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)： 13/22頁(yè)
文件大?。?/td> 341K
代理商： AK4254
ASAHI KASEI
[AK4254]
MS0586-E-01
2007/08
- 13 -
VOUT1
(VOUT2)
75
Ω
AK4254
0V
75
Ω
Figure 4. Video Signal Output
■
Serial Interface
The AK4254 can select 3-wire Serial mode (I2C pin = “L”) or I
2
C Bus mode (I2C pin =“H”).
1.3-wire Serial mode (I2C pin = “L”)
Internal registers may be written by using the 3-wire μP interface pins (CSN, CCLK and CDTI pins). The data on this
interface consists of a 2-bit Chip address (C1 and C2 are set by CAD1, CAD0pin), Read/Write (Fixed to “1”), Register
address (MSB first, 5bits) and Control data (MSB first, 8bits). If the Chip address matches the setting of the CAD1 pin
and CAD0pin, the AK4254 operation is executed. Each bit is clocked in on the rising edge (“
↑
”) of CCLK. Address and
data are latched on the 16th CCLK rising edge (“
↑
”) after CSN falling edge (“
↓
”). CSN should be set to “H” once after 16
CCLKs for each address. Clock speed of CCLK is 5MHz (max). The value of internal registers are initialized by the PDN
pin = “L”.
CSN
CDTI
CCLK
C1
0
1
2
3
4
5
6
7
8
9
10
11 12
13 14 15
D4
D5
D6
D7
A1
A2
A3
A4
R/W
C0
A0
D0
D1
D2
D3
C1,C0: Chip Address: (C1= CAD1, C0 = CAD0)
R/W: READ/WRITE (Fixed to “1”: WRITE)
A4-A0: Register Address
D7-D0: Control Data
Figure 5. 3-wire Serial mode I/F timing
相關(guān)PDF資料
PDF描述
AK4254VF Capacitor-less Video Amp with 7:2 Video Switch
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AK4317 18BIT SCF DAC WITH ATT & MIXER
AK4317-VF 18BIT SCF DAC WITH ATT & MIXER
AK4319A 18Bit SCF DAC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4254VF 制造商:AKM 制造商全稱:AKM 功能描述:Capacitor-less Video Amp with 7:2 Video Switch
AK4255AET 功能描述:IC VIDEO AMP 16TSSOP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購(gòu)買時(shí)間 標(biāo)準(zhǔn)包裝:1,000
AK4255ET 功能描述:IC VIDEO AMP 16TSSOP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購(gòu)買時(shí)間 標(biāo)準(zhǔn)包裝:1,000
AK426-3 功能描述:CABLE CENTRONICS MALE-MALE 3M RoHS:否 類別:電纜組件 >> D形，Centronics 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 配置:VHDCI 68 位置公型至公型 長(zhǎng)度:10.00'（3.05m） 纜線類型:圓形 - 黑色 屏蔽:屏蔽 樣式:SCSI Ultra 2
AK426-3-R 功能描述:CABLE CENTRONICS MALE-MALE 3M RoHS:是 類別:電纜組件 >> D形，Centronics 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 配置:VHDCI 68 位置公型至公型 長(zhǎng)度:10.00'（3.05m） 纜線類型:圓形 - 黑色 屏蔽:屏蔽 樣式:SCSI Ultra 2
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