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參數(shù)資料
| 型號： | MT9094 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Digital Telephone (DPhone-II)(數(shù)字電話) |
| 中文描述： | 數(shù)字電話（DPhone -Ⅱ）（數(shù)字電話） |
| 文件頁數(shù)： | 28/34頁 |
| 文件大小： | 234K |
| 代理商： | MT9094 |
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MT9094
7-72
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: RxA/u, refer to General Control Register, address 0Fh.
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.
AC Characteristics
for D/A (Receive) Path
- 0dBm0 = 1.421V
rms
for
μ
-Law and 1.477V
rms
for A-Law, at the CODEC.
(V
Ref
= 0.5 volts and V
Bias
= 2.5 volts). All parameters pertain exclusively to the Filter/CODEC except absolute gain and receive idle
channel noise.
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
Analog output at the CODEC full
scale
Absolute half-channel gain.
Receive filter gain = 0dB setting
A
Lo3.17
A
Lo3.14
G
AR1
G
AR2
G
AR3
5.704
5.906
0.2
-12.3
-9.7
Vp-p
Vp-p
dB
dB
dB
μ
-Law
A-Law
PCM to SPKR
±
PCM to HSPKR
±
, RxA/u=0*
PCM to HSPKR
±
, RxA/u=1*
1020Hz
PCM to SPKR
±
PCM to HSPKR
±
, RxA/u=0*
PCM to HSPKR
±
, RxA/u=1*
from nominal
1020Hz
3 to -40 dBm0
-40 to -50 dBm0
-50 to -55 dBm0
0 to -30dBm0
-40 dBm0
-45 dBm0
μ
-Law
A-Law
2
-0.6
-12.9
-10.3
0.95
-11.8
-9.1
All other receive filter settings
(-1 to -7dB) are in addition to
0dB setting
G
AR1
G
AR2
G
AR3
-0.15
-0.15
-0.15
+0.15
+0.15
+0.15
dB
dB
dB
3
Gain tracking vs. input level
CCITT G.714 Method 2
G
TR
-0.3
-0.6
-1.6
35
29
24
0.3
0.6
1.6
dB
dB
dB
dB
dB
dB
4
Signal to total distortion vs. input
level
CCITT G.714 Method 2
Receive Idle Channel Noise
G
QR
5
N
CR
N
PR
G
RR
15.5
-75
dBrnC0
dBrn0p
6
Gain relative to gain at 1020Hz
200 Hz
300-3000 Hz
3000-3400 Hz
4000 Hz
>4600 Hz
Absolute Delay
Group Delay relative to D
AR
-0.25
-0.90
0.25
0.25
0.25
-12.5
-25
dB
dB
dB
dB
dB
μ
s
μ
s
μ
s
μ
s
μ
s
dB
dB
7
8
D
AR
D
DR
240
750
380
130
750
at frequency of min. delay
500-600 Hz
600-1000 Hz
1000-2600 Hz
2600 - 2800 Hz
G.714.16
9
Crosstalk
D/A to A/D
A/D to D/A
CT
RT
CT
TR
-74
-80
AC Electrical Characteristics
for Side-tone Path
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
Absolute path gain
Gain adjust = 0dB
G
AS1
G
AS2
-17.2
-13.1
-16.7
-12.6
16.2
-12.1
dB
dB
SIDEA/u, MICA/u, RxA/u all 0
SIDEA/u, MICA/u, RxA/u all 1
M
±
inputs to HSPKR
±
outputs
1000Hz
All other settings
(-9.96 to +9.96dB)
G
AS
G
AS
-0.3
-0.3
+0.3
+0.3
dB
dB
SIDEA/u=0
SIDEA/u=1
from nominal
relative measurements w.r.t.
G
AS1
& G
AS2
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