Datasheet > MSM7557

MSM7557

更新时间： 2022-12-12 11:17:16

品牌	Logo	应用领域
冲电气 - OKI		调制解调器电话
页数	文件大小	规格书
25页	152K
描述
Single Chip MSK Modem with Compandor for Cordless Telephone

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数据手册

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MSM7557 数据手册

¡ Semiconductor

MSM7557

ABSOLUTE MAXIMUM RATINGS

Parameter

Power Supply Voltage

Analog Input Voltage *1

Digital Input Voltage *2

Storage Temperature

Symbol

V_DD

Rating

Unit

Condition

–0.3 to +7.0

Ta = 25°C

V_IA

Refer to GND

–0.3 to VDD + 0.3

–55 to +150

V_ID

T_STG

°C

—

*1 : LIM, VR2, TVI, RAI, CMPI

*2 : SD, EMP, DYN, SEC, RCK1, RCK2, BYP, BR, FDE, BIT, FPS, RVE, PDN, X2, ME, TVE

RECOMMENDED OPERATING CONDITIONS

Parameter

Symbol

Condition

Min.

2.7

4.5

–30

3.6860

—

Typ.

3.6

Max.

5.5

+70

3.6868

—

Unit

from

GND level

DYN = "0"

DYN= "1"

Power Supply Voltage

V_DD

5.0

+25

_DD= 2.7 V to 5.5 V

Operating Temperature

Crystal Oscillating Freq.

T_op

f_X'TAL

°C

MHz

3.6864

1200

2400

1.0

—

BR = 0"

BR = "1"

—

Data Signaling Rate

C4, C5, C11, C12, C15

C6, C13

T_S

bit/sec

—

DYN = "0"

DYN = "1"

—

0.22

0.47

1.0

—

C7, C8

C9, C10

C14

—

RL ≥ 40kW

—

0.22

—

C19

C20, C21

—

0.47

—

10/25

1...7 8 91011 12 13...25

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