TA1370FG Datasheet, PDF (33/42 Pages) Toshiba Semiconductor – SYNC Processor, Frequency Counter IC for TV Component Signals

TA1370FG
Note
Item
HB03 HD output pulse width
(free-run)
SW Mode
S07 S23 S24 S26
Test Conditions and Measuring Method (V_CC = 9 V, Ta = 25 ± 3°C, unless otherwise specified)
c
b

 (1) BUS control data preset.
(2) When horizontal oscillation frequency is 28.125 kHz (00), measure the output pulse width TH00 of pin 16
(HD1-OUT) wave form.
(3) When horizontal oscillation frequency is 31.5 kHz (01), 33.75 kHz (10), 45 kHz (11), measure the output
pulse width TH01, TH02, TH03 as well.
Pin 16 (HD1OUT)
wave form
TH
HB04 Horizontal free-run frequency
OPEN b
HB05 Horizontal oscillation control sensitivity OPEN b

 (1) BUS control data preset.
(2) SW7 open. When horizontal oscillation frequency is 28.125 kHz (00), measure the oscillation frequency F00
of pin 16 (HD1-OUT) wave form.
(3) When horizontal oscillation frequency is 31.5 kHz (01), 33.75 kHz (10), 45 kHz (11), measure the oscillation
frequency F01, F10, F11 as well.
(4) When horizontal oscillation frequency is 31.5 kHz (01) and vertical free-run frequency is (001), measure the
oscillation frequency F50 of pin 16 wave form.

 (1) BUS control data preset.
(2) SW7 open.
(3) Connect external voltage with pin 7 . Horizontal oscillation frequency is 28.125 kHz (00). Supply V7 (about
6.3 V) + 0.05 V or V7 − 0.05 V to pin 7, then measure the frequency FA, FB of pin 16 (HD1-OUT) wave form.
Calculate frequency changing ratio (BH00). BH00 = (FB − FA)/0.1
(4) When horizontal oscillation frequency is 31.5 kHz (01), 33.75 kHz (10), 45 kHz (11), calculate BH01, BH10,
BH11 as wall.
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2003-02-19