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參數(shù)資料
| 型號(hào)： | MT91L62 |
| 廠商： | Mitel Networks Corporation |
| 元件分類： | Codec |
| 英文描述： | 3 Volt Single Rail Codec(3V 單軌編解碼器) |
| 中文描述： | 3伏單鐵編解碼器（3V的單軌編解碼器） |
| 文件頁數(shù)： | 9/17頁 |
| 文件大?。?/td> | 79K |
| 代理商： | MT91L62 |
Advance Information
MT91L62
7-181
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.
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.
AC Characteristics
for D/A (Receive) Path
- 0dBm0 = A
Lo3.17
- 3.17dB = 1.027V
rms
for
μ
-Law and 0dBm0 =
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.)
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
Analog output at the Codec full
scale
A
Lo3.17
A
Lo3.14
A
Lo3.17
A
Lo3.14
G
AR1
4.183
4.331
Vp-p
Vp-p
μ
-Law
A-Law
1
Analog output at the CODEC
full scale.
4.183
4.331
V
p-p
V
p-p
dB
μ
-Law
A-Law
2
Absolute half-channel gain.
Din to HSPKR
±
-0.6
0
0.6
@1020Hz
3
Gain tracking vs. input level
ITU-T G.714 Method 2
G
TR
-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
G
QR
35
29
24
dB
dB
dB
0 to -30 dBm0
-40 dBm0
-45 dBm0
5
Receive Idle Channel Noise
N
CR
N
PR
G
RR
11.5
-80
14
-77
dBrnC0
dBm0p
μ
-Law
A-Law
6
Gain relative to gain at 1020Hz
200 Hz
300 - 3000 Hz
3000 - 3300 Hz
3300 Hz
3400 Hz
4000 Hz
4600 Hz
>4600 Hz
-0.25
-0.90
-0.9
-0.9
-0.1
-0.5
-23
-41
0.25
0.25
0.25
0.25
0.25
-12.5
-25
-25
dB
dB
dB
dB
dB
dB
dB
dB
7
Absolute Delay
D
AR
D
DR
240
μ
s
μ
s
μ
s
μ
s
μ
s
at frequency of min. delay
8
Group Delay relative to D
AR
750
380
130
750
500-600 Hz
600 - 1000 Hz
1000 - 2600 Hz
2600 - 2800 Hz
9
Crosstalk
D/A to A/D
A/D to D/A
CT
RT
CT
TR
-90
-90
-74
-80
dB
dB
G.714.16
ITU-T
Electrical Characteristics
for Analog Outputs
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
Output load impedance
E
ZL
E
CL
20k
ohms
across AOUT
±
2
Allowable output capacitive
load
20
pF
each pin:
AOUT+,
AOUT-
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