參數(shù)資料
型號： AK2307LV
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： SPEECH CODEC for Digital Key telephone (5.0V/3.3V)
中文描述： 語音編解碼器的數(shù)字按鍵電話（5.0V/3.3V）
文件頁數(shù)： 10/39頁
文件大?。?/td> 468K
代理商： AK2307LV
ASAHI KASEI [AK2307/LV]
2. PCM Data Interface
AK2307/LV supports 4 PCM data interface modes.
- A/u-Law PCM data mode( Long or Short frame)
This mode is for interface of 64kbps PCM data which are compressed /extended by A -law or u-law. Both Long
frame
and short frame format data are acceptable. The PCM data occupies the first time slot of the PCM data bus which
is specified by the frame sync signal. Please refer to the format diagram.
- 16 bit Linear data Mode
This mode interfaces the 16 bit linear PCM data. PCM CODEC of AK2307/LV operates at 14 bit accuracy. The 2
bits
of the LSB are fixed in the 16 bit data stream.
- AK130 B1 Mode
This mode provides the PCM data Interface to AK130, the TCM transceiver for PBX/KTS system. PCM data format
is 64kbps A-law or u-law data. The timing between data and FS is different from the A/u-Law PCM data mode
written above. In this mode the PCM data are transmitted/received via B1 channel , one of the PCM data
channel of the AK130.
- AK130 B2 Mode
This mode provides the PCM data interface to AK130 B2 channel in as same manner as AK130 B1 Mode.
In every modes, the digital voice data are in and out from DR and DX pin and the bit clock and the 8KHz frame sync
signal will be fed via BCLK and FS, respectively. The order of PCM and linear data is MSB first .
Table 2-A Summary of PCM interface modes
Mode
PCM data
format
A/u-Law PCM data
mode
(N: 1 to 32)
16bit Linear data
mode
Linear
(N: 1 to 16)
AK130 B1
mode
AK130 B2
mode
2-1. Selection of the interface mode
These four interface modes are selectable through the CPU register which specified below.
A/u-Law selection is also selectable from the same CPU register and it is effective in the u/ A-law interface mode and
AK130 B1/B2 modes.
Register Name; Path Control 2
Register Type : Read Write
ADD
D7
D6
D5
D4
D3
1
-
RX
Pad
Tone
Default
0
0
0
0
0
PCM_1
、
0
；
PCM interface mode select
PCM_1
PCM_0
Mode
MS0190-E-05
2005/12
10
BCLK rate
frame
signal
LF/SF
auto select
SF
only
AK130 FS
signal
AK130 FS
signal
Time
slot
1
st
Time slot
A/u-Law
64K x N
16bit
128K x N
first 16 bit after
FS signal
xx
th time slot
of 2.048MHz(B1 channel)
xx
th time slot
of 2.048MHz(B2 channel)
A/u-Law
2.048MHz
A/u-Law
2.048MHz
D2
u/A
law
0
D1
SW10
D0
SW9
Side
PCM_1
PCM_0
0
0
0
0
A/u-Law PCM data mode
0
1
16bit Linear interface mode
1
0
AK130 B1 mode
1
1
AK130 B2 mode
u/A-law ;
PCM compress/Extend format select
A/u-law
Compress/Extend
0
1
u-law
A-law
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AK231-2-R 功能描述:CABLE DB9F-DB9F 2M RoHS:是 類別:電纜組件 >> D-Sub 系列:- 產(chǎn)品目錄繪圖:A7MM, M7PP,M7VV Series 標準包裝:1 系列:- 第一連接器:公形引腳插頭 第二連接器:公形引腳插頭 類型:DB25 位置數(shù):25 長度:6.0'（1.83m） 屏蔽:無屏蔽 顏色:多色，帶狀 使用:跳線 觸點表面涂層:金 觸點涂層厚度:30µin（0.76µm） 產(chǎn)品目錄頁面:28 (CN2011-ZH PDF)
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