Samsung KS7214 Datasheet
KS7214 Timing & SYNC. Generator for B/W CCD
48 - QFP - 0707
GENERAL DESCRIPTION
KS7214 is Timing control IC for generating timing signal &
sync signal which required camera system using monochrome
CCD Image sensor.
FUNCTIONS
- EIA / CCIR STANDARDS TIMING MODE
- HI-BAND / NORMAL TIMING MODE
- FRAME / FIELD ACCUMULATION MODE
- INTERLACE / NON - INTERLACE MODE
- EXTERNAL SYNCHRONIZATION MODE
- ELECTRONIC IRIS ( ELECTRONIC SHUTTER )
- SYNC SIGNAL GENERATION
- OSCILLATION FREQUENCY :
EIA NORMAL MODE : 19.06992 MHz
CCIR NORMAL MODE : 18.93750 MHz
EIA HI-BAND MODE : 28.63636 MHz
CCIR HI-BAND MODE : 28.37500 MHz
BLOCK DIAGRAM
ORDERING INFORMATION
Device Package Operating Temperature
KS7214 48-QFP-0707 - 20°C ~ +75 °C
X1
X2
CLK1
VRN
HRN
MD2
MD3
SM0
SM1
SM2
EES
FL
EXT1
EXT2
EXT3
39
42
43
44
10
46
47
48
40
2
3
4MD4
6
7
8
9
V SYNC
SEPARATOR
H SYNC
SEPARATOR
CONTROL
SIGNAL
GENERATOR
1/2
1/606, 1/908, 1/910
VD
HD
ROM1
(AUTO EXPOSURE)
ROM2
(FIXED EXPOSURE)
HIGH SPEED
PULSE
GENERATOR
H1,H2 GATE PULSE
H COUNTER
(606,908,910
COUNTER)
V COUNTER
(1050, 1250
COUNTER)
PHASE
COMPARATOR
1/8H COUNTER
H PULSE
GENERATOR
V PULSE
GENERATOR
M I X
XSUB
GENERATOR
33
34
35
36
37
14
15
16
17
19
20
21
22
24
25
26
27
28
29
38
30
SHP
SHD
XPG
H 1
H 2
FLD
WND
CSYNC
CBLK
VD
HD
CLP1
CLP2
V 4
XSG2
V 3
XSG1
V 1
V 2
PC
XSUB
KS7214 Timing & SYNC. Generator for B/W CCD
TST2
TST1
PIN CONFIGURATION
H1
XPG
SHD
SHP
VDD2
VSS
XSUBV2V1
XSG1V3XSG2
H2
PC
X1
X2
VSS2
CLKI
VRN
HRN
RSTN
EXT1
EXT2
MD1
V4
VDD
CLP2
CLP1
HD
VD
KS 7214
VSS
CBLK
CSYNC
WND
FLD
TST0
VDD
MD2
MD3
MD4
VSS
SM0
SM1
SM2
EES
FL
KS7214 Timing & SYNC. Generator for B/W CCD
PIN DESCRIPTION
Pin No.
1 VDD - Power Supply
2 MD2 I Mode Switching; HI-Band: High, Normal: Low (with Pull-down)
3 MD3 I Mode Switching; Non - Interlace: High, Interlace: Low
4 MD4 I Mode Switching; Frame : High, Field: Low (with Pull-down)
5 VSS - Ground
6 SM0 I Shutter Speed Control (with Pull-down)
7 SM1 I Shutter Speed Control (with Pull-down)
8 SM2 I Shutter Speed Control (with Pull-down)
9 EES I Electronic Shutter Mode; Auto Mode: High, Fixed Mode: Low
10 FL I Flickerless Shutter Mode; Flickerless Mode: High
11 TST2 I Test Mode Select 2 (with Pull-down)
12 TST1 I Test Mode Select 1 (with Pull-down)
13 TST0 I Test Mode Select 0 (with Pull-down)
Pin
Name
I/O Pin Description
(with Pull-down)
(with Pull-down)
(with Pull-down)
14 FLD O Field Seperation Pulse
15 WND O Window Pulse
16 CSYNC O Composite Sync Pulse
17 CBLK O Composite Blank Pulse
18 VSS - Ground
19 VD O Vertical Drive Pulse
20 HD O Horizontal Drive Pulse
21 CLP1 O Clamp Pulse 1
22 CLP2 O Clamp Pulse 2
23 VDD - Power Supply
24 V4 O CCD Vertical Register Drive Pulse 4
KS7214 Timing & SYNC. Generator for B/W CCD
PIN DESCRIPTION (Continued)
Pin No.
25 XSG2 O CCD Sensor Read Out Pulse 2
26 V3 O CCD Vertical Register Drive Pulse 3
27 XSG1 O CCD Sensor Read Out Pulse 1
28 V1 O CCD Vertical Register Drive Pulse 1
29 V2 O CCD Vertical Register Drive Pulse 2
30 XSUB O CCD Discharge Pulse
31 VSS - Ground
32 VDD2 - Power Supply 2
33 SHP O Precharge Sample & Hold Pulse
34 SHD O Data Sample & Hold Pulse
35 XPG O CCD Reset Gate Pulse
36 H1 O CCD Horizontal Register Drive Pulse
37 H2 O CCD Horizontal Register Drive Pulse
38 PC O Phase Comparator Output
39 X1 I Oscillator Input
40 X2 O Oscillator Output
Pin
Name
I/O Pin Description
41 VSS2 - Ground 2
42 CLKI I Clock Input For EXT. Sync Mode
43 VRN I Vertical PLL Reference For External Sync Mode (Schmitt Pull-up)
44 HRN I Horizontal PLL Reference For External Sync Mode (Schmitt Pull-up)
45 RSTN I System Initialization Pulse (Schmitt Pull- up)
46 EXT1 I External Sync Mode Select (with Pull-down)
47 EXT2 I External Sync Mode Select (with Pull-down)
48 MD1 I Mode Switching; CCIR: High, EIA: Low (with Pull-down)
KS7214 Timing & SYNC. Generator for B/W CCD
LU
ST
ABSOLUTE MAXIMUM RATINGS (Ta = 25 °C)
PARAMETER SYMBOL CONDITION UNIT
SUPPLY VOLTAGE VDD VSS - 0.3 ~ + 7.0 V
INPUT VOLTAGE VI VSS - 0.3 ~ VDD + 0.3 V
OUTPUT VOLTAGE VO VSS - 0.3 ~ VDD + 0.3 V
OPERATING TEMP. T
STORAGE TEMP. T
LATCH-UP CURRENT I
opr
str
0 ~ + 70
- 40 ~ + 125
100 mA
°C
°C
DC CHARACTERISTICS (Ta = 25 °C)
Item Symbol Condition Min. Typ. Max. Unit
Supply voltage VDD - 4.75 5.00 5.25 V
Input voltage1 (Normal input) VIH 1 CMOS Level Interface 0.7VDD - - V
VIL 1 CMOS Level Interface - - 0.3VDD V
Input voltage2 (Pin 43, 44, 45) VIH2 CMOS Level schmmit trigger 0.8VDD - - V
VIL2 CMOS Level schmmit trigger - - 0.2VDD V
Input Current 1(With pull-down) IIH1 VI = VDD 50 - 200 uA
IIL1 VI = VSS -10 - 10 uA
Input Current 2 IIH2 VI = VDD -10 - 10 uA
(With pull-up: Pin 43, 44, 45) IIL2 VI = VSS -200 - -50 uA
Input Current 3 IIH3 VI = VDD -40 - 40 uA
(Normal Input: Pin 42) IIL3 VI = VSS -40 - 40 uA
Output voltage 1(Normal output) VOH1 IOH = -2mA 2.4 - - V
VOL1 IOL = 2mA - - 0.4 V
Output voltage 2 (Pin 33, 34, 35) VOH2 IOH = -4mA 2.4 - - V
VOL2 IOL = 4mA - - 0.4 V
Output voltage 3 (Pin 36, 37) VOH3 IOH = -16mA 2.4 - - V
VOL3 IOL = 16mA - - 0.4 V
Output voltage 4 (Pin 40) VOH4 IOH = -1mA 2.4 - - V
VOL4 IOL = 1mA - - 0.4 V
Operating current IDD VDD = 5.25V - 25 50 mA
Static current I
VDD = 5.25V - 420 - uA
KS7214 Timing & SYNC. Generator for B/W CCD
OPERATION EXPLANATION
INTERNAL RESET OPERATION
* Including power on reset. (Typ. 7us)
* Rstn low active reset at the internal mode
POWER
about 7us
Reset Period
POR
INIT
Reset Period
EXTERNAL SYNCHRONIZATION OPERATION
EXT 1 EXT 2 MODE
0 0 Internal Sync. Mode
1 1 External Composite Sync. Mode
1 0 Line Lock Sync. Mode
1 1 Separate Sync. Mode
HD PHASE SELECTION
TST 2 TST 1 TST0 MODE
0 0 0 NORMAL HD
1 1 1 REVERSED HD
ELSE REVERSED
KS7214 Timing & SYNC. Generator for B/W CCD
ELECTRONIC SHUTTER
There are two electronic shutter modes in KS7214.
One is a Fixed Iris mode that controls shutter speed through parallel interface with external pin.
The other is a Auto Iris mode that controls electronic Iris automatically by detecting the light amount of current objects from the signal
process IC.
FIXED SHUTTER MODE
MD1 FL SM2 SM1 SM0 SHUTTER SPEEDB
STEP REAL
L L L L L 1/60 1/60
L L L L H 1/250 1/251
L L L H L 1/500 1/513
L L L H H 1/1000 1/1006
L L H L L 1/2000 1/1936
L L H L H 1/5000 1/5034
L L H H L 1/10000 1/10489
L L H H H 1/30000 1/31469
L H X X X 1/100 * 1/101
H L L L L 1/50 1/50
H L L L H 1/250 1/249
H L L H L 1/500 1/510
H L L H H 1/1000 1/999
H L H L L 1/2000 1/1923
H L H L H 1/5000 1/5000
H L H H L 1/10000 1/10416
H L H H H 1/30000 1/31249
H H X X X 1/120 * 1/120
* FLICKERLESS MODE
KS7214 Timing & SYNC. Generator for B/W CCD
AUTO SHUTTER MODE
Processor KS7214
Y
Comparator
< Auto shutter application >
NO Step Period EIA CCIR
1 7H 8 1/60 ~ 1/76 8 1 / 50 ~ 1 / 75
2 5H 7 1/77 ~ 1/91 7 1 / 76 ~ 1 / 91
3 4H 9 1/92 ~ 1/116 9 1 / 92 ~ 1 / 115
4 3H 12 1/117 ~ 1/157 12 1 / 116 ~ 1 / 156
5 2H 18 1/158 ~ 1/247 18 1 / 157 ~ 1 / 245
6 1H 50 1/248 ~ 1/1154 50 1 / 246 ~ 1 / 1146
SM0
SM1
SM1 SM0 Auto Shutter Mode
0 0 Shutter Speed Hold
Up
0 1 Shutter Speed UP
1 0 Shutter Speed DOWN
Down
1 1 Shutter Speed Hold
Step Shutter Speed Step Shutter Speed
7 1 / 2H 18 1/1155 ~ 1/3402 18 1 / 1147 ~ 1 / 3378
8 1 / 4H 12 1/3403 ~ 1/9682 12 1 / 3379 ~ 1 / 9615
9 1 / 8H 11 1/9683 ~ 1/125875 11 1/9616 ~ 1/124999
< Auto shutter speed table >
KS7214 Timing & SYNC. Generator for B/W CCD
H D
CLK
H 1
H 2
P G
SHP
SHD
CLP1
CLP2
V 1
V 2
V 3
V 4
XSUB
* HORIZONTAL TIMING CHART FOR EIA NORMAL
KS7214 Timing & SYNC. Generator for B/W CCD
H D
CLK
H 1
H 2
P G
SHP
SHD
CLP1
CLP2
V 1
V 2
V 3
V 4
XSUB
* HORIZONTAL TIMING CHART FOR CCIR NORMAL
KS7214 Timing & SYNC. Generator for B/W CCD
H D
CLK
H 1
H 2
P G
SHP
SHD
CLP1
CLP2
V 1
V 2
V 3
V 4
XSUB
* HORIZONTAL TIMING CHART FOR EIA HI8
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