an12949a Panasonic Corporation of North America, an12949a Datasheet - Page 12

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

AN12949A
No.
Pin
10
11
12
8
9
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.
AC –16 dBV
and voltage
PREOUT_R
Waveform
SP_INR
DC 2 V
DC 2 V
VREF
N.C.
N.C.
GND (0 V)
GND
VREG (4.2 V)
8
GND
VREG (4.2 V)
VREG
9
10
Internal circuit
259k
259k
—
—
500
5k
SDF00043BEB
9
= Equal to or less
Input impedance
Input impedance
= About 130 kΩ
Impedance
impedance
than 10 Ω
= Hi-Z
Output
—
—
Feedback terminal of Rch input
amplifier of speaker amplifier system.
The gain of the Rch input amplifier
can be set by connecting external
resistance with Pin8 and Pin9.
Output terminal of Rch input amplifier
of speaker amplifier system.
Please connect external resistance for
the gain setting.
The reference voltage terminal for
determining DC bias of the output
stage of a speaker amplifier system.
Please connect an external capacitor
to remove a ripple.
N.C.
You can use it as other pattern.
N.C.
You can use it as other pattern.
Description
12