter

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

TP3040 数据手册

September 1994

TP3040, TP3040A PCM Monolithic Filter

General Description

Features

Designed for D3/D4 and CCITT applications

The TP3040/TP3040A filter is a monolithic circuit contain-

ing both transmit and receive filters specifically designed for

PCM CODEC filtering applications in 8 kHz sampled sys-

tems.

Low power consumption:

5V, 5V power supplies

45 mW (0 dBm0 into 600X)

30 mW (power amps disabled)

Power down mode: 0.5 mW

20 dB gain adjust range

The filter is manufactured using microCMOS technology

and switched capacitor integrators are used to simulate

classical LC ladder filters which exhibit low component sen-

sitivity.

No external anti-aliasing components

Sin x/x correction in receive filter

50/60 Hz rejection in transmit filter

TTL and CMOS compatible logic

All inputs protected against static discharge due to

handling

TRANSMIT FILTER STAGE

The transmit filter is a fifth order elliptic low pass filter in

series with a fourth order Chebyshev high pass filter. It pro-

vides a flat response in the passband and rejection of sig-

nals below 200 Hz and above 3.4 kHz.

RECEIVE FILTER STAGE

The receive filter is a fifth order elliptic low pass filter de-

signed to reconstruct the voice signal from the decoded/de-

multiplexed signal which, as a result of the sampling pro-

cess, is a stair-step signal having the inherent sin x/x fre-

quency response. The receive filter approximates the func-

tion required to compensate for the degraded frequency re-

sponse and restore the flat passband response.

Block Diagram

TL/H/6660–1

FIGURE 1

1995 National Semiconductor Corporation

TL/H/6660

RRD-B30M115/Printed in U. S. A.

12 3 4 5 6 7...10

中文翻译

下载PDF

与TP3040相关器件

型号	品牌	获取价格	描述	数据表
TP3040AJ	NSC	获取价格	TP3040, TP3040A PCM Monolithic Filter
TP3040AJ-1	TI	获取价格	SPECIALTY TELECOM CIRCUIT, CDIP16
TP3040AN	NSC	获取价格	TP3040, TP3040A PCM Monolithic Filter
TP3040AV	NSC	获取价格	TP3040, TP3040A PCM Monolithic Filter
TP3040AV-1	TI	获取价格	SPECIALTY TELECOM CIRCUIT, PQCC20, PLASTIC, LCC-20
TP3040AV-1X	TI	获取价格	SPECIALTY TELECOM CIRCUIT, PQCC20
TP3040AVX	TI	获取价格	SPECIALTY TELECOM CIRCUIT, PQCC20, PLASTIC, LCC-20
TP3040J	NSC	获取价格	TP3040, TP3040A PCM Monolithic Filter
TP3040J-1	TI	获取价格	SPECIALTY TELECOM CIRCUIT, CDIP16
TP3040N	NSC	获取价格	TP3040, TP3040A PCM Monolithic Filter