[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 16)
S/(N+D)
(Note 17)
-
-
6.33
60
-
-
Vpp
dB
SPKG1-0 bits = “11”, -0.5dBFS
SPKG1-0 bits = “11”, -0.5dBFS
S/N
(A-weighted)
-
50
-
90
-
-
-
-
3
dB
Ω
μF
Load Impedance (Note 18)
Load Capacitance (Note 18)
Mono Input: MIN pin (External Input Resistance=20kΩ)
Maximum Input Voltage (Note 19)
Gain (Note 20)
-
1.98
-
Vpp
MIN Æ LOUT/ROUT
-4.5
0
+4.5
dB
dB
dB
dB
LOVL1-0 bit = “00”
LOVL1-0 bit = “01”
LOVL1-0 bit = “10”
LOVL1-0 bit = “11”
-
-
-
+2
+4
+6
-
-
-
MIN Æ SPP/SPN
+0.1
+4.6
+6.6
+8.6
+10.6
+6.6
+8.6
+9.1
dB
dB
dB
dB
dB
dB
dB
dB
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”
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+10.6
+12.6
Power Supplies:
Power Up (PDN pin = “H”)
All Circuit Power-up (Note 21)
AVDD+DVDD
-
-
15
4
23
12
mA
mA
SVDD (No Output)
Power Down (PDN pin = “L”) (Note 22)
AVDD+DVDD+SVDD
-
1
100
μA
Note 17. In case of measuring at SPP and SPN pins.
Note 18. 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 19. Maximum voltage is in proportion to both AVDD and external input resistance (Rin).
Vin = 0.636 x AVDD x Rin / 20kΩ (typ).
Note 20. The gain is in inverse proportion to external input resistance
Note 21. 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 22. All digital input pins are fixed to DVDD or DVSS.
MS0557-E-02
2007/05
- 10 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
