MSM6948 Ver la hoja de datos (PDF) - Oki Electric Industry

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MSM6948

1200 bps Single Chip MSK Modem

Oki Electric Industry 

¡ Semiconductor

MSM6948/6948V

Voice signal input (TI)

Parameter

Voltage Gain

Input Signal Level

Input Resistance

Symbol

GT

VTI

RTI

Built-in signal ground (SG)

Parameter

Symbol

DC Voltage

VSG

Condition

VAO/VTI

—

fTI £ 4 kHz

FT = "1"

ME = "0"

Min.

–2

—

50

Typ.

0

—

—

Max. Unit

+2

dB

0

dBm

—

kW

Condition

Without DC Load

Min.

VDD

2

– 0.1

Typ.

VDD

2

Max. Unit

VDD

2

+ 0.1

V

Receive signal input (AI)

Parameter

Input Resistance

Receive Signal Level

Bit Error Rate

Symbol

RIR

VIR

BER

Condition

fTI £ 4 kHz

—

S/N

8 dB

at AI

10 dB

Min.

50

–30

—

—

Typ.

—

—

1 ¥ 10–3

5 ¥ 10–5

Max.

—

0

—

—

Unit

kW

dBm

N/N

Re-generated receive data timing clock output (RT)

Parameter

Data Bit Number for PLL'

Lock-in

Symbol

NPLL1

NPLL2

Condition

Min.

CF = "1"

CT= "0"

—

*1

CT= "1"

—

Typ.

—

—

Max. Unit

18

bit

50

*1 Data bit number to lock-in within 22.5 degree

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