ta1370fg TOSHIBA Semiconductor CORPORATION, ta1370fg Datasheet - Page 32

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

HB01
HB02
Note
AFC phase detection current
VCO oscillation start voltage
Item
OPEN
S07
⎯
S23
⎯
SW Mode
b
S24
⎯
a
S26
⎯
b
(1) BUS control data preset.
(2) Horizontal oscillation frequency is 28.125 kHz (00).
(3) SW7 open. Measure the Voltage of pin 7 V7 (no external supply).
(4) Connect external supply with pin 7, and supply the voltage (V7).
(5) Input signal (below figure) to pin 26 (SYNC1-IN). When INPUT SW is SYNC1-IN , measure V1 and V2 of pin
(6) Supply V7 − 0.1 V and V7 + 0.1 V to pin 7, then measure V3 and V4.
(7) Calculate by following equations.
(1) Increasing the voltage of pin 11 V
7 wave form.
wave form.
ID1 [µA] = (V1 [V] ÷ 1 [kΩ]) × 1000
ID2 [µA] = (V2 [V] ÷ 1 [kΩ]) × 1000
ID3 [µA] = (V3 [V] ÷ 1 [kΩ]) × 1000
ID4 [µA] = (V4 [V] ÷ 1 [kΩ]) × 1000
Test Conditions and Measuring Method (V
32
Pin 26 wave form
Pin 7 wave form
CC
form 2.5V, measure the voltage V
CC
= 9 V, Ta = 25 ± 3°C, unless otherwise specified)
35.56 µs
VCO
when pin 9 appear oscillation
0.25 V
V1, V3
V2, V4
TA1370FG
2005-09-05