AK4203 Datasheet, PDF (7/14 Pages) Asahi Kasei Microsystems – Stereo Cap-less LINE-Amp and Video-Amp

[AK4203]
ػೳઆ໌
■ ෛిݯੜ੒ճ࿏
಺ଂ͢Δෛిݯੜ੒ճ࿏(Figure 3)ʹΑΓΦʔσΟΦɾϏσΦΞϯϓʹෛిݯΛ͢څڙΔ͜ͱͰɺΦʔσΟΦͷόΠΞ
εϨϕϧͼٴϏσΦͷϖσελϧϨϕϧΛ 0V ͱͯ͠৴߸Λग़ྗ͠·͢(Figure 4, Figure 5)ɻͦͷͨΊɺDCΧοτ༻ͷ
ίϯσϯα͕ෆཁͱͳΓ·͢ɻ
AK4203
VDD2
Charge
Pump
Negative Power
CP
CN VSS1
VEE
C2
(+)
10uF
1uF C1
(+)
Note 10. C1 ͓Αͼ C2 ͷίϯσϯαʹ͸௿ ESR(౳Ձ௚ྻ఍߅)ͷ෦඼Λ࢖༻ͯ͠Լ͍͞ɻۃੑ෇͖ͷίϯσϯαΛ࢖
༻͢Δ৔߹ɺͦΕͧΕ CP ଆɺVSS1 ଆʹίϯσϯαͷਖ਼ࢠ୺ۃΛ઀ଓͯ͠Լ͍͞ɻ
Figure 3. ෛిݯੜ੒ճ࿏
AK 42 03
0V
AOUTR
(AOUTL)
2 Vrms
Figure 4. Audio ৴߸ग़ྗ
A K42 03
75Ω
VOUT
75Ω
0V
Figure 5. Video ৴߸ग़ྗ
MS1376-J-00
-7-
2012/02