PARALLEL DRIVERThe TMS3473B is a monolithic CMOS integrated
circuit designed to drive the parallel image-area
Gate (IAG), parallel storage-area Gate (SAG), and
antiblooming Gate (ABG) inputs of the Texas Instruments (TI) virtual-phase CCD Image Sensors The
TMS3473B Interfaces the CCD Image Sensor to a user-defined Timing generator; it receives TTL-input signals
from the Timing generator and outputs level-shifted and slew-rate-adjusted signals to the Image Sensor
The TMS3473B allows operation of the CCD Image Sensor in either the interlace or noninterlace mode. When
the TMS3473B I/N input is connected to VSS, the interlace mode is selected (see Figure 1); when I/N is
connected to VCC, the noninterlace mode is selected (see Figure 2).
ABOUT follows ABIN and switches between VABG+ and VABG. IAOUT and SAOUT follow IAIN and SAIN,
respectively, and Switch between VCC and VSS. Additionally, ABOUT and IAOUT CAN each be made to output
midlevel voltages. DC inputs to ABLVL and IALVL determine the midlevel voltages that CAN be output on ABOUT
and IAOUT, respectively. A high-logic level on MIDSEL causes ABOUT to output its midlevel voltage; a low-logic
level on MIDSEL causes IAOUT to output its midlevel voltage if the interlace mode is selected.
Slew-rate adjustment of IAOUT and ABOUT is accomplished by connecting IASR to VCC and ABSR to VABG+
through external resistors. The larger the resistor values, the longer the rise and fall times are.
A low-logic level on PD causes the TMS3473B to power down and all outputs to assume their low levels (IAOUT
and SAOUT to VSS, ABOUT to VABG).
The TMS3473B is supplied in a 20-pin surface-mount package (DW) and is characterized for operation from
20C to 45C. By Texas Instruments
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Part | Manufacturer | Description | Datasheet | Samples | |
---|---|---|---|---|---|
TMS3473BDW-X | Texas Instruments | TMS3473B Parallel Driver | |||
TMS3473BKL | Texas Instruments | TMS3473B Parallel Driver | |||
TMS3473BDW | Texas Instruments | Parallel Driver 20-SOIC |
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TMS3473B Pb-Free | TMS3473B Cross Reference | TMS3473B Schematic | TMS3473B Distributor |
TMS3473B Application Notes | TMS3473B RoHS | TMS3473B Circuits | TMS3473B footprint |