參數(shù)資料
型號(hào)： TDA4885
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： 150 MHz video controller with I2C-bus
中文描述： SPECIALTY CONSUMER CIRCUIT, PDIP32
封裝： 0.400 INCH, PLASTIC, SOT-232-1, SDIP-32
文件頁(yè)數(shù)： 20/56頁(yè)
文件大?。?/td> 396K
代理商： TDA4885
1997 Nov 25
20
Philips Semiconductors
Product specification
150 MHz video controller with I
2
C-bus
TDA4885
28. The external reference voltages act under I
2
C-bus control independent from control bit FPOL; subaddress 07H
(REF
1
), 08H (REF
2
) and 09H (REF
3
; bit resolution 0.4% of voltage range).
29. Slow variations of video supply voltage V
CRT
will be suppressed at CRT cathode by the clamping feedback loop.
A change of V
CRT
with 5 V leads to a specified change of the cathode voltage.
Fig.3 Input signals.
The input video signals have to be on black level during input clamping.
handbook, full pagewidth
MHA344
input video signal
with syncs
at pins 6, 8 and 10
input clamping pulses
at pin 5
blanking/output
clamping pulses
at pin 11
input reference
black level
the syncs will be clipped
to reference black level
internally
input signals
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