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 Wireless Components
7 x 5 Video Matrix Switch TDA 6920 Version 1.0
Specification August 1999
Revision History: Current Version: 08.99 Previous Version:Data Sheet Page (in previous Version) Page (in current Version) Subjects (major changes since last revision)
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Edition 03.99 Published by Infineon Technologies AG i. Gr., SC, Balanstrae 73, 81541 Munchen (c) Infineon Technologies AG i. Gr. 25.08.99. All Rights Reserved. Attention please! As far as patents or other rights of third parties are concerned, liability is only assumed for components, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies AG is an approved CECC manufacturer. Packing Please use the recycling operators known to you. We can also help you - get in touch with your nearest sales office. By agreement we will take packing material back, if it is sorted. You must bear the costs of transport. For packing material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for any costs incurred. Components used in life-support devices or systems must be expressly authorized for such purpose! Critical components1 of the Infineon Technologies AG, may only be used in life-support devices or systems2 with the express written approval of the Infineon Technologies AG. 1 A critical component is a component used in a life-support device or system whose failure can reasonably be expected to cause the failure of that lifesupport device or system, or to affect its safety or effectiveness of that device or system. 2 Life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or maintain and sustain human life. If they fail, it is reasonable to assume that the health of the user may be endangered.
TDA 6920
Product Info
Product Info
General Description The TDA 6920 switches 7 video input sources to 5 outputs. Each output can be switched to only one input, but one input can be switched to all outputs. The C-input may be combined with one CVBS input as Y for Y+C (S-VHS) operation. Y+C operation is selected by bus.
s
Package
Features
Fast I2C-BUS controlled (max. 400 kHz) Cascadable (2 bus addresses) 7 CVBS inputs, 5 outputs 3 inputs with clamp disable by bus 1 input selectable as Y-input (S-VHS) 1 additional C-input (S-VHS) Y+C operation for S-VHS selected by bus Fully ESD protected -60 dB max. crosstalk at 5 MHz (P-DSO-28 only)
s s
s s
s
Low operating voltage of 7.5 V 5V operation is possible with reduced output signals of max. 2 Vpp 15 MHz minimum bandwidth Noise insensitive clamping inputs low impedance off condition separate for each output Video mixing desks
s s
s s s
s s
Application
s s
Television sets Satellite receivers
s
Ordering Information
Type TDA 6920 TDA 6920X Ordering Code Q67000-A5200 GEG Q67007-A5225 GEG Package P-DIP-18 P-DSO-28
Wireless Components
Product Info
Specification, August 1999
1
Table of Contents
1 2 2.1 2.2 2.3 2.4 3 3.1 3.2 3.3 3.4 3.5 4 4.1 4.1.1 4.1.2 4.1.3 5 5.1 5.1.1 5.1.2 5.1.3 5.2 5.3 5.4 5.5 5.6 5.7 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Pin Definition and Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Block Diagram (P-DSO-28) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Application Circuit P-DSO-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Application Circuit P-DSO-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Application Circuit P-DIP-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 AC/DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Address selection (fast I2C-Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Data selection ( fast I2C-BUS ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Data Mode Selections (fast I2C-Bus) . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 BUS Protocol ( fast I2C-BUS ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Test Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Electrical Diagramms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
2
Product Description
Contents of this Chapter 2.1 2.2 2.3 2.4 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
TDA 6920
Product Description
2.1 Overview
The TDA 6920 switches 7 video input sources to 5 outputs. Each output can be switched to only one input, but one input can be switched to all outputs. The C-input may be combined with one CVBS input as Y for Y+C (S-VHS) operation. Y+C operation is selected by bus.
2.2 Features
Fast I2C-BUS controlled (max. 400 kHz) Cascadable (2 bus addresses) 7 CVBS inputs, 5 outputs, 3 inputs with clamp disable by bus 1 input selectable as Y-input (S-VHS) 1 additional C-input (S-VHS) Y+C operation for S-VHS, selected by bus Fully ESD protected -60 dB max. crosstalk at 5 MHz (P-DSO-28 only) Low operating voltage of 7.5 V 5V operation is possible with reduced output signals of max. 2 Vpp 15 MHz minimum bandwidth Noise insensitive clamping inputs low impedance off condition, separate for each output
s s s s s s s s s s s s s
2.3 Application
s s s
Television sets Satellite receivers Video mixing desks
Wireless Components
2-2
Specification, August 1999
TDA 6920
Product Description
2.4 Package Outlines
P-DSO-28
P-DIP-18
Wireless Components
2-3
Specification, August 1999
3
Functional Description
Contents of this Chapter 3.1 3.2 3.3 3.4 3.5 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Pin Definition and Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Block Diagram (P-DSO-28) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
TDA 6920
Functional Description
3.1 Pin Configuration
Gnd In1 Gnd In2 Gnd In3 Gnd In4 Gnd In5 Gnd In6 Gnd In7
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23
C Vcc Out1 Gnd Out2 Gnd Out3 Gnd Out4 Gnd Out5 Address SDA SCL
TDA 6920
22 21 20 19 18 17 16 15
Pin_config_1.wmf
Figure 3-1
Pin Configuration P-DSO-28
C In1 In2 In3 In4 In5 In6 In7 Gnd
1 2 3 4 5 6 7 8 9
18 17 16 15
Vcc Out1 Out2 Out3 Out4 Out5 Address SDA SCL
TDA 6920
14 13 12 11 10
Pin_config_2.wmf
Figure 3-2
Pin Configuration P-DIP-18
Wireless Components
3-2
Specification, August 1999
TDA 6920
Functional Description
3.2 Pin Definition and Function
Table 3-1 Pin Definition and Function Symbol P-DIP-18 GND IN1 GND IN2 GND IN3 GND IN4 GND IN5 V ref3 IN6 GND IN7 SCL SDA Address OUT5 GND OUT4 GND OUT3 GND OUT2 GND OUT1 VCC C 2 3 4 5 6 7 9 8 10 11 12 13 14 15 16 17 18 1 Pin P-DIP-28 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Signal + power supply ground CVBS input 1 Signal + power supply ground CVBS input 2 Signal + power supply ground CVBS input 3 Signal + power supply ground CVBS input 4 Signal + power supply ground CVBS input 5 Reference Voltage for external use CVBS input 6 Power supply ground CVBS input 7 I2C-Bus clock I2C-Bus data Address selection CVBS output 5 Signal + power supply ground CVBS output 4 Signal + power supply ground CVBS output 3 Signal + power supply ground CVBS output 2 Signal + power supply ground CVBS output 1 Positive power supply voltage Separate color adding input for input 1 Function
Wireless Components
3-3
Specification, August 1999
TDA 6920
Functional Description
3.3 Pin Description
C ( color input )
In 2,5,6,7 ( CVBS input )
In 2,3,4 ( CVBS input )
SCL , Address
Wireless Components
3-4
Specification, August 1999
TDA 6920
Functional Description
SDA
Out 1-5 (CVBS output)
Vref (S=-28 only)
Wireless Components
3-5
Specification, August 1999
TDA 6920
Functional Description
3.4 Functional Description
The main function of the IC is to switch 7 input video sources to 5 outputs. Each output can be switched to only one input. It is possible to have the same input connected to several outputs. 3 of the inputs can be used as non-clamping-input, switching is controlled by bus. The clamping function of the other 4 inputs can be switched off by external resistor divider. All switching possibilities are controlled by the I2C-BUS. All outputs can be switched to low impedance off condition by the I2C-BUS. Driving 75 load requires external transistors. The recommended coupling capacitor at each input is 47 nF. Each clamping input requires a 75 (max. 500 ) termination resistor. Operation without or with a termination resistor greater than 500 causes malfunction of the new high performance clamping circuit. Unused input`s should be directly grounded. 6 x 8 bits are necessary to determine one complete configuration change (1 addressbyte, 5 databytes). Minimum configuration change for 1 output needs 2 x 8 bit (1 addressbyte, 1 databyte). Power on reset state: all 5 outputs switched to input 1, all inputs clamped, Y+C off.
Wireless Components
3-6
Specification, August 1999
TDA 6920
Functional Description
3.5 Block Diagram (P-DSO-28)
Figure 3-3
Block Diagram (P-DSO-28)
Wireless Components
3-7
Specification, August 1999
4
Applications
Contents of this Chapter 4.1 4.1.1 4.1.2 4.1.3 Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Application Circuit P-DSO-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Application Circuit P-DSO-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Application Circuit P-DIP-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
TDA 6920
Applications
4.1 Circuits
4.1.1
Application Circuit P-DSO-28
Figure 4-1
Application Circuit P-DSO-28 (clamping inputs)
Wireless Components
4-2
Specification, August 1999
TDA 6920
Applications
4.1.2
Application Circuit P-DSO-28
Figure 4-2
Application Circuit P-DSO-28 (no clamping inputs with clamping overide)
Wireless Components
4-3
Specification, August 1999
TDA 6920
Applications
4.1.3
Application Circuit P-DIP-18
Figure 4-3
Applikation Circuit P-DIP-18
Wireless Components
4-4
Specification, August 1999
5
Reference
Contents of this Chapter 5.1 5.1.1 5.1.2 5.1.3 5.2 5.3 5.4 5.5 5.6 5.7 Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 AC/DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Address selection (fast I2C-Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Data selection ( fast I2C-BUS ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Data Mode Selections (fast I2C-Bus) continued. . . . . . . . . . . . . . . . . 5-6 BUS Protocol ( fast I2C-BUS ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Test Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Electrical Diagramms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
TDA 6920
Reference
5.1 Electrical Data
5.1.1
Absolute Maximum Ratings
WARNING
The maximum ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the IC will result.
Table 5-1 Absolute Maximum Ratings Parameter Symbol Limit Values min Supply voltage ( Vcc ) Reference voltage ( SO-28 only ) Reference current ( RLmin = 1k) Output voltage Output current ( RLmin = 500 ) Input voltage Input voltage SCL, SDA, address input voltage ESD-voltage all pins HBM ( R=1.5k , C=100pF ) Junction temperature Storage temperatue Thermal resistance ( system - air) V cc V ref3 I ref3 V out1-out5 I out1-out5 VC V In1-In7 VSDA, SCL, Address VESD Tj Tstg TthSA - 40 0 0 0 -6 0 0 0 max 14 5 3.5 Vcc 5 Vcc Vcc Vcc 6 150 125 75 V V mA V mA V V V kV Unit Remarks
C C
K/W
All voltage values are referenced to ground, if not stated otherwise.
Wireless Components
5-2
Specification, August 1999
TDA 6920
Reference
5.1.2
Operating Range
Within the operational range the IC operates as described in the circuit description. The AC / DC characteristic limits are not guaranteed.
Table 5-2 Operating Range Parameter Symbol Limit Values min Supply voltage Absolut minimum supply voltage (only usable with reduced output signals of max. 2Vpp) Reference voltage ( SO-28 only ) Video-input frequency range - 3 dB Video-input AC-voltage ( color ) Video-input AC-voltage ( Y, CVBS ) Video-output AC-voltage Input DC-voltage Input DC-voltage ( clamping ) Input DC-voltage ( non clamping ) Input Source-Impedance (clamping) I2C bus clock Ambient temperature during operation V cc V cc 7.5 4.5 max 13.2 V V Unit Test Conditions L Item
V ref3 fin In1-In7,C VC V In1-In7 V out1-out5 VC V In1-In7 V In2,3,4 Ri In1-In7 fin SDA, SCL TA
3.3 0
3.9 20 1.0 1.7 3.4
V MHz Vpp Vpp Vpp V V V kHz
1.3 1.8 1.5 0 0 -10
2.3 3.5 3.2 500 500 85
C
All voltage values are referenced to ground, if not stated otherwise.
5.1.3
AC/DC Characteristics
Table 5-3 AC/DC Characteristics with TA 25 C, VCC = 8.5 V Symbol Limit Values min Total current consumption Reference voltage (SO-28 only) Output DC-voltage (clamping) Output DC-voltage (output off) Output current Input DC-voltage I Vcc V ref3 Vout1-out5 Vout1-out5 I out1-out5 VC 0.5 3.4 typ 42 3.6 1.8 0.8 1.0 1.8 2.0 max 58 3.8 mA V V V mA V RL = RL = V C,In1-In7 = 0 Vpp V C,In1-In7 = 0 Vpp Vout =2V,In=0 Vpp V C = 0 Vpp Unit Test Conditions L Item
Wireless Components
5-3
Specification, August 1999
TDA 6920
Reference
Table 5-4 AC/DC Characteristics with TA 25 C, VCC = 8.5 V (continued) Symbol Limit Values min Input DC-voltage ( clamping ) Input current ( clamping ) Input DC-voltage ( for ext. clamping override ) Input DC-voltage (non-clamping, Bus controlled) Input current ( SCL, SDA, address) Output current ( SDA ) Output voltage low ( SDA ) SCL,SDA, address (96 hex) : high SCL,SDA, address (94 hex) : low SCL,SDA,address (hysteresis) Video bandwidth Video gain Crosstalk ( 0 - 5 MHz ) SO-28 Crosstalk ( 0 - 5 MHz ) SO-28 Crosstalk ( 0 - 5 MHz ) DIP-18 Crosstalk ( 0 - 5 MHz ) DIP-18 Input AC-voltage Input AC-voltage Input AC-voltage ( sinus ) Output AC-voltage I2C bus clock Output linearity Input resistance ( non-clamping ) Input Source-Impedance ( clamping ) Input Coupling-Capacitor ( clamping) Output dyn. impedance V In1-In7 I In1-In7 V In1-In7 V In2,3,4 ISDA, SCL IAddress I SDA V SDA V SDA VSDA, SCL VAddress VSDA, SCL VAddress VSDA, SCL VAddress Pout/in Vout/Vin A A A A VC V In1-In7 V In2,3,4 Vout1-out5 fin SDA, SCL DGout1-out5 R C,In2,3,4 R In1-In7 C In1-In7 Rout1-out5 40 0 6 0 0 3.0 0 0.2 15 1.9 20 2.0 -65 -55 -62 -45 0.75 1 1 2 400 0.2 50 75 47 10 50 75 500 2.1 -60 -50 -57 -40 1 1.5 1.5 3 500 1 dB dB dB dB Vpp Vpp Vpp Vpp kHz % k nF CVBS-signal >20Hz Audiosignal RL= inputs 75 to gnd inputs 500 to gnd inputs 75 to gnd inputs 500 to gnd sinus clamped non clamped 0.2 0.3 0.4 0.6 VCC 1.5 1 typ 1.8 0.33 2.4 2.4 0.1 0.4 1 max V V In1-In7 = 0 Vpp V In1-In7 = 0 Vpp V In1-In7 = 0 Vpp V In2,3,4 = 0 Vpp V SDA, SCL = 0 V VAddress = 0 V V SDA = 0.6 V I SDA = 3 mA sink I SDA = 6 mA sink Unit Test Conditions Item
A
V V
A
mA V V V V V MHz
dependant on input frequency -3dB point
F
Wireless Components
5-4
Specification, August 1999
TDA 6920
Reference
5.2 Address selection (fast I2C-Bus)
1st byte of transmission (8 bit)
Table 5-5 HEX MSB 96 94 1001 1001 binary LSB 0110 0100 VCC (min. 3V) GND address pin
5.3 Data selection ( fast I2C-BUS )
2nd byte of transmission (8 bit)
Table 5-6 Output selection (3bit, 7bit must always be 0) b7 b6* 0x 0x 0x 0x 0x 0x 0x 0x * .... X = don' t care b5 b4 b3 000 001 010 011 100 101 110 111 b2 b1 b0* xxx xxx xxx xxx xxx xxx xxx xxx selected output - not used out1 out2 out3 out4 out5 - not used - not used
Table 5-7 Input selection clamped (3 bit, bit7 must always be 0) b7 b6 0x 00 00 00 00 0x 0x 0x * .... X = don' t care b5 b4 b3* xxx xxx xxx xxx xxx xxx xxx xxx b2 b1 b0 000 001 010 011 100 101 110 111 selected output output off condition in1 in2 in3 in4 in5 in6 in7
Wireless Components
5-5
Specification, August 1999
TDA 6920
Reference
5.4 Data Mode Selections (fast I2C-Bus) continued
2nd byte of transmission ( 8 bit )
Table 5-8 Input selection non clamped / Y+C (Y:always clamped; C:non clamped) ; (3 bit, bit 7 should always be 0) b7 b6 00 00 00 00 01 01 01 b5 b4 b3* xxx xxx xxx xxx xxx xxx xxx b2 b1 b0 001 010 011 100 001 010 011 selected input in1, (Y+C) off in2, clamp on in3, clamp on in4, clamp on in1, (Y+C) on in2, clamp off in3, clamp off
01 xxx 100 in4, clamp off * .... X = don' t care (if only input operation mode change is requested, b5, b4, b3 should be 0, 0, 0 : no output configuration is changed.)
5.5 BUS Protocol ( fast I2C-BUS )
Programming Example : SDA sequence
start condition
serial data stream
address 96H MSB LSB ...........
1st data : output 4 connect to input 3 clamped mode output input
10
1001 0110
00
100
011
data : output 5 connect to input 1 (Y + C) ........... mode output input ...........
last data : output 1 connect to input 4 not clamped mode output input
stop condition
01
101
001
01
001
100
01
Wireless Components
5-6
Specification, August 1999
TDA 6920
Reference
5.6 Test Circuits
Figure 5-1
Test circuit P-DSO-28
Wireless Components
5-7
Specification, August 1999
TDA 6920
Reference
Figure 5-2
Test circuit P-DIP-18
Wireless Components
5-8
Specification, August 1999
TDA 6920
Reference
5.7 Electrical Diagramms
Typical frequency response and crosstalk (simulated) for P-DSO-28 package
DB(V) 10
0
-10
-20
-30
Re=500
-40
-50
Re=75
-60
-70
-80
Re=75 + groundpin
between input pin`s
20meg 50meg 100meg f ( H z
-90 100k ( ) f( )
200k (3)
500k 1 (4)
1meg 1 ()
2meg 1 (6) 1
5meg
10meg
Conditions: response: crosstalk :
VCC = 8.5V , all outputs selected to one different input; the measured output has max. signal on the selected input; the measured output has no signal on the selected input, another input has max. signal.
Wireless Components
5-9
Specification, August 1999


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