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PDF LR38575 Data sheet ( Hoja de datos )
| Número de pieza | LR38575 | |
| Descripción | Timing Generator IC | |
| Fabricantes | Sharp Electrionic Components | |
| Logotipo |  |
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BACK
LR38575
LR38575www.DataSheet4U.com
DESCRIPTION
The LR38575 is a CMOS timing generator IC
which generates timing pulses for driving
1 310 k-pixel CCD area sensor and processing
pulses.
FEATURES
• Designed for 1/3.2-type 1 310 k-pixel CCD area
sensor
• Frequency of driving horizontal CCD : 12.272725
MHz
• In monitoring mode, it can be obtained 30 fields/s
• Two still mode types :
3 fields period and 4 fields period
• External shutter control function with serial data
input is possible
• +3.3 V and +4.5 V power supplies
• Package :
48-pin QFP (P-QFP048-0707) 0.5 mm pin-pitch
Timing Generator IC for
1 310 k-pixel CCD
PIN CONNECTIONS
48-PIN QFP
TOP VIEW
48 47 46 45 44 43 42 41 40 39 38 37
OFDC 1
V1X 2
VH1AX 3
VH1BX 4
V2X 5
VDD3 6
GND 7
V3X 8
VH3AX 9
VH3BX 10
V4X 11
OFDX 12
36 ID
35 ED2
34 ED1
33 ED0
32 HD
31 GND
30 VDD3
29 VD
28 DCLK
27 CLK
26 CKO
25 CKI
13 14 15 16 17 18 19 20 21 22 23 24
(P-QFP048-0707)
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in
catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
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1 page  
LR38575
wwwPIN.DNaOt.aSShYeMeBt4OUL.coIOmSYMBOL POLARITY
PIN NAME
DESCRIPTION
An output pin for DSP IC. The frequency is 12.272725 MHz.
28 DCLK O6MA3
Clock output
The output phase of DCLK is selected by serial data in
90˚ steps.
29 VD
IC3
Vertical reference
pulse input
An input pin for reference of vertical pulse.
Connect to VD pin of DSP IC.
30 VDD3
– – Power supply
Supply of +3.3 V power.
31 GND
– – Ground
A grounding pin.
32 HD
IC3
Horizontal drive
pulse input
An input pin for reference of horizontal pulse.
Connect to HD pin of DSP IC.
33 ED0
ICSU3
– Strobe pulse input
An input pin for the strobe pulse, to control the functions
of LR38575. For details, see "Serial Data Control".
34 ED1
ICSU3
Shift register clock
–
input
An input pin for the clock of the shift register, to control
the functions of LR38575. For details, see "Serial Data
Control".
35 ED2
Shift register data
ICSU3 –
input
An input pin for the data of the shift register, to control
the functions of LR38575. For details, see "Serial Data
Control".
Line index pulse
The pulse is used in color separator.
36 ID
O3
output
The signal switches between high and low at every line.
37 TST1
ICD4 – Test pin 1
A test pin. Set open or to L level in normal mode.
38 TST2
ICD4 – Test pin 2
A test pin. Set open or to L level in normal mode.
An input pin to select CCD. It should be used with
39 CCD
ICU4 – CCD selection input MODE input which is in the serial data.
Fix to H level or open.
40 VDD4
– – Power supply
Supply of +3.3 to +4.5 V power.
41 FH1
O6MA43
Horizontal transfer A horizontal transfer pulse for the CCD.
pulse output 1
Connect to ØH1 pin of the CCD.
42 GND
– – Ground
A grounding pin.
43 FH2
O6MA43
Horizontal transfer A horizontal transfer pulse for the CCD.
pulse output 2
Connect to ØH2 pin of the CCD.
44 VDD4
– – Power supply
Supply of +3.3 to +4.5 V power.
45 TST3
ICD4 – Test pin 3
A test pin. Set open or to L level in normal mode.
46 FR
O6MA43
A pulse to reset the charge of output circuit.
Reset pulse output
The output phase of FR is selected by serial data.
47 DRMD
ICU3
An input pin to select the period of still mode.
Drive mode selection
–
L level
: 3 fields period
input
H level or open : 4 fields period
48 SHTR
O3
Trigger output
A trigger pulse for effective signal period.
IC3
ICU3
ICSU3
ICU4
ICD4
: Input pin (CMOS level)
: Input pin (CMOS level with pull-up resistor)
: Input pin (CMOS schmitt-trigger level with pull-up resistor)
: Input pin (CMOS level with pull-up resistor)
: Input pin (CMOS level with pull-down resistor)
O3 : Output pin (output high level is VDD3.)
O6MA3 : Output pin (output high level is VDD3.)
O6MA43 : Output pin (output high level is VDD4.)
OSCI3 : Input pin for oscillation
OSCO3 : Output pin for oscillation
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LR38575.PDF ] | |
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