[AK4646]
Units
min
typ
max
Parameter
Speaker-Amp Characteristics: DAC → SPP/SPN pins, ALC=OFF,OVOL=0dB, CL=3μF, Rserial=10Ω x 2, BTL,
SVDD=3.8V
Output
Voltage
(Note 18)
S/(N+D)
(Note 19)
SPKG1-0 bits = “11”, -0.5dBFS
-
-
6.33
60
-
-
Vpp
dB
SPKG1-0 bits = “11”, -0.5dBFS
(A-weighted)
S/N
-
50
-
90
-
-
-
-
3
dB
Ω
μF
Load Impedance (Note 20)
Load Capacitance (Note 20)
Mono Input: MIN pin (External Input Resistance=20kΩ)
Maximum Input Voltage (Note 21)
Gain (Note 22)
-
1.98
-
Vpp
MIN Æ LOUT/ROUT LOVL1-0 bit = “00”
LOVL1-0 bit = “01”
-4.5
0
+4.5
dB
dB
dB
dB
-
-
-
+2
+4
+6
-
-
-
LOVL1-0 bit = “10”
LOVL1-0 bit = “11”
MIN Æ SPP/SPN
ALC bit = “0”, SPKG1-0 bits = “00”
ALC bit = “0”, SPKG1-0 bits = “01”
ALC bit = “0”, SPKG1-0 bits = “10”
ALC bit = “0”, SPKG1-0 bits = “11”
ALC bit = “1”, SPKG1-0 bits = “00”
ALC bit = “1”, SPKG1-0 bits = “01”
ALC bit = “1”, SPKG1-0 bits = “10”
ALC bit = “1”, SPKG1-0 bits = “11”
Power Supplies:
+0.1
+4.6
+6.6
+8.6
+10.6
+6.6
+8.6
+9.1
dB
dB
dB
dB
dB
dB
dB
dB
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+10.6
+12.6
Power Up (PDN pin = “H”)
All Circuit Power-up (Note 23)
AVDD+DVDD
-
-
15
4
23
12
mA
mA
SVDD (No Output)
Power Down (PDN pin = “L”) (Note 24)
AVDD+DVDD+SVDD
-
1
100
μA
Note 19. In case of measuring at SPP and SPN pins.
Note 20. Load impedance is total impedance of series resistance and piezo speaker impedance at 1kHz in Figure 34. Load
capacitance is capacitance of piezo speaker. When piezo speaker is used, 10Ω or more series resistors should be
connected at both SPP and SPN pins, respectively.
Note 21. Maximum voltage is in proportion to both AVDD and external input resistance (Rin).
Vin = 0.636 x AVDD x Rin / 20kΩ (typ).
Note 22. The gain is in inverse proportion to external input resistance
Note 23. PLL Master Mode (MCKI=12MHz); PMADL = PMADR = PMDAC = PMLO = PMSPK = PMVCM = PMPLL
= MCKO = PMBP = PMMP = M/S bits = “1”. MPWR pin outputs 0mA.
AVDD= 10mA(typ), DVDD=5mA(typ).
EXT Slave Mode (PMPLL = M/S = MCKO bits = “0”): AVDD=10mA(typ), DVDD=4mA(typ).
Note 24. All digital input pins are fixed to DVDD or DVSS.
MS0557-E-05
2011/01
- 10 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
