參數(shù)資料
型號: MH88612C
廠商: Mitel Networks Corporation
英文描述: Subscriber Line Interface Circuit Preliminary Information
中文描述: 用戶線接口電路的初步信息
文件頁數(shù): 6/8頁
文件大小: 66K
代理商: MH88612C
2-118
MH88612C
Preliminary Information
AC Electrical Characteristics
Characteristics
* Typical figure are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
Note (1): Zin = 200 + 560
//0.1
μ
F
Sym
Min
Typ*
Max
Units
Test Conditions
1
Ringing Voltage
V
RING
40
90
25
3
V
rms
Hz
Superimposed on
V
Bat
=-48V
2
3
4
Ringer Equivalence Number
Ring Trip Detect time
Input AC Impedance 2-wire
(1)
Input Impedance at V
R
Output Impedance at V
X
Gain 2-wire to V
X
REN
100
719
ms
Z
in
@1020Hz
5
6
7
100
10
0
k
dB
Gain relative to Gain @ 1kHz
-0.5
-0.22
0.1
0.1
dB
dB
Input 3 dBm, 1kHz across
Tip and Ring,
300Hz & 3k4Hz
600Hz & 2k4Hz
Z
Load
See Note (1).
Input 1.0V
rms
, 1kHz @ V
R
8
Gain V
R
to 2-wire
Gain relative to Gain @ 1kHz
with GS @ logic high
-0.6
-0.5
0.22
0
-0.4
0.1
0.1
dB
dB
dB
dB
with GS @ at logic high
with GS @ at logic low
300Hz & 3k4Hz
600Hz & 2k4Hz
Z
Load
, See Note (1).
Input 0.5 V
rms ,
across Tip
and Ring, Z
Load
= complex
network. See Note (1).
Input 0.5V V
rms,
Z
Load
=
complex network. See
Note (1).
Input 1 V
rms
9
2-wire Return Loss over
300-3400Hz
20
30
dB
10
Transhybrid Loss over
300-3400 Hz
THL
20
35
dB
11
Longitudinal to Metallic
Balance over 300-3400 Hz
Total Harmonic Distortion
46
55
dB
12
at V
X
at Tip and Ring
THD
0.1
0.1
50
1.0
1.0
%
%
dB
Input 3dBm, 1 kHz
across Tip and Ring,
Input 1.0 V
rms
1kHz at V
R
13
Common Mode Rejection
Ratio
2-wire to V
X
Idle channel Noise
CMRR
40
Input 1 V
rms
, 1KHz
14
(at V
X
)
(at T & R)
Nc
14
-76
12
-78
dBrnC
dBrnp
dBrnC
dBrnp
C- Message
psophemetric
C- Message
psophometric
15
Power supply rejection ratio
V
DD
V
EE
V
Bat
PSRR
20
20
20
30
30
30
dB
dB
dB
1 V
PP
ripple, 1kHz on
V
DD/
V
EE/
/V
Bat
,measure at
Vx and across Tip and
Ring
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