AK4201 Datasheet, PDF (7/13 Pages) Asahi Kasei Microsystems – Stereo Cap-less HP-Amp

CONFIDENTIAL
[AK4201]
ANALOG CHARACTERISTICS (AVDD=PVDD=3.3V)
(AVDD=PVDD=3.3V; PDN=3.3V; Ta=25ºC; VSS1=VSS2=0V; Input Signal Frequency =1kHz; Measurement band
width=10Hz ∼ 20kHz; Gain=+3.5dB (Ri=20kΩ, Rf=30kΩ); Headphone-Amp: R_L =16Ω; Charge Pump Circuit External
Capacitance: C1=C2= 1μF (Figure 3), unless otherwise specified)
Parameter
min
typ
max
Units
Output Power
R_L =16Ω, 0.46Vrms Input
THD+N
0.46Vrms Input; Po = 30mW @ R_L =16Ω
0.27Vrms Input; Po = 10mW @ R_L =16Ω
1.33Vrms Input; Vo = 2.0Vrms @ R_L =5kΩ
S/N (Signal-to-Noise Ratio)
-
30
-
mW
-
-40
TBD
dB
-60
TBD
dB
-
-90
TBD
dB
R_L =16Ω (A-weighted) (Note 10)
R_L =5kΩ (A-weighted) (Note 11)
PSRR (Power Supply Rejection Ratio) (Note 12)
217Hz
1kHz
Interchannel Isolation
R_L =16Ω
R_L =5kΩ
Output Offset Voltage
Start-up time (Note 13)
Power Supplies
AVDD + PVDD (Normal Mode; No Output)
AVDD + PVDD (Power-Down Mode, PDN =0V)
92
98
100
106
-
dB
-
dB
-
70
-
70
-
dB
-
dB
60
80
-
dB
-
80
-
dB
-
±0.5
±5.0
mV
-
-
50
ms
-
4
TBD
mA
-
0.1
TBD
μA
Note 10. In case of 0.46Vrms Input (Po=30mW).
Note 11. In case of 1.33Vrms Input (Vo=2Vrms).
Note 12. PSR is applied to AVDD and PVDD with 100mVpp sine wave.
Note 13. The time from PDN pin= “H” to when the AK4201 can output the data.
Rev 0.2
2008/07
-7-