MH88524
AC Electrical Characteristics
‡
Characteristics
1
2
3
4
5
Return Loss at junctorx
(Ref. = 604Ω)
Impedance at Junctor
Transhybrid Lossy
(Junctor - 754Ω)
Transhybrid Loss
z
(Frequency = 1kHz)
Transhybrid Loss
(Frequency = 50kHz)
Input Impedance at RX
Output Impedance at TX
Gain RX to Junctor
Frequency Response Gain
(relative to gain at 1kHz)
Gain junctor to TX
Frequency Response Gain
relative to gain at 1kHz
Signal Output Overload Level
at TX
at Junctor
Total Harmonic Distortion
RX to Junctor
Junctor to TX
RX to Junctor
Junctor to TX
Idle Channel Noise
at TX
at Junctor
Power Supply Rejection Ratio PSRR
at TX and Junctor
40
V
DD
V
EE
40
* Typical figure are at 25°C with nominal
+
5V supplies and are for design aid only.
15
THD
0.4
0.4
1.0
1.0
Nc
2
2
%
%
%
%
AJT
ARJ
Preliminary Information
Sym
Min
46
40
Typ*
Max
Units
dB
dB
Test Conditions
200-3400Hz
200-50kHz
200-3400Hz
200-50kHz
Junctor = 600Ω
Junctor = 900Ω
Junctor = 600Ω
Junctor = 900Ω
604
42
36
18
21
15
18
10k
5
0.99
-0.1
-0.1
-0.1
0.99
-0.1
-0.1
-0.1
6.0
6.0
1.00
0
1.00
0.0
1.01
0.1
0.1
1.0
1.01
0.1
0.1
0.1
Ω
dB
dB
dB
dB
dB
dB
Ω
Ω
V/V
dBV
dB
dB
V/V
dBV
dB
dB
dBm
dBm
Input 0.5V 1kHz
200-3400Hz
200-50kHz
Input 0.5V 1kHz
200-3400Hz
200Hz-50kHz
%THD<5%
Reference: 600Ω
Reference: 754Ω
Input 0.5V 1kHz
200-3400Hz
200-3400Hz
200-50kHz
200-50kHz
Reference: 600Ω
Reference 754Ω
Ripple 0.1V 1kHz
dB
dB
6
7
8
9
10
11
12
13
14
dBrnC
dBrnC
‡ AC Electrical Characteristics are over recommended operating conditions unless otherwise stated.
Both of the 2-4 Wire circuits are tested. TX, RX and Junctor actually refer to TX1, RX1 and JUN1; and TX2, RX2 and JUN2.
All of the above test conditions use 754Ω connected between Junctor and AGND, unless otherwise stated.
All the above test conditions use 200Hz to 3400Hz unless otherwise stated.
Notes:
x
RX is connected to AGND, see Figure 3.
y
See Figure 5.
z
See Figure 4.
2-76
MITEL [ MITEL NETWORKS CORPORATION ]
