MSM7540 Ver la hoja de datos (PDF) - Oki Electric Industry

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MSM7540

Single Rail ADPCM CODEC

Oki Electric Industry 

¡ Semiconductor

MSM7540/7560

AC Chracteristics

Parameter

Transmit Frequency

Response

Receive Frequency

Response

Transmit Signal

to Distortion Ratio

Receive Signal

to Distortion Ratio

Transmit Gain

Tracking

Receive Gain

Tracking

Condition

Symbol Freq.

Level

(Hz)

(dBm0)

LOSS T1 0 to 60

LOSS T2 300 to 3000

LOSS T3 1020

0

LOSS T4 3300

LOSS T5 3400

LOSS T6 3968.75

LOSS R1 0 to 3000

LOSS R2 1020

LOSS R3 3300

0

LOSS R4 3400

LOSS R5 3968.75

SD T1

3

SD T2

0

SD T3 1020

–30

SD T4

–40

SD T5

–45

SD R1

3

SD R2

0

SD R3 1020

–30

SD R4

–40

SD R5

–45

GT T1

3

GT T2

–10

GT T3 1020

–40

GT T4

–50

GT T5

–55

GT R1

3

GT R2

–10

GT R3 1020

–40

GT R4

–50

GT R5

–55

*1 Use the P-message weighted filter

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

Min.

Others

Typ.

Max. Unit

25

—

—

dB

–0.15

—

+0.20 dB

Reference

dB

—

–0.15

—

+0.80 dB

0

—

0.80 dB

14

—

—

dB

–0.15

—

+0.20 dB

Reference

dB

— –0.15

—

+0.80 dB

0

—

0.80 dB

14

—

—

dB

35

—

—

dB

35

—

—

dB

(*1) 35

—

—

dB

28

—

—

dB

23

—

—

dB

35

—

—

dB

35

—

—

dB

(*1) 35

—

—

dB

28

—

—

dB

23

—

—

dB

–0.2

—

+0.2 dB

Reference

dB

— –0.2

—

+0.2 dB

–0.5

—

+0.5 dB

–1.2

—

+1.2 dB

–0.2

—

+0.2 dB

Reference

dB

— –0.2

—

+0.2 dB

–0.5

—

+0.5 dB

–1.2

—

+1.2 dB

11/15

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