an12949a Panasonic Corporation of North America, an12949a Datasheet - Page 14

• Manufacturer Part Number: an12949a
• Description: Audio Power Ic For Note Pc
• Manufacturer: Panasonic Corporation of North America

AN12949A
No.
Pin
20,
22,
21
23
24
25
26
Technical Data (continued)
I/O block circuit diagrams and pin function descriptions (continued)
Note) The characteristics listed below are reference values based on the IC design and are not guaranteed.
and voltage
SP_OUTL+
AC –2 dBV
SP_OUTL–
AC –2 dBV
Waveform
GND_SPL
DC 2.5 V
DC 2.5 V
DC 0 V
N.C.
N.C.
Internal circuit
400k
400k
—
—
—
Pin20, 21
Pin22, 23
VCCSP
VCCSP
GNDSPL
GNDSPL
SDF00043BEB
= Equal to or less
= Equal to or less
Impedance
impedance
impedance
Output
Output
than 1 Ω
than 1 Ω
—
—
—
Output terminal of Lch speaker
amplifier. It is BTL output.
Lch positive aspect output pin:
Lch reverse-aspect output pin:
To decrease the voltage loss by the
wire resistance when maximum
outputting it the output is made two
terminals.
Please connect Pin 20 to Pin 21 and
Pin 22 to Pin 23 respectively on P
board pattern.
Because a large current flows, it is
preferable to separate the GND line to
terminal GND (Pin13, Pin24) for the
speaker amplifier and other terminals
GND as much as possible on P board
pattern.
N.C.
You can use it as other pattern.
N.C.
You can use it as other pattern.
Pin20, Pin21
Pin22, Pin23
Description
14