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參數(shù)資料
| 型號： | LP508SLT |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 80K |
| 代理商： | LP508SLT |
2
500 - 71 - 9
5
V
IN
1kHz
R
FA
=100K
RL=1K
VOUT
VB=1.3 VDC
RS
3.3K
I
TRANS
R
MIC
- B
18K
33K
7
8
4
C2
10
3
6
1
2
I
MIC
- A
RE
=27.5
RE
IB
C1
10
C3
1.0
I
AMP
RB= 4.75
V
MIC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
VALUE/UNITS
Supply Voltage
5 V DC
Power Dissipation
25 mW
Operating Temperature Range
-10
°
C to 40
°
C
Storage Temperature Range
-20
°
C to 70
°
C
CAUTION
CLASS 1 ESD SENSITIVITY
PIN CONNECTION
1
4
5
8
A IN
GND
A OUT
R
E
B IN
V
B
B OUT
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
Gain (Closed Loop)
A
CL
THD
V
OUT
=500mV
RMS
V
OUT
=500mV
RMS
I
AMP
=
I
A
+
I
MIC
R
E
= 27.5
R
E
=
∞
NFB 0.2 to 10 kHz at 12 dB/oct.
57
61
65
dB
Distortion
-
1
4
%
Amplifier Current
I
AMP
I
TRANS H
I
TRANS L
IRN
125
195
255
μ
A
Transducer Current
1.1
1.3
1.7
mA
Transducer Current
200
275
350
μ
A
Input Referred Noise
-
1
2
μ
V
Stable with Battery Resistance to
-
-
22
Input Bias Current (pin 3)
I
B
R
E
V
RE
R
MIC
-50
0
50
nA
On Chip Emitter Resistor
-
100
-
Emitter Bias Voltage (Pin 7)
-
27
-
mV
Microphone Decoupling Resistor
-
4
-
k
All parameters and switches remain as shown in Test Circuit unless otherwise stated in "Conditions" column
ELECTRICAL CHARACTERISTICS
Conditions: Frequency = 1 kHz, Temperature = 25
°
C, Supply Voltage V
B
= 1.3 VDC
All resistors in ohms, all capacitors in
μ
F unless otherwise stated
Fig. 1 Test Circuit
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