AKD4730 Datasheet, PDF (1/29 Pages) Asahi Kasei Microsystems – AK4730-100W Evaluation Board Rev.4

ASAHI KASEI
[AKD4730-100W]
AKD4730-100W
AK4730-100W Evaluation Board Rev.4
GENERAL DESCRIPTION
The AKD4730-100W is the evaluation board of AK4730, which is one chip modulator built in two channel
PWM Modulators and Pre-Drivers of MOSFETs for Class-D Amplifier. It has the interface of the
evaluation board of AKM’s ADC, it is possible to evaluate it easily. The AKD4730 also has the digital
audio interface and can achieve the interface with digital audio systems via opt-connector.
„ Ordering guide
AKD4730-100W --- AK4730-100W Evaluation Board
(Cable for connecting with printer port of IBM-AT compatible PC
and control software are packed with this.) This control software can’t operate
on Windows NT.
† MOSFET drivers is built in
FUNCTION
† Compatible with 2 types of interface
- The optical input
- Direct interface with AC3 decoder by 10pin header
† 10pin header for serial control interface
Opt In
DIR
AK4114
10pin Header A/D Data
10pin Header Control Data
12V
GND ^48V
Regulator
5V
Output power
100W/ 8ohm
Lch
E-Bridge
AK4730
Rch
E-Bridge
AKM recommend MOSFETs of IRF9Z34N, IRFZ24N in International Rectifier products for E-Bridge.
The inductance for LPF is TRTT14-J026 of TDK’s product.
Figure 1. AKD4730-100W Block Diagram
<KM074904>
-1-
2005/07