Sharp LZ9FD34 Datasheet
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1
LZ9FD34
DESCRIPTION
The LZ9FD34 is a CMOS single-chip driver IC which
generates timing pulses for driving 270 k/320 k/
410 k/470 k-pixel B/W CCD area sensors, synchronous pulses for TV signals and processing for
video signals.
FEATURES
• Designed for B/W CCD area sensors with 270 k/
320 k/410 k/470 k-pixel
• Switchable between EIA and CCIR modes
• Electronic shutter and EE control are possible
• Maximum shutter speed is 1/100 000 s
• Flicker-less function
• Non-interlace mode is possible
• External synchronization is possible
• Single +5 V power supply
• Field accumulation mode and frame accumulation mode are possible
• Package :
48-pin QFP (QFP048-P-0707) 0.5 mm pin-pitch
PIN CONNECTIONS
LZ9FD34
Single-chip Driver IC for 270 k/320 k/
410 k/470 k-pixel B/W CCDs
1
48 47 46 45 44 43 42 41 40 39 37
13 14 15 16 17 18 19 20 21 22 23 24
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
TST
1
TST2
VRI
TVMD
CSYN
V
DD
GND
CBLK
HD
VD
HBLK
TST
3
OFDX
VH
3X
VH1X
V4X
V3X
GND
V
DD
V2X
V1X
TST7
CCD
TST
6
BCP
TST
4
TST5
GND
ACLX
V
DD
FLMD
EEMD
EEUD
EENR
FCDS
FS
NINT
OSCO
OSCI
V
DD
FH1
GND
FH2VDDFRWIND
EEST
ITCH
38
48-PIN QFP
TOP VIEW
(QFP048-P-0707)
LZ9FD34
2
BLOCK DIAGRAM
OFDX
VH3XVH1X
V4X
V3X
GND
VDDV2X
V1X
TST7
CCD
TST
6
36 35 34 33 32 31 30 29 28 27 26 25
FS
FCDS
EENR
EEUD
EEMD
FLMD
V
DD
ACLX
GND
TST
5
TST4
BCP
TST1
TST2
VRI
TVMD
CSYN
V
DD
GND
CBLK
HD
VD
HBLK
TST
3
ITCH
EEST
WIND
FR
V
DD
FH2
GND
FH
1
VDD
OSCI
OSCO
NINT
MIX
MIX 1/2
1/2
1/4 H COUNTER 2
H COUNTER 1 V COUNTER
MODE SELECT
MODE SELECT
DECODER
DECODERRESET
OSC
SHUTTER
SPEED
CONTROL
SHUTTER
UP/DOWN
CONTROL
13
14
15
16
17
18
19
20
21
22
23
24
123456789101112
48
47
46
45
44
43
42
41
40
39
38
37
LZ9FD34
3
PIN DESCRIPTION
An input pin to control electronic exposure mode, flickerless mode and WIND (pin 39) pulse output.
WIND1 : Vertical pulse
WIND2 : Composite pulse (vertical and horizontal)
PIN NO.
SYMBOL I/O
POLARITY
PIN NAME DESCRIPTION
1 TST
1 ICD – Test pin 1 A test pin. Set open or to L level in the normal mode.
2 TST
2 ICD – Test pin 2 A test pin. Set open or to L level in the normal mode.
3 VRI ICSU – Vertical reset input
An input pin for resetting internal vertical counter.
The input pulse is VSYNC. (negative polarity)
4 TVMD ICU –
TV mode selection
input
An input pin to select TV standards.
L level : EIA mode
H level or open : CCIR mode
5 CSYN O
Composite
synchronizing pulse
output
An output pin of composite synchronous signal pulse.
6V
DD – – Power supply Supply of +5 V power.
7 GND – – Ground A grounding pin.
8 CBLK O
Composite blanking
pulse output
An output pin of composite blanking pulse.
9HD O
Horizontal drive
pulse output
The pulse occurs at the start of every line.
10 VD O
Vertical drive pulse
output
The pulse occurs at the start of every field.
11 HBLK O
Horizontal blanking
pulse output
A pulse that corresponds to the cease period of the
horizontal transfer pulse.
12 TST
3 ICD Test pin 3 A test pin. Set open or to L level in the normal mode.–
13 BCP O
Optical black clamp
pulse output
A pulse to clamp the optical black signal. This pulse
stays low during the absence of effective pixels within
the vertical blanking.
14 TST
4 ICD Test pin 4 A test pin. Set open or to L level in the normal mode.–
15 TST
5 ICD Test pin 5 A test pin. Set open or to L level in the normal mode.–
16 GND – Ground A grounding pin.–
17 ACLX ICU All clear input
An input pin for resetting all internal circuits at power on.
Connect V
DD through the diode and through the
capacitor.
–
18 V
DD – Power supply Supply of +5 V power.–
FLMD
Electronic Shutter mode WIND
L
EIA : 1/60 s, CCIR : 1/50 s
WIND1
H
EIA : 1/100 s, CCIR : 1/120 s
WIND1
L
Electronic exposure mode
WIND1
H
Electronic exposure mode
WIND2
1920FLMD ICU
Electronic exposure
and WIND pulse
control input 1
–
EEMD ICU
Electronic exposure
and WIND pulse
control input 2
–
EEMD
L
L
H
H
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