AK2308LV_05 Datasheet, PDF (26/31 Pages) Asahi Kasei Microsystems – SPEECH CODEC for Digital Key telephone

ASAHI KASEI
RX Amp for Speaker output
Parameter
Conditions
MIN
SINAD
SPI to
1.0Vp-p@1020Hz input
40
Gain error
SPOP/SPOP
(0 to 30kHz)
-1.5
Gain error
TONEI to
1.0Vp-p@1020Hz input
-1.5
SPOP/SPON
(0 to 30kHz)
Signal attenuation SPI to
2.0Vp-p@1020Hz input
60
of speaker mute
SPOP/SPON
SW3: 0 to 1
TONEI to
1.0Vp-p@1020Hz input
60
SPOP/SPON
SW5:0 to 1, SW7: 0 to 1
RX Amp
SINAD
Gain error
gain
Parameter
RAI to RAO
Conditions
MIN
0.564Vp-p@1020Hz input, 40
+11dB setting (0 to 30kHz)
-1.5
Invert amplifier
5
TX Amp for Handset / MIC Amp
Parameter
SINAD
HANDT2 to
Gain error
HANDT1,
gain
MIC2 to MIC1
Conditions
MIN
0.023Vp-p@1020Hz input, 40
+25dB setting (0 to 30kHz)
-1.5
Invert amplifier
0
TX path switching summing amplifier characteristics
Parameter
Conditions
MIN
Signal attenuation HANDT3 to DX 1020Hz@0dBm0 input
60
of path switching
SW1: 0 to 1
MIC3 to DX
1020Hz@0dBm0 input
60
SW2: 0 to 1
Input impedance
Parameter
Input impedance
HANDT3
MIC3
RAI
SPI
HANDI
TONEI
Conditions
MIN
7
7
1
52
70
70
[AK2308LV]
TYP MAX Unit
-
dB
0
+1.5
0
+1.5
-
-
-
-
TYP MAX Unit
-
dB
0
+1.5
0
11
TYP MAX Unit
-
dB
0
+1.5
0
25
TYP MAX Unit
-
-
dB
-
-
TYP MAX Unit
10
15
kΩ
10
15
kΩ
-
-
MΩ
75
113 kΩ
100 150 kΩ
100 150 kΩ
MS0227-E-01
26
2005/12