www.austriamicrosystems.com/AS3561 Revision 0.11 - preliminary 5 - 18
AS3561
Data Sheet - Electrical Characteristics
6 Electrical Characteristics
AVDD=3.6V, T
A
=25 ºC, Rload = 15 + 32 : (headphone + external protection resistor), unless otherwise specified.
Table 3. Operating Conditions
Symbol Parameter Conditions Min Typ Max Units
General Operating Conditions
AVDD
Supply Voltage
2.3 4.8 V
Rail Voltages HPVDD, HPVSS
(Buck and CP output)
0.8 0.9 1.0 V
1.15 1.25 1.35 V
1.7 1.8 1.9 V
I
DD
Quiescent Current
both channels enabled, no audio signal 0.9 1.5 mA
I
SD
Shutdown Current
SW shutdown 1.8 5 uA
I
S
Supply Current
Output: 2x100μW @ 3dB Crest Factor 1.7 2.3 mA
Output: 2x500μW @ 3dB Crest Factor 2.85 3.6 mA
Output: 2x1mW @ 3dB Crest Factor 3.7 4.6 mA
T
A
Operating Temperature Range -30 25 +85 ºC
t
WAKEUP
Wakeup Time 10 15 ms
Input Interfaces
V
IL
Low-level input voltage (SCL, SDA)
AVDD 2.9V to 4.5V 0.6 V
V
IH
High-level input voltage (SCL, SDA)
AVDD 2.9V to 4.5V 1.2 V
V
HYST
Hysteresis (SCL, SDA)
50 100 200 mV
Z
IN
Input Impedance Line Inputs
Differential 20 k:
Single Ended 10 k:
HPA Output
V
OUT
Output Voltage
Rload=16:, THD+N=1%, L+R in phase
0.7
V
rms
Rload=32:, THD+N=1%, L+R in phase
1.0
V
rms
Output DC Offset Both channels enabled
500 μV
Z
OUT
Output Impedance In HiZ mode
<40 KHz 10 k:
6 MHz 500 :
36 MHz 75 :
Voltage applied to Output; HPR, HPL
when SWS = 0, HiZ_L = HiZ_R = 1,
device in HI-Z mode
-1.8 1.8 V
C
LOAD
Capacitive Load
ext. cap, 15: series resistor
0.8 5 100 nF
ext cap, directly connected
100 pF
Z
OOT,SD
Output impedance in shutdown
SWS = 1 8 k:
Voltage applied to Output; HPR, HPL when SWS = 1, device disabled
-0.3 3.6 V
Audio Parameters
THD+N
Total Harmonic Distortion + Noise
700mV
rms
, 1KHz
0.02 0.04 %
PSRR
Power Supply Rejection Ratio Gain 0dB @217 Hz
90 dB
SNR
Signal-to-Noise Ratio
1V
rms
, 1KHz
100 105 dB
Channel Separation
>16: (Headset)
60 dB
>10k: (Lineout)
80 dB
