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參數(shù)資料
| 型號： | HC1062A |
| 英文描述： | Low Voltage Telephone Speech Transmission Circuit / High/Low Level Mute |
| 中文描述： | 低壓輸電線路電話語音/高/低級別靜音 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 1066K |
| 代理商： | HC1062A |
Page 3 of 6
Value
Typ
Parameter
Symbol
Test Conditions
Min
Max
Unit
Microphone Input
Input Impedance
Differential
Input Impedance
Single
Common Mode
Rejection
Z
I
Between Pin 6 and 7
64
k
Z
I
Between pin 6 ( or 7) and 9
32
k
CMR
82
dB
Voltage Gain
A
V
Between pin 6 ( or 7) and 1
I
LINE
=15mA, R
7
=68 k
f=300 ~ 3400Hz
w.r.t.800Hz
T
amb
= -25 ~ 75
w.r.t. 25
, I
LINE
=50mA
Adjust R7 between Pin 2
and 3
I
LINE
=15mA
THD=10%
I
LINE
=4mA
THD=10%
I
LINE
=15mA, R
7
=68 k
200
between pin 6 and 7
50.5
52
53.5
dB
Gain Variation
with Frequency
Gain Variation
with Temperature
Transmitting Gain
Variation
A
Vf
+0.2
dB
A
VT
+0.2
dB
A
V
-8
0
V
1.7
2.3
V
Transmitting Amp
Output Voltage
V
LN
0.8
V
Output Noise
Voltage
DTMF
Input Impedance
Voltage Gain from
DTMF to LN
Gain Variation
with Frequency
Gain Variation
with Temperature
Receiver
Input Impedance
Input Impedance
Voltage Gain
Gain Variation
with Frequency
Gain Variation
with Temperature
Output Voltage
R
L
=150
Output Voltage
R
L
=450
V
LN
0.27
mV
Z
I
Pin 11
20.7
k
A
V
I
LINE
=15mA
R
7
=68 k
24.0
25.5
27.0
dB
A
Vf
f=300~3400Hz
w.r.t.800Hz
T
amb
=-25~75
w.r.t. 25
+0.2
dB
A
VT
, I
LINE
=50mA
+0.2
dB
Z
I
Z
O
A
V
Pin 10
Pin 4
I
LINE
=15mA, R
L
=300
f=300~3400Hz
w.r.t.800Hz
T
amb
=-25~75
w.r.t. 25
21
4
31
k
29.5
32.5
dB
A
Vf
+0.2
dB
A
VT
,without R
6
I
LINE
=50mA
+0.2
dB
0.22
0.33
V
V
O
THD=2%, I
P
=0mA
Sine wave drive
R
4
=100k
, I
LINE
=50mA
0.30
0.48
V
Output Voltage
V
O
THD=10%, R
4
=100k
I
LINE
=4mA, R
L
=150
Pin 10 open circuit
R
4
=100k
I
LINE
=15mA, R
L
=300
15
mV
Output Noise
Voltage
V
NO
50
uV
Gain Variation
with R4
A
V
Between Pin 4 and 5
-11
0
dB
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