LA74320FN
No.A0905-2/14
Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage (VCCA)
VCCA
3.0
V
Recommended supply voltage (VCCHP)
VCCHP
3.0
V
Recommended supply voltage (VCCSP)
VCCSP
3.6
V
Allowable operating voltage range (VCCA)
VCCAop
2.7 to 3.6
V
Allowable operating voltage range (VCCHP)
VCCHPop
2.7 to 3.6
V
Allowable operating voltage range (VCCSP)
VCCSPop
*2
2.7 to 5.0
V
*2: Take care not to exceed Pd max.
Electrical Characteristics at Ta=25
°C, VCCA=VCCHP=3.0V, VCCSP=5.0V, f=1kHz, ALC1 LEVEL=-17dBV
MODE, ALC2 LEVEL=-11dBV MODE
Ratings
No.
Parameter
Symbol
Conditions
min
typ
max
Unit
Circuit current
1
VCCA current dissipation
ICCA
VCCA=3.0V, MIC1 ON,
audio source system (stereo) OFF, receiver
system ON
9.5
mA
2
VCCA STANDBY
current dissipation
ICCAS
VCCA=3.0V, 0V applied to STANBDY pin
0
μA
3
VCCHP current dissipation 1
ICCHP1
VCCHP=3.0V:
Receiver SPK AMP POWER SAVE MODE
8.5
mA
4
VCCHP current dissipation 2
ICCHP2
VCCHP=3.0V:
H/P AMP POWER SAVE MODE
2.7
mA
5
VCCHP STANDBY
current dissipation
ICCHPS
VCCHP=3.0V,
0V applied to STANBDY pin
0
μA
6
VCCSP current dissipation 1
ICCSP1
VCCSP=5.0V: SPK POWER ON MODE
12.1
mA
7
VCCSP current dissipation 2
ICCSP2
VCCSP=5.0V: SPK POWER SAVE MODE
0.3
mA
8
VCCSP STANDBY
current dissipation
ICCSPS
VCCSP=5.0V, 0V applied to STANBDY pin
0
μA
MIC output system
9
INT MIC voltage gain
VGIMIC
INT MIC input, VIN=-29dBV
10
dB
10
INT MIC output distortion
HDIMIC
INT MIC input, VIN=-29dBV,
THD: from 2nd to 5th harmonic
0.03
%
11
INT MIC output noise voltage
VNIMIC
INT MIC no input, JIS-A Filter
-100
dBV
12
INT MIC maximum input level
VMIMIC
INT MIC input, INT MIC input level at which up to
5th order distortions of MIC output are reduced to
3% or less
-20
dBV
13
INT MIC supply voltage
VVIMIC
At 6.2k
Ω load
1.7
V
14
EXT MIC voltage gain
VGEMIC
EXT MIC input, VIN=-29dBV
10
dB
15
EXT MIC output distortion
HDEMIC
EXT MIC input, VIN=-29dBV,
THD: from 2nd to 5th harmonic
0.03
%
16
EXT MIC output noise voltage
VNEMIC
EXT MIC no input, JIS-A Filter
-100
dBV
17
EXT MIC maximum input level
VMEMIC
EXT MIC input, EXT MIC input level at which up
to 5th order distortions of MIC output are reduced
to 3% or less
-20
dBV
18
EXT MIC supply voltage
VVEMIC
At 6.2k
Ω load
1.7
V
REC output system: ALC1 level=-17dBV mode
19
REC reference output level
VOREC
ALC1 input, VIN=-40dBV
-16.5
dBV
20
REC reference output distortion
HDREC
ALC1 input, VIN=-40dBV, THD: from 2nd to 5th
harmonic
0.03
%
21
ALC1 level characteristics
VOALC1
ALC1 input, VIN=-14dBV (reference+26dB)
-10
dBV
22
ALC1 distortion characteristics
VDALC1
ALC1 input, VIN=-14dBV (reference+26dB),
THD: from 2nd to 5th harmonic
0.3
%
23
REC output noise voltage
VNOR
ALC1 no input, JIS-A Filter
-83
dBV
24
ALC1 maximum input level
VMXALC
ALC1 input, ALC1 input level at which up to 5th
order distortions of REC output are reduced to
3% or less
-10
dBV
Continued on next page.