LA74310LP

No.A0904-2/22

Specifications

Maximum Ratings at Ta=25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

VCC max

4.0

V

Allowable power dissipation

Pd max

Ta

≤80°C *

550

mW

Operating temperature

Topr

-10 to +80

°C

Storage temperature

Tstg

-55 to +150

°C

* Substrate mounting condition (40mm × 50mm × 0.8mm: glass epoxy) 2S2P (Four layers substrate)

Operating Conditions at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

VCC

3.1

V

VCCA

3.0

V

Recommended supply voltage

VCCSP

3.3

V

VCC

2.7 to 3.6

V

VCCA

2.7 to 3.6

V

Allowable operating voltage range

VCCSP

Take care not to exceed Pd max.

2.7 to 3.6

V

Electrical Characteristics of AUDIO Block at Ta=25

°C, VCCA=3.0V, VCCSP=3.3V, f=1kHz, with the VREF

capacitance charging circuit in the OFF MODE

Ratings

Parameter

Symbol

Conditions

min

typ

max

Unit

Circuit current

VCCA current dissipation at no signal 1

ICCA1

VCCA=3.0V

7

9.4

11.8

mA

VCCA current dissipation at no signal 2

ICCA2

VCCA=3.0V: REC BLOCK (MIC/ALC/REC AMP)

POWER SAVE MODE

5

6.7

8.4

mA

VCCA current dissipation at no signal 3

ICCA3

VCCA=3.0V: LINE AMP POWER SAVE MODE

6.5

8.7

10.9

mA

VCCA standby current dissipation

ICCAS

VCCA=3.0V: during standby control

(23PIN=0V application)

1

μA

Current dissipation at no signal 5

ICCSP1

VCCSP=3.3V: SPK POWER ON MODE

1.2

2.5

5

mA

Current dissipation at no signal 6

ICCSP2

VCCSP=3.3V: SPK POWER SAVE MODE

0.05

0.1

mA

VCCSP standby current dissipation

ICCSPS

VCCSP=3.3V: during standby control

(23PIN=0V application)

5.5

10

μA

REC output system

REC reference output LEVEL

VOR

ALC IN, VIN=-49dBV

-16.5

-15.5

-14.5

dBV

REC reference output distortion

HDR

ALC IN, VIN=-49dBV, THD: from 2nd to 5th harmonic

0.05

0.1

%

ALC characteristics 1

ALM1

ALC IN, VIN=-33dBV (standard+16dB)

-11

-8

-5

dBV

ALC distortion 1

ALMD1

ALC IN, VIN=-33dBV (standard+16dB),

THD: from 2nd to 5th harmonic

0.15

0.5

%

ALC characteristics 2

ALM2

ALC IN, VIN=-17dBV (standard+32dB)

-11

-8

-5

dBV

ALC distortion 2

ALMD2

ALC IN, VIN=-17dBV (standard+32dB),

THD: from 2nd to 5th harmonic

0.2

1

%

ALC IN max input level

VINRMX

ALC IN LEVEL at which REC output THD

(from 2nd to 5th harmonic) becomes 3% or less.

-10

dBV

REC output noise voltage

VNOR

ALC IN, no input, JIS-A Filter

-77

-68

dBV

REC output frequency characteristics 1

FEQR1

ALC IN, VIN=-33dBV,

comparison of f=4kHz/1kHz

-5

-3.5

-2

dB

REC output frequency characteristics 2

FEQR2

ALC IN, VIN=-33dBV,

comparison of f=22kHz/1kHz

-33

-25

dB

REC output frequency characteristics 3

FEQR3

ALC IN, VIN=-33dBV,

comparison of f=100kHz/1kHz

-60

-55

dB

Continued on next page.