Samsung KA7307D Datasheet
Preliminary
AGC CONT
IRIS CONT
ORERING INFORMATION
KA7307D CDS/AGC
GENERAL DESCRIPTION
The KA7307 is a bipolar monolithic integrated
circuit for CCD Color Video Camera, and then
if provides functions of Correlated Double
Sampling, Automatic Gain Control, Window
Function, and Iris Amplifier Gain Control.
FEATURES
. Correlated Double Sampling (CDS)
. Automatic Gain Control (AGC)
. Low-pass-filter and Sample-and-Hold
circuit after AGC for external A/D
converters
. Window Function
. Iris Amplifer Gain Control
. + 5V Single power supply
. Low power < 330mW
20 - SOP - 300
Device Package Operating Temperature
KA7307D 20-SOP-300
- 20°C ~ + 75 °C
BLOCK DIAGRAM
DGND1
20 19 18 17
1 2 3 4 5 6 7 8 9 10
PG IN
XSHP
SH1
DATA IN
COMP2
XSHD
-
+
XSHDXSHP
AVCC
COMP1
SH2
SH3
DVCC
-
+
GC1
AGC
CLP4
16
IRIS
CONT
CLP1
15
IRISCAP
CLP
CLP1
14
AGCCAP
CLP
LPF AGC S/H BLK
IRIS CAP
PBLK
IRIS OUT
WND
13
WNDBLK
XRS
AGC CAP
XRS
12 11
PBLK
AGC OUT
DGND2
AGND
VID-97-D002
February 1997
1
Preliminary
KA7307D CDS/AGC
PIN DESCRIPTIONS
No. Symbol I/O Pin Voltage Description
1 PG IN I
2 DATA IN I ( Typ. : 2.6V )
3 AVCC I Typ. : 5.0V Supply Voltage
4 AGC CONT I
5 IRIS CONT I
6 IRIS CAP O
7 IRIS OUT O
8 AGC CAP O
9 AGC OUT O
10 AGND O - Analog Ground
11 DGND2 O - Digital Ground 2
12 XRS I
13 WND I
14 PBLK I
15 CLP1 I
16 CLP4 I
17 DVCC I Typ. : 5.0V Supply Voltage
18 XSHD I
19 XSHP I
20 DGND1 O - Digital Ground 1
Black Level
2.3V ~ 2.9V
OV ~ 5V
GAIN CONTROL
Black Level
2.05V ~ 2.55V
( Typ. : 2.27V )
Black Level
1.2V ~ 1.7V
( Typ. : 1.45V )
Black Level
2.15V ~ 2.65V
( Typ. : 2.37V )
Black Level
1.2V ~ 1.7V
( Typ. 1.45V )
H : > 4V
L : < 1V
H : > 4V
L : < 1V
H : > 4V
L : < 1V
H : > 4V High Speed Pulse Input
L : < 1V
CCD Signal Input
AGC Gain Control
IRIS Gain Control
A Pin is used to attach
IRIS Clamp Capacitor
IRIS Signal Output
Signal Max. : > 2.0Vp-p
A Pin is used to attach
IRIS Clamp Capacitor
AGC Signal Output
Signal Max. : > 2.0Vp-p
Sample - and - Hold Sig. Input
( Active Low )
High Speed Pulse
Input Pin for WINDOW ( Active Low )
Pre - Blanking Pulse
Input Pin ( Active Low )
Clamping Pulse 1
Input Pin ( Active High )
Clamping Pulse 4
Input Pin ( Active High )
Pin for Sampling / Hold ( Active Low )
VID-97-D002
February 1997
2
Preliminary
KA7307D CDS/AGC
ABSOLUTE MAXIMUM RATINGS ( Vcc = 5.0 V , Ta = 25
°C
)
Characteristics Symbol Value Unit
Supply Voltage
Input Voltage
Power Dissipation
Operating Temperature
Storage Temperature
ELECTRICAL CHARACTERISTICS ( Vcc = 5.0 V , Ta = 25
Vcc
Vi
Pd
Topr
Tstg
7
4.75 ~ 5.25
530
- 20 ~ + 75
- 65 ~ + 150
°C
mW
)
Characteristics Symbol Test Condition Min Typ Max Unit
Supply Current ICC ALL PIN : OPEN 23 41 59 mA
Iris out / Data in
GC1
CONT MIN GC1C MIN
Iris CONT = 0.0V, WND >4.0V
- - 6 - 4 dB
Iris out / Data in
CONT MAX GC1C MAX
14 18 - dB
Iris CONT = Vcc, WND > 4.0V
V
V
°C
°C
Iris out maximum
CDR
voltage swing
Dta in = 400mVp - p
2.0 2.5 - V
GC1 Gain max.
CG1 Amp. CMRR CMR1 15.75KHz - - 50 - 36 dB
AGC out / Data in
AGC
CONT MIN AGC1 MIN
AGC CONT = 0.0V
- 6 8 dB
AGC out / Data in
CONT MAX AGC1 MAX
38 41 - dB
AGC CONT = Vcc
AGC Amp. CMRR CMRA 15.75KHz - - 50 - 36 dB
AGC out maximum
ADR
voltage swing
Dta in = 100mVp - p
2.0 2.5 - V
AGC Gain max.
VID-97-D002
February 1997
3
Loading...