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參數(shù)資料
| 型號(hào)： | TA1275BFNG |
| 廠商： | Toshiba Corporation |
| 英文描述： | Zener Diode; Application: Low noise; Pd (mW): 250; Vz (V): 2.8 to 3.2; Condition Iz at Vz (mA): 0.5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35 |
| 中文描述： | SECAM制式解調(diào)器處理器 |
| 文件頁(yè)數(shù)： | 17/21頁(yè) |
| 文件大小： | 1249K |
| 代理商： | TA1275BFNG |
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TA1275BFNG
2005-03-14
17
Note
Item
Test Condition
17
Ext. Color Difference Gain
(1) : Input a 200 mV
p-p
, 15 kHz sine wave into Pin 14 and Pin 16.
(2) : Supply 4 V to Pin 6.
(3) : Measure the respective output amplitudes at Pin 9 and Pin 11: V
EXTR
and V
EXTB
.
(4) : Calculate : "G
EXTR
" = V
EXTR
/ 200 mV
"G
EXTB
" = V
EXTB
/ 200 mV
18
Gate Pulse Width Variable
Range
(1) : Input a 75% color bar (200 mV
p-p
at R ID) into Pin 20.
(2) : Connecting Pin 13 to GND via 1 k
, observe the gate
pulse at Pin 13.
(3) : Measure the respective gate pulse widths for when Pin
4 is opened and for when it is connected to V
CC
/ GND:
"W
GP
", "W
GPVCC
" and "W
GPGND
".
19
Y DL Characteristics
(1) : Connect Pin 13 to V
CC
via 10 k
.
(2) : Connect Pin 8 to GND.
(3) : Measure the delay time between Pin 23 input and Pin 7 output, that is, "t
YDL
".
20
Y Trap Characteristics
(1) : Input a sweep signal with sync. (1 V
p-p
).
(2) : Connect Pin 13 to V
CC
via 10 k
.
(3) : Connect Pin 8 to V
CC
.
(4) : Observing the frequency response at Pin 7,
measure the frequency at which the attenuation is
maximum, that is, "f
0Y5.5
"; and measure the
attenuation at f
0Y5.5
against that at 1 MHz, that is,
"G
Y5.5
".
21
Y Input Dynamic Range
(1) : Connect Pin 13 to V
CC
via 10 k
.
(2) : Increasing the amplitude of the Y signal input into Pin 23, measure the amplitude
at which the output signal from Pin 7 begins to be distorted, that is, "DR
YS
".
(3) : Open Pin 13.
(4) : Repeat (2), that is, "DR
YBW
".
22
Y Gain
(1) : Input a Y signal (picture period amplitude: 0.7 V
p-p
) into Pin 23.
(2) : Connect Pin 13 to V
CC
via 10 k
.
(3) : Measure the gain between Pin 23 input and Pin 7 output, that is, "G
YS
".
(4) : Open Pin 13.
(5) : Repeat (3), that is, "G
YBW
".
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