FEDL22620-01
ML22620
Pin
Symbol
I/O
Attribute
Description
Initial
value
*1
14
IOV
DD
P
-
Serial flash memory interface power supply pin.
Connect a bypass capacitor between this pin and the DGND pin.
—
16
XTB
O
Negative
Crystal or ceramic resonator connection pin.
When an external clock is used, leave it open and capacitor is not
required when a crystal or ceramic resonator is connected.
When using a resonator, connect it as close as possible.
Leave it open when not in use.
H
17
XT
I
Positive
Crystal or ceramic resonator connection pin.
A feedback resistor of ab
out 1MΩ is built in between the XT pin and
the XTB pin.
To use an external clock, input from this pin. Delete the capacitor
when a crystal or ceramic resonator is connected.
When using a resonator, connect it as close as possible.
Leave it open when not in use.
L
19
DV
DD
P
-
Digital power supply pin.
Connect a bypass capacitor between this pin and the DGND pin.
—
20
V
DDL
O
-
2.5V regulator output pin.
Used as internal power supply.
Connect a capacitor between this pin and DGND pin as close as
possible.
L
21
SG
O
-
Reference voltage output pin for the built-in speaker amplifier.
Connect a capacitor between this pin and SPGND pin.
L
22
AIN
I
-
Speaker amplifier analog signal input pin.
Initially, input is disabled.
L
23
SPV
DD
P
-
Power supply pin for speaker amplifier.
Connect a bypass capacitor between this pin and the SPGND pin.
—
24
SPGND
G
-
Speaker amplifier ground pin.
—
26
SPP
O
-
Positive output pin of the speaker amplifier.
Line amplifier outputs are also available with AMODE command.
L
27
SPM
O
-
Negative output pin of the speaker amplifier.
Hi-Z
*1 Initial value at reset input and power-down. The pin whose IO is "I" indicates a fixed level from outside.
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Summary of Contents for LAPIS Semiconductor ML22620
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