參數(shù)資料
型號(hào)： LA7567BVA
廠商： SANYO SEMICONDUCTOR CO LTD
元件分類： 接收器
英文描述： AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24
封裝： 0.225 INCH, SSOP-24
文件頁(yè)數(shù)： 17/20頁(yè)
文件大小： 184K
代理商： LA7567BVA
No.7939-6/20
LA7567BVA
Test Conditions
V1. Circuit current . . . . . . . . . . . . [I5]
(1) Internal AGC
(2) Input a 38.9MHz 10mVrms continuous wave to the VIF input pin.
(3) RF AGC Vr MAX
(4) Connect an ammeter to the VCC and measure the incoming current.
V2.V3. Maximum RF AGC voltage, Minimum RF AGC voltage . . . . . . [V14H, V14L]
(1) Internal AGC
(2) Input a 38.9MHz 10mVrms continuous wave to the VIF input pin.
(3) Adjust the RF AGC Vr (resistor value max.) and measure the maximum RF AGC voltage. (F)
(4) Adjust the RF AGC Vr (resistor value min.) and measure the minimum RF AGC voltage. (F)
V4. Input sensitivity. . . . . . . . . . . . . . . . . . . . . . . . [VI]
(1) Internal AGC
(2) fp = 38.9MHz 400Hz 40% AM (VIF input)
(3) Turn off the S1 and put 100k
through.
(4) VIF input level at which the 400Hz detection output level at test point A becomes 0.64Vp-p.
V5. AGC range . . . . . . . . . . . . . . . . . . . . . . . . . . . . [GR]
(1) Apply the VCC voltage to the external AGC IF AGC (pin 17).
(2) In the same manner as for the V4 (input sensitivity),measure the VIF input level at which the detection output
level becomes 0.64Vp-p .............Vi1.
(3)
V6. Maximum allowable input . . . . . . . . . . . . . . . . [VI max]
(1) Internal AGC
(2) fp = 38.9MHz 15 kHz 78% AM (VIF input)
(3) VIF input level at which the detection output level at test point A is video output (Vo)
±1dB
V7. No-signal video output voltage . . . . . . . . . . . [V6]
(1) Apply the VCC voltage to the external AGC, IF AGC (pin 17).
(2) Measure the DC voltage of VIDEO output (A).
V8. Sync. signal tip voltage. . . . . . . . . . . . . . . . . . [V6tip]
(1) Internal AGC
(2) Input a 38.9MHz 10mVrms continuous wave to the VIF input pin.
(3) Measure the DC voltage of VIDEO output (A).
V9. Video output level . . . . . . . . . . . . . . . . . . . . . . [VO]
(1) Internal AGC
(2) fp = 38.9MHz 15kHz 78% AM Vi = 10mVrms (VIF input)
(3) Measure the peak value of the detection output level at test point A. . . . . . . . Vp-p
dB
Vi
Vi1
20log
GR =
相關(guān)PDF資料
PDF描述
LA7567EV-A AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24
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LA7567EV AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24
LA7567EV AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24
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