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Original Best Sellers LM1882CN Programmable Video Sync Generator DIP-20

Manufacturer Product Number
LM1882CN
Description

Programmable Video Sync Generator DIP-20

Package Condition
TUBE
Datasheet
LM1882CN
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Product Descriptions

The ’ACT715/LM1882 and ’ACT715-R/LM1882-R are 20-pin TTL-input compatible devices capable of generating Hori zontal, Vertical and Composite Sync and Blank signals for televisions and monitors. All pulse widths are completely de finable by the user. The devices are capable of generating signals for both interlaced and noninterlaced modes of op eration. Equalization and serration pulses can be introduced into the Composite Sync signal when needed.
Four additional signals can also be made available when Composite Sync or Blank are used. These signals can be used to generate horizontal or vertical gating pulses, cursor position or vertical Interrupt signal.
These devices make no assumptions concerning the system architecture. Line rate and field/frame rate are all a function of the values programmed into the data registers, the status register, and the input clock frequency.

The ’ACT715 / LM1882 is mask programmed to default to a Clock Disable state. Bit 10 of the Status Register, Register 0, defaults to a logic “0”. This facilitates (re)programming before operation.

The ’ACT715-R/LM1882-R is the same as the ’ACT715/ LM1882 in all respects except that the ’ACT715-R/ LM1882-R is mask programmed to default to a Clock En abled state. Bit 10 of the Status Register defaults to a logic “1”. Although completely (re)programmable, the ’ACT715-R/
LM1882-R version is better suited for applications using the default 14.31818 MHz RS-170 register values. This feature allows power-up directly into operation, following a single CLEAR pulse.

Product Features

n Maximum Input Clock Frequency > 130 MHz
n Interlaced and non-interlaced formats available
n Separate or composite horizontal and vertical Sync and Blank signals available
n Complete control of pulse width via register programming
n All inputs are TTL compatible
n 8mA drive on all outputs
n Default RS 170 / NTSC values mask programmed into registers
n 4 KV minimum ESD immunity
n ’ACT715-R/LM1882-R is mask programmed to default to a Clock Enable state for easier start-up into 14.31818 MHz RS 170 timing

Actual product photos

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Standard packaging

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Original Best Sellers LM1882CN Programmable Video Sync Generator DIP-20

Programmable Video Sync Generator DIP-20

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