AK2305 Datasheet, PDF (27/43 Pages) Asahi Kasei Microsystems – Dual PCM CODEC for ISDN TERMINAL ADAPTER

ASAHI KASEI
Address Bit
100
0
1
2
3
4
5
6
7
8
101
0
1
2
3
4
5
6
7
8
110
0
1
2
3
4
5
6
7
8
Name
PDCH0
PDCH1
PDDT0
PDDT1
1stFS
SEL2B
PCMIF0
PCMIF1
-
TMD0
TMD1
MTDX0
MTDX1
ALAWN
-
-
-
-
GTP0
GTP1
GTP2
GTP3
GTA0
GTA1
GTA2
GTA3
-
[AK2305]
Default
0
0
0
0
0
0
0
0
-
0
0
0
0
1
0
0
0
-
0
0
0
0
0
0
0
0
-
Function
CODEC ch0,1 Power down control
0: Power ON 1: Power OFF
DTMF Receiver 0,1 Power down control
0: Power ON 1: Power OFF
First FS select
0: FS0 1: FS1
PCM data channel assignment
0: CH0->B1
PCM interface select
Multiplex/Non Multiplex
Dummy bit
TONEGEN 0,1 tone frequency select
0: 400Hz 1: 1300Hz
PCM output(DX0,1pin) Mute
0: PCM OUT 1: PCM MUTE
A-law/u-law select
0:A-law 1:u-law
Not used
Dummy bit
DTMF Receiver
Guard Time t_GTP setting
DTMF Receiver
Guard Time t_GTA setting
Dummy bit
Refer to
15
9
12
9
21
17
8
20
20
C0029-E-02
27
1999/8