Preliminary Information
AC Electrical Characteristics*
Characteristics
1
Gain VR to 2-Wire
Gain relative to Gain @ 1kHz
2 Gain 2-wire to VX
Gain relative to Gain @ 1kHz
3 Off-Hook Detect Threshold
4 Transhybrid Loss
5 Ringing Signal Voltage
6 Ringing Frequency
7 Ringing Capability
8 Power Supply Rejection Ratio
V
Bat
V
DD
/V
EE
V
DCRI
9 2-wire Return Loss
10 Longitudinal to Metallic Balance
-1 Variant
20
PSRR
30
30
30
35
dB
THL
22
40
17
4
68
-6.2
Sym
Min
‡
-0.2
Typ
†
0
+0.15
-6
+0.15
7.5
30
mA
dB
300-3.4kHz
-5.8
dB
Max
‡
Units
+0.2
dB
MH88622
Test Comments
Input 1.0Vrms 1kHz @ VR,
Zload = Z
in
300-3.4kHz
Input 3dBm 1kHz @ 2W
Zsource = Z
in
300-3.4kHz
Vrms Min 65Vdc differential between
DCRI & V
BAT
Hz
dB
See Table 1
Ripple
0.1 VPP 1kHz
REN 1750Ω impedance @ 20Hz min.
Input 0.5 Vrms 1kHz across Tip
& Ring Zload = Z
in
Input 0.5Vrms
50-300Hz
300-1000Hz
1k-4kHz
200Hz to 1kHz
3kHz
300Hz to 3k4Hz
300Hz to 600Hz
600Hz to 3k4Hz
200Hz to 1kHz
1kHz to 4kHz
1kHz @ 2-wire
-2 Variant
-3 Variant
-5 Variant
Metallic to Longitudinal Balance
-2 Variant only
11 Input AC Impedance (2- wire)
-1 variant (220Ω + 820Ω // 115nF)
-2 variant (600Ω)
-3 variant (370Ω + 620Ω // 310nF)
-5 variant (200Ω + 680Ω // 100nF)
12 Input Impedance @ VR
13 Output Impedance @ VR
14 Total Harmonic Distortion
at VX
at Tip & Ring
15 Common Mode Rejection
Ratio 2-Wire to VX
16 Idle Channel Noise
at VX
at 2-wire
17 On-Hook Transmission Signal
Input Level Gain
18 External Signal Output Level
CMRR
NC
THD
Z
IN
40
55
53
58
53
46
40
46
60
40
600
900
700
823
230
10
0.2
0.2
40
60
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ω
kΩ
Ω
%
%
dB
dBrn
C
2.0
Vrms V
Bat
= -48V
dB T-R load = 10kΩ min.
Vrms V
Bat
= -48V
T-R load = 200Ω
Input 4dBm @2-Wire
Input 1V at VR
Input 0,5V, 1kHz
15
15
6
1.75
2.2
2-177
MITEL [ MITEL NETWORKS CORPORATION ]
