[AKD7756-HF]
<KM101400>
2010/06
- 3 -
■
Description
No. Name
Function
(1)
CONTROL PORT
This port is used when the control code is written to the AK7756 via PC, or when
flash memory data is downloaded.
(2)
MONITOR
Connector for monitoring board.
(3) Reset
(push switch)
Without Control box
AK7756 IRSTN pin control (PUSH: RESET).
With Control box: Disabled
When controlling the AKD7756-HF by a PC, this reset switch is not valid and a
reset should be made by control soft.
(4) STATUS
(LED)
RED: It shows a status of the AK7756’s STO pin. (Light: “H”, Off: “L”)
BLUE: It shows a Bluetooth status.
(Blinking: pairing wait, Off: paring complete)
(5)
FRONT DIP SW
1:I2CSEL Control BUS select of the AK7756
H:I2C
, L: 4WIRE
2:BT/CODEC Far-end connection select
H: Wireless (Blue Tooth)
L: Wired (AK2300)
3:STO/SDLED AK7756 Pin No. 10 output select (STO/RDY/SDOUT1 pin)
H: MONITER LED
L: FRONT PANEL LED
4:MODE1 AK7756 Pin No. 6 control when I2CSEL (EXTEEP pin)
H: No. 6pin of AK7756 is “H”
L: No. 6pin of AK7756 is “L”
5:MODE2 AK7756 Pin No. 17 control (JX1 pin)
H: Controlled by DSP MODE
L: Controlled by FRONT DIP SW
(6) DSP
MODE
(LED + Toggle Switch)
Human Interface Function (JX1)
0: L 1: H
(7) JX0/JX1
(push switch)
Human Interface Function (JX)
Push: H Release: L
(8) HOOK
(push switch)
Bluetooth Unconnected: The AKD7756 becomes stand-by sate when pushing this
switch for seven seconds.
Bluetooth connected: Off Hook / On Hook can be controlled by this switch.
(9)
BT – RST
(push switch)
Reset Control of internal Bluetooth module
Push: Reset Release: Reset release;
(10)
+12V (power supply)
12VDC Power Supply.
Supply 12V by attached power cable.
(11) GND
Ground
(12)
Analog interface
RCA ports for analog Inputs/Outputs
MIC-IN: AIN input of the AK7756 (Single-End, Microphone Input)
FES–OUT: VR output of the AK2300 (Wire Phone Voice Output)
FES-IN: VFTN input of the AK2300 (Wire Phone Voice Input)
SPK-OUT: AOUT output of the AK7756 (Line Output)
S-AMPOUT: VCP/N output of the AK7835 (Speaker Output)
(13)
VCC-OUT
For external MICBIAS. Outputs 5V
(14)
SPK_PDN
Control of the AK7835
Short: Power Down Open: Power Up
(15)
PCB DIP SW1
1:DIF1 Data Interface Select of the AK2300
L: PCM_Short, I2S
H: PCM_Long, Left justified
2,3:DIF0[1:0] Data interface switch of the AK2300
[DIF0_1,DIF0_0]=[L,L]A-law
=[L,H]µ -law
=
[H,x]
Linear PCM (x: don’t care)
4:MODE3 Reserved
(Low: default)
5:MODE4 Reserved
(Low: default)
(16) D_BT_IF
port
(JP1: 5pin header)
When using other Bluetooth Transceiver or PCM Codec, connect them to this
interface. The integrated Bluetooth module should be disconnected.
