AK4632 Datasheet, PDF (8/70 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Mono CODEC with ALC & MIC/SPK/Video-AMP

ASAHI KASEI
[AK4632]
Parameter
min
typ
max
Units
Speaker-Amp Characteristics: SPP/SPN pins, MIN Æ SPP/SPN, ALC2=OFF, R_L=8Ω, BTL, SVDD=3.3V
Output Voltage SPKG1-0 bits = “00” (-0.5dBFS)
2.47
3.09
3.71
Vpp
(Note 14)
SPKG1-0 bits = “01” (-0.5dBFS)
3.10
4.00
4.80
Vpp
S/(N+D)
at 150mW Output
20
60
-
dB
at 240mW Output
-
50
-
dB
at 400mW Output
-
20
-
dB
S/N (Note 16)
80
90
-
dB
Load Resistance
8
-
-
Ω
Load Capacitance
-
-
30
pF
Speaker-Amp Characteristics: MIN Æ SPP/SPN pins, ALC2=OFF, C_L=3µF, R_serial=10Ω x 2, BTL, SVDD=5.0V
Output Voltage
SPKG1-0 bits = “10”
-
6.72
-
Vpp
(Note 14)
SPKG1-0 bits = “11”
6.80
8.50
10.20
Vpp
S/(N+D) (Note 14) SPKG1-0 bits = “10”
-
60
-
dB
(Note 15)
SPKG1-0 bits = “11”
20
50
-
dB
S/N (Note 15) (Note 16)
80
80
90
dB
Load Impedance (Note 17)
50
-
-
Ω
Load Capacitance
-
-
3
µF
BEEP Input: BEEP pin, External Input Resistance= 20kΩ
Maximum Input Voltage (Note 18)
-
1.98
-
Vpp
Output Voltage (Input Voltage=0.6Vpp)
BEEP Æ SPP/SPN (SPKG1-0 bits = “00”)
0.74
1.48
2.22
Vpp
BEEP Æ AOUT
0.3
0.6
0.9
Vpp
Mono Input: MIN pin
Maximum Input Voltage (Note 19)
-
2.18
-
Vpp
Input Resistance
(Note 20)
12
24
36
kΩ
Mono Output: MOUT pin, DAC→ MOUT
Output Voltage (Note 21)
1.78
1.98
2.18
Vpp
Load Resistance
10
-
-
kΩ
Load Capacitance
-
-
30
pF
Note 14. The full scale of Input signal of MIN pin is 1.98Vpp.
Note 15. In case of measuring between SPP pin and SPN pin directly.
Note 16. There are no relations with the setup of SPKG1-0 bits, and it is the same value.
Note 17. Load impedance is total impedance of series resistance and piezo speaker impedance at 1kHz in Figure 35. 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 18. The maximum input voltage of the BEEP is proportional to AVDD voltage and external input resistance(Rin).
Vout = 0.6 x AVDD x Rin/20kΩ(max).
Note 19. Maximum Input Voltage is proportional to AVDD voltage. Vin = 0.66 x AVDD (max)
Note 20. When ALC2 Gain is changed, this typical value changes between 22kΩ and 26kΩ.
Note 21. Output Voltage is proportional to AVDD voltage. Vout = 0.6 x AVDD (typ)
MS0396-E-00
-8-
2005/06