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參數(shù)資料
| 型號： | LP508-SLT |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | AUDIO AMPLIFIER, PDIP8 |
| 封裝： | SLT, 8 PIN |
| 文件頁數(shù)： | 2/4頁 |
| 文件大小： | 80K |
| 代理商： | LP508-SLT |
2
500 - 71 - 9
5
V IN
1kHz
RFA =100K
RL=1K
VOUT
VB=1.3 VDC
RS
3.3K
ITRANS
RMIC
- B
18K
33K
7
8
4
C2
10
3
6
1
2
IMIC
- A
RE
=27.5
RE
IB
C1
10
C3
1.0
IAMP
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
V
OUT
=500mVRMS
57
61
65
dB
Distortion
THD
V
OUT
=500mVRMS
-
1
4
%
Amplifier Current
I
AMP
I
AMP
=
I
A
+ I
MIC
125
195
255
A
Transducer Current
I
TRANS H
R
E
= 27.5
1.1
1.3
1.7
mA
Transducer Current
I
TRANS L
R
E
=
∞
200
275
350
A
Input Referred Noise
IRN
NFB 0.2 to 10 kHz at 12 dB/oct.
-
1
2
V
Stable with Battery Resistance to
-
22
Input Bias Current (pin 3)
I
B
-50
0
50
nA
On Chip Emitter Resistor
R
E
-
100
-
Emitter Bias Voltage (Pin 7)
V
RE
-27
-
mV
Microphone Decoupling Resistor
R
MIC
-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
F unless otherwise stated
Fig. 1 Test Circuit
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