MSM7728 datasheet(13/23 Pages) OKI

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¡ Semiconductor

MSM7728

13/23

AC Characteristics (Continued)

DIS

4.6 kHz to

—

Discrimination

0 to 4000 Hz

300 to

—

–37.5

–35 dBm0

Out-of-band Spurious

4.6 kHz to 100 kHz

IMD

fa = 470

—

–52

–40 dBm0

Intermodulation Distortion

–4

2fa – fb

PSR T

0 to

—30—

Power Supply Noise Rejection Ratio

50 mVPP

PSR R

72 kHz

3400

fb = 320

50 kHz

Condition

Parameter

Symbol

Min. Typ. Max. Unit

Level

(dBm0)

Freq.

(Hz)

(Fs = 8 kHz, VDD = 2.5 V to 3.6 V, Ta = –30°C to +85°C)

V PB

V RT

DfPB

DfRT

Gv11

Gv12

Gv13

Gv21

Gv22

Gv23

Gv24

Gv25

Gv26

Gv27

Gv31

Gv32

Gv33

Gv34

Gv35

Gv36

Gv37

PB Acknowledge Tone Output Level

Service Tone Output Level

PB Acknowledge Tone

Frequency Distortion

Service Tone Frequency Distortion

VOL1

Gain Setting Value

VOL2

Gain Setting Value

VOL3

Gain Setting Value

–27

–22

–19

–28

–23

–20

–16

–11

–8

–17

–12

–9

–18

–15

–13

–8

–3

–1

–1.5

—

+1.5

–1.5

—

+1.5

567

–7

–6

–5

–13

–12

–11

567

234

–4

–3

–2

–7

–6

–5

–10

–9

–8

–13

–12

–11

–16

–15

–14

10.5

13.5

6.5

9.5

2.5

5.5

–5.5

–4

–2.5

–9.5

–8

–6.5

–13.5

–12

–10.5

–17.5

–16

–14.5

6dBsetting

–6dBsetting

–12dBsetting

6dBsetting

3dBsetting

–3dBsetting

–6dBsetting

–9dBsetting

–12dBsetting

–15dBsetting

12dBsetting

8dBsetting

4dBsetting

–4dBsetting

–8dBsetting

–12dBsetting

–16dBsetting

High group

Low group

High group

Low group

SPKP, EAR

VOL3 standard

TOUT

—

VOL3 standard

Measured inband

SPKP, EAR

Referenced to

0dB setting

1020

Referenced to

0dB setting

1020

Referenced to

0dB setting

1020

dBV

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