參數(shù)資料
型號(hào)： LD512SLT
英文描述： Hearing Aid Amplifier
中文描述： 助聽器放大器
文件頁數(shù)： 2/5頁
文件大?。?/td> 83K
代理商： LD512SLT
2
500 - 75 - 08
1
4
5
8
A IN
V
B
GND
C OUT
C IN
PIN CONNECTION
ABSOLUTE MAXIMUM RATINGS
PARAMETER
VALUE/UNITS
Supply Voltage
5 V DC
Power Dissipation
25mW
Operating Temperature Range
-10
°
C to 40
°
C
Storage Temperature Range -20C to 70C
V
REG
C
AGC
B OUT
V
O
4
V
O
3
V
O
2
V
O
1
-40 dBV
IN
-54 dBV
IN
-74 dBV
IN
-88 dBV
IN
O/P
LEVEL
(dBV)
at PIN 1
Notes:
1.
V
O
and Distortion measurements are taken
at pin 1.
2.
Output stage gain = 20 log (R
F
/ R
S
).
A gain of 14 dB is recommended for
optimal stability. Stability is dependent
upon the ratio of the receiver impedance
(Z
L
) and the battery impedance to R
F
& R
S
.
(R
F
/ R
S
) < (Z
L
/
R
B
)
3.
V
BIAS
= V
P5
- V
P7
4.
Measured at pin 7
CAUTION
CLASS 1 ESD SENSITIVITY
290
0.98
-41
V
O1
+ 11
V
O2
+12
-18
3
4
300
-
-
-
110
0.88
-48
-
V
O2
+ 7
-23.5
-
-
160
3
-
-
200
0.93
-44
-
V
O2
+10
-20
1
2
200
8
100
5
290
0.98
-40
-
V
O2
+13
-17.5
3
4
240
-
-
-
μ
A
V
DC
dBV
dB
dB
dBV
μ
V
RMS
%
mVDC
mA
ms/
μ
F
ms/
μ
F
ELECTRICAL CHARACTERISTICS
Conditions : Temperature 25C, Frequency 1 kHz, Supply Voltage 1.3 VDC.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Amplifier Current
I
AMP
V
REG
Regulator Voltage
Output Level
V
O1
V
IN
= -88 dBV
Output Level
V
O2
V
IN
= -74 dBV
Output Level
V
O3
V
IN
= -54 dBV
Output Level
V
O4
V
IN
= -40 dBV
Input Referred Noise
IRN
NFB 0.2-10kHz at 12dB/oct
Total Harmonic Distortion
THD
V
IN
= -54 dBV
Note 3
Receiver Bias Voltage
V
BIAS
Current Sinking Capability
I
SINK
Note 4
Release Time Factor
T
REL
Attack Time Factor
T
ATT
200
0.93
-44
V
O1
+ 9
V
O2
+10
-20
1
2
200
8
100
5
110
0.88
-47
V
O1
+ 7
V
O2
+ 8
-23
-
-
100
3
-
-
GB512 LD512
All parameters and switches remain as shown in the Test Circuit unless stated in CONDITIONS column.
V
PX
- actual voltage measured on the pin at given condition (X is pin number).
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