Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright
Cirrus Logic, Inc. 1998
(All Rights Reserved)
Cirrus Logic, Inc.
Crystal Semiconductor Products Division
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
CRD7666-7C
Analog/Digital Evaluation CCD Cameras
Features
l
CCD Camera Processor Board
l
Includes CS7615 Analog Processor
l
Includes CS7666 Digital Processor
l
Includes CS4954 TV Encoder
l
4:2:2 Component Digital Video
l
ITU-R BT.656 Compliant Transport
l
NTSC/PAL Composite Video Output
l
S-Video Output
l
I
2
C Control Interface
l
Programmable Image Adjustment
l
12 mm and C-Mount Lens Options
Description
The CRD7666-7C is a CCD camera that provides a sim-
ple to use evaluation and demonstration platform using
the CS7615 which performs CDS and analog-to-digital
conversion of the CCD signal and the CS7666 which
converts the digitized CCD output data into the interna-
tional standard 4:2:2 digital video conforming to H.656
transport protocol. Also included is a CS4954 video en-
coder that converts 4:2:2 digital video to analog
NTSC/PAL video and S-Video.
The board set produces simultaneous digital AND ana-
log video outputs. Analog output requires a standard
video monitor. Control software is included to adjust
camera settings and operational features.
In order to view the digital video, a cable and a PCI card
are provided as well as viewing software on CD-ROM.
The camera consists of two boards (1) CCD+Video pro-
cessing board and (2) video encoder board.
All cameras include external power module, parallel port
I
2
C controller and control software to adjust camera set-
tings and operational features. Digital output is provided
via a 26-pin connector and the NTSC/PAL output is via
standard RCA and S-Video connectors.
ORDERING INFORMATION
CRD7666-7C
I
AUG `98
DS301RD1A1
CRD7666-7C
2
DS301RD1A1
OPERATION
The CCD+Video processing board includes the
CS7615 Analog Video Signal Processor which per-
forms analog processing and converts the analog
CCD output to a digital format. Also included on
the processor board is the CS7666 Digital Video
Color-Space Processor, which decodes the MYCG
(magenta, yellow, cyan, and green) CCD imager
data and converts it to the industry standard 4:2:2
component digital video in YCrCb format. The
component digital video can be used directly or af-
ter processing by the video encoder, the composite
output formats can be used. The camera uses a
+5 V supply in the form of a wall plug-in unit.
Power Requirements
The camera requires a reasonably filtered (less than
200 mV ripple) +5 V power supply feed, which is
used by the processor board and the encoder board.
A charge pump is used to generate both +15 V and
8 V required by the CCD imager.
Analog Processor
The CCD output is connected to the CS7615 analog
processor chip (see Figure 4). The CS7615 per-
forms all necessary analog processing, including
Correlated-Double-Sampler (CDS), Automatic-
Gain-Control (AGC), Black level adjust, and ap-
propriate output data formatting to allow the mosa-
ic (MYCG) CCD imager data to be processed by
the CS7666 digital processor. The CS7615 control
registers are accessible via the I
2
C control bus.
Digital Processor
The CS7666 digital processor is included on the
CCD+Video processor (see Figure 6). The CS7666
converts the digital mosaic data from the CS7615,
into 4:2:2 component digital video that adheres to
the ITU H.656 transport protocol. The Automatic-
White-Balance and other control registers are acces-
sible via the main I
2
C interface.
I
2
C Control and Settings
The camera incorporates an I
2
C EEPROM, which
provides all necessary register settings for the cam-
era on power-up. This EEPROM can be pro-
grammed using either the digital video connector
HDR1 (Figure 7), HDR4 (Figure 6) or the I
2
C exter-
nal connector HDR2 (Figure 1). Only one of these
approaches should be used at a time. The camera
must be re-powered, or the CS7666 must be reset,
for these new EEPROM settings to take effect. Ad-
ditionally, all registers are accessible using the I
2
C
control channel, and the Crystal software is compat-
ible with both connection schemes.
Multiple Configurations
Switch S1 is used to select between several prepro-
grammed configurations. The CRD7666-7C is
preconfigured for 720x480 NTSC (S1 = 100x). the
Pal version, CRD7666-7CP, is preconfigured for
720x576 (S1 = 010x). When shipped as part of the
CRD7615-8P PCI kit, S1 = 000x and the camera
provides 640x480 digital video only.
Digital Output Options
The camera has a 15-pin PCMCIA style connector
which connects via a cable to a PCI card (Figure 7)
and provides a simple means of integrating the
camera's digital output into a PC.
Figure 1. External I
2
C Connector.
1
0
D0
D1
D2
X
1
2
3
4
Figure 2. S1
CRD7666-7C
DS301RD1A1
3
Composite Output Options
The CRD7615-7A and -7C provide two analog output
mode connectors for composite and S-Video. The
Composite output is available in connector J1, while
the S-Video is available in connector P1 (Figure 9).
Schematics and Gerber Files
The CRD7666-7C schematics and PCB layout files
are available upon request in Zuken-Radac file format.
The PCB Gerber files are also available upon request.
SPECIAL NOTES
1) The camera power supply can be configured to
receive power from an external power module
or from the digital video connector.
CCD+VIDEO PROCESSOR BOARD
The CCD imager and Video processor board of the
camera includes a Panasonic MN3711OFP CCD
imager and a Panasonic MN3113F vertical driver
(with integrated charge pump). (Figure 5). Addi-
tionally, the CS7615 Analog Processor (Figure 4)
is also inlcuded. The CS7666 Digital Video Proces-
sor carries out all color space processing as well as
standard image processing (see CS7666 data sheet
for further details). A connector (Figure 3) between
the video processor board and the associated en-
coder board carries all necessary signals. The sup-
ported camera mounts are available from Marshall
and can be used for both simple 12mm0.5 lenses
as well as standard C-Mount lenses.
VIDEO ENCODER BOARD
The main digital output connector (Figure 7) pro-
vides industry standard H.656 compliant compo-
nent digital video output from the CCD board to the
vdeo encoder board. The video encoder (Figure 9)
provides both composite and S-Video output via
connectors J1 and P1. The board-to-board connec-
tor (Figure 6) routes all necessary signals to the up-
per half of the camera.
CRD7666-7C
4
DS301RD1A1
Figure 3. Analog Board to Digital Board Connector.
GND
+5V
R9
33
33
R8
R6
33
SDA
SCL
HREFOB
VREFOB
DOUT12
DOUT13
DOUT14
DOUT15
DOUT16
DOUT17
DOUT18
DOUT19
CLKOUT
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CON_HDR13X2
HDR1
+5V
DIN0
HCLK
DIN5
DIN4
DIN3
DIN2
DIN1
CCDOUTPUT
FR
CLKG
SCL
H1
H2
DIN6
V4X
VH3X
V3X
VH1X
V1X
V2X
OFDX
DIN7
DIN8
DIN9
CLKIN
SDA
Do not share current path.
close as possible to
Place these Caps as
to power pins on Device,
and route directly to pins.
R43
0
GND
+5V
+5V
X7R
.1UF
C25
X7R
C26
.1UF
GND
GND
R44
0
GND
0
R45
GND
X7R
.1UF
C27
R46
0
+5V
X7R
C28
.1UF
.1UF
X7R
C29
0
R47
33
R28
33
R29
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
U2
CS7615
GND
GND
R25
470K
+5V
GND
FERRITE_BEAD
L1
+5V
Figure 4.
CS7615 Analog Processor Schematic
.
CRD7666-7C
DS301RD1A1
5
+15VA
OFD
CCDOUTPUT
VH3X
VH1X
OFDX
V3X
V1X
OFD
HCLK
FR
H2
H1
OV4
OV3
OV2
OV1
-8VA
-8VA
OV1
OV3
OV2
OV4
V2X
V4X
+15VA
+15VA
+15VA
H2
H1
+15VA
OV4
OV3
OV2
OV1
-8VA
+15VA
GND
T1
OFD
PW
V1
V2
V3
V4
GND
H1
H2
NC2
NC1
OS
RD
RS
OD
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
U1
LZ2313H5
R65
0
R66
0
R67
0
0
R68
GND
GND
C8
10UF
GND
GND
R69
0
0
R70
R71
0
0
R72
R2
3.9K
3
1
2
Q2
MMBT2222AL
R60
100
C3+
C1+
GND
VIN-
VOUT-
SENSE2
CH2
IV3
IV1
CH1
ISUB
VEE
VHH
OSUB
VL2
VL1
OV1
VM13
OV3
OV2
VM24
OV4
VH
VDD
VCC2
IV2
IV4
SENSE1
VOUT+
VIN+
CAP3
CAP2
CAP1
HD
OVDD
C6+
VCC1
C6-
OVEE
C5-
C4-
C3-
C2-
C1-
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
U3
MN3113F
C21
4.7UF
C9
10UF
10UF
C10
10UF
C11
C12
10UF
C13
10UF
3
1
MMBD914LT1
D2
1
3
MMBD914LT1
D3
1
3
MMBD914LT1
D4
GND
4.7UF
C22
R26
560
GND
10UF
C54
X7R
C30
.1UF
GND
X7R
C31
.1UF
10UF
C14
C15
10UF
GND
R76
4.7K
BAT54C
D7
GND
BAT54C
D8
X7R
C32
.1UF
GND
PW
V4
V3
V2
V1
PT
SUB
H1
H2
LG
VO
RD
RP
OD
14
13
12
11
10
9
8
7
6
5
4
3
2
1
U8
MN37110FP
X7R
C33
.1UF
3
1
D5
MMBD914LT1
X7R
.01UF
C6
X7R
.1UF
C34
X7R
.01UF
C7
X7R
.1UF
C35
GND
1M
R4
GND
X7R
.1UF
C36
+5V
GND
COG
C47
1000PF
C46
1UF
1
3
D6
MMBD914LT1
3
1
2
Q1
MMBT3904LT1
CW
3
2
1
R30
10K
R15
2.2K
R3
3.9K
GND
1M
R5
X7R
.1UF
C37
R12
47K
GND
0
R73
R74
0
0
R75
GND
+5V
GND
GND
X7R
C38
.1UF
C45
33UF
GND
Figure 5. CCD Imager, Vertical Driver, and Charge Pump Circuit.
*
*
* only one CCD is installed
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