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參數(shù)資料
| 型號(hào)： | MAX4357ECD |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | 32 x 16 Nonblocking Video Crosspoint Switch with I/O Buffers |
| 中文描述： | 32-CHANNEL, CROSS POINT SWITCH, PQFP128 |
| 封裝： | 14 X 20 MM, 1.40 MM HEIGHT, MO-136, TQFP-128 |
| 文件頁數(shù)： | 30/42頁 |
| 文件大?。?/td> | 809K |
| 代理商： | MAX4357ECD |
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M
32 x 16 Nonblocking Video Crosspoint Switch
with I/O Buffers
30
______________________________________________________________________________________
Table 1. Operation Truth Table
CE
1
UPDATE
X
SCLK
X
DIN
X
DOUT
X
MODE
X
AOUT
X
RESET
1
OPERATION/COMMENTS
No change in logic.
0
1
↓
D
i
D
i-112
1
1
1
Data at DIN is clocked on negative edge of
SCLK into 112-bit Complete Matrix Mode
register. DOUT supplies original data in
112 SCLK pulses later.
0
0
X
X
X
1
1
1
Data in serial 112-bit Complete Matrix
Mode register is transferred into parallel
latches, which control the switching matrix.
0
1
↓
D
i
D
i
0
1
1
Data at DIN is routed to Individual Output
Address Mode shift register. DIN is also
connected directly to DOUT so that all
devices on the serial bus may be
addressed in parallel.
0
0
X
D
i
D
i
0
0
1
4-bit chip address A3
–
A0 is compared to
D14
–
D11. If equal, remaining 11 bits in
Individual Output Address Mode register
are decoded, allowing reprogramming for
a single output.
AOUT
signals successful
individual matrix update.
X
X
X
X
X
X
X
0
Asynchronous reset. All outputs are
disabled. Other logic remains unchanged.
Analog Inputs
The MAX4357 offers 32 analog input channels. Each
input is buffered before the crosspoint matrix switch,
allowing one input to cross-connect up to 16 outputs.
The input buffers are voltage-feedback amplifiers with
high-input impedance and low-input bias current. This
allows the use of very simple input clamp circuits.
S witc h Matrix
The MAX4357 has 512 individual T-switches making a
32
16 switch matrix. The switching matrix is 100%
nonblocking, which means that any input may be rout-
ed to any output. The switch matrix programming is
output-referred. Each output may be connected to any
one of the 32 analog inputs. Any one input can be rout-
ed to all 16 outputs with no signal degradation.
Digital Interfac e
The digital interface consists of the following pins: DIN,
DOUT, SCLK,
AOUT
,
UPDATE
,
CE
, A3
–
A0, MODE, and
RESET
. DIN is the serial-data input; DOUT is the serial-
data output.
SCLK is the serial-data clock that clocks data into the
data input registers (Figure 3). Data at DIN is loaded in
at each falling edge of SCLK. DOUT is the data shifted
out of the 112-bit Complete Matrix Mode register (Mode
= 1). DIN passes directly to DOUT when in Individual
Output Address Mode (Mode = 0).
The falling edge of
UPDATE
latches the data and pro-
grams the matrix. When using Individual Output
Address Mode, the address recognition output
AOUT
drives low when control-word bits D14 to D11 match
the address programming inputs (A3
–
A0) and
UPDATE
is low (Table 1). Table 1 is the operation truth table.
Programming the Matrix
The MAX4357 offers two programming modes:
Individual Output Address Mode and Complete Matrix
Mode. These two distinct programming modes are
selected by toggling a single MODE pin high or low.
Both modes operate with the same physical board lay-
out. This flexibility allows initial programming of the IC
by daisy-chaining and sending one long data word
Note:
X = Don’t care
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| MAX4357ECD+ | 功能描述:模擬和數(shù)字交叉點(diǎn) IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Micrel 配置:2 x 2 封裝 / 箱體:MLF-16 數(shù)據(jù)速率:10.7 Gbps 輸入電平:CML, LVDS, LVPECL 輸出電平:CML 電源電壓-最大:3.6 V 電源電壓-最小:2.375 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 產(chǎn)品:Digital Crosspoint 封裝:Tube |
| MAX4357ECD+D | 功能描述:模擬和數(shù)字交叉點(diǎn) IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Micrel 配置:2 x 2 封裝 / 箱體:MLF-16 數(shù)據(jù)速率:10.7 Gbps 輸入電平:CML, LVDS, LVPECL 輸出電平:CML 電源電壓-最大:3.6 V 電源電壓-最小:2.375 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 產(chǎn)品:Digital Crosspoint 封裝:Tube |
| MAX4357ECD+T | 功能描述:模擬和數(shù)字交叉點(diǎn) IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Micrel 配置:2 x 2 封裝 / 箱體:MLF-16 數(shù)據(jù)速率:10.7 Gbps 輸入電平:CML, LVDS, LVPECL 輸出電平:CML 電源電壓-最大:3.6 V 電源電壓-最小:2.375 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 產(chǎn)品:Digital Crosspoint 封裝:Tube |
| MAX4357ECD+TD | 功能描述:模擬和數(shù)字交叉點(diǎn) IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Micrel 配置:2 x 2 封裝 / 箱體:MLF-16 數(shù)據(jù)速率:10.7 Gbps 輸入電平:CML, LVDS, LVPECL 輸出電平:CML 電源電壓-最大:3.6 V 電源電壓-最小:2.375 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 產(chǎn)品:Digital Crosspoint 封裝:Tube |
| MAX4357ECD-D | 功能描述:模擬和數(shù)字交叉點(diǎn) IC RoHS:否 制造商:Micrel 配置:2 x 2 封裝 / 箱體:MLF-16 數(shù)據(jù)速率:10.7 Gbps 輸入電平:CML, LVDS, LVPECL 輸出電平:CML 電源電壓-最大:3.6 V 電源電壓-最小:2.375 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 產(chǎn)品:Digital Crosspoint 封裝:Tube |
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