Ordering number : ENN*7890
LA74300FN
Overview
Features
Monolithic Linear IC
Audio Interface for Digital Still Cameras
LA74300FN is an audio interface for digital still cameras.
•
3 lines serial communication, MIC AMP, built-in power source for MIC, ALC
(ALC LEVEL : 3-step switching possible)
•
Record/play LPF (fc = 4kHz : tertiary), LINE output (with SERIAL MUTE function)
•
SPEAKER AMP (supports BEEP input MIX), SERIAL communication control electro VOLUME
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Maximum Power Source Voltage
Allowable Power Consumption
Operating Temperature
Storage Temperature
Symbol
VCC max
Pd max
Topr
Tstg
Ta≤85°C
Conditions
Ratings
5.0
*500
-10 to +85
-55 to +150
Unit
V
mW
°C
°C
*
Substrate mounting condition (30mm×50mm×0.8mm glass epoxy) 2S2P substrate
Allowable Operating Range
at Ta = 25°C
Parameter
Recommended Source Voltage
Symbol
VCCL
VCCD
VCCSP
Allowable Operating Voltage Range
VCCL
VCCD
VCCSP
Conditions
Ratings
3.0
3.0
3.0
2.7 to 3.6
2.7 to 3.6
*2.7 to 3.6
Unit
V
V
V
V
V
V
* Be sure not to exceed Pd max.
91004 JO IM No.7890-1/4
LA74300FN
Electric Characteristics
at Ta = 25°C, VCCL, D, SP = 3.0V, f = 1kHz
Parameter
[Circuit Current]
Non-signal Circuit Current 1
Non-signal Circuit Current 2
Non-signal Circuit Current 3
Non-signal Circuit Current 4
Non-signal Circuit Current 5
Non-signal Circuit Current 6
[REC Output System]
REC Reference Output LEVEL
REC Reference Output
Distortion Rate 1
ALC Characteristic 1
ALC Distortion Rate 1
ALM1
ALMD1
ALC IN, VIN = -28dBV (Reference+16dB),
ALC LEVEL : Reference+10dB
ALC IN, VIN = -28dBV (Reference+16dB),
ALC LEVEL : Reference+10dB
THD : up to quitic.
ALC Characteristic 2
ALC Distortion Rate 2
ALM2
ALMD2
ALC IN, VIN = -12dBV (Reference+32dB),
ALC LEVEL : Reference+10dB
ALC IN, VIN = -12dBV (Reference+32dB),
ALC LEVEL : Reference+10dB
THD : up to quintic.
REC Output Noise Voltage
REC Output Frequency
Characteristic 1
REC Output Frequency
Characteristic 2
REC Output Frequency
Characteristic 3
[LINE Output System]
LINE Reference Output LEVEL
LINE Reference Output
Distortion Rate
LINE Reference Output Noise
Voltage
LINE Max. Output LEVEL
LINE Output Frequency
Characteristic 1
LINE Output Frequency
Characteristic 2
LINE Output Frequency
Characteristic 3
FEQP3
FEQP2
VOML
FEQP1
PB IN, THD (up to quintic) = 1% LEVEL
PB IN, VIN = -10dBV,
Ratio with f = 4kHz/1kHz
PB IN, VIN = -10dBV,
Ration with f = 22kHz/1kHz
PB IN, VIN = -10dBV,
Ratio with f = 100kHz/1kHz
-1
-4.5
VNOL
PB IN, no input, JIS-A Filter
VOL
HDL
PB IN, VIN = -14dBV
PB IN, VIN = -14dBV, THD : up to quintic
-7
-6
0.1
-90
0
-3
-31
-70
-1.5
-25
-60
-5
0.2
-82
dBV
%
dBV
dBV
dB
dB
dB
FEQR3
FEQR2
VNOR
FEQR1
ALC IN no input, JIS-A Filter
ALC IN, VIN = -36dBV,
Ration with f = 4kHz/1kHz
ALC IN, VIN = -36dBV,
Ration with f = 22kHz/1kHz
ALC IN, VIN = -36dBV,
Ration with f = 100kHz/1kHz
-4.5
-82
-3
-31
-70
-68
-1.5
-25
-60
dBV
dB
dB
dB
0.4
1
%
-7
-4
-1
dBV
0.3
0.5
%
-7
VOR
HDR1
ALC IN, VIN = -44dBV
ALC IN, VIN = -44dBV, THD : up to quintic
-15
-14
0.03
-4
-13
0.1
-1
dBV
%
dBV
ICCL1
ICCL2
ICCL3
ICCD1
ICCSP1
ICCSP2
VCCL = 3.0V : FULL drive
VCCL = 3.0V : REC BLOCK
(MIC/ALC/REC AMP) POWER SAVE
VCCL = 3.0V : LINE AMP POWER SAVE
VCCD = 3.0V
VCCSP = 3.0V : SPK POWER ON
VCCSP = 3.0V : SPK POWER SAVE
5.2
2.4
4.8
2.1
1.2
0.3
7.0
3.2
6.4
2.8
2.5
0.6
8.8
4
8.0
3.5
5
0.9
mA
mA
mA
mA
mA
mA
Symbol
Conditions
min
Ratings
typ
max
Unit
[SP Output System] (Measurement by SP load = 8Ω termination)
SP Reference Output LEVEL 1
(Vol.MAX)
SP Reference Output Distortion
Rate
SP Reference Output LEVEL 2
(Vol.TYP)
SP Reference Output LEVEL 3
(Vol.MIN)
SP Reference Output Noise
Voltage
SP Max. Rating Output
VOMSP
PB IN, Vol = MAX, THD = 10% LEVEL
150
VNOSP
VOSP3
VOSP2
THDSP
VOSP1
PB IN, VIN = -14dBV,
Vol = MAX (Serial DATA = 31)
PB IN, VIN = -14dBV, VOL = MAX,
THD : up to quintic
PB IN, VIN = -14dBV,
Vol = TYP (Serial DATA = 12)
PB IN, VIN = -14dBV,
Vol = MIN (Serial DATA = 0), JIS-A Filter
PB IN, no input, Vol = max, JIS-A Filter
-22
-8
-4
0.7
-16
-90
-86
250
0
1.5
-10
-70
-70
dBV
%
dBV
dBV
dBV
mW
Continued on next page.
No.7890-2/4
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