TA1370FG Datasheet, PDF (10/42 Pages) Toshiba Semiconductor – SYNC Processor, Frequency Counter IC for TV Component Signals

Pin
No.
Pin Name
Function
24 SYNC2-IN
Input Y signal (Note 1) for sync
separation circuit.
24
Input via clamp capacitor.
Interface Circuit
11
1 kΩ
5
TA1370FG
Input Signal/Output Signal
White 100％ = 1 V_p−p
or
DAC1 output pin.
11
In Test mode, it outputs VD or
composite sync signal to
frequency counter.
25 DAC1 (V SYNC output)
To improve the driving ability, it
is possible to connect a
resister (minimum: 2 kΩ)
between this pin and GND.
200 Ω
25
However, when the resister is
added, the output DC voltage
is down.
18
DC
or
V SYNC
7V
0V
Note 1: The signal format for SYNC1-IN (pin 26) and SYNC2-IN (pin 24)
525P/60 Hz, 625P/50Hz, 750P/60 Hz, 1125I/60 Hz, 1125I/50 Hz, NTSC Double Scan (525I/120 Hz), PAL/SECAM Double Scan (625I/100 Hz)
This IC doesn’t have the sync-separation circuit for non-standard signals like weak strength signal, ghost signal and so on.
10
2003-02-19