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參數(shù)資料
| 型號： | AK4254 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Capacitor-less Video Amp with 7:2 Video Switch |
| 中文描述： | 電容器的視頻放大器以7:2視頻開關(guān) |
| 文件頁數(shù)： | 6/22頁 |
| 文件大?。?/td> | 341K |
| 代理商： | AK4254 |
ASAHI KASEI
[AK4254]
MS0586-E-01
2007/08
- 6 -
ANALOG CHARACTERISTICS
(Ta = 25
°
C; AVDD=CVDD1=CVDD2=3.0V; unless otherwise specified. Note: 5, Note: 6)
Parameter
Gain
Input=0.3Vp-p, 100kHz
Response at 6MHz
Response at 27MHz
Input=0.3Vpp, Sin Wave
(0dB at 100kHz)
Group Delay Distortion
|GD3MHz - GD6MHz|
Dynamic Output Signal
f=100kHz, maximum with distortion < 1.0%.
Inter channel Isolation
f=4.43MHz, 1Vp-p input
S/N
Reference Level = 0.7Vp-p,
BW= 100kHz to 6MHz.
Differential Gain
0.7Vpp 5steps modulated staircase.
Chrominance & burst are 280mVpp, 4.43MHz.
Differential Phase
0.7Vpp 5steps modulated staircase.
Chrominance & burst are 280mVpp, 4.43MHz.
Load Resistance
R1+R2 (Note: 9)
Load Capacitance
C1 (Note: 9)
C2 (Note: 9)
Power Supply Current
Normal Operation
(PDN pin = “H”, Note: 7)
Power-Down Mode
(PDN pin = “L”, Note: 8)
Conditions
min
5.3
-2.0
2.52
-
-
typ
6
-40
max
6.7
+2.0
-20
100
-
-
Units
dB
dB
dB
Frequency Response
10
65
65
ns
Vpp
dB
dB
-
+0.4
-
%
-
+2.5
-
Degree
140
150
-
Ω
pF
pF
400
15
AVDD+CVDD1+CVDD2
20
30
mA
AVDD+CVDD1+CVDD2
10
100
μ
A
Note: 5. Video analog characteristics are measured at the pin directly
.
Note: 6. Input Sync Tip Level=-0.43V
～
-0.14V (It is the difference with Pedestal Level and Sync Tip Level.)
Horizontal Line Sync Pulse=4.0
μ
s
～
5.4
μ
s, Equalizing Pulse=2.0
μ
s
～
2.7
μ
s, Serration Pulse=4.0
μ
s
～
5.4
μ
s
Note: 7.
VIN Black level input, no load
Note: 8. All digital input pins (P/S, I2C/SEL22, CDTI/SDA/SEL21, CCLK/SCL/SEL20, SN/SEL12, CAD1/SEL11,
CAD0/SEL10) are held at AVSS.
Note: 9. Refer to the Figure 2.
VOUT
75
Ω
75
Ω
max: 400pF
(C1)
C1
R1
R2
max: 15pF
(C2)
C2
Figure 2. Load Resistance R1+R2 and Load Capacitance C1/C2
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