AKD4145-A Datasheet, PDF (1/32 Pages) Asahi Kasei Microsystems – Evaluation board Rev.3 for AK4145

[AKD4145-A]
AKD4145-A
Evaluation board Rev.3 for AK4145
GENERAL DESCRIPTION
The AKD4145 is an evaluation board for the AK4145, BTSC Encoder with D/A Converter, which is
optimized for Digital AV application. The AKD4145 has the analog/digital audio interface and can
achieve the interface with analog/digital audio systems via BNC/OPT-connector.
„ Ordering guide
AKD4145-A
--- Evaluation board for AK4145
(Cable for connecting with printer port of IBM-AT,compatible PC and control software are
packed with this. This control software does not support Windows NT.)
FUNCTION
• ADC with analog input
• DIR with optical input
• 10pin Header for digital audio I/F and serial control I/F
12V
AINL
5V
Logic1 Logic2 DGND
(3.3V) (3.3V~1.8V) (0V)
T1:5V=>3.3V
T2:3.3V=>1.8V
T3:12V=>5V
Regulator
For OP-Amp
For
74AVC8T245
74HC14
74LVC07
AK4114
AK5357
(ADC)
AGND AVDD DVDD TVDD
(0V) (3.3V) (1.8V) (3.3V~1.8V)
OP-Amp
AINR
Opt In
COAX
AK4145
(Encoder)
AK4114
(DIR)
X’tal
PORT1
DSP
DATA
PORT2
Serial
Control
Composite
Audio
Video / 27M
<KM090003>
Figure. 1 AKD4145 Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual
-1-
2008/08