MSM7570L-01 Ver la hoja de datos (PDF) - Oki Electric Industry

Número de pieza

componentes Descripción

Lista de partido

MSM7570L-01

Multi-Function ADPCM CODEC

Oki Electric Industry 

¡ Semiconductor

MSM7570L-01/02

AC Characteristics (Continued)

(VDD = 2.7 V to 3.6 V, Ta = –25°C to +70°C)

Condition

Parameter

Symbol Freq.

(Hz)

Level

(dBm0)

Min.

Others

Typ.

Max. Unit

Idle Channel Noise

NIDLT

—

NIDLR

—

AIN = SG

(*1)

—

(*1)

—

—

(*2)

–68

—

(–75.7) dBmOp

–72 (dBmp)

—

(–79.7)

Absolute Signal

Amplitude

AVT

1020

AVR

0.320

GSX2 0.285

0.359 Vrms

(*3)

0

0.320

VFRO 0.285

0.359 Vrms

(*3)

Power Supply Noise

PSRRT Noise Freq. Noise Level

—

30

—

—

dB

Rejection Ratio

PSRRR : 0 to 50 kHz : 50 mVPP

30

—

—

dB

tSDX

0

—

200 ns

tSDR

0

—

200 ns

Digital Output

Delay Time

PCM and ADPCM

Interface

tXD1

0

tRD1

1 LSTTL + 100 pF, See

—

tXD2

Pull-up: 500 W Fig.4

0

tRD2

—

200 ns

—

200 ns

tXD3

0

—

200 ns

tRD3

tM1

50

—

—

ns

tM2

50

—

—

ns

tM3

50

—

—

ns

tM4

50

—

—

ns

Serial Port Digital

tM5

CL = 100 pF

100

—

—

ns

Input/Output Setting

tM6

—

See 50

—

—

ns

Time

tM7

Fig.5 50

—

—

ns

tM8

0

—

50

ns

tM9

50

—

—

ns

tM10

50

—

—

ns

tM11

0

—

50

ns

Shift Clock Frequency

fEXCK

—

—

EXCK —

—

10 MHz

*1 Use the P-message weighted filter

*2 PCMRI input code "11010101"(A-law)

"11111111"(m-law)

*3 0.320 Vrms = 0 dBm0 = –7.7 dBm

Note: All ADPCM coder and decoder characteristics comply with ITU-T Recommendation

G.726.

14/26

Share Link: