TMC57750 Datasheet, PDF (1/14 Pages) Texas Instruments – 1/4-INCH RS-170 TIMER

• EIA-170 Timing Operation
• Solid-State Reliability
• Fixed Electronic-Shutter Options
• Random Shutter-Mode
• Flicker-Compensation Mode
TMC57750
1/4-INCH RS-170 TIMER
SOCS041 – JUNE 1994
• Auto-Iris Capability
• Electronic-Windowing Options
• Horizontal and Vertical Resets for External
Synchronization
• Double-Speed Readout Option
SRGSEL
PHSEL1
PHSEL2
DSEL
SRM
SRG
GND
SAG
IAG2
IAG1
V_CC
ABM
ABG
ABGSEL
FSSEL
DSSEL
48 4746 45 44 43 42 4140 39 38 37 36 35 34 33
49
32
50
31
51
30
52
29
53
28
54
27
55
26
56
25
57
24
58
23
59
22
60
21
61
20
62
19
63
18
64
17
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
VACT
SHTCOM
HR
VR
SSEL3
SSEL2
V_CC
SSEL1
CPOB2
CPOB1
GND
CSYNC
CBLK
TEST4
EU
ED
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.
TI is a trademark of Texas Instruments Incorporated.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1994, Texas Instruments Incorporated
1