參數資料
型號: TB1245N
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDIP56
封裝: PLASTIC, SDIP-56
文件頁數: 55/101頁
文件大?。?/td> 1490K
代理商: TB1245N
TB1245N
2001-07-26
57
DEF SECTION
TEST CONDITION
(Note) "×" in the data column represents preset value at power ON.
NOTE
ITEM
SUB-ADDRESS & BUS DATA
MEASURING METHOD
DH1
H. Reference
Frequency
Sub 02H
0
1
(1) Supply 5 V to pin 26.
(2) Set bus data as indicated on the left.
(3) Measure the frequency of sync. output of pin 49.
DH2
H. Reference
Oscillation Start
Voltage
Sub 02H
0
1
In the test condition of the Note DH1, turning down the voltage supplied to pin 26 from 5 V, measure the voltage
when oscillation of pin 49 stops.
DH3 H. Output
Frequency 1
Sub 10H
×
0
×
0
1
(1) Set bus data as indicated on the left.
(2) In the condition of the above step 1, measure frequency (TH1) at pin 4.
DH4
H. Output
Frequency 2
Sub 10H
×
0
×
1
0
(1) Set the input video signal of pin 51 to the 60 system.
(2) Set bus data as indicated on the left.
(3) In the above-mentioned condition, measure frequency (TH2) at pin 4.
DH5 H. Output Duty 1
(1) Supply 4.5 V DC to pin 5 (or, make pin 5 open-circuited).
(2) Measure duty of pin 4 output.
DH6 H. Output Duty 2
(1) Make a short circuit between pin 5 and ground.
(2) Measure duty of pin 4 output.
DH7 H. Output Duty
Switching Voltage
― Supply 2 V DC to pin 5. While turning down the voltage from 2 V, measure voltage when the output duty ratio
becomes 41 to 37%.
DH8 H. Output Voltage
Measure the low voltage and high voltage of pin 4 output whose waveform is shown below.
DH9 H. Output Oscillation
Start Voltage
― While raising H. VCC (pin 3) from 0 V, measure voltage when pin 4 starts oscillation.
Unless otherwise specified : H, RGB VCC=9V ; VDD, Fsc VDD, Y / C VCC=5V ; Ta=25±3°C ; BUS=preset value ;
pin 48 input video signal=50 system
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