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參數(shù)資料
| 型號(hào)： | HA12181FP |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | AM Radio Noise Reduction System |
| 中文描述： | AM收音機(jī)降噪系統(tǒng) |
| 文件頁(yè)數(shù)： | 7/21頁(yè) |
| 文件大小： | 147K |
| 代理商： | HA12181FP |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)當(dāng)前第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)
HA12181FP
Rev.2, Jun. 1997, page 7 of 21
Electrical Characteristics
(Tentative) (V
CC
= 8.2 V, Ta = 25°C, Pin 3 input: Vin = 100
mVrms, f = 1 KHz, Pin 16 input: Vin = 74 dBμ, fc = 450 KHz, fm = 1 KHz, m = 30%)
Item
Symbol
Min
Typ
Max
Unit
Test conditions
Supply current
I
CC
Vout
—
11.0
—
mA
No input signal, IC only
Output voltage
70
95
120
mVrms Pin 3 input only
Total harmonic distortion
THD1
—
0.06
0.3
%
Signal-to-noise ratio
S/N (1)
60
75
—
dB
Pin 3 input Vin = 100 mVrms
(Reference), Rg = 10 K
Pin 3 input Vin = 500 mVrms
Strong input total harmonic
distortion
THD2
—
1.0
2.5
%
Recovered output voltage
V
O
(AF)
S/N (2)
50
78
120
mVrms Pin 16 input only
Recovered output signal-to-
noise-ratio
35
45
—
dB
Noise suppression ratio
NSR
35
46
—
dB
Input the waveform below.
Pin 3 input Vin = 100 mVrms
(Reference) no input sine wave
Pin 16 Input
2ms
100mV
10
μ
s
Figure 1 Input Waveform at Measurement of Noise Suppression Ratio
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