Datasheet > MSM7582

MSM7582

更新时间： 2024-02-07 11:02:49

品牌	Logo	应用领域
冲电气 - OKI		调制解调器
页数	文件大小	规格书
24页	180K
描述
pie/4 Shift QPSK MODEM

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技术参数
数据手册

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MSM7582 技术参数

生命周期：	Obsolete	零件包装代码：	TSOP1
包装说明：	TSOP1,	针数：	32
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.84	数据速率：	384 Mbps
JESD-30 代码：	R-PDSO-G32	长度：	12.4 mm
功能数量：	1	端子数量：	32
最高工作温度：	70 °C	最低工作温度：	-25 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSOP1
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE
认证状态：	Not Qualified	座面最大高度：	1.2 mm
标称供电电压：	3 V	表面贴装：	YES
技术：	CMOS	电信集成电路类型：	MODEM
温度等级：	OTHER	端子形式：	GULL WING
端子节距：	0.5 mm	端子位置：	DUAL
宽度：	8 mm	Base Number Matches：	1

MSM7582 数据手册

¡ Semiconductor

MSM7582/7582B

PIN AND FUNCTIONAL DESCRIPTIONS

TXD

Transmit data input for 384 kbps.

TXCI

Transmit clock input.

When the control register CR0 – B6 is “0”, a 384 kHz clock pulse synchronous with TXD should

be input to this pin. This clock pulse should be continuous because these devices use APLL to

generate the internal clock pulse.

When CR0 – B6 is “1”, a 3.84 MHz clock pulse should be input to this pin. When the 3.84 MHz

clock pulse is applied, TXCO outputs a 384 kHz clock pulse, which is generated by dividing the

3.84 MHz to TXCI by 10. The transmit data, synchronous 384 kHz clock pulse, should be input

to the TXD. In this case the devices do not use APLL, and the 3.84 MHz clock pulse need not be

continuous. (Refer to Fig. 1.)

TXCO

Transmit clock output.

When CR0 - B6 is “0”, TXCO outputs the 384 kHz clock pulse (APLL output) for monitoring

purposes. When CR0 – B6 is “1”, this pin outputs a 384 kHz clock pulse generated by dividing

the TXCI input by 10. (Refer to Fig. 1.)

When CR0 – B6 = “0” and CR5 – B7 = “1”, this pin outputs the burst timing position.

TXW

Transmit data window input.

The transmit timing signal for the burst data is input to the device pin. If TXW is “1”, the

modulation data is output. However, the MSM7582 is different from the MSM7582B in the ramp

response time for burst rise-up and burst fall-down of I, Q modulated outputs, as shown in the

table below. (Refer to Fig, 1-1 for the MSM7582 and Fig, 1-2 for the MSM7582B)

MSM7582

1.75 symbols

2.75 symbols

MSM7582B

2 symbols

Ramp Rise-up

Ramp Fall-down

2 symbols

The TXCO burst position output timing discribed before, is different, according to this table.

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1 2 345 6 7...24

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