Preliminary
KA7307D
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.
20 - SOP - 300
CDS/AGC
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
ORERING INFORMATION
Device
KA7307D
Package
20-SOP-300
Operating Temperature
- 20°C ~ + 75
°C
BLOCK DIAGRAM
DGND1
DGND2
11
10
XSHD
DVCC
XSHP
PBLK
CLP4
CLP1
WND
20
19
18
17
16
15
14
13
12
IRISCAP
-
COMP1
CLP
GC1
IRIS
CONT
BLK
WND
+
-
COMP2
+
CLP1
AGCCAP
SH1
SH2
CLP
PBLK
SH3
AGC
LPF
AGC S/H
BLK
XRS
XSHP
XSHD
1
2
DATA IN
3
4
5
6
7
IRIS OUT
8
XRS
9
AGC CONT
AGC CAP
PG IN
IRIS CAP
IRIS CONT
AGC OUT
AGND
AVCC
VID-97-D002
February 1997
1
Preliminary
KA7307D
PIN DESCRIPTIONS
No.
1
2
3
4
5
CDS/AGC
Symbol
PG IN
DATA IN
AVCC
AGC CONT
IRIS CONT
I/O
I
I
I
I
I
Pin Voltage
Black Level
2.3V ~ 2.9V
( Typ.
: 2.6V )
Description
CCD Signal Input
Typ. : 5.0V
OV ~ 5V
GAIN CONTROL
Black Level
Supply Voltage
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
Analog Ground
Digital Ground 2
H : > 4V
L : < 1V
H : > 4V
L : < 1V
Sample - and - Hold Sig. Input
( Active Low )
High Speed Pulse
Input Pin for WINDOW ( Active Low )
Pre - Blanking Pulse
6
IRIS CAP
O
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 )
7
IRIS OUT
O
8
AGC CAP
O
9
AGC OUT
O
10
11
12
AGND
DGND2
XRS
O
O
I
-
-
13
WND
I
14
PBLK
I
Input Pin ( Active Low )
H : > 4V
L : < 1V
Clamping Pulse 1
Input Pin ( Active High )
Clamping Pulse 4
15
CLP1
I
16
17
18
19
20
CLP4
DVCC
XSHD
XSHP
DGND1
I
Input Pin ( Active High )
I
I
I
O
-
Typ. : 5.0V
H : > 4V
L : < 1V
Supply Voltage
High Speed Pulse Input
Pin for Sampling / Hold ( Active Low )
Digital Ground 1
VID-97-D002
February 1997
2
Preliminary
KA7307D
ABSOLUTE MAXIMUM RATINGS
( Vcc = 5.0 V , Ta = 25
°C
)
Characteristics
Supply Voltage
Input Voltage
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
Vcc
Vi
Pd
Topr
Tstg
Value
7
4.75 ~ 5.25
530
- 20 ~ + 75
- 65 ~ + 150
CDS/AGC
Unit
V
V
mW
°C
°C
ELECTRICAL CHARACTERISTICS
( Vcc = 5.0 V , Ta = 25
°C
)
Characteristics
Supply Current
CONT MIN
GC1
CONT MAX
Iris out maximum
voltage swing
CG1 Amp. CMRR
CONT MIN
AGC
CONT MAX
AGC Amp. CMRR
AGC out maximum
voltage swing
AGC1 MAX
CMRA
ADR
GC1C MAX
CDR
CMR1
AGC1 MIN
Symbol
ICC
GC1C MIN
Test Condition
ALL PIN : OPEN
Iris out / Data in
Iris CONT = 0.0V, WND >4.0V
Iris out / Data in
Iris CONT = Vcc, WND > 4.0V
Dta in = 400mVp - p
GC1 Gain max.
15.75KHz
AGC out / Data in
AGC CONT = 0.0V
AGC out / Data in
AGC CONT = Vcc
15.75KHz
Dta in = 100mVp p
AGC Gain max.
-
Min
23
-
Typ
41
-6
Max
59
-4
Unit
mA
dB
14
2.0
-
-
18
2.5
- 50
6
-
-
- 36
8
dB
V
dB
dB
38
-
2.0
41
- 50
2.5
-
- 36
-
dB
dB
V
VID-97-D002
February 1997
3
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