BA7726AFS datasheet(5/11 Pages) ROHM

部件名	BA7726AFS

功能描述	Analog compander with vocal fader for KARAOKE

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制造商	ROHM [Rohm]

网页	http://www.rohm.com

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5 / 11 page

5

Multimedia ICs

BA7726AS / BA7726AFS

•Electrical characteristics (unless otherwise noted, Ta = 25°C, Vcc = 9.0V)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

Supply current

ICC

5.5

8.4

12.7

mA

No input

Line through output level

VOLL

– 9.0

– 8.0

– 7.0

dBV

VIN = – 20.0dBV

Line through output distortion

THDLL

—

0.026

0.2

%

Line through max. output level

VOMLL

+ 7.8

+ 10.0

—

dBV

Line through noise level

VONLL

—

– 100

– 85

dBV

MIC OFF (VECHO = 0.1

× VCC)

Interchannel crosstalk

CTLL

—

– 85

—

dBV

MIC OFF (VECHO = 0.1

× VCC)

Mute level

MT

—

– 100

– 85

dBV

MUTE (VMUTE = H)

MIC OFF (VECHO = 0.1

× VCC)

Through mode output level

VOLLV

– 1.0

0.0

+ 1.0

dBV

VIN = – 12dBV

VOLL1

– 1.0

0.0

+ 1.0

dB

VOLL2

—– 35

– 28

dB

Microphone through output level

VOML

– 9.9

– 8.4

– 6.9

dBV

VIN = – 38dBV

Microphone through

equivalent input noise

VONML

—

– 117

– 102

dBV

Microphone input crosstalk

CTML

—

– 92

– 77

dBV

MIC OFF (VECHO = 0.1

× VCC)

ALC level

VOAML

+ 5.1

+ 6.6

+ 8.1

dBV

V28 = 2.9V

Compress output level

VOMC

– 5.5

– 3.5

– 1.5

dBV

VIN = – 38dBV

Compress characteristics

CMP

—

+ 5.2

—

dB

VIN = – 43dBV

→ – 33dBV

Output level differential

Expand output level

VODL

– 9.4

– 7.4

—

dBV

VIN = – 4dBV

Expand characteristics

EXP

—

+ 19.4

—

dB

Echo EVR attenuation ratio

—

– 50

– 40

dB

Loop output level

VODC

– 4.4

– 2.4

—

dBV

VIN = – 4dBV

Loop EVR attenuation ratio

—

– 29

—

dB

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

〈VOCAL CUT MODE〉 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

∆VODC

∆VODL

LOOP GAIN = Min. (VLOOP = 0.2

× VCC)

VIN = – 4dBV and when VIN = Vodc

ECHO LEVEL = Min. (VECHO = 0.2

× VCC)

VIN = – 4dBV and when VIN = Vodl

VIN = – 9dBV

→ + 1dBV, Output level differential

(VLSTR = H, VLVFR = OPEN, VNOVC = OPEN)

VIN = – 12dBV (dual ch.in.),VOCAL FADER

(VLSTR = H, VLVFR = OPEN, VNOVC = OPEN)

VIN = – 12dBV (single ch. in.),VOCAL FADER

MIC OFF (VECHO = 0.1

× VCC)

Vocal suppression ratio 1

Vocal suppression ratio 2

∗1 Unless otherwise noted, mode settings are as follows.

∗2 All parameters conform to the Measurement circuit diagram.

MUTE (VMUTE = GND), STEREO (VNOVC = GND, VLSTR = OPEN, VLVFR = OPEN)

ECHO LEVEL = Max. (VECHO = VCC), LOOP GAIN = Max. (VLOOP = VCC)

Signal frequency : 1kHz,

∗1 : B.W. = 0.4 ~ 30kHz, ∗2 : DIN AUDIO

VIN = – 20.0dBV∗1

No input, Rg = 1k

Ω∗2

VIN – 12dBV, Rg = 1k

Ω∗2

VIN = – 12dBV, Rg = 1k

Ω∗2

THD = 1%∗1

Rg = 1k

Ω∗2

VIN = – 30dBV∗2

类似零件编号 - BA7726AFS

制造商	部件名	数据表	功能描述
Rohm	BA7725	94Kb / 8P	Analog compander for KARAOKE echo systems
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