User Manual

Preliminary
2017 Microchip Technology Inc.
DS60001403C-Page 49
TABLE 8-4: LED DRIVER
Parameter
Min.
Typical
Max.
Unit
Open-drain Voltage
3.6
V
Programmable Current Range
0
5.25
mA
Intensity Control
16
step
Current Step
0.35
mA
Power Down Open-drain Current
1
μA
Shutdown Current
1
μA
Note 1: Test condition: BK_OUT = 1.8V with +25ºC temperature.
2: These parameters are characterized, but not tested in manufacturing.
TABLE 8-5: AUDIO CODEC ANALOG TO DIGITAL CONVERTER
T = 25
o
C, VDD = 2.8V, 1 kHz sine wave input, Bandwidth = 20 Hz to 20 kHz
Parameter (Condition)
Min.
Typical
Max.
Unit
Resolution
16
Bit
Output Sample Rate
8
48
kHz
Signal to Noise Ratio (Note 1)
(SNR at MIC or Line-in mode)
92
dB
Digital Gain
-54
4.85
dB
Digital Gain Resolution
2 to 6
dB
MIC Boost Gain
20
dB
Analog Gain
60
dB
Analog Gain Resolution
2.0
dB
Input full-scale at maximum gain (differential)
4
mV/rms
Input full-scale at minimum gain (differential)
800
mV/rms
3 dB bandwidth
20
kHz
Microphone mode (input impedance)
24
kOhm
THD+N (microphone input) at 30 mV/rms input
0.02
%
Note 1: fin = 1 kHz, B/W = 20 Hz to 20 kHz, A-weighted, THD+N < 1%, 150 mVPP input.
2: These parameters are characterized, but not tested in manufacturing.