BD3812F Datasheet, PDF (1/3 Pages) Rohm – 2 channel Volume IC

Audio ICs
2 channel Volume IC
BD3812F
BD3812F
BD3812F is a sound processor IC that has features of volume, and gain amplifier required for AV receiver and
mini-component stereo. Up to 4 chips can be used with common bus line by chip select pin.
zApplications
AV receiver and mini stereo set.
zFeatures
1) Volume residual noise : 1.2µ Vrms {Dynamic range : 131dB (IHF-A)}
2) Volume is 2ch-independence. (0 to -103dB, MUTE 1dB / step)
3) BUS is common and be possible to maximum 8channnel-ization of
6ch-Volume IC.
4) It can be controlled until 4 chips with common bus line at the same time.
5) Maximum output voltage : 4.2Vrms (Vcc=7V, VEE=−7V, RL=10kΩ)
6) The serial data control of 2-wire type. (correspond to 3.3V and 5V)
7) Built-in the convenient output gain amp.(0, 6 to 18dB, 2dB / step) for the
adjustment of the output signal.
8) Output mute be able to serial data and external mute terminal both.
zExternal dimensions (Unit : mm)
8.7±0.2
14
8
1
7
1.27
0.4±0.1
0.15±0.1
0.1
SOP14
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol
Impressed voltage
VCC−VEE
Input voltage
VIN
Power dissipation
Pd
Operating temperature
Topr
Storage temperature
Tastg
∗ This value decreases 4.5mW/ ˚C for Ta=25˚C or more.
A standard board,70⁺ 70⁺ 1.6mm, shall be mounted.
Limits
15
VCC+0.3 to VEE−0.3
450 ^∗
−20 to +75
−55 to +125
Unit
V
V
mW
˚C
˚C
zOperating voltage range (Ta=25°C)
Parameter
Symbol Min. Typ. Max. Unit
Power supply (Positive)
VCC−GND
5
−
7.3
V
Power supply (Negative) VEE−GND −5
−
−7.3
V
Rev.A
1/2