AK4645 Datasheet, PDF (10/96 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

ASAHI KASEI
[AK4645]
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)
-
16
HVDD: HP-Amp Normal Operation
No Output (Note 24)
-
5
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
24
mA
8
mA
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
- 10 -
2006/09