5

Multimedia ICs

BA7725S / BA7725FS

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

Supply current

4.3

5.7

7.6

mA

No input

Line through output level

– 9.0

– 8.0

– 7.0

dBV

Line through output distortion

—

0.15

0.5

%

Line through maximum output level

+ 5.0

+ 7.2

—

dBV

Line through noise level

—

– 92

– 77

dBV

Microphone through output level

– 10.5

– 8.5

– 6.5

dBV

Microphone through output distortion

—

0.2

0.5

%

Microphone through input conversion noise

—

– 114

– 104

dBV

Input shorted

Microphone through crosstalk

—

– 91

– 75

dBV

Compress output level

– 6.5

– 4.5

– 2.5

dBV

Compress output distortion

—

0.5

2.0

%

Compress noise level

—

– 55

– 45

dBV

Compress characteristics

CMP

—

– 11.0

—

dB

– 11.7

– 9.7

—

dBV

Expand output distortion

—

0.25

2.0

%

Expand characteristic

EXP

—

– 19.5

—

dB

—

– 54

– 44

dB

– 7.5

– 5.5

—

dBV

—

– 42

– 32

dBV

MIC OFF holding voltage

0.0

—

—

—

1.0

V

MIC ON holding voltage

2.0

—

9.0

V

→ – 62dBV

Output level differential

Expand output level 1

Expand output level 2

→ – 10.0dBV

Output level differential

Loop output level 1

Loop output level 2

〈LINE THROUGH〉 INPUT : LINE IN, OUTPUT : LINE OUT

〈MIC THROUGH〉 INPUT : MIC AMP IN, OUTPUT : LINE OUT

〈COMPRESS〉 INPUT : MIC AMP IN, OUTPUT : CMP BF OUT

〈EXPAND〉 INPUT : DLY BF IN, OUTPUT : LINE OUT

〈Loop〉 INPUT : DLY BF IN, OUTPUT : CMP BF OUT

〈Mode holding voltage〉

Unless otherwise noted, V4 = 9.0V (MIC ON), V6 = 9.0V (Max. LOOP GAIN)

MIC OFF, Rg = 600

Rg = 600