MH88500 Ver la hoja de datos (PDF) - Mitel Networks
Número de pieza
componentes Descripción
Fabricante
MH88500 Datasheet PDF : 10 Pages
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MH88500
Preliminary Information
Absolute Maximum Ratings†
Parameter
Symbol
Min
Max
Units
1 Voltage Supplies - VRef to GND
VA1, VA2
VB
-18
+18
VC1, VC2
-35
2 Clamp Diode Breakdown Voltage-VRef to RGND
VCD
+15
3 Operating Temperature
TAMB
0
+70
4 Storage Temperature
TSTG
-40
+100
5 Power Dissipation
PD
1.2
† Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.
V
V
V
V
°C
°C
Watt
AC Electrical Characteristics†
Voltages are with respect to ground (VSS), TA = 25°C, unless otherwise stated.
Test conditions unless noted, VA1=VA2=+7V, VB=8V, VC2=-24V(+5%).
Characteristics
Sym Min
Typ‡
Max
Units
Test Conditions
1 Junctor to differential output (tip-
ring) gain.
AJL
2.18 2.25 2.32 V/V 1kHz, 400mVRMS
7
dB source on pin 16.
Note 2
2 Differential Input (tip-ring) to junctor
gain
ALJ 0.303 0.321 0.321 V/V 1kHz, 1VRMS
dB Source on pins 1&3.
Note 1,2
3 On/Off Hook Detection
Threshold
Loop Resist RThresh 4.0
5.4
6.0
kΩ Note 1.
Loop Current IThresh 3.6
4.0
5.3
mA Note 1
4 Trans Hybrid Loss
55
dB Notes 1,2. See
Figure 2
5 Passband Linearity
+1
dB Notes 1,2
6 Power Supply Rejection Ratio
PSRR
40
(VC to Junctor)
dB Notes 1,2
7 Common Mode Rejection Ratio
CMRR
40
(Tip and Ring to Junctor)
dB Notes 1,2
8 Low Frequency Cutoff (3dB)
Junctor to Line FLLJ
53
Line to Junctor FLJL
20
Hz Notes 1,2
Hz Notes 1,2
9 High Frequency Cutoff (3dB)
Line to Junctor FHLJ
800
kHz Notes 1,2
Junctor to Line FHJL
500
kHz Notes 1,2
10 Longitudinal Balance
65
dB Note 1
11 Tip (or Ring) to ground AC input
ZI
300
Ω
impedance
12 Junctor output impedance
ZOJ
604
Ω
† Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.
‡ Typical figures are at 25°C with nominal+ 5V supplies and are for design aid only: not guaranteed and not subject to production testing.
Note 1: 754Ω connected between JUNCTOR (pin 16) and OV.
Note 2: 604Ω connected between TIP (pin 1) and RING (pin 3).
2-36
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