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BA7726AS Folha de dados(PDF) 5 Page - Rohm

Nome de Peças BA7726AS
Descrição Electrónicos  Analog compander with vocal fader for KARAOKE
Download  11 Pages
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Fabricante Electrônico  ROHM [Rohm]
Página de início  http://www.rohm.com
Logo ROHM - Rohm

BA7726AS Folha de dados(HTML) 5 Page - Rohm

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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 THROUGHINPUT : LINE IN, OUTPUT : LINE OUT
VOCAL CUT MODEINPUT : LINE IN, OUTPUT : LINE OUT
MIC THROUGHINPUT : MIC AMP IN, OUTPUT : LINE OUT
COMPRESSINPUT : MIC AMP IN, OUTPUT : CMP BF OUT
EXPANDINPUT : DLY BF IN, OUTPUT : LINE OUT
LoopINPUT : 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


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