參數(shù)資料
型號(hào)： TB1245N
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDIP56
封裝： PLASTIC, SDIP-56
文件頁(yè)數(shù)： 35/101頁(yè)
文件大小： 1490K
代理商： TB1245N
TB1245N
2001-07-26
39
TEST CONDITION
VIDEO SECTION
TEST CONDITION (Unless otherwise specified : H, RGB VCC = 9V ; VDD, Fsc VDD, Y / C VCC = 5V ; Ta = 25±3°C)
SW MODE
SUB-ADDRESS & BUS DATA
NOTE
ITEM
S39
S42
S44
S45
S51
04H 08H 0FH 10H 13H 14H
MEASURING METHOD
Y1
Y Input Pedestal
Clamping Voltage
A
C
B
A
20H 04H 80H 00H 3AH 03H
(1) Short circuit pin 45 (Y1 IN) in AC coupling.
(2) Input synchronizing signal to pin 48 (SYNC IN).
(3) Measure DC voltage at pin 45, and express the measurement result as VYcIp.
Y2
Chroma Trap
Frequency
↑
A
B
↑
(1) Set the 358 TRAP mode to AUTO by setting the bus data.
(2) Set the bus data so that chroma trap is ON and f0 is 0.
(3) Input TG7 sine wave signal whose frequency is 3.58 MHz (NTSC) and video
amplitude is 0.5 V to pin 45 (Y1 IN).
(4) While observing waveform at pin 37 (Y1out), find a frequency with minimum
amplitude of the waveform. The obtained frequency shall be expressed as fIr3.
(5) Change the frequency of the signal 1 to 4.43 MHz (PAL) and perform the same
measurement as the preceding step4. The obtained frequency shall be expressed
as fIr4.
Y3
Chroma Trap
Attenuation
(3.58 MHz)
↑
Vari-
able
↑
Vari-
able
↑
(1) Set the bus data so that Q of chroma trap is 1.5.
(2) Set the bus data so that f0 of chroma trap is 0.
(3) Input TG7 sine wave signal whose frequency is 3.58 MHz (NTSC) and video
amplitude is 0.5 V to pin 45 (Y1 IN).
(4) While turning on and off the chroma trap by controlling the bus, measure chroma
amplitude (VTon) at pin 37 (Y1out) with the chroma trap being turned on and
measure chroma amplitude (VToff) at pin 37 (Y1out) with the chroma trap being
turned off.
Gtr = 20og (VToff / VTon)
(5) Change f0 of the chroma trap to 100 kHz, 50 kHz, 0 and +50 kHz, and perform
the same measurement as the preceding steps 4 and 5 with the respective f0
settings.
(6) Change Q of the chroma trap to 1, 1.5, 2 and 2.5, and perform the same
measurement as the preceding steps 4 through 6. The maximum Gtr shall be
expressed as Gtr3a.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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TB-125.000MBD-T 功能描述:標(biāo)準(zhǔn)時(shí)鐘振蕩器 125.000MHz 3.3V 25ppm -40C to 85C RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負(fù)載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列:
TB-125.000MBE-T 制造商:TXC Corporation 功能描述:OSC MEMS 125.000 MHZ 3.3V SMD
TB-125.000MCD-T 功能描述:標(biāo)準(zhǔn)時(shí)鐘振蕩器 125.000MHz 2.5V 25ppm -40C to 85C RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負(fù)載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列:
TB-125.000MCE-T 制造商:TXC Corporation 功能描述:OSC MEMS 125.000 MHZ 2.5V SMD
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