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HA457CN PDF даташит

Спецификация HA457CN изготовлена ​​​​«Intersil Corporation» и имеет функцию, называемую «95MHz/ Low Power/ AV = 2/ 8 x 8 Video Crosspoint Switch».

Детали детали

Номер произв HA457CN
Описание 95MHz/ Low Power/ AV = 2/ 8 x 8 Video Crosspoint Switch
Производители Intersil Corporation
логотип Intersil Corporation логотип 

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HA457CN Даташит, Описание, Даташиты
Data Sheet
HA457
August 1999 File Number 4231.2
95MHz, Low Power, AV = 2, 8 x 8 Video
Crosspoint Switch
The HA457 is an 8 x 8 video crosspoint switch suitable for
high performance video systems. Its high level of integration
significantly reduces component count, board space, and
cost. The crosspoint switch contains a digitally controlled
matrix of 64 fully buffered switches that connect eight video
input signals to any, or all, matrix outputs. Each matrix output
connects to an internal, high-speed (275V/µs), gain of two
buffer capable of driving 150to ±2.5V.
The HA457 will directly drive a double terminated video
cable with some degradation of differential gain and phase.
Applications demanding the best composite video
performance should drive the cable with a unity gain video
buffer, such as the HFA1412 quad buffer (see Figure 7).
This crosspoint’s three-state output capability makes it
feasible to parallel multiple HA457s and form larger switch
matrices.
Pinouts
HA457 (MQFP)
TOP VIEW
Features
• Pin Compatible, Cable Driving Upgrade for HA456 and
MAX456
• Fully Buffered Inputs and Outputs (AV = +2)
• Routes Any Input Channel to Any Output Channel
• Switches Standard and High Resolution Video Signals
• Serial or Parallel Digital Interface
• Expandable for Larger Switch Matrices
• Wide Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . 95MHz
• High Slew Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . 275V/µs
• Low Crosstalk at 10MHz . . . . . . . . . . . . . . . . . . . . -55dB
Applications
• Video Switching and Routing
• Security and Video Editing Systems
Ordering Information
TEMP.
PART NUMBER RANGE (oC)
PACKAGE
HA457CN
0 to 70 44 Ld MQFP
HA457CM
0 to 70 44 Ld PLCC
PKG. NO.
Q44.10x10
N44.65
HA457 (PLCC)
TOP VIEW
A0
IN1
NC
IN2
DGND
NC
IN3
DGND
IN4
EDGE/LEVEL
IN5
144 43
42
41 40
39
38
37 36
35 34
33
2 32
3 31
4 30
5 29
6 28
7 27
8 26
9 25
10 24
11 23
12 13 14 15 16 17 18 19 20 21 22
OUT2
V-
OUT3
AGND
OUT4
NC
AGND
OUT5
AGND
OUT6
V+
A0
IN1
NC
IN2
DGND
NC
IN3
DGND
IN4
EDGE/LEVEL
IN5
6 5 4 3 2 1 44 43 42 41 40
7 39
8 38
9 37
10 36
11 35
12 34
13 33
14 32
15 31
16 30
17 29
18 19 20 21 22 23 24 25 26 27 28
OUT2
V-
OUT3
AGND
OUT4
NC
AGND
OUT5
AGND
OUT6
V+
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999









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HA457CN Даташит, Описание, Даташиты
Functional Block Diagram
HA457
IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7
OUTPUT
BUFFERS
(AV = 2)
-
+
EN0
HA457
8x8
SWITCH
MATRIX
OUT0
SER/PAR
D0/SER IN
EN0:7
SLAVE REGISTER
MASTER REGISTER
A0 A1 A2
D2 D3
-
+
EN7
OUT7
LATCH
EDGE/LEVEL
WR
CE
CE
D1/SER OUT
2









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HA457CN Даташит, Описание, Даташиты
HA457
Pin Descriptions
PIN
MQFP
PLCC
NAME
FUNCTION
3, 6, 17, 28, 39 1, 9, 12, 23, 34
NC No connect. Not internally connected.
40 2 D1/ SER OUT Parallel Data Bit input D1 for parallel programming mode. Serial Data Output (MSB of shift
register) for cascading multiple HA457s in serial programming mode. Simply connect
Serial Data Out of one HA457 to Serial Data In of another HA457 to daisy chain multiple
devices.
41 3 D0/SER IN Parallel Data Bit input D0 for parallel programming mode. Serial Data Input (input to shift
register) for serial programming mode.
42, 43, 1
4, 5, 7
A2, A1, A0 Output Channel Address Bits. These inputs select the output being programmed in parallel
programming mode.
44, 2, 4, 7, 9, 11, 6, 8, 10, 13,
13, 15
15, 17, 19, 21
IN0-IN7
Analog Video Input Lines.
5, 8
11, 14
DGND
Digital Ground. Connect both DGND pins to AGND.
10 16 EDGE/LEVEL A user strapped input that defines whether synchronous channel switching is edge or level
controlled. With this pin strapped high, the slave register loads from the master register
(thus changing the switch matrix state) on the rising edge of the LATCH signal. If it is
strapped low (level mode), the slave register is transparent while LATCH is low, passing
data directly from the master register to the switch state decoders. Strapping EDGE/LEVEL
and LATCH low causes the channel switch to execute on the WR rising edge (not
recommended for serial mode operation).
12, 23, 38
18, 29, 44
V+ Positive supply voltage. Connect all V+ pins together and decouple each pin to AGND
(Figure 6).
14 20 SER/PAR A user strapped input that defines whether the serial (SER/PAR=1) or parallel
(SER/PAR=0) digital programming interface is being utilized.
16, 32
22, 38
V- Negative supply voltage. Connect both V- pins together and decouple each pin to AGND
(Figure 6).
18 24 WR WRITE Input. In serial mode, data shifts into the shift register (Master Register) LSB from
SER IN on the WR rising edge. In parallel mode, the Master Register loads with D3:0 (iff
D3:0=0000 through 1000), or the appropriate action is taken (iff D3:0=1011 through 1111),
on the WR rising edge (see Table 1).
19
25
LATCH
Synchronous channel switch control input. If EDGE/LEVEL = 1, data is loaded from the
Master Register to the Slave Register on the rising edge of LATCH. If EDGE/LEVEL = 0,
data is loaded from the Master to the Slave Register while LATCH = 0. In parallel mode,
commands 1011 through 1110 execute asynchronously, on the WR rising edge,
regardless of the state of LATCH or EDGE/LEVEL. Parallel mode command 1111
executes a software “Latch” (see Table 1).
20 26 CE Chip Enable. When CE = 0 and CE = 1, the WR line is enabled.
21 27 CE Chip Enable. When CE = 0 and CE = 1, the WR line is enabled.
22, 24, 26, 29, 28, 30, 32, 35,
31, 33, 35, 37 37, 39, 41, 43
OUT7-OUT0 Analog Video Outputs.
25, 27, 30
31, 33, 36
AGND
Analog Ground.
34 40 D3 Parallel Data Bit Input D3 when SER/PAR = 0. D3 is unused with serial programming.
36 42 D2 Parallel Data Bit Input D2 when SER/PAR = 0. D2 is unused with serial programming.
3










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Номер в каталогеОписаниеПроизводители
HA457CM95MHz/ Low Power/ AV = 2/ 8 x 8 Video Crosspoint SwitchIntersil Corporation
Intersil Corporation
HA457CN95MHz/ Low Power/ AV = 2/ 8 x 8 Video Crosspoint SwitchIntersil Corporation
Intersil Corporation

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