LA7471M 데이터 시트보기 (PDF) - SANYO -> Panasonic
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LA7471M Datasheet PDF : 10 Pages
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LA7471M
Operating Characteristics at Ta = 25°C, VCC = 5.0 V, f = 1.0 kHz, RL = 10 kΩ
Parameter
Symbol
Conditions
min
Current dissipation
Voltage gain
Total harmonic distortion
Maximum output
ICC1
INT MIC in, EXT VCC off, L/Rch
5.5
ICC2
INT MIC in, EXT VCC on, L/Rch
6
VG1
EXT MIC in, L/Rch
27.3
VG2
INT MIC in, Gain CTL Hi, L/Rch
23.8
VG3
INT MIC in, Gain CTL Mi, L/Rch
20.8
VG4
INT MIC in, Gain CTL Lo, L/Rch
17.8
THD
INT MIC in, EXT MIC in
VO = 300 mVrms, L/Rch
INT MIC in, EXT MIC in
VOM
THD = 1%, L/Rch
1.0
Output noise voltage
VNO1
VNO2
EXT MIC in, L/Rch, Rg = 1 kΩ, JIS-A
INT MIC in, L/Rch, Rg = 1 kΩ, JIS-A
Gain CTL Hi, Mi, Lo
Input switch crosstalk
SWCR
INT MIC in → EXT MIC in (Rg = 1 kΩ)
f = 10 kHz, L/Rch
Inter-channel crosstalk
CHCR
INT/EXT MIC, Lch → Rch, Rch → Lch,
f = 10 kHz
Internal microphone power supply
output voltage
VINM
When pin 31 is DC, with 30 kΩ load
2.65
External power supply output voltage
VEXM
When connected to pin 16 (output current)
4.0
External power supply limiter current
ILIM
When connected to pin 16 (output current)
Input switching control voltage
CTLH
High level, pin 29/pin 35 DC
1.3
CTLL
Low level, pin 29/pin 35 DC
0
Input impedance
ZIN
INT/EXT MIC in, L/Rch
60
Output impedance
ZO
Pins 8 and 20
Ratings
typ
8
9
27.8
24.3
21.3
18.3
0.05
1.4
22
16
80
51
2.8
4.5
75
1
Block Diagram
Unit
max
10.5
mA
12
mA
28.3
dB
24.8
dB
21.8
dB
18.8
dB
0.2
%
Vrms
32
µVrms
24
µVrms
70
dB
45
dB
2.95
V
V
30
mA
VCC
V
0.7
V
90
kΩ
5
Ω
Unit (resistance: Ω)
No. 4488-2/10
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