Gennum GX4314LCKC Gx4314l low power, wideband 4 x 1 video multiplexer Datasheet

GX4314L Low Power, Wideband
4 x 1 Video Multiplexer
DATA SHEET
FEATURES
DESCRIPTION
• low power; 12 mA ON current at ±5 volts
The GX4314L is a low power, wideband video multiplexer
implemented in bipolar technology. This device is characterized
by excellent differential gain and phase in the enabled
state, very high off-isolation in the disabled state and a
fully buffered, unilateral signal path.
• low differential gain and phase
• wide bandwidth; 100 MHz at -1 dB
• ±4.5 to ±11 volt power supplies
• available in 14 pin PDIP as well as 14 and 16
pin SOIC packaging
• identical functions and pin outs to GX4314 with lower
power
Logic inputs are TTL and 5 V CMOS compatible, providing
address and chip select functions. The operation of the
device is described in the Truth Table below.
FUNCTIONAL BLOCK DIAGRAM
The GX4314L offers pin for pin compatibility with Gennum's
other 4x1 multipliers such as GX414, GX414A and GX434
with greatly improved bandwidth and slew rate. Since the
GX4314L is capable of operation at ± 5 V supplies, system
power can be reduced.
X
IN 0
IN 1
Make-before-break switching assures virtually glitch-free
switching. The GX4314L features a very high, nearly constant
input impedance coupled with high output impedance in
the disabled state. This allows multiple devices to be
paralleled at the inputs and outputs without additional
circuitry.
X
X
IN 2
X
OUTPUT
X
IN 3
Typically, the ON current is only 12 mA while the chip
disabled current drops to less than 260 µA. This feature
allows the use of many devices in high density situations
without excessive power dissipation.
APPLICATIONS
CHIP
SELECT
2 TO 4 DECODER LOGIC
• Multimedia
• Computer graphics.
• Very high density video switching.
A0
A1
CS
TRUTH TABLE
• PCM / data routing.
ORDERING INFORMATION
CS
A1
A0
Output
Part Number
Package Type
Temperature Range
0
0
0
Input 0
GX4314LCDB
14 pin PDIP
0oC to 70oC
0
0
1
Input 1
GX4314LCKB
14 pin SOIC
0oC to 70oC
0
1
0
Input 2
GX4314LCKC
16 pin SOIC
0oC to 70oC
0
1
1
Input 3
1
X
X
High - Z
GX4314LCTC
Tape16 pin SOIC
0oC to 70oC
X = don't care
Revision Date: February 1994
Document No. 520 - 54 - 2
GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. (905) 632-2996 fax: (905) 632-5946
Gennum Japan Corporation:C-101 Miyamae Village, 2-10-42 Miyamae, Suginami-ku Tokyo 168-0081, Japan tel. (03) 3334-7700 fax: (03) 3247-8939
ABSOLUTE MAXIMUM RATINGS
PIN CONNECTIONS
Parameter
± 13.5V
Supply Voltage
-65°C ≤ TS ≤ 150° C
Storage Temperature Range
Lead Temperature (Soldering, 10 Sec)
Analog Input Voltage
NC
IN 1
A1
IN 1
A0
GND
CS
GND
A1
IN 2
CS
OUT
GND
NC
GND
IN 3
VEE
IN 3
NC
NC
VEE
14 PIN DIP &
14 PIN NARROW
SOIC
OUT
16 PIN WIDE SOIC
VS = ± 8 V DC, 0°C ≤ T A ≤ 70°C, RL = 10kΩ, C L = 30 pF, unless otherwise shown
Supply Voltage
SYMBOL
MIN
TYP
MAX
± 4.5
-
± 11
CS = 0
-
12
15
mA
I-
CS = 0
-
12
15
mA
I+
CS = 1
-
270
350
µA
-
CS = 1
-
350
600
µA
-2.4
-
+3.6
V
-
5
-
µA
-10
-3
+4
mV
-
15
60
µV/°C
-
350
500
ns
0.6
1.0
-
µs
2.0
-
-
0.8
V
V
-
-
4
µA
0.035
0.047
0.060
dB
-
200
-
MHz
At -1 dB flattened, RS = 27Ω
100
-
-
MHz
± VS
I
Supply Current
I
+
CONDITIONS
Operating Range
Analog Output Voltage Swing
VOUT
Analog Input Bias Current
I BIAS
Output Offset Voltage
V OS
Output Offset Voltage Drift
∆V OS
Chip Enable Time
t ON
Enable input to appearance of signal
Chip Disable Time
t OFF
Logic Input Thresholds
V IH
V IL
Enable input to disappearance
of signal at output.
V IH = 1
V IL = 0
Logic Input Current
IL
Insertion Loss
I.L.
1V p-p sine or sq. wave at 100 kHz
Bandwidth (-3dB)
B.W.
Small signal C L = 0 pF
Frequency Response
Extremes before clipping occurs
TA = 25°C
UNITS
V
Input Resistance
RIN
Chip enabled
1.0
-
-
MΩ
Input Capacitance
CIN
Chip enabled
-
1.5
-
pF
Output Resistance
R OUT
Chip enabled
-
18
-
Ω
Output Capacitance
COUT
Chip enabled
-
-
5
pF
Differential Gain
dg
At 3.58 MHz
-
-
0.03
%
Differential Phase
dp
At 3.58 MHz
-
-
0.02
deg
All Hostile Crosstalk
XTLK AH 30 MHz R IN = 10Ω
70
-
-
dB
Chip Disabled Crosstalk
XTLK CD At 100 MHz
-
80
-
dB
Slew Rate
+SR
V IN = 1V p-p (CL = 10 pF)
600
900
-
V/µs
-SR
V IN =1V p-p (CL = 10 pF)
225
300
-
V/µs
␣ DYNAMIC
Gain Spread at 30 MHz
Crosspoint Scatter
520 - 54 - 2
GND
-0.5V ≤ VL ≤ +5.5V
PARAMETER
␣
VCC
GND
(VEE - 1.4) or -7.5<VA< (Vcc+ 0.3)
or ( VEE+ 15) V
ELECTRICAL CHARACTERISTICS
LOGIC
IN 0
A0
IN 2
260° C
Logic Input Voltage
STATIC
IN 0
VCC
0°C ≤ TA ≤ 70° C
Operating Temperature Range
DC
␣ SUPPLY
GX4314L
Value
∆AV
-
-
± 0.05
dB
R S = 75 Ω
o
TA = 25 C
-
-
± 0.15
deg
ƒ = 3.58 MHz
0 oC< TA< 70oC
-
-
± 0.25
deg
2
TYPICAL PERFORMANCE CURVES FOR GX4314L
(V S = ± 5V DC, T A ≤ 25°C, CL = 30 pF, unless otherwise shown.)
0.2
-20
R =27Ω
S
C =30pF
0.1
-0.1
GAIN (dB)
-40
ISOLATION & XTALK (dB)
L
0.0
-0.2
-0.3
-0.4
-0.5
-0.6
RIN=10Ω
-60
RIN=75Ω
-80
CHIP OFF ISOLATION
RL=10Ω
-100
-0.7
-0.8
-120
1
10
1
80
10
Fig. 1 Flattened Frequency Response
Fig. 2 All Hostile Crosstalk & Isolation
2.0
4.5
1.9
4.4
4.3
1.7
CAPACITANCE (pF)
CAPACITANCE (pF)
1.8
1.6
DISABLED
1.5
1.4
ENABLED
1.3
1.2
C =0pF
L
1.1
4.2
4.1
V =± 4.5V
S
4.0
3.9
3.8
V =± 11.5V
S
3.7
3.6
1.0
3.5
1
10
100
200
-1.0
-0.8 -0.6 -0.4
FREQUENCY (MHz)
-0.2
0.0
0.2
0.4
0.6
0.8
Fig. 4 Output Capacitance
1
0.025
75
0.020
+5V
GX4314 L
VIDEO IN 0
0.030
14
2
0.1
+8V
13
A0
3
12
A1
4
11
CS
0.1
VIDEO IN 1
dg
0.015
75
0.010
VIDEO IN 2
0.005
5
75
0.000
1.0
BIAS VOLTAGE (V)
Fig. 3 Input Capacitance
dg ( % ), dp ( deg )
100
FREQUENCY (MHz)
FREQUENCY (MHz)
4
10
6
9
dp
1
CLC110
8
5
10k
NC
VIDEO
OUT
VIDEO IN 3
-0.005
7
8
-0.010
1
3
5
0.1
75
10
FREQUENCY (MHz)
-8V
Fig. 5 Differential Gain & Phase
0.1
-5V
All resistors in ohms. all capacitors
in microfarads unless otherwise stated.
Fig. 6 Test Circuit
3
520 - 54 - 2
GX4314L SWITCHES
VIDEO INPUTS
0.1
1 IN 0
V0
2
3
4
5
6
7
V1
V2
V3
75
GND
IN 1
GND
IN 2
GND
IN 3
BINARY ADDRESS
DECODER
+5V
+V 14
13
A0
A 1 12
CS 11
10
OUT
9
NC
-V 8
A0
A1
4
0.1
75
75
75
0.1
-5V
5
+5V
6
3
A2
2
1
2
74HC139
A3
1
ENABLE
7
1
2
3
4
5
6
7
V4
V5
V6
V7
75
GND
IN 2
GND
IN 3
+V 14
A 0 13
A 1 12
11
CS
10
OUT
NC 9
-V 8
-5V
V9
V 10
V 11
75
IN 1
GND
IN 2
GND
IN 3
+5V
3
14
+V
13
A0
A 1 12
CS
OUT
NC
-V
100
11
10
9
8
2
0.1
+
7
-
4
6
VIDEO
75 OUTPUT
250
300
500
0.1
0.1
75
75
IN 0
GND
2-10pF
+5V
0.1
1
2
3
4
5
6
7
+5V
0.1
330
75
V8
16
8
0.1
75
75
IN 0
GND
IN 1
-5V
75
0.1
-5V
CURRENT- FEEDBACK
+5V
OPAMP
1
14
IN 0
+V
13
2
GND A 0
12
3
A1
IN 1
4 GND
11
CS
10
5 IN 2
OUT
9
6 GND
NC
8
7
-V
IN 3
V 12
V 13
V 14
V 15
0.1
75
75
75
75
All resistors in ohms. all capacitors
in microfarads unless otherwise stated.
-5V
Fig. 7 16 x 1 Video Multiplexer Circuit
DOCUMENT
IDENTIFICATION
PRODUCT PROPOSAL
This data has been compiled for market investigation purposes
only, and does not constitute an offer for sale.
ADVANCE INFORMATION NOTE
This product is in development phase and specifications are
subject to change without notice. Gennum reserves the right to
remove the product at any time. Listing the product does not
constitute an offer for sale.
PRELIMINARY DATA SHEET
The product is in a preproduction phase and specifications are
subject to change without notice.
CAUTION
ELECTROSTATIC
SENSITIVE DEVICES
DATA SHEET
The product is in production. Gennum reserves the right to make
changes at any time to improve reliability, function or design, in
order to provide the best product possible.
DO NOT OPEN PACKAGES OR HANDLE
EXCEPT AT A STATIC-FREE WORKSTATION
Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement.
© Copyright June 1992 Gennum Corporation. All rights reserved. Printed in Canada.
520 - 54 - 2
4
Similar pages