參數(shù)資料
型號: 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): 32/39頁
文件大小: 468K
代理商: AK2307
ASAHI KASEI [AK2307/LV]
Noise
Parameter
Conditions
Idle Channel Noise
1)
A
!
D
HANDT2,3 to DX
A-law, Psophometric
MIC2 to DX
u-law, C-message
Idle Channel Noise
2)
D
!
A
DR to DAOUT
u-law, C-message
Idle Channel Noise
2)
D
!
A
DR to HANDR1
Note 1) Analog Input = Analog Ground. The gain of Handset MIC and MIC input is assumed as +25dB.
SCLK is not supplied. The specification of MIC to DX pass is guaranteed by the design.
Note 2) Digital Input(DR) = +0 Code
Interchannel Crosstalk
Parameter
Conditions
Transmit to Receive
HANDT4 to DAOUT
MIC3 to DAOUT
Receive to Transmit
0dBm0 code@DR, HANDT4 = 0 Vrms
RX voice path Volume
Parameter
Volume
Conditions
1020Hz 0dBm0 input at DR
Relative to: 0dB
1020Hz 0dBm0 input at DR
Relative to: 0dB
VOL5
0 to –22dB
Relative to: 0dB
VOL5
-22 to
–30dB
MS0190-E-05
2005/12
32
Min
-
Typ
8
Max
16
Units
dBrnC0
u-law, C-message
-
-
-
-82
-74
dBm0p
dBrnC0
dBm0p
9
2
A-law, Psophometric
-88
-81
-
-
3
16
-74
dBrnC0
dBm0p
A-law, Psophometric
-87
Min
-
Typ
-70
Max
-
Units
dB
0dBm0@HANDT4, Idle PCM code@DR
-
-70
-
dB
Min
typ
max
Unit
VOL2
-1.0
0
+1.0
*)
dB
VOL3
-1.0
0
+1.0
*)
dB
1020Hz 0dBm0 input at DR
-1.0
0
+1.0
dB
Step margin
1020Hz 0dBm0 input at DR
Relative to: 0dB
-1.5
0
+1.5
*)
dB
*)Monotonus increase/decrease is guaranteed
TX voice path Volume
Parameter
Step margin
Volume
Conditions
Min
typ
max
Unit
VOL1
1020Hz 0dBm0 input at DR
Relative to: 0dB
-1.0
0
+1.0
*)
dB
*)Monotonus increase/decrease is guaranteed
Tone Volume
Parameter
Step margin
Volume
Conditions
Min
typ
max
Unit
0 to –24dB
-1.0
0
+1.0
dB
VOL4
Output; HANDR1
1600Hz tone , Ref level;VOL4=0dB -27 to –45dB -2.0
0
+2.0
*)
dB
Gain error
L-ATT
L-ATT=-2.5dB
-1.0
0
+1.0 dB
*)Monotonus increase/decrease is guaranteed
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