- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383410 > MAX4562 (Maxim Integrated Products, Inc.) Serially Controlled, Clickless Audio/Video Switches PDF資料下載
參數(shù)資料
| 型號： | MAX4562 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Serially Controlled, Clickless Audio/Video Switches |
| 中文描述： | 串行控制、無喀嗒聲的音頻/視頻開關(guān) |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 219K |
| 代理商： | MAX4562 |
Figures 5 and 6 and the I/O Interface Characteristics
show the timing details of the 3-wire interface. If the two
command bits initiate a SWITCHSET command, a logic
“1” in a switch control location closes the associated
switch, while a logic “0” opens it. If the command bits ini-
tiate a MODESET command, a logic “1” in a switch con-
trol location sets the associated switch into soft
“clickless” mode, while a logic “0” sets it into hard mode.
For command-bit configurations, see Table 1.
Using Multiple Devic es
There are two ways to connect multiple devices to the
same 3-wire serial interface. The first involves using the
DOUT pin. DOUT presents a copy of the last bit of the
internal shift register, useful for daisy-chaining multiple
devices. Data at DOUT are simply the input data
delayed by eight clock cycles, appearing synchronous
with SCLK’s falling edge. After
CS
goes high, DOUT
holds the last bit in the shift register until new data are
shifted into DIN. For a simple interface using several
MAX4563 devices, daisy-chain the shift registers by
connecting DOUT of the first device to DIN of the sec-
ond, etc. Connect the
CS
pins of all devices together.
Data are shifted through the MAX4563 in series. When
CS
is brought high, all devices are updated simultane-
ously. If any of the devices in the chain are to be left
unchanged, use a NO_OP command for that device, as
shown in Table 1.
An alternate way of connecting multiple devices is to
decode the
CS
line. In this case, do not use the DOUT
pin and connect the DIN pins of all devices together.
Address decode logic individually controls the
CS
line
of each device. When a device is to be selected, its
CS
line is brought low, data are shifted in, and its
CS
line is
then brought high to execute the command.
For command bit configuration see Table 1.
T -S witc hes
Configure the MAX4562/MAX4563 as a T-switch to
improve off-isolation. As the signal frequency is in-
creased, parasitic capacitance significantly degrades
the off-isolation. Figure 7 shows a typical T-switch con-
figuration using the MAX4562/MAX4563 to improve off-
isolation. COM2 and COM3 are tied together to create
a single common node. NO2A and NO2B act as the
input and output of the T-switch, while NO3 is tied to
ground. When both SW2A and SW2B are closed, SW3
should be open to allow the signal to pass into NO2A
and out of NO2B. However, when SW2A and SW2B are
open, energy that is coupled through the open switch-
es is shunted to ground through SW3, which should
now be closed. This increases the off-isolation to typi-
cally -68dB at 10MHz (Figure 8).
M
S erially Controlled, Clic kless
Audio/Video S witc hes
12
______________________________________________________________________________________
Table 3. MAX4562 2-Wire Serial-Interface Data Format
Table 4. MAX4563 3-Wire Serial-Interface
Data Format
SWITCH CONTROL
COMMAND
MSB
D7
C1
D1
SW3
D3
D0
SW4
LSB
D2
D5
D4
D6
C0
SW2A
SW3B
SW1A
SW1B
1
SRT
STP = Stop Condition
Logic “0” in any data bit location places the associated switch open or in hard switching mode.
Logic “1” in any data bit location places the associated switch closed or in soft (clickless) switching mode.
See Table 1 for command-bit configuration.
1
0
0
1
C1
A1
A0
0
ACK
C0
SW2A
SW1B
SW2B
SW3
SW4
ACK
STP
SW2A
ADDRESS BYTE
COMMAND BYTE
MSB
LSB
MSB
LSB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4562EEE | Serially Controlled, Clickless Audio/Video Switches |
| MAX4563CEE | Serially Controlled, Clickless Audio/Video Switches |
| MAX4563EEE | Serially Controlled, Clickless Audio/Video Switches |
| MAX4562CEE | Serially Controlled, Clickless Audio/Video Switches |
| MAX456CPL | 8 x 8 Video Crosspoint Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4562CEE | 功能描述:視頻開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX4562CEE+ | 功能描述:視頻開關(guān) IC Clickless A/V Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX4562CEE+T | 功能描述:視頻開關(guān) IC Clickless A/V Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX4562CEE-T | 功能描述:視頻開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX4562EEE | 功能描述:視頻開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。