參數(shù)資料
型號(hào)： 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(kāi)關(guān)
文件頁(yè)數(shù)： 3/22頁(yè)
文件大?。?/td> 341K
代理商： AK4254
[AK4254]
MS0586-E-01
2007/08
- 3 -
PIN/FUNCTION
No.
1
Pin Name
CVDD1
I/O
-
Function
Charge Pump Power Supply pin, 2.7V
～
3.6V
Positive Charge Pump Capacitor Terminal 1 Pin.
Connect to CN1 with a 1.0
μ
F capacitor that has the low ESR (
Equivalent Series
Resistance
) over all temperature range. When this capacitor has the polarity, the
positive polarity pin should be connected to the CP pin. Non polarity capacitors can also
be used.
Negative Charge Pump Capacitor Terminal 1 Pin
Connect to CP1 with a 1.0
μ
F capacitor that has the low ESR (
Equivalent Series
Resistance
) over all temperature range. When this capacitor has the polarity, the
positive polarity pin should be connected to the CP pin. Non polarity capacitors can also
be used.
Charge Pump Ground Pin, 0V
Connect to VEE1 with a 1.0
μ
F capacitor that has the low ESR (
Equivalent Series
Resistance
) over all temperature range. When this capacitor has the polarity, the
positive polarity pin should be connected to the CVSS1 pin. Non polarity capacitors can
also be used.
Negative Voltage Output Pin for Video Amplifier 1
Connect to CVSS1 with a 1.0
μ
F capacitor that has the low ESR (
Equivalent Series
Resistance
) over all temperature range. When this capacitor has the polarity, the
positive polarity pin should be connected to the CVSS1 pin. Non polarity capacitors can
also be used.
Video Output #1 Pin
Analog Power Supply Pin, 2.7V
～
3.6V
Analog Ground Pin, 0V
Test Pin
This pin should be connected to AVSS.
Parallel/Serial Control Mode Pin
“L”: Serial Control Mode, “H”: Parallel Control Mode
Video Input #1 Pin
Video Input #2 Pin
Video Input #3 Pin
Video Input #4 Pin
Video Input #5 Pin
Video Input #6 Pin
Video Input #7 Pin
Chip Address 0 in Serial Control Mode
Input Selector 1 Control #0 Pin in Parallel Control Mode
Chip Address 1 in Serial Control Mode
Input Selector 1 Control #1 Pin in Parallel Control Mode
Chip Select Pin in Serial Control Mode, I2C pin = “L”
This pin should be connected to AVSS in Serial Control Mode. I2C pin =“H”
Input Selector 1 Control #2 Pin in Parallel Control Mode.
Control Data Clock Pin in Serial Control Mode, I2C pin = “L”
Control Data Clock Pin in Serial Control Mode, I2C pin = “H”
Input Selector 2 Control #0 Pin in Parallel Control Mode
Control Data Input Pin in Serial Control Mode, I2C pin = “L”
Control Data Pin in Serial Control Mode, I2C pin = “H”
Input Selector 2 Control #1 Pin in Parallel Control Mode.
Control Mode Select Pin in Serial Control Mode
“L”: 3-wire Serial Mode, “H”: I
2
C Bus mode
Input Selector 2 Control #2 Pin in Parallel Control Mode
2
CP1
O
3
CN1
I
4
CVSS1
-
5
CVEE1
O
6
7
8
VOUT1
AVDD
AVSS
O
-
-
9
TEST
I
10
P/S
I
11
12
13
14
15
16
17
VIN1
VIN2
VIN3
VIN4
VIN5
VIN6
VIN7
CAD0
SEL10
CAD1
SEL11
I
I
I
I
I
I
I
I
I
I
I
18
19
CSN
I
20
SEL12
CCLK
SCL
SEL20
CDTI
SDA
SEL21
I
I
I
I
I
21
I/O
I
22
I2C
I
23
SEL22
I
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