Datasheet > MSM7617-001GS-BK

MSM7617-001GS-BK

更新时间： 2024-01-26 09:55:09

品牌	Logo	应用领域
冲电气 - OKI		电信综合业务数字网电信集成电路
页数	文件大小	规格书
30页	367K
描述
ISDN Echo Canceller, 1-Func, CMOS, PQFP64, 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64

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技术参数
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MSM7617-001GS-BK 技术参数

生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	QFP, QFP64,.66SQ,32	针数：	64
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.28	JESD-30 代码：	S-PQFP-G64
长度：	14 mm	功能数量：	1
端子数量：	64	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	QFP	封装等效代码：	QFP64,.66SQ,32
封装形状：	SQUARE	封装形式：	FLATPACK
电源：	5 V	认证状态：	Not Qualified
座面最大高度：	2.4 mm	子类别：	Other Telecom ICs
最大压摆率：	0.13 mA	标称供电电压：	5 V
表面贴装：	YES	技术：	CMOS
电信集成电路类型：	ISDN ECHO CANCELLER	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	0.8 mm
端子位置：	QUAD	宽度：	14 mm
Base Number Matches：	1

MSM7617-001GS-BK 数据手册

OKI Semiconductor

MSM7617

PIN DESCRIPTIONS

Symbol Type

Description

Reset signal input pin for channel 2.

“L”: Reset

RST2

“H”: Normal operation

Input signals are invalid for 100 µs after reset (after RST returns to “H” from “L”) for

setting initial values.

Input the basic clock during reset. Output pins will be placed in the following states

during reset.

Hi-Z: ROUT2, SOUT2

No effect: SYNCO, SCKO, ROUT1, SOUT1, DF1, WDT1

Previous state: DF2, WDT2

At power-up, keep this pin to "L" longer than 1 µs after a master clock (CLKIN) gets

stably supplied, and execute initialization of LSI internal registers by releasing it to

"H".

Also such as in a case when this LSI is intended to be kept in reset state, for

instance, till the first call comes in, the above-mentioned initialization of LSI internal

registers must be done, and, later than 560ns since the initialization, assert this pin

back to "L" and wait the call.

ADP2

HCL2

AFF coefficient control pin for channel 2.

This pin stops coefficient variation of the adaptive FIR filter (AFF), fixing the

coefficients. It allows once acquired AFF coefficients to be saved.

“H”: Fixed coefficient mode

“L”: Normal mode (variable coefficients)

Echo canceler disable pin for channel 2.

This pin disables the echo canceler and enables data from SIN to SOUT to be

output in “through mode”. The input and output levels of SIN and SOUT are

changed by the setting of the SG and SA pins; therefore, to output data from SIN to

SOUT in “through mode”, set the SA and SG pins to “0 dB”.

It simultaneously clears the adaptive FIR filter coefficients.

“H”: Disable mode

“L”: Normal mode (echo canceller enabled)

SYNC2

NLP2

Sync signal input pin for channel 2 transmit/receive PCM data while in parallel I/O

mode.

Input the transmit/receive sync signal (8 kHz) of the PCM CODEC connected to

channel 2. Input “L” if not in parallel I/O mode.

NLP control pin for channel 2.

This pin controls center clipping, forcing SOUT2 output to the minimum positive

value when it is below –54 dBm0. It is effective for reducing uncanceled echoes

and low-level noise.

“H”: Center clipping on

“L”: Center clipping off

1 2 3 456 7 8...30

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与MSM7617-001GS-BK相关器件

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MSM7620	OKI	Echo Canceler	获取价格
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