LC550 データシートの表示（PDF） - Gennum -> Semtech
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LC550 Datasheet PDF : 6 Pages
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ABSOLUTE MAXIMUM RATINGS
PIN CONNECTION
PARAMETER
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
VALUE/UNITS
3V
60mW
-10°C to 60°C
-20°C to 70°C
VMIC 6
OUT A 7
IN A 8
VB 9
GND 10
5 OUT B2
4 DEC B2
3 IN B
2 DEC B1
1 OUT B1
CAUTION
ELECTROSTATIC
SENSITIVE DEVICES
DO NOT OPEN PACKAGES OR HANDLE
EXCEPT AT A STATIC-FREE WORKSTATION
CAUTION
LEVEL 3 MOISTURE
SENSITIVE DEVICES
DO NOT OPEN PACKAGES EXCEPT UNDER
CONTROLLED CONDITIONS
ELECTRICAL CHARACTERISTICS
All switches remain as shown in Test Circuit
Conditions: Supply voltage VB= 1.3VDC, Temperature ambient = 25°C, Ground line resistance 0.03Ωmax., Volume control setting max. gain
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Gain
Total Current (including ΙMIC)
AV
Output Level 0.707VRMS
ΙTOT
S1 - open
59
63
67
dB
-
350
475
µA
Input Referred Noise
IRN
NFB 0.2 to 10kHz at 12dB/Oct
-
1.5
3
µV
Total Harmonic Distortion
THD
Output Level 0.707VRMS
-
3.5
7.5
%
O/P Swing at 7% Distortion
Stable with Battery Resistance to:
S4 - open
-
1.4
-
VRMS
-
-
60
Ω
Preamp O/P Impedance
-
1.1
-
kΩ
Preamp I/P Impedance
-
30
-
kΩ
O/P Stage O/P Impedance
-
110
-
Ω
O/P Stage I/P Impedance
18
27
34
kΩ
Start-Up Time
Refer to start up test sequence
-
-
3
sec
START-UP TEST SEQUENCE
SEQUENCE
CONDITIONS
COMMENT
Power Supply
Off
S1
Open
Removes VIN
S2 / S3
Closed
Discharges C2 & C3
S1
Closed
Applies VIN (VIN level is determined from Gain Test)
S2 / S3
Open
Removes Short from C2 and C3
Power Supply
On
Gain must be within specification, within 3 seconds after Power Supply is turned on
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