
TMC57750
1/4-INCH RS-170 TIMER
SOCS041 – JUNE 1994
Copyright
1994, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
EIA-170 Timing Operation
Solid-State Reliability
Fixed Electronic-Shutter Options
Random Shutter-Mode
Flicker-Compensation Mode
Auto-Iris Capability
Electronic-Windowing Options
Horizontal and Vertical Resets for External
Synchronization
Double-Speed Readout Option
1 23 4 5 6
8
7
9 10 11 12 13 14 15 16
48 4746 45 44 43
41
42
40 39 38 37 36 35 34 33
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
ED
EU
TEST4
CBLK
CSYNC
GND
CPOB1
CPOB2
SSEL1
VCC
SSEL2
SSEL3
VR
HR
SHTCOM
VACT
DSSEL
FSSEL
ABGSEL
ABG
ABM
VCC
IAG1
IAG2
SAG
GND
SRG
SRM
DSEL
PHSEL2
PHSEL1
SRGSEL
TEST1
TEST2
TEST3
GND
MON1
MON2
MON3
MON4
EFSEL1
EFSEL2
EFSEL3
MINSEL
CC
WSEL1
WSEL2
WINDOW
V
FI
VD
HD
V
PUC
CLKN
XIN
XOUT
XSEL
MCLK/2
MCLK/4
GND
CDS
S/H
SHTMON
CC
SCAN
description
The TMC57750 is a monolithic integrated circuit designed to supply timing signals for the Texas
Instruments (TI
) 4-mm TC255 monochrome CCD image sensor. The TMC57750 supplies both CCD drive
signals and EIA-170 television-synchronization signals at standard video rates. It requires a single 5-V supply
voltage and a 25-MHz timing crystal or crystal oscillator. The TMC57750 provides the user with several options
including antiblooming-frequency selection, external synchronization, fixed electronic-shutter selection,
electronic auto-iris, and window selection.
The TMC57750 is designed to drive the TC255 CCD image sensor through an intermediary level-shifting device
such as the TI TMC57253 serial and parallel driver. It supplies sampling, clamping, and synchronizing signals
for the TI SN76121OFR video processor. The TMC57750 EIA-170 synchronization signals include composite
sync, composite blank, and field indicator.
The TMC57750 is supplied in a 64-pin plastic flat package and is characterized for operation from –20
°C
to 45
°C.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
TI is a trademark of Texas Instruments Incorporated.