AN2905FHQ Datasheet, PDF (1/9 Pages) Panasonic Semiconductor – Sound input/output interface IC for digital still camera

ICs for Digital Still Camera
AN2905FHQ
Sound input/output interface IC for digital still camera
I Overview
The AN2905FHQ is a sound input/output interface IC
which is optimum for incorporation of sound functions in
a digital still camera. The sound pre-processing prior to the
digital processing and sound post-processing after DAC
are integrated on a single chip. This IC is effective to make
the equipment compact.
I Features
• Functions required for the sound pre- and post-processings
are integrated on a single chip
• The built-in microphone amp. and microphone power
supply
• A built-in 0.5 W BTL amp.
• Built-in SP power save and electronic volume func-
tions
• A beep circuit with electronic volume
• A built-in internal microphone amp. on/off function
• A built-in AGC switch
• A built-in AGC to a speaker amp.
(Prevents the sound distortion, trembling sound and wire
breakdown of the speaker at excessively high voltage
signal input)
I Applications
• Digital still camera (DSC)
36
37
9.00±0.20
7.00±0.20
25
24
Unit: mm
48
1
(0.75)
0.50
13
12
0.20±0.05
0.10 M
(1.00)
Seating plane
0° to 10°
0.50±0.20
LQFP048-P-0707A
I Application Circuit
Power supply for microphone
Microphone input
Speaker
Recorder output
A/D converter
D/A converter
Playback input
Line output Beep input
Publication date: August 2001
SDB00078AEB
1