CDB4954A/55A
22 pF
ENCODER
DRIVER
ENCODER
22 pF
TO 75
Ω
LOAD
1.8
µH
300
Ω
2.2
µH
75
Ω
300Ω
330pF 270pF
330 pF
270 pF
Figure 3. 300
Ω
Filters
Figure 4. 75
Ω
Filters
.
Connector
J1
J4
J11
J12
J30
J14
J16
J19
J35
J26
Input/Output
Input
Input
Output
Output
Output
Output
Output
Input
Input
Input/Output
Description
6 - 9V DC Power Supply
656 Parallel Video Input
R Video Output
G Video Output
B Video Output
Composite Video Output
S-Video Output
656 Serial Video Input (-)
656 Serial Video Input (+)
RS232 Interface
Table 1. System Connections
.
Header/Switch
J2
J5
J7
J6
J8
J9
J10
J18
J28
J32
J33
Purpose
Voltage Supply Select
Output Test Point for Serial
Receiver
Phase Sensor Output
FPGA Program/Debug
Header
Flash Write Enable
Testpoint from FPGA
External 1.2V Source for
CS4954
MPU Debug
Dig Video Input to CS4954
Processor Bus to CS4954
Jumper Position
3.3V
5V
-
-
-
Jumpered
Open
-
Jumpered
Open
-
-
-
Function Selected
3.3 V Operation
5 V Operation
Testpoints
Testpoints
Testpoints
Write Enabled
Write Not Enabled
Testpoints
1.2 V Ex Source
No 1.2 V Source
Testpoints
Testpoints
Testpoints
Table 2. CBD4954 Jumper/Switch Settings
7
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