ta1370fg TOSHIBA Semiconductor CORPORATION, ta1370fg Datasheet - Page 27

• Manufacturer Part Number: ta1370fg
• Description: Sync Processor, Frequency Counter Ic For Tv Component Signals
• Manufacturer: TOSHIBA Semiconductor CORPORATION

HA04
HA05
Note
Sync1 input threshold amplitude
Sync2 input threshold amplitude
HD3 input threshold amplitude
(synchronization block)
Item
S07
c
c
S23
SW Mode
b
b
S24
⎯
a
↓
b
S26
⎯
b
↓
a
(1) Set sub-address (00) 0B and (02) 00.
(2) Input Signal a (33.75 kHz) to pin 26 (SYNC1-IN)
(3) Measure the sync. tip DC voltage of signal a on pin 26 (SYNC1-IN). (V
(4) Supply external voltage via 100 kΩ to pin 26 and increase the voltage.
(5) Measure the sync. tip DC voltage (V
(6) Set sub-address (00) B1, B2 and B3 and calculate V
(7) Calculate V
(1) Set sub-address (03) 47 and (02) 02.
(2) Input Signal b (31.5 kHz) to pin 14 (HD3-IN).
(3) Increasing the voltage of Signal b from 0 V, measure the voltage of Signal b V
V
thS10
Test Conditions and Measuring Method (V
27
= V
sync12
thS20
Signal a
, V
− V
thS21
sync11
Signal b
, V
thS22
and V
sync12
thS23
) when HD-OUT desynchronizes with signal a calculate V
against pin 24 (SYNC2-IN) in the same way as 4 to 6.
CC
0.593 µs
0.285 V
29.63 µs
= 9 V, Ta = 25 ± 3°C, unless otherwise specified)
thS11
2.35 µs
V
31.75 µs
, V
thHD1
thS12
and V
sync11
thS13
)
as well.
thHD3
when HD1-OUT lock.
TA1370FG
2005-09-05
thS10
.