[AK4958]
Unit
Parameter
min
typ
max
BEEP Input: BEEP pin, Internal Resistance Mode
(PMBP bit =“1”, BPM bit = “0”, BPVCM bit = “0”, BPLVL3-0 bits = “0000”)
Input Resistance
Maximum Input Voltage (Note 16)
Gain
46
-
66
-
86
1.54
k
Vpp
LVCM1-0 bits = “00”
0
+1
-
-
dB
dB
dB
dB
1
-
-
BEEP LOUT
LVCM1-0 bits = “01”
LVCM1-0 bits = “10”
LVCM1-0 bits = “11”
+2.0
+2.0
+4.0
-
-
BEEP SPP/SPN (Note 17)
ALC2 bit = “0”, SPKG1-0 bits = “00”
+4.4
+6.4
+8.4
+11.1
+13.1
+8.4
+10.4
+13.1
+15.1
+8.4
dB
dB
dB
dB
dB
dB
dB
dB
ALC2 bit = “0”, SPKG1-0 bits = “01”
ALC2 bit = “0”, SPKG1-0 bits = “10”
ALC2 bit = “0”, SPKG1-0 bits = “11”
ALC2 bit = “1”, SPKG1-0 bits = “00”
ALC2 bit = “1”, SPKG1-0 bits = “01”
ALC2 bit = “1”, SPKG1-0 bits = “10”
ALC2 bit = “1”, SPKG1-0 bits = “11”
BEEP Input: BEEP pin, External Resistance Mode
-
-
-
-
-
-
-
-
-
-
-
-
-
-
(PMBP bit =“1”, BPM bit = “1”, BPVCM bit = “0”, BPLVL3-0 bits = “0000”), External Input Resistance= 66k
Maximum Input Voltage
Gain (Note 18)
-
-
1.54
Vpp
LVCM1-0 bits = “00”
LVCM1-0 bits = “01”
LVCM1-0 bits = “10”
LVCM1-0 bits = “11”
0
+4.5
dB
dB
dB
dB
4.5
BEEP LOUT
-
-
-
+2.0
+2.0
+4.0
-
-
-
BEEP SPP/SPN
ALC2 bit = “0”, SPKG1-0 bits = “00”
ALC2 bit = “0”, SPKG1-0 bits = “01”
ALC2 bit = “0”, SPKG1-0 bits = “10”
ALC2 bit = “0”, SPKG1-0 bits = “11”
ALC2 bit = “1”, SPKG1-0 bits = “00”
ALC2 bit = “1”, SPKG1-0 bits = “01”
ALC2 bit = “1”, SPKG1-0 bits = “10”
ALC2 bit = “1”, SPKG1-0 bits = “11”
+1.9
+6.4
+8.4
+11.1
+13.1
+8.4
+10.4
+13.1
+15.1
+10.9
dB
dB
dB
dB
dB
dB
dB
dB
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Note 16. BPVCM bit = “1”の時は、max AVDD Vpp です。但し、BEEP-Amp (BPLVL3-0 bitsで設定)通過後の振
幅が0.5Vpp以上の場合、クリップする可能性があります。
Note 17. 無負荷時の理想ゲインです。8Ωの負荷抵抗を付けると、AK4958EGで約-0.4dB、AK4958ECBで約
-0.2dBされます。
Note 18. ゲインは外部入力抵抗に反比例します。
MS1558-J-01-PB
2013/10
- 16 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
