m41t00aud STMicroelectronics, m41t00aud Datasheet - Page 9

• Manufacturer Part Number: m41t00aud
• Description: Serial Real-time Clock With Audio
• Manufacturer: STMicroelectronics

Figure 4.
R2 for unity gain
Set R1’s to 2x
be a minimum
Typical hookup example
of 10kΩ
Audio
R2 should
SDA
In
SCL
R1 x 20kΩ
R1 x 20kΩ
Optional: can
sum additional
audio inputs
R1 20kΩ
32.768kHz
3.3V
3.3V
Place near
pin 4
OSCO
0.1μF
R2 10kΩ
OSCI
SDA 8
AIN
SCL 7
FBK 12
Package Metal Heatsink:
exposed pad on back of
IC package
10
1
2
SWITCHOVER
V DD
32KHz
3.3V
2
BATTERY
OSC
I 2 C
CHARGE
TRICKLE
M41T00AUD
V INT
SECTION
256/512Hz
ONE GEN
AUDIO
1.0μF
RTC
Place near
pin 15
V DD
2
1μF
13
16
6
5
3.3V
AOUT+
AOUT–
V BACK
Either/or, but
not both
4.7kΩ
IRQ/FT/OUT
+
Optional connection
to micro
8Ω
or higher
Lithium
Cell
Battery
(alternative)
ai13325
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