AK4635 datasheet(6/81 Pages) AKM

6 / 81 page

[AK4635]

Rev. 0.6

2007/10

- 6 -

■ Handling of Unused Pin

The unused I/O pins should be processed appropriately as below.

Classification

Pin Name

Setting

Analog

MIC/MICP, LIN/MICN, MPI, AOUT,

SPP, SPN, VCOC, VIN, VOUT, VSAG

These pins should be open

MCKI, SDTI

These pins should be connected to VSS2

CDTIO

When I2C pin = “H”, These pins should be

connected to VSS2.

Digital

MCKO, SDTO

These pins should be open.

ABSOLUTE MAXIMUM RATINGS

(VSS1-3 =0V; Note 1)

Parameter

Symbol

min

max

Units

Power Supplies:

Analog

Digital

Speaker-Amp

AVDD

DVDD

SVDD

−0.3

4.6

Input Current, Any Pin Except Supplies

IIN

±10

Analog Input Voltage (Note 3)

VINA

−0.3

AVDD+0.3

Digital Input Voltage (Note 4)

VIND

−0.3

DVDD+0.3

Ambient Temperature (powered applied)

−40

°C

Storage Temperature

Tstg

−65

150

°C

Maximum Power Dissipation (Note 2)

400

Note 1. All voltages with respect to ground. VSS21, VSS2 and VSS3 must be connected to the same analog ground plane.

Note 2.When PCB wiring density is 100%. This power is the AK4635 internal dissipation that does not include power of

externally connected speaker.

Note 3. LIN/MICN, MIC/MICP,VIN pins

Note 4. PDN, I2C, CSN/SDA, CCLK/SCL, CDTIO, SDTI, FCK, BICK, MCKI pins

Pull-up resistors at SDA and SCL pins should be connected to (DVDD+0.3)V or less voltage.

WARNING: Operation at or beyond these limits may result in permanent damage to the device.

Normal operation is not guaranteed at these extremes.

RECOMMENDED OPERATING CONDITIONS

(VSS1-3=0V; Note 1)

Parameter

Symbol

Min

typ

max

Units

Power Supplies

(Note 5)

Analog

Digital

Speaker-Amp

AVDD

DVDD

SVDD

2.8 (Note 6)

1.6

2.2

3.3

3.6

4.0

Note 1. All voltages with respect to ground.

Note 5. The power up sequence between AVDD, DVDD and SVDD is not critical. It is not permitted to power DVDD off

when AVDD or SVDD is powered up. When only AVDD or SVDD is powered OFF, the AK4635 must be reset

by bringing the PDN pin “L” after theses power supplies are powered ON again. The power supply current of

DVDD at power-down mode may be increased. DVDD should not be powered OFF while AVDD or SVDD is

powered ON.

Note 6. Video Amp is used (PMV bit = “1”). When Video Amp is not used (PMV bit = “0”), Min. spec of AVDD is 2.2V.

* AKEMD assumes no responsibility for the usage beyond the conditions in this datasheet.

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