AK4645AEZ Datasheet, PDF (10/85 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

[AK4645A]
Parameter
min
typ
Mono Input: MIN pin (AIN3 bit = “0”; External Input Resistance=20kΩ)
Maximum Input Voltage (Note 18)
-
1.98
Gain (Note 19)
MIN Æ LOUT/ROUT LOVL bit = “0”
−4.5
0
LOVL bit = “1”
-
+2
MIN Æ HPL/HPR
HPG bit = “0”
−24.5
−20
HPG bit = “1”
-
−16.4
Stereo Input: LIN2/RIN2/LIN4/RIN4 pins; LIN3/RIN3 pins (AIN3 bit = “1”)
Maximum Input Voltage (Note 20)
-
1.98
Gain
LIN/RIN Æ LOUT/ROUT LOVL bit = “0”
−4.5
0
LOVL bit = “1”
-
+2
LIN/RIN Æ HPL/HPR
HPG bit = “0”
−4.5
0
HPG bit = “1”
-
+3.6
Full-differential Mono Input: IN4+/− pins (L4DIF bit = “1”)
Maximum Input Voltage (Note 21)
-
3.96
Gain
IN4+/− Æ LOUT/ROUT
LOVL bit = “0”
−10.5
−6
(LODIF bit = “0”)
LOVL bit = “1”
-
−4
IN4+/− Æ LOP/LON
LOVL bit = “0”
−4.5
0
(LODIF bit = “1”, Note 22) LOVL bit = “1”
-
+2
IN4+/− Æ HPL/HPR
HPG bit = “0”
−10.5
−6
HPG bit = “1”
-
−2.4
Power Supplies:
Power Up (PDN pin = “H”)
All Circuit Power-up:
AVDD+DVDD+TVDD (Note 23)
-
12
HVDD: HP-Amp Normal Operation
No Output (Note 24)
-
3
Power Down (PDN pin = “L”) (Note 25)
AVDD+DVDD+TVDD+HVDD
-
1
max
-
+4.5
-
−15.5
-
-
+4.5
-
+4.5
-
-
−1.5
-
+4.5
-
−1.5
-
Units
Vpp
dB
dB
dB
dB
Vpp
dB
dB
dB
dB
Vpp
dB
dB
dB
dB
dB
dB
18
mA
4.5
mA
100
μA
Note 18. ࠷େೖྗిѹ͸AVDDͱ֎෦ೖྗ఍߅(Rin)ʹൺྫ͠·͢ɻVin = 0.6 x AVDD x Rin / 20kΩ (typ).
Note 19. ήΠϯ͸֎෦ೖྗ఍߅ʹ൓ൺྫ͠·͢ɻ
Note 20. ࠷େೖྗిѹ͸AVDDʹൺྫ͠·͢ɻVin = 0.6 x AVDD (typ).
Note 21. ࠷େೖྗిѹ͸AVDDʹൺྫ͠·͢ɻVin = (IN4+) − (IN4−) = 1.2 x AVDD (typ).
ಉ͡ৼ෯ͷٯ૬৴߸ΛIN4+, IN4− pinsʹͦΕͧΕೖྗͯ͠Լ͍͞ɻ
Note 22. Vout = (LOP) − (LON) at LODIF bit = “1”.
Note 23. EXT Slave Mode (M/S = bit = “0”, MCKI = 12.288MHz)ͰɺPMVCM = PMADL = PMADR = PMDAC =
PMLO = PMHPL = PMHPR = PMMIN = PMMP = “1”ͷ৔߹:
AVDD=9mA(typ), DVDD=3mA(typ), TVDD=0.03mA(typ).
Note 24. PMADL = PMADR = PMDAC = PMLO = PMHPL = PMHPR = PMVCM = PMMIN bits = “1”ͷ৔߹Ͱ͢ɻ
Note 25. શͯͷσΟδλϧೖྗϐϯΛTVDD·ͨ͸HVSSݻʹఆͨ࣌͠ͷ஋Ͱ͢ɻ
MS0986-J-00
- 10 -
2008/07