AK4632VN AKM [Asahi Kasei Microsystems], AK4632VN Datasheet - Page 6

• Manufacturer Part Number: AK4632VN
• Description: 16-Bit ?? Mono CODEC with ALC & MIC/SPK/Video-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
(AVSS, DVSS, SVSS=0V; Note 1)
Parameter
Power Supplies
Note 1. All voltages with respect to ground
Note 6. The power up sequence between AVDD, DVDD and SVDD is not critical.
Note 7. SVDD = 2.6 ∼ 3.6V when 8Ω dynamic speaker is connected to the AK4632. If SVDD is more than 3.6V when
Note 8. Minimum value is higher value between 2.8V and AVDD[V].
* AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
MS0396-E-00
(Note 6)
8Ω dynamic speaker is connected to the AK4632, the output of Speaker-Amp should be restricted in consideration
of maximum power dissipation as the following.
When the power supplies are partially powered OFF, the AK4632 must be reset by bringing PDN pin “L” after
these power supplies are powered ON again.
SPoMax
SPKMPD : Maximum Power Dissipation of SPK-Amp[mW]
Rmin
Vmax
SPKMPD = 700 – AVDD(max) x 17.5 – VVDD(max) x 12 – SVDD(max) x 27
A = 2 x sqrt(2) x SVDD(max) /
B = A x A – 4 x Rmin x SPKMPD / 1000
Vmax= (A – sqrt(B)) / 2
SPoMax = 1000 x Vmax x Vmax / Rmin
Maximum Output Power of SPK-Amp at B < 0 : No limitation
Maximum Output Power of SPK-Amp at B ≥ 0: This power should be less than or equal to
SPoMax[mW].
Regardless of the condition of B, the distortion of output signal increases, when SPK-Amp output power
exceeds 240mW.
Analog
Digital
Speaker-Amp (Note 7)
Video (Note 8)
Difference
: Maximum permission output voltage of SPK-Amp[Vrms]
: Maximum Output Power of SPK-Amp[mW]
: Minimum Impedance of speaker[Ω]
RECOMMENDED OPERATING CONDITIONS
π
AVDD-DVDD
Symbol
AVDD
DVDD
VVDD
SVDD
- 6 -
2.8 or AVDD
min
-0.3
2.6
2.6
2.6
3.3 / 5.0
3.3 / 5.0
typ
3.3
3.3
0
max
5.25
5.25
3.6
3.6
0.3
[AK4632]
2005/06
Units
V
V
V
V
V