MT91L62
A
Lo3.14
- 3.14dB =1.067V
rms
for A-Law, at the Codec. (V
Ref
=0.4 volts and V
Bias
=1.5 volts.)
Advance Information
AC Characteristics
†
for A/D (Transmit) Path
- 0dBm0 = A
Lo3.17
- 3.17dB = 1.027V
rms
for
µ
-Law and 0dBm0 =
Characteristics
1
Analog input equivalent to
overload decision
Absolute half-channel gain
M
±
to Dout
3
Gain tracking vs. input level
ITU-T G.714 Method 2
Signal to total Distortion vs. input
level.
ITU-T G.714 Method 2
Transmit Idle Channel Noise
Gain relative to gain at 1020Hz
<50Hz
60Hz
200Hz
300 - 3000 Hz
3000-3300 Hz
3300 Hz
3400 Hz
4000 Hz
4600 Hz
>4600 Hz
Absolute Delay
Group Delay relative to D
AX
G
AX1
G
TX
5.4
-0.3
-0.6
-1.6
35
29
24
13
-70.5
16
-69
-25
-30
0.0
0.25
0.25
0.25
0.25
-12.5
-25
-25
6.0
6.6
0.3
0.6
1.6
dB
dB
dB
dB
dB
dB
dB
dBrnC0
dBm0p
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
µs
µs
µs
µs
µs
at frequency of minimum
delay
500-600 Hz
600 - 1000 Hz
1000 - 2600 Hz
2600 - 2800 Hz
±100mV
peak signal on
V
DD
µ-law
Sym
A
Li3.17
A
Li3.14
Min
Typ
‡
4.246
4.4
Max
Units
Vp-p
Vp-p
Test Conditions
µ-Law
A-Law
Both at Codec
Transmit filter gain=0dB
setting.
@1020Hz
3 to -40 dBm0
-40 to -50 dBm0
-50 to -55 dBm0
0 to -30 dBm0
-40 dBm0
-45 dBm0
µ-Law
A-Law
2
4
D
QX
5
6
N
CX
N
PX
G
RX
-45
-0.25
-0.9
-0.9
-1.2
-0.2
-0.6
-23
-41
360
750
380
130
750
7
8
D
AX
D
DX
9
Power Supply Rejection
f=1020 Hz
PSSR
30
50
dB
† AC Electrical Characteristics are over recommended temperature range & recommended power supply voltages.
‡ Typical figures are at 25
°
C and are for design aid only: not guaranteed and not subject to production testing.
7-180
MITEL [ MITEL NETWORKS CORPORATION ]
