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參數(shù)資料
| 型號(hào)： | MAX4562EEE+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/16頁 |
| 文件大小： | 0K |
| 描述： | IC AUD/VID SWITCH I2C 16-QSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 功能： | 音頻/視頻切換 |
| 電路： | 2 x SPDT - NO，2 x SPST - NO |
| 導(dǎo)通狀態(tài)電阻： | 60 歐姆 |
| 電壓電源： | 單電源 |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-QSOP |
| 包裝： | 管件 |
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 Devices
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-Switches
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).
MAX4562/MAX4563
Serially Controlled, Clickless
Audio/Video Switches
12
______________________________________________________________________________________
Table 3. MAX4562 2-Wire Serial-Interface Data Format
Table 4. MAX4563 3-Wire Serial-Interface
Data Format
SWITCH CONTROL
COMMAND
D1
D3
D0
MSB
LSB
D2
D5
D4
D6
D7
SW3
SW2A
SW4
SW3B
SW1A SW1B
C0
C1
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
1
C1
A1
A0
0
ACK
C0
SW2A SW1B
SW2B
SW3
SW4
ACK
STP
SW2A
ADDRESS BYTE
COMMAND BYTE
MSB
LSB
MSB
LSB
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參數(shù)描述 |
|---|---|
| MAX4562EEE+ | 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 |
| MAX4562EEE+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 |
| MAX4562EEE-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 |
| MAX4563CEE | 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 |
| MAX4563CEE+ | 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 |
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