ASAHI KASEI
[AK4645]
min
typ
max
-
Units
Vpp
Parameter
Mono Input: MIN pin (AIN3 bit = “0”; External Input Resistance=20kΩ)
Maximum Input Voltage (Note 18)
Gain (Note 19)
-
1.98
MIN Æ LOUT/ROUT
LOVL bit = “0”
0
+2
−20
−16.4
+4.5
dB
dB
dB
dB
−4.5
LOVL bit = “1”
HPG bit = “0”
HPG bit = “1”
-
−24.5
-
-
−15.5
-
MIN Æ HPL/HPR
Stereo Input: LIN2/RIN2/LIN4/RIN4 pins; LIN3/RIN3 pins (AIN3 bit = “1”)
Maximum Input Voltage (Note 20)
Gain
-
1.98
-
Vpp
LIN/RIN Æ LOUT/ROUT
LOVL bit = “0”
LOVL bit = “1”
HPG bit = “0”
HPG bit = “1”
0
+2
0
+4.5
dB
dB
dB
dB
−4.5
-
−4.5
-
-
+4.5
-
LIN/RIN Æ HPL/HPR
+3.6
Full-differential Mono Input: IN4+/− pins (L4DIF bit = “1”)
Maximum Input Voltage (Note 21)
Gain
-
3.96
-
Vpp
LOVL bit = “0”
LOVL bit = “1”
LOVL bit = “0”
LOVL bit = “1”
HPG bit = “0”
HPG bit = “1”
dB
dB
dB
dB
dB
dB
IN4+/− Æ LOUT/ROUT
(LODIF bit = “0”)
IN4+/− Æ LOP/LON
(LODIF bit = “1”, Note 22)
IN4+/− Æ HPL/HPR
−10.5
−6
−4
0
+2
−6
−2.4
−1.5
-
−4.5
-
−10.5
-
-
+4.5
-
−1.5
-
Power Supplies:
Power-Up (PDN pin = “H”)
All Circuit Power-up:
AVDD+DVDD+TVDD (Note 23)
HVDD: HP-Amp Normal Operation
No Output (Note 24)
-
-
16
5
24
8
mA
mA
Power-Down (PDN pin = “L”) (Note 25)
AVDD+DVDD+TVDD+HVDD
-
1
100
µA
Note 18. Maximum voltage is in proportion to both AVDD and external input resistance (Rin). Vin = 0.6 x AVDD x Rin
/ 20kΩ (typ).
Note 19. The gain is in inverse proportion to external input resistance.
Note 20. Maximum Input voltage is proportional to AVDD voltage. Vout = 0.6 x AVDD (typ).
Note 21. Maximum Input voltage is proportional to AVDD voltage. Vout = (IN4+) − (IN4−) = 1.2 x AVDD (typ). The
signals with same amplitude and inverted phase should be input to IN4+ and IN4− pins, respectively.
Note 22. Vout = (LOP) − (LON) at LODIF bit = “1”.
Note 23. PLL Master Mode (MCKI=12.288MHz) and PMADL = PMADR = PMDAC = PMLO = PMHPL = PMHPR =
PMVCM = PMPLL = MCKO = PMMIN = PMMP = M/S bits = “1”. MPWR pin outputs 0mA.
AVDD=11mA(typ), DVDD=3mA(typ), TVDD=2mA(typ).
EXT Slave Mode (PMPLL = M/S = MCKO bits = “0”): AVDD=10mA(typ), DVDD=3mA(typ),
TVDD=0.03mA(typ).
Note 24. PMADL = PMADR = PMDAC = PMLO = PMHPL = PMHPR = PMVCM = PMPLL = PMMIN bits = “1”.
Note 25. All digital input pins are fixed to TVDD or HVSS.
MS0543-E-00
2006/09
- 10 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
