User Manual
BM62/64
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.