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参数资料
| 型号： | TA8795BF |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP60 |
| 封装： | 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-60 |
| 文件页数： | 18/45页 |
| 文件大小： | 1139K |
| 代理商： | TA8795BF |
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TA8795BF
2001-01-15 25/45
Chroma Block
TEST CONDITIONS : VCC = 5V, Ta = 25±3°C
SW No. AND VR MODE
No.
PARAMETER
SYMBOL
UNIT
MIN
TYP.
MAX
15
16
18
19
21
24
31
34
38
47
55
TEST METHOD
C1
ACC
characteristics
(3N)
B-YOUT1
A3N
Vp-p
0.60
0.70
0.80
1.00
1.30
Open
A
ON
Vary
A
B
Open Open Open ON
―
1. Define as eB-Y the B-Y output amplitude of pin 43
when the burst and chroma signals, which have the
same amplitude of 10mVp-p, are input to pin 21. Also
define the B-Y output amplitude of pin 43 when the
burst and chroma signals have the same amplitude of
100 and 300mVp-p (the 3N rainbow color-bar signal)
and are input to pin 21 as B-Y OUT1 and B-Y OUT2
respectively. Also, define the ratio between B-Y
OUT1 and B-Y OUT2 as A.
2. Using tint control, set the B-Y output amplitude to the
maximum.
A = B-Y OUT1 / B-Y OUT2
eP28
Vp-p
0.90
1.20
1.50
Open
A
ON
Vary
A
B
Open Open Open ON
―
C2
Delay line output
(PAL)
VP28
VN28
V
2.30
3.30
2.60
3.60
2.90
3.90
A
―
C
B
A / B
―
Open ON
―
1. Measure the pin 28 1H output amplitude when burst
and chroma signals with the same amplitude of
100mVp-p (PAL rainbow color bar signal) are input to
pin 21.
2. Measure the pin 28 DC voltage when there is no
input to pin 21 and Forced PAL or NTSC mode is set.
Define these voltages as VP28 and VN28
respectively (PAL / NTSC switching operation check).
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