ta1270bfg TOSHIBA Semiconductor CORPORATION, ta1270bfg Datasheet - Page 25

• Manufacturer Part Number: ta1270bfg
• Description: Pal / Ntsc Video Chroma And Sync Processing System For Pip / Pop / Pap
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Chroma block
NOTE
C1
C2
C3
C4
ACC Characteristics
APC Frequency
Control Sensitivity
SECAM ID Output DC Level
NTSC Ident Sensitivity
CHARACTERISTIC
00
80
80
80
80
SUB ADDRESS & DATA
01
80
80
80
80
81
or
02
80
80
80
80
TEST CONDITION
03
80
81
83
84
81
83
84
80
or
or
or
or
05
80
80
81
80
80
or
25
SW1
B
B
B
A
SW MODE
―
―
―
―
―
―
―
―
―
―
(1) Input 3.58-NTSC signal 1 rainbow signal (Burst : chroma = 1 : 1) to the
(2) Measure the amplitude, F10, F30, F300, and F600, of the B-Y output (Pin
(3) Calculate A = F30 / F300.
(1) Connect the chroma input pin (Pin 6) to GND via a capacitor.
(2) Change the sub address (03) data to (81h), (83h), and (84h) and perform
(3) Connect external power source (V4) to the APC filter (Pin 4).
(4) Vary the voltage of external power source (V4) and measure the Fsc
(5) Measure the free-run sensitivity β for the (V4 + 100 mV) near fsc.
(1) Connect the chroma input pin (Pin 6) to GND via a capacitor.
(2) Change the sub address (03) data to (81h), (83h), and (84h) and
(1) Input 3.58-NTSC signal 1 rainbow signal (Burst : chroma = 1 : 1) to the
(2) While monitoring READ BUS “COLOR“, perform the following with BUS
(3) Increase the amplitude of the input signal from 0 mV
(4) Decrease the amplitude of the input signal from 100 mV
chroma input (Pin 6).
47) when the amplitude of the chroma input signal is set to 10, 30, 300,
and 600 mV
the following for each.
output (Pin 44) using a frequency counter.
(3.58NTSC ; β3, 4.43 ; PAL ; 4β ; M-PAL ; βM)
measure the output DC level of the SECAM ID (Pin 46).
chroma input (Pin 6).
“P / N-ID“ data = 1 and 0.
amplitude at mode change to 3.58 NTSC mode.(Normal (1) ; vNCL, High
(0) ; vNCH)
the amplitude at mode change to 3.58 NTSC mode.
(Normal (1) ; vNBL, High (0) ; vNBH)
3.58 NTSC mode (81h) ; SEN
4.43 PAL mode (83h)
SECAM mode (84h)
p-p
.
TEST METHOD
; SEP
; SES
p-p
TA1270BFG
and measure the
p-p
2005-08-18
and measure