參數(shù)資料
型號(hào): AK2307
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): 2/39頁
文件大?。?/td> 468K
代理商: AK2307
ASAHI KASEI [AK2307/LV]
MS0190-E-05
2005/12
2
BLOCK DIAGRAM
Amp2
SW1
SW2
upto +25dB
16 steps
by 1dB
+7 to -8dB
Amp3
VOL1
TX Digital
Attenuator
D/A
RX Digital
Volume
PAD
0/-9dB
+
16 Steps
by 3dB
-12 to -57dB
Side Tone
Digital ATT
24 steps
by 1dB
0 to -23dB
VOL2
SW3
Amp5
24 steps
by 1dB
0 to -23dB
VOL3
SW8
SW9
16 steps
by 3dB
0 to -45dB
VOL4
Tone Gen H
(DTMF-H)
SPO
HANDR
MIC1
MIC2
External Mic
I/F
Handset Mic
I/F
Handset Receiver
output
Speaker output
PCM
Interface
8 steps
by 3dB
+6 to -21dB
8 steps
by 3dB
0 to -21dB
SCLK
DATA
CSN
16bit Linear
or
A/u-law
PLL
Clock generator
Amp1
HANDT1
HANDT2
HANDT3
HANDT4
MIC3
SW7
0dB/+3dB
Amp10
0dB/+3dB
Voltage Reference
VREF
D
D
A
A
E
DX
DR
FS
BCLK
Linear
A/u
PLLCAP
SW4
SW5
SW6
16 steps
by 2dB
0 to -30dB
VOL5
Headset Receiver
output
HEADO
DAOUT
RAIN
0dB/+3dB
+
CPU Interface
SW10
TAGND
RAGND
- 1
- 1
+14dB
+14dB
+0dB
Linear
A/u
A/D
AGC
(Back ground
Noise ATT)
L_ATT
-2.5dB
Tone Gen L
(DMTF-L)
150ohm Driver
150ohm Driver
10K ohm Driver
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