CXA2153 Sony Corporation, CXA2153 Datasheet - Page 22

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CXA2153

Manufacturer Part Number
CXA2153
Description
Preamplifier for High Resolution Computer Display
Manufacturer
Sony Corporation
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
CXA2153S
Manufacturer:
SONY/索尼
Quantity:
20 000
VBLK Synchronous DAC Refresh System
The VBLK signal is extracted from the composite BLK signal which has been input to Pin 14, and the DAC data
for each control is rewritten all at once in synchronization with this VBLK signal. The received I
by a latch until the next VBLK signal arrives. Therefore, I
timing-free. Set the width of the V blanking pulse which is input to Pin 14 to 300µs or more.
Operation during power saving (Pin 22, V
Only the sync separator function operates. All the other functions are shut down.
Bus data transmission
DAC refresh
enable signal
DAC refresh
signal
VBLK
Transmission period
The latest data which was sent
before VBLK is written to the DAC.
In this case the data in (1) is written.
Data group (1)
disable
CC
enable
12 OFF)
– 22 –
The DAC is not rewritten while the
bus data in the VBLK period is being
transmitted. The transmitted data is held.
2
C bus data transmission from the microcomputer is
Data group (2)
Data group (3)
The data in (3) written.
The data in (2) written,
if (3) is not transmitted.
2
C bus data is held
CXA2153S

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