MSM7540 datasheet(12/16 Pages) OKI

номер детали	MSM7540

подробное описание детали	Single Rail ADPCM CODEC

PDF	16 Pages

Scroll/Zoom	100%

производитель	OKI [OKI electronic componets]

домашняя страница	http://www.oki.com

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12 / 16 page

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MSM7540/7560

¡ Semiconductor

FEDL7540-03

Digital Output

Delay Time

tSDX

—

200

tSDR

—

200

tXD1, tRD1

—

200

tXD2, tRD2

—

200

1 LSTTL + 100 pF,

Pull-up: 500 W

PSRRT Noise Freq.

: 0 to 50 kHz

30——

Power Supply Noise

Rejection Ratio

Noise Level

: 50 mVPP

—

PSRRR

tXD3, tRD3

—

200

Parameter

Symbol

Level

Min.

Typ.

Max.

Unit

(VDD = 4.5 V to 5.5 V, Ta = –25°C to +70°C)

Freq.

Others

Condition

—

30——

(dBm0)

(Hz)

NIDLT

——

—

–69

(–72)

dBm0p

(dBmp)

NIDLR

——

1020

AVT

0.488

0.548

(*3)

0.615

AVR

0.488

0.548

(*3)

0.615

—

–72

(–75)

Idle Channel Noise

AIN = SG

(*1)

(*2)

Vrms

GSX2

Absolute Signal

Amplitude

VFRO

(*1)

—

AC Characteristics (Continued)

*1 Use the P-message weighted filter

*2 PCMRI input code

"11010101"(MSM7540)

"11111111"(MSM7560)

*3 0.548 Vrms = 0 dBm0= –3 dBm

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

G.721.

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