AK4213 Datasheet, PDF (7/38 Pages) Asahi Kasei Microsystems – Mono Class-D SPK-Amp with Stereo Cap-less HP-Amp

[AK4213]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=PVDD=3.3V, SVDD=3.6V, TVDD=1.8V, VSS1=VSS2=VSS3=0V; Input Signal Frequency =1
kHz; Measurement band width=10Hz ∼ 20kHz; Headphone-Amp: R_L =16Ω; Speaker-Amp: R_L =8Ω + 10μH; Charge
Pump Circuit External Capacitance: C1=C2= 2.2μF (Figure 4); unless otherwise specified)
Parameter
min
typ
max
Units
LIN1, RIN1, LIN2, RIN2, LIN3, RIN3 pins
Input Resistance
25
50
110
kΩ
Input Analog Volume: L1V3-0, R1V3-0, L2V3-0, R2V3-0, L3V3-0, R3V3-0 bits
Step Size
Gain Control Range
1
2
3
dB
-20
-
+10
dB
MIX-Amp: MIXO pin
Load Resistance
10
-
Load Capacitance
-
-
Headphone-Amp: LIN/RIN Æ HPL/HPR pins, HPGA = 0dB
-
kΩ
30
pF
Output Power (THD+N=1%)
SVDD=3.3V
THD+N:
0.7Vrms Single-ended Input, Po = 30mW
Output Noise Level (A-weighted) (Note 11)
Interchannel Gain Mismatch
Load Resistance
Load Capacitance
Output Voltage: 0.7Vrms Single-ended Input
PSRR
217Hz (Note 12)
1kHz (Note 12)
217Hz (Note 13)
1kHz (Note 13)
Interchannel Isolation
-
64
-
-58
-
24
-
0.2
16
-
-
-
0.62
0.69
-
70
-
70
-
100
-
80
60
80
-
mW
-40
dB
40
μVrms
0.8
dB
-
Ω
300
pF
0.76
Vrms
-
dB
-
dB
-
dB
-
dB
-
dB
Headphone Analog Volume (HPGA4-0 bits)
Step Size
0.5
2
3.5
dB
Gain Control Range
-50
-
+12
dB
Class-D Speaker-Amp: LIN or RIN Æ SPP/SPN; BTL, ALC = OFF, Input Volume=SPGA=0dB, ALC OFF
Output Power (THD+N=10%)
SVDD=5.0V
SVDD=3.6V
Output Level
SVDD=5.0V, Input Level = 0.85Vrms (Note 14)
SVDD=3.6V, Input Level = 0.64Vrms (Note 15)
SVDD=3.6V, Input Level = 0.46Vrms (Note 16)
THD+N:
Po=0.25W, Input Level =0.46Vrms (Note 16)
Output Noise Level (A-weighted) (Note 17)
Load Resistance
Load Capacitance (Note 21)
PSRR
217Hz (Note 18)
1kHz (Note 18)
217Hz (Note 19)
1kHz (Note 19)
Switching Frequency
Current Limit at Short (Note 20)
Start-Up Time
-
1.6
-
0.8
-
2.7
-
2.0
1.33
1.48
-
-65
-
85
8
-
-
-
-
60
-
50
-
50
-
50
150
250
-
40
18
30
-
W
-
W
-
Vrms
-
Vrms
1.63
Vrms
-40
dB
150
μVrms
-
Ω
300
pF
-
dB
-
dB
-
dB
-
dB
400
kHz
120
mA
48
ms
MS0949-E-01
-7-
2008/07