MH88600
Preliminary Information
AC Electrical Characteristics
†
-
Voltages are with respect to GNDA unless otherwise stated.
Characteristics
1
2
3
4
5
6
Ringer Voltage
Ringer Equivalence No.
Ring Trip Detect Time
Input Impedance at PG4
at VRX
Output Impedance at TX
Gain 2-Wire to TX: Fixed Gain
Programmable Range
Frequency Response Gain
relative to Gain @ 1kHz
300Hz
600Hz and 2400Hz
3000Hz
3400Hz
7
Gain RX to 2-Wire: Fixed Gain
Programmable Range
Frequency Response Gain
relative to Gain @ 1kHz
300Hz
600Hz and 2400Hz
3000Hz
3400Hz
8
9
10
11
12
2-Wire Return Loss
2-Wire Input Impedance
Transhybrid Loss
Longitudinal Balance
Total Harmonic Distortion
at TX
at 2-Wire
Common Mode Reject Ratio
Idle Channel Noise at TX
(0dB gain)
Idle Channel Noise at 2-Wire
(0dB gain)
Power Supply Reject Ratio V
DD
V
EE
V
BAT
Dial Pulse Distortion
(SHK High to Low Time)
THD
0.1
0.1
CMRR
Nc
Np
Nc
Np
PSRR
25
20
30
0.4
1
40
13
-78
11
-80
18
-73
16
-75
dBrnC
dBrnp
dBrnC
dBrnp
dB
dB
dB
ms
Ripple 1Vpp 1kHz
Measure 2-Wire or TX
2-Wire loop at 1.2kΩ
1.0
1.0
%
%
Input 1.0V at 1kHz at 2-Wire
Input 1.0V at 1kHz at PG4
Sym
VR
REN
Min.
Typ
*
Max
105
5
200
Units
V
rms
Test Conditions
See Fig 6
ms
kΩ
Ω
See Fig 5
See Fig 4
Z
RX
Z
TX
A TX
RTX
A
R
TX
-0.75
-0.1
-0.3
-0.75
ARX
RRX
A
R
RX
-0.75
-0.1
-0.3
-0.75
RL
Z
IN
THL
20
52
41
20
18
-4.5
-12
+3.5
-12
112
RRX
3
+4
+4.5
+6
dB
dB
Input 1.0V at 1kHz See Fig 5
See Figure 4
Input 1.0V
600Ω 2-Wire Impedance
0.1
0.1
0.1
0.1
-4
-3.5
+6
dB
dB
dB
dB
dB
dB
Input 1.0V at 1kHz See Fig 5
See Figure 4
Input 1.0V
600Ω 2-Wire Impedance
0.1
0.1
0.1
0.1
26
dB
dB
dB
dB
dB
dB
Input 1.0V, 200Hz to 3.4kHz
Input 1.0V, 3.4kHz to 4kHz
See Table 1
40
dB
dB
dB
Input 1.0V at 300Hz to
3400Hz at PG4
40 - 3400Hz
3400-4000Hz
13
14
CCITT 0.121
15
16
t
d
† AC Electrical Characteristics are over recommended operating unless otherwise stated.
* Typical figures are at 25 C and are for design aid only: not guaranteed and not subject to production testing.
2-90
MITEL [ MITEL NETWORKS CORPORATION ]
