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PDF BA3838F Data sheet ( Hoja de datos )
| Número de pieza | BA3838F | |
| Descripción | Vocal fader IC | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Multimedia ICs
Vocal fader IC
BA3837 / BA3837F / BA3838F
The BA3837, BA3837F and BA3838F are ICs with an internal secondary active LPF for vocal cancellation functions
and mixing amplifier functions with high degrees of vocal cancellation. Three control pins are used to switch between
modes: the key controller input mode, through mode, vocal fader mode, sound multiplexing mode and mute mode.
By offering these functions on a single chip, these ICs can significantly reduce the number of external components.
•Applications
Karaoke functions on stereo systems, portable stereos and VCRs
•Features
1) Single-chip IC with vocal fader, to erase vocals from
commercially available recordings.
2) Internal secondary active LPF for high degrees of
vocal cancellation (high synchronization rejection).
3) Three control pins for switching between 4 modes:
through, vocal fader, sound multiplexing and mute.
4) Key controller input and internal switches.
5) Low noise and low distortion.
6) Internal microphone mixing amplifier.
7) Available in two packages: DIP 16-pin and SOP 16-
pin (BA3838F is available in SOP 16-pin only).
•Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
Power
dissipation
DIP16
SOP16
VCC
Pd
18
1000∗1
550∗2
Operating temperature
Topr
– 40 ~ + 85
Storage temperature
Tstg – 55 ~ + 125
∗1 Reduced by 10 mW for each increase in Ta of 1°C over 25°C.
∗2 Reduced by 5.5mW for each increase in Ta of 1°C over 25°C.
Unit
V
mV
°C
°C
•Recommended operating conditions (Ta = 25°C)
Parameter
Symbol Min. Typ.
Power supply voltage∗1
VCC 5.4 —
Power supply voltage∗1
VCC 5.4 —
Power supply voltage∗2
VCC 4.0 —
∗1 BA3837 and BA3837F
∗2 BA3838F
Max.
10
13
15
Unit Conditions
V Ta = – 40°C ~ + 85°C
V Ta = – 40°C ~ + 60°C
V Ta = 25°C
1
1 page  
Multimedia ICs
BA3837 / BA3837F / BA3838F
Pin No.
Pin name
Equivalent circuit
VCC
VCC
12
LPF3
12
20k
VCC
Function
LPF output pin
13 ROUT
VCC
13
VCC
20k
20k
R output pin
14 CONTA
VCC
14
Mode switching pin A
15 CONTB
15
VCC
Mode switching pin B
16 CONTC
VCC
16
Mode switching pin C
5
5 Page 
Multimedia ICs
10
1
0.1
0.01
0.001
– 40
– 30 – 20 – 10
0
INPUT LEVEL : VIN (dBV)
10
Fig. 6 THD vs.
VIN characteristics
•External dimensions (Units: mm)
BA3837
19.4 ± 0.3
16
9
1
2.54
8
7.62
0.5 ± 0.1
0.3 ± 0.1
0° ~ 15°
DIP16
BA3837 / BA3837F / BA3838F
BA3837F / BA3838F
10.0 ± 0.2
16 9
18
1.27 0.4 ± 0.1
0.3Min.
SOP16
0.15
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet BA3838F.PDF ] | |
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