Datasheet GY4102ACKA, GY4102ACDA Datasheet (Gennum Corporation)



GY4102A Fast Toggling

Video Switch

DATA SHEET

FEATURES

• 20 ns switching time (toggle)

• make-before-break switching

• 100 MHz at

±0.1dB, bandwidth (flattened)

• typically 0.04 dB insertion loss at 1 MHz

• typically 0.03 % differential gain at 3.58 MHz

• typically 0.01 degree differential phase at 3.58 MHz

FUNCTIONAL BLOCK DIAGRAM

IN 0

IN 1

CTRL

CONTROL

LOGIC

OUT

CIRCUIT DESCRIPTION

The GY4102A is a bipolar, monolithic SPDT video switch
incorporating fast control logic. The analog signal path is
characterised by low differential gain, low differential phase
and low insertion loss, coupled with a ±0.1 dB bandwidth
of typically 100 MHz into a 10 pF load, using an external
series resistor.

In demanding video applications the GY4102A features a
typical switching glitch of less than 30 mV over a 3 ns
period. The device offers toggle rates up to 50 MHz. The
control input is TTL and 5 V CMOS compatible.

APPLICATIONS

• Sub-pixel video switching

• Fast data sampling

• Modulation

• Special Effects video switching

PIN CONNECTIONS

TOP VIEW

ABSOLUTE MAXIMUM RATINGS

PARAMETER VALUE

Supply Voltage ±6.0 V
Operating Temperature Range 0°C to 70° C
Storage Temperature Range -65°C to 150° C
Lead Temperature (Soldering, 10 Sec) 260° C

Analog Input Voltage (IN 0, IN 1) VEE <VIN <V

Control Input Voltage Range -5 V < V

CTRL

CC

< VCC+0.3 V

ORDERING INFORMATION

Part Number Package Type Temperature Range

GY4102ACDA 8 pin PDIP 0 - 70oC

GY4102ACKA 8 pin SOIC 0 - 70oC

+0.3 V

IN 0

GND 1

V

IN 1

PIN 1

EE

4

TRUTH TABLE

CTRL OUTPUT
0 IN 0

1 IN 1

AVAILABLE PACKAGING

• 8 pin PDIP

• 8 pin SOIC

8 PIN PDIP
8 PIN SOIC

8

CTRL

GND 2

OUT

V

5

CC

Document No. 520 - 21 - 2

GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. [phone] fax: [phone] telex: 061-8525

Japan Branch: B-210 Miyamae Village, 2-10-42 Miyamae, Suginami-ku, Tokyo 168, Japan tel. [phone] fax: [phone]

ELECTRICAL CHARACTERISTICS

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

(V

= ±5V DC, TA = 0 - 70°C, CL = 10pF, RL = 10 kΩ unless otherwise shown)

S

Supply Voltage ±V

S

4.5 5 5.5 V

DC Supply Current I+ -2330mA
SUPPLY I- -2532mA

Control Input Bias I

LOGIC Logic Level threshold V

CTRL

LOGIC

Control = 1 - 5 25 µA

1 2 - - V

0 - - 0.8 V

Analog Input I

BIAS

Selected channel - 12 30 µA

Bias Current Deselected channel - 26 60 µA
Signal Voltage Swing V

STATIC Output Offset Voltage V

Output Offset Voltage V

SIG

OS

OSCH-CHTA

Extremes before clipping occurs -1.5 - +3 V
TA = 25°C -6 +4 +14 mV

= 25°C channel to channel - 1 5 mV

Output Offset Drift ∆VOS/T - +93 +200 µV/°C

Input Resistance R

Input Capacitance C

IN

IN

Channel On 500 - - kΩ

Channel On 1.3 - - pF

Frequency Response DC - 100 MHz RS = 33 Ω - ± 0.2 - dB

DYNAMIC Flatness DC - 8 MHz RS = 33 Ω - - ± 0.01 dB

Insertion Loss I.L. ƒ = 1 MHz - 0.04 - dB

Differential Gain dg ƒ = colorburst 3.58 or 4.43 MHz - 0.03 - %

Differential Phase dp ƒ = colorburst 3.58 or 4.43 MHz - 0.01 - degrees
Crosstalk (all hostile) XTALKAHƒ = 10 MHz see fig. 3 75 80 - dB

Slew Rate +SR 400 620 - V/µs

-SR V

= 2 Vp-p TA = 25°C 250 330 - V/µs

IN

SWITCHING CHARACTERISTICS

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Delay Time t

(see Figure 7) t

Settling Time t
(see Figure 7a) TA = 25° - 9 15 ns

(see Figure 7b) t

Switching Transient * Amplitude - +30 +50 mV

(Unfiltered) Duration - 3 5 ns

* CH0 = CH1 = GND

520 - 21 - 2

(VS = ±5V, TA = 0 - 70°C, CL =10pF, RS = 33 Ω, RL = 10 kΩ)

d (on 1)

t

d (on 2)

d (off 1)

t

d (off 2)

S (on)

To 0.5 IRE on 1 to 0 V output,

S (off)

V

= 0 - 1 V

SIG

V

= 1 - 0 V

SIG

To 0.5 IRE on 0 to 1 V output,

TA = 25°C - 7 15 ns

POS.

Amplitude - -20 -30 mV

NEG.

Duration - 2 3 ns

2

- 5.4 9 ns

- 8.2 13 ns

- 6 11 ns

- 12.5 22 ns

TYPICAL PERFORMANCE CURVES FOR GY4102A

3

2

1

dB

0

-1

-2.0

-3
10 30 100 300

RS = 0 Ω

= 10 kΩ

R

L

FREQUENCY (MHz)

Fig. 1 GY4102A Frequency Response

0

-10

-20

-30

-40

-50

dB

-60

-70

-80

-90

-100

-110

CH-1

CH-0

1 10 100 400

FREQUENCY (MHz)

= 0 pF

C

L

= 10 pF

C

L

C

= 22 pF

L

CL = 33 pF

0.04

0

-0.04
dB

-0.08

-0.12

-0.16

0.05

0.04

0.03

0.02

deg )

0.01
0

-0.01

dg ( % ) dp (

-0.02

-0.03

-0.04

-0.05

= 33 Ω

R

S

= 10 pF

C

L

= 10 kΩ

R

L

1 10 100

FREQUENCY (MHz)

Fig. 2 GY4102A Flattened Frequency Response

dg

dp

1 3 5 10

FREQUENCY (MHz)

Fig. 3 GY4102A Crosstalk vs Frequency

An evaluation board and application note on the GY4102A is available.
Please quote EB4102 for the board and AN 520 - 2 for the application note.
There is no charge for these items.

Fig. 4 GY4102A Differential Gain & Phase

3

520 - 21 - 2

GY4102A TEST CIRCUITS

+5V

1µH

IN-0

IN-1

All resistors in ohms, all capacitors in microfarads unless otherwise stated

1

75

4

23

75

5

GY4102A

7

1µH

0.1

-5V

3K

8

R

6

S

0.1

Fig. 5 Frequency Response

1

5

GY4102A

3

FOR TIME 
DELAY TEST

+1V

FOR
TRANSIENT
TEST

2

4

7

CH-0

CH-1

OUTPUT TO NETWORK 
ANALYSER VIA UNITY
GAIN BUFFER

C

L

+5V

1µH

0.1

A*

8

B*

6

PULSE 

GENERATOR

10K

520 - 21 - 2

0.1

*

USE ULTRA LOW CAPACITANCE SCOPE PROBES AT POINTS A & B

PULSE GENERATOR CHARACTERISTICS tr = tƒ ≤ 1 ns Vo = 5V prr ≤ 20 MHz

All resistors in ohms, all capacitors in microfarads unless otherwise stated

1µH

t

= tƒ ≤ 1 ns Vo = 5 V prr ≤ 20 MHz

r

-5V

Fig. 6 Switching Transient / Time Delays

4

5V

Vthresh=1.5V

0V

Control
Input

1V

99%

1V

0V

t

d (on 1)

99%

t

1%

t

d (on 2) t

Settling 

0V

Time

0.5 IRE

1%

Output

d (off 1)

99%

d (off 2)

99%

0.5 IRE

t

t

s (on)

5A

7A

s (off)

7B

5B

Fig. 7 Delay Time

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

CAUTION

ELECTROSTATIC

SENSITIVE DEVICES

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 February 1991 Gennum Corporation . Revision Date: January 1993. All rights reserved. Printed in Canada.

subject to change without notice.

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.

5

520 - 21 - 2