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参数资料
| 型号： | LA7955 |
| 元件分类： | 多路复用及模拟开关 |
| 英文描述： | DUAL 3-CHANNEL, AUDIO/VIDEO SWITCH, PDIP20 |
| 封装： | 0.300 INCH, PLASTIC, DIP-20 |
| 文件页数： | 2/7页 |
| 文件大小： | 95K |
| 代理商： | LA7955 |
LA7955
No.2740-2/7
Operating Conditions at Ta
= 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
12
V
Operating supply voltage range
VCC op
8 to 13.2
V
Electrical Characteristics at Ta
= 25°C, VCC = 12V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Quiescent current
ICC
35
43
57
mA
Video input bias voltage
V1, V3, V7
4.4
4.7
5.0
V
Video output bias voltage
V5, V9
6.2
6.8
7.4
V
Video input impedance
Z1, Z3, Z7
f = 1kHz
15
21
27
k
Ω
Video output impedance
Z5, Z9
f = 1kHz
42
Ω
Video voltage gain
GVV
VIN = 1Vp-p (sine wave), f = 0.1MHz
5.6
6.1
6.6
dB
Video frequency bandwidth
BWV
VIN = 0.7Vp-p (sine wave), -3dB band for 0.1MHz
10
MHz
Output noise voltage
VnV
Rg = 75
Ω, 10MHz band
0.3
1.0
mVrms
Video crosstalk
(between inputs 1 and 2)
CTV1
Rg = 75
Ω, f = 3.58MHz
45
50
dB
Video crosstalk
(between inputs 1/2 and 3)
CTV2
Rg = 75
Ω, f = 3.58MHz
45
50
dB
Video output hum rejection
HRV
f = 50Hz, Rg = 75
Ω
18
23
dB
Audio input bias voltage
V12, V13, V14,
V17, V18, V19
4.5
5.1
5.7
V
Audio output bias voltage
V11, V15,
V18, V20
3.2
3.8
4.4
V
Audio input impedance
(inputs 1 and 2)
Z12, Z13,
Z15, Z19
f = 1kHz
47
68
88
k
Ω
Audio input impedance (input 3)
Z14, Z17
f = 1kHz
51
74
95
k
Ω
Audio output impedance
Z11, Z15,
Z16, Z20
75
Ω
Audio voltage gain
GVA
f = 1kHz, VIN = 500mVrms
-0.5
-0.02
+0.5
dB
Audio frequency bandwidth
BWA
-1dB band (VIN = 500mVrms) for f = 1kHz gain
100
kHz
Total harmonic distortion
THD
f = 1kHz, VIN = 500mVrms
0.03
0.2
%
Output noise voltage
VnA
Rg = 600
Ω, 20Hz to 20kHz bandwidth
10
50
μVrms
Audio crosstalk
(between inputs 1 and 2)
CTA1
Rg = less than 4.7k
Ω,
f = 1kHz (VIN = 500mVrms)
75
90
dB
Audio crosstalk
(between inputs 1/2 and 3)
CTA2
Rg = less than 4.7k
Ω,
f = 1kHz (VIN = 500mVrms)
75
90
dB
Audio crosstalk
(between L and R channels)
CTAS
Rg = 4.7k
Ω, f = 1kHz (VIN = 500mVrms)
72
82
dB
Mute noise
VOAM
f = 1kHz, VIN = 500mVrms
0.02
0.1
mVrms
Audio hum rejection 1
HR1
Input Rg = 4.7k
Ω
40
46
dB
Audio hum rejection 2
HR2
Input open
28
39
dB
Switching control signal input
high threshold voltage
V4TH, V8TH
1.1
1.4
1.7
V
Switching control signal input
leak current
I4L, I8L
-3
μA
Mute input high threshold voltage
V10TH
1.1
1.4
1.7
V
Mute input leak current
I10L
-3
μA
Note : The current flowing to the IC is positive and current from the IC is negative.
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相关代理商/技术参数 |
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| LA7956 | 制造商:Panasonic Industrial Company 功能描述:IC |
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