CDB4955A Cirrus Logic Inc, CDB4955A Datasheet - Page 57

• Manufacturer Part Number: CDB4955A
• Description: EVALUATION BOARD FOR CS4955A
• Manufacturer: Cirrus Logic Inc

Specifications of CDB4955A

• Main Purpose: Video, Video Processing
• Embedded: Yes, Other
• Utilized Ic / Part: CS4955
• Primary Attributes: NTSC/PAL Digital Video Encoder
• Secondary Attributes: Graphical User Interface, RS-232 Interface
• Operating Frequency: 27 MHz
• Interface Type: RS-232, Composite, RGB, S-Video
• Operating Supply Voltage: 3.3 V, 5 V
• Software: Software Included
• Silicon Manufacturer: Cirrus Logic
• Silicon Core Number: CS4955
• Kit Application Type: Audio / Video / TV
• Application Sub Type: Encoder / Decoder
• Kit Contents: Evaluation Board
• Rohs Compliant: No
• For Use With/related Products: CS4954
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

NOTE: 1. The FIELD pin (pin 9) remains an output pin in SLAVE mode. However, the FIELD pin state does not
DS278F6
V [7:0]
CLK
PADDR
XTAL_IN
XTAL_OUT
HSYNC/CB
VSYNC
FIELD/CB
RD
WR
PDAT [7:0]
SDA
SCL
CVBS
Y
C
R
G
B
VREF
ISET
TTXDAT
TTXRQ
INT
RESET
TEST
VAA
GNDD
VDD
GNDA
Pin Name
(1)
toggle in SLAVE mode and its output state should be considered random.
19, 20, 21, 22, 23, 24, 25, 26
8, 7, 6, 5, 4, 3, 2, 1
Pin Number
36, 41, 46
35, 42, 45
29
16
15
14
10
27
28
32
33
44
48
47
39
40
43
38
37
30
31
12
34
13
18
17
11
9
Table 10. Device Pin Description
CURRENT Composite video output
CURRENT Luminance analog output
CURRENT Chrominance analog output
CURRENT Red analog output
CURRENT Green analog output
CURRENT Blue analog output
CURRENT DAC current set
OUT
Type
OUT
OUT
OUT
I/O
I/O
I/O
I/O
I/O
PS
PS
PS
PS
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
(1)
Digital video data inputs
27 MHz input clock
Address enable line
subcarrier crystal input
subcarrier crystal output
Active low horizontal sync, or composite blank signal
Active low vertical sync.
Video field ID. Selectable polarity or composite blank
Host parallel port read strobe, active low
Host parallel port write strobe, active low
Host parallel port/ general purpose I/O
I²C data
I²C clock input
Internal voltage reference output or external reference
input
Teletext data input
Teletext request output
Interrupt output, active high
Active low master RESET
TEST pin. Ground for normal operation
Ground
+5 V or 3.3 V supply (must be same as VAA)
Ground
+ 5 V or + 3.3 V supply (must be same as VDD)
s
Description
CS4954 CS4955
57