MAX456 Просмотр технического описания (PDF) - Maxim Integrated
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MAX456 Datasheet PDF : 12 Pages
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8 x 8 Video Crosspoint Switch
ELECTRICAL CHARACTERISTICS
(V+ = 5.0V, V- = -5.0V, -1.3V ≤ VIN ≤ +1.3V, LOAD = +5V, internal load resistors on, AGND = DGND = 0V, TA = +25°C,
unless otherwise noted.)
PARAMETER
XDYNAMIC SPECIFICATIONS (Note 1)
CONDITIONS
MIN
TYP
MAX
UNITS
Output-Buffer Slew Rate
Single-Channel Crosstalk
All-Channel Crosstalk
All-Channel Off Isolation
-3dB Bandwidth
Differential Phase Error
Differential Gain Error
Internal load resistors on, 10pF load
5MHz, VIN = 2VP-P (Note 2)
5MHz, VIN = 2VP-P (Notes 2, 3)
5MHz, VIN = 2VP-P (Note 2)
10pF load, VIN = 2VP-P (Note 2)
(Note 4)
(Note 4)
250
60
70
57
80
25
35
1.0
0.5
V/µs
dB
dB
dB
MHz
deg
%
Input Noise
Input Capacitance
DC to 40MHz
All buffer inputs grounded
0.3
1.0
6
mVRMS
pF
Buffer Input Capacitance
Additional capacitance for each out-
put buffer connected to channel input
2
pF
Output Capacitance
Output buffer off
7
pF
SWITCHING CHARACTERISTICS (Note 1)
(Figure 4, V+ = 5.0V, V- = -5.0V, -1.3V ≤ VIN ≤ +1.3V, LOAD = +5V, internal load resistors on, AGND = DGND = 0V,
TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
Chip-Enable to Write Setup
Write Pulse Width High
Write Pulse Width Low
Data Setup
SYMBOL
tCE
tWH
tWL
tDS
CONDITIONS
Parallel mode
32-bit serial mode
MIN
TYP
MAX
0
80
80
240
160
UNITS
ns
ns
ns
ns
Data Hold
tDH
0
ns
Latch Pulse Width
tL
80
ns
Latch Delay
tD
80
ns
Switch Break-Before-Make Delay
tON - tOFF
15
ns
LATCH Edge to Switch Off
tOFF
LATCH on
35
ns
LATCH Edge to Switch On
tON
50
ns
Note 1: Guaranteed by design.
Note 2: See Dynamic Test Circuits on page 11.
Note 3: 3dB typical crosstalk improvement when RS = 0Ω.
Note 4: Input test signal: 3.58MHz sine wave of amplitude 40IRE superimposed on a linear ramp (0 to 100IRE). IRE is a unit of
video-signal amplitude developed by the International Radio Engineers. 140IRE = 1.0V.
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