BU9253AS Datasheet, PDF (2/6 Pages) Rohm – KARAOKE echo IC

Multimedia ICs
•^{Pin descriptions}
BU9253FS / BU9255FS
Pin No. Pin name
Function
1
GND
Ground
2
ECHO VR Echo level DC control
3
BIAS
Analog DC bias
4
DAINT IN DA integrator input
5 DAINT OUT DA integrator output
6
DALPF IN DA LPF input
7 DALPF OUT DA LPF output
Source sound and echo sound
8
MIX OUT _{mixing output}
9
MIX IN Mixing amplifier source sound input
10 ADLPF IN AD LPF input
11 ADLPF OUT AD LPF output
12 ADINT OUT AD integrator output
13
ADINT IN AD integrator input
14
VCC
Vcc
15
MUTE Mute control
16
CR
Oscillator output
BU9253AS / BU9253FS / BU9255FS
BU9253AS
Pin No. Pin name
Function
1
GND
Ground
2
ECHO VR Echo level DC control
3
N.C.
Internally
4
BIAS
Analog DC bias
5
DAINT IN DA integrator input
6 DAINT OUT DA integrator output
7
DALPF IN DA LPF input
8 DALPF OUT DA LPF output
Source sound and echo sound
9
MIX OUT _{mixing output}
10
MIX IN Mixing amplifier source sound input
11 ADLPF IN AD LPF input
12 ADLPF OUT AD LPF output
13 ADINT OUT AD integrator output
14
ADINT IN AD integrator input
15
VCC
Vcc
16
N.C.
Internally
17
MUTE Mute control
18
CR
Oscillator output
•^{Absolute maximum ratings (Ta = 25°C)}
Parameter
Symbol
Limits
Unit
Applied voltage
VCC
7
V
BU9253FS
Power dissipation BU9253AS
Pd
BU9255FS
500^∗1
600^∗2
mW
500^∗1
Operating temperature
Topr
– 10 ~ + 70
°C
Storage temperature
Topr
– 55 ~ + 125
°C
Input voltage
VIN
– 0.3 ~ VCC + 0.3
V
∗1 Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.
∗2 Reduced by 6.0mW for each increase in Ta of 1°C over 25°C.
•^{Recommended operating conditions (Ta = 25°C)}
Parameter
Symbol Min. Typ. Max.
Unit
Power supply voltage
VCC
4.0
5.0
5.5
V
2