LV4147W Datasheet, PDF (6/26 Pages) Sanyo Semicon Device – Bi-CMOS LSI For LCD Panel Drive Single Chip IC

[Filter characteristics]
Parameter
TRAP attenuation amount
R-Y, B-Y LPF characteristics
LV4147W
Symbol
ATRAPN
ATRAPP
DEMLPF
Conditions
Input SIG1 (0dB, 3.58MHz and
NTSC
4.43MHz) in (A) and measure the TP43 _PAL
output with a spectrum analyzer.
Assuming that the TP43 amplitude in
the TRAP ON mode is 0dB, determine
the attenuation in the COMP input
mode.
Input SIG4 (VL = 150mV) in (A) and SIG1
(100kHz) in (B). In this case, assume that the
amplitude of 100kHz component of TP40, TP45
output is 0dB. Change the SIG1 frequency at
which the output amplitude of TP40, TP45
becomes -3dB.
[Sync separation, TG system]
Parameter
Input sync signal width
sensitivity
Symbol
WSSEP
Sync separation input
sensitivity
VSSEP
Sync separation output delay
rate
TDSYL
TDSYH
Horizontal pull-in range
HPLLN
HPLLP
Conditions
Enter SIG4 (VL = 0mV, VS = 143mV, WS variable)
to (A) and confirm synchronization with the TP24
HD output. Narrow WS of SIG5 from 4.7μs and
determine WS at which synchronization between
the input and TP24HD output is lost.
Enter SIG4 (VL = 0mV, WS = 4.7μs, VS variable)
to (A) and confirm synchronization with the TP24
HD output. Reduce VS of SIG4 from 143mV and
determine VS at which synchronization between
the input and TP24HD output is lost.
Enter SIG4 (VL = 0mV, WS = 4.7μs, and VS =
143mV) to (A) and measure the delay rate from
TP6RPD output. Assume that TDSYL is for a
period from fall of input HSYNC to fall of RPD
output and that TDSYH is for the period up to rise
of RPD output.
Enter SIG4 (VL = 0 mV, WS = 4.7μs,
and VS = 143mV, horizontal frequency
variable) to (A) and confirm
NTSC
PAL
synchronization with TP24 HD output.
Change the horizontal frequency of
SIG5 and determine the frequency fH at
which synchronization is established
from the condition in which input / output
synchronization is lost. Calculate as
follows : HPLLN = fH-15734
HPLLP = fH-15625
Ratings
min
typ
-15
-15
1.2
1.6
min
2.0
Ratings
typ
40
300
500
4.7
5.0
±500
±500
Unit
max
-20
dB
-20
dB
1.9 MHz
Unit
max
μs
60
mV
700
ns
5.3
μs
Hz
Hz
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