TB1328FG Datasheet, PDF (41/47 Pages) Toshiba Semiconductor – Audio SW, Video SW, Sync Separation and H/V Frequency Counter IC for TVs

TB1328FG
Other Blocks
Characteristic
Symbol
Test Conditions
Min
Typ.
Max
Unit
XTAL oscillation amplitude
Vosc NOTE A, NOTE E
−
0.4
−
Vp-p
No signal detection filter
tnsfil1 SIG LPF = 1, NOTE F, NOTE A
0.5
1.5
2.0
µs
Imnsfil200 SIG DET IMPE = 00, NOTE G
14
20
26
Impedance for no signal detection filter
Imnsfil201 SIG DET IMPE = 01, NOTE G
Imnsfil210 SIG DET IMPE = 10, NOTE G
11
15
19
kΩ
7
10
13
Imnsfil211 SIG DET IMPE = 11, NOTE G
4.2
6.0
7.8
Vthns00 SIG DET LVL = 00, NOTE H
0.45 0.55 0.65
No signal detection threshold voltage
Vthns01 SIG DET LVL = 01, NOTE H
Vthns10 SIG DET LVL = 10, NOTE H
0.70 0.80 0.90
V
0.90 1.05 1.15
Vthns11 SIG DET LVL = 11, NOTE H
1.15 1.30 1.40
L⇔M VdcthLM
0.8
1.0
1.2
DC detection threshold (DC)
Pins 1,14,27,29,31,34,49,51,53,55
V
M⇔H VdcthMH
2.8
3.0
3.2
DC detection threshold (S)
VdcthS Pins 38,44,48,50,56,62
0.8
1.0
1.2
V
Input impedance of DC detection pins
Imdc Pins 1,14,27,29,31,34,49,51,53,55 100
150
-
kΩ
NOTE E: The amplitude of oscillation wave at the point between the crystal and the series capacitor.
NOTE F: Remove the external capacitor connected to SYNC FILTER pin (pin 10), HV SEP1 = 00, SIG DET SW = 1(SYNC-1IN),
SIG DET IMPE=11. The delay time from SYNC1-IN input (525/60i) to SYNC FILTER wave form.
NOTE G: Remove the external capacitor connected to SYNC FILTER pin (pin 10). Connect 10 kΩ resistor between SYNC FILTER
pin and GND. No input into SYNC1-IN. Measure the current (Ir) on the resistor. Imnsfil2xx = 3.3 / Ir - 10kΩ.
NOTE H: Remove the external capacitor connected to SYNC FILTER pin (pin 10). Input a 0V - Vthnsxx [V] pulse of 15.7 kHz into
SYNC FILTER pin. The pulse voltage when SIG DET status changes.
41
2006-11-13