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參數(shù)資料
| 型號： | MT91L60 |
| 廠商： | Mitel Networks Corporation |
| 元件分類： | Codec |
| 英文描述： | ISO2-CMOS 3 Volt Multi-Featured Codec (MFC) |
| 中文描述： | ISO2 - CMOS三伏多功能的編解碼器（MFC）中 |
| 文件頁數(shù)： | 18/20頁 |
| 文件大小： | 166K |
| 代理商： | MT91L60 |
MT91L60
Advance Information
7-124
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.
* Note: TxINC, refer to Control Register 1, address 00h.
AC Characteristics
for A/D (Transmit) Path
-
0dBm0 = 1.026V
rms
for μ-Law and
1.066V
rms
for
A-Law, at the Codec. (V
Bias
=1.5 volts.)
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
Analog input equivalent to
overload decision
A
Li3.17
A
Li3.14
4.2
4.4
4.2
4.6
Vp-p
Vp-p
μ
-Law
A-Law
Both at Codec
2
Absolute half-channel gain
M ± to Dout
G
AX1
G
AX2
6.0
15.3
dB
dB
Transmit filter gain=0dB
setting.
TxINC = 0*
TxINC = 1*
@1020 Hz
Tolerance at all other transmit
filter settings
(1 to 7dB)
±0.2
dB
3
Gain tracking vs. input level
ITU-T G.714 Method 2
G
TX
-0.3
-0.6
-1.6
0.3
0.6
1.6
dB
dB
dB
3 to -40 dBm0
-40 to -50 dBm0
-50 to -55 dBm0
4
Signal to total Distortion vs. input
level.
ITU-T G.714 Method 2
D
QX
35
29
24
dB
dB
dB
0 to -30 dBm0
-40 dBm0
-45 dBm0
5
Transmit Idle Channel Noise
N
CX
N
PX
G
RX
15
-70
16.5
-69
dBrnC0
dBm0p
μ
-Law
A-Law
6
Gain relative to gain at 1020Hz
<50Hz
60Hz
200Hz
300 - 3000 Hz
3000 - 3400 Hz
4000 Hz
>4600 Hz
-0.25
-0.9
-25
-30
0.0
0.25
0.25
-12.5
-25
dB
dB
dB
dB
dB
dB
dB
7
Absolute Delay
D
AX
360
μs
at frequency of minimum
delay
8
Group Delay relative to D
AX
D
DX
750
380
130
750
μs
μs
μs
μs
500-600 Hz
600 - 1000 Hz
1000 - 2600 Hz
2600 - 2800 Hz
9
Power Supply Rejection
f=1020 Hz
f=0.3 to 3 kHz
f=3 to 4 kHz
f=4 to 50 kHz
PSSR
PSSR1
PSSR2
PSSR3
37
40
35
40
dB
dB
dB
dB
±100mV peak signal on
V
DD
μ
-law
PSSR1-3 not production
tested
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