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PDF HA457 Data sheet ( Hoja de datos )
| Número de pieza | HA457 | |
| Descripción | 95MHz/ Low Power/ AV = 2/ 8 x 8 Video Crosspoint Switch | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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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 150Ω to ±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
1 page  
HA457
Electrical Specifications VSUPPLY = ±5V, AGND = DGND = 0V, RL = 400Ω (Note 2), Unless Otherwise Specified. (Continued)
PARAMETER
TEST CONDITIONS
(NOTE 3)
TEST TEMP
LEVEL (oC)
MIN
TYP MAX UNITS
Digital Input Low Voltage
A Full - - 0.8 V
Digital Input High Voltage
A
25 2.0
-
-
V
A
Full 2.2
-
-
V
SER OUT Logic Low Voltage
SER OUT Logic High Voltage
SER OUT Leakage Current
Serial Mode, IOL = 1.6mA
Serial Mode, IOH = -0.4mA
Output Disabled, VOUT = 2.5V
A Full - - 0.4 V
A
Full 3.0
-
-
V
A 25 - 0.2 5 µA
A Full - 1 10 µA
AC CHARACTERISTICS (Note 4)
-3dB Bandwidth (Note 6)
VOUT = 200mVP-P
B 25 - 95 - MHz
VOUT = 1VP-P
B 25 - 75 - MHz
VOUT = 2VP-P
B 25 - 60 - MHz
VOUT = 2VP-P, RL= 150Ω
B 25 - 50 - MHz
Slew Rate (Note 6)
VOUT = 4VP-P, RL = 150Ω
B 25 - 275 - V/µs
All Hostile Crosstalk (Note 6)
10MHz, VIN = 1VP-P, RL = 150Ω
B
25 - -55 -
dB
10MHz, VIN = 1VP-P, RL = 1kΩ
B
25 - -58 -
dB
All Hostile Off Isolation (Note 6)
10MHz, VIN = 1VP-P, RL = 150Ω
B
25 - 95 -
dB
10MHz, VIN = 1VP-P, RL = 1kΩ
B
25 - 75 -
dB
Differential Phase
NTSC or PAL, RL = 150Ω
B 25 - 0.5 - DEG
NTSC or PAL, RL = 1kΩ
B 25 - 0.05 - DEG
NTSC or PAL, RL ≥ 10kΩ
B 25 - 0.05 - DEG
Differential Gain
NTSC or PAL, RL = 150Ω
B
25 - 0.05 -
%
NTSC or PAL, RL = 1kΩ
B
25 - 0.05 -
%
NTSC or PAL, RL ≥ 10kΩ
B
25 - 0.02 -
%
TIMING CHARACTERISTICS (See Figure 8 for more information)
Write Pulse Width High (tWH)
Write Pulse Width Low (tWL)
Chip-Enable Setup Time to Write (tCS)
Chip-Enable Hold Time From Write (tCH)
Data and Address Setup Time to Write (tDS)
Parallel Mode
Serial Mode
A
Full 20
-
-
ns
A
Full 20
-
-
ns
A Full 5 - - ns
A Full 5 - - ns
A
Full 20
-
-
ns
A
Full 20
-
-
ns
Data and Address Hold Time From Write (tDH)
A
Full 25
-
-
Latch Pulse Width (tL)
A
Full 40
-
-
Latch Delay From Write (tD)
A
Full 40
-
-
LATCH Edge to Output Disabled (tOFF)
Serial Mode
B Full - 30 -
LATCH Edge to Output Enabled (tON)
Serial Mode
B Full - 185 -
Output Break-Before-Make Delay
(tON - tOFF)
Serial Mode
B Full - 155 -
NOTES:
2. For the lowest crosstalk, and the best composite video performance, use RL ≥ 1kΩ.
3. Test Level: A. Production Tested; B. Typical or Guaranteed Limit Based on Characterization; C. Design Typical for Information Only.
ns
ns
ns
ns
ns
ns
4. See AC Test Circuits (Figure 1 through Figure 4).
5. Excludes D1/SER OUT which is a bidirectional terminal and thus falls under the higher Output Leakage limit.
6. See Typical Performance Curves for more information.
5
5 Page 
HA457
Typical Performance Curves VSUPPLY = ±5V, TA = 25oC, RL = 150Ω, Unless Otherwise Specified
1.75
1.50
1.25
1.0
0.75
0.50
0.25
4.0
3.0
2.0
1.0
0
-1.0
-2.0
0
-0.25
TIME (20ns/DIV.)
FIGURE 11. SMALL SIGNAL PULSE RESPONSE
-3.0
-4.0
TIME (20ns/DIV.)
FIGURE 12. LARGE SIGNAL PULSE RESPONSE
3
GAIN
0
-3
-6
PHASE
1
VOUT = 0.2VP-P
VOUT = 1VP-P
VOUT = 2VP-P
VOUT = 2VP-P
VOUT = 1VP-P
VOUT = 0.2VP-P
10
FREQUENCY (MHz)
100
0
45
90
135
180
200
FIGURE 13. FREQUENCY RESPONSE
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
1
VOUT = 1VP-P
VOUT = 0.2VP-P
10
FREQUENCY (MHz)
FIGURE 14. GAIN FLATNESS
100 200
3
GAIN
0
-3
-6
PHASE
RL= 400Ω
1
VOUT = 0.2VP-P
VOUT = 1VP-P
VOUT = 2VP-P
VOUT = 0.2VP-P
VOUT = 1VP-P
VOUT = 2VP-P
10
FREQUENCY (MHz)
100
0
45
90
135
180
200
FIGURE 15. FREQUENCY RESPONSE
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
RL= 400Ω
1
VOUT = 1VP-P
VOUT = 0.2VP-P
10
FREQUENCY (MHz)
100 200
FIGURE 16. GAIN FLATNESS
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet HA457.PDF ] | |
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