MH88612C Ver la hoja de datos (PDF) - Mitel Networks

Número de pieza

componentes Descripción

Fabricante

MH88612C

Subscriber Line Interface Circuit

Mitel Networks 

MH88612C

Preliminary Information

AC Electrical Characteristics

Characteristics

1 Ringing Voltage

Sym

VRING

2 Ringer Equivalence Number

3 Ring Trip Detect time

4 Input AC Impedance 2-wire

(1)

5 Input Impedance at VR

6 Output Impedance at VX

7 Gain 2-wire to VX

Gain relative to Gain @ 1kHz

REN

Zin

8 Gain VR to 2-wire

Min Typ*

40

100

719

100

10

0

-0.5

-0.22

Max

90

25

3

0.1

0.1

Units

Vrms

Hz

Test Conditions

Superimposed on

VBat =-48V

ms

Ω

@1020Hz

kΩ

Ω

dB Input 3 dBm, 1kHz across

Tip and Ring,

dB 300Hz & 3k4Hz

dB 600Hz & 2k4Hz

ZLoad See Note (1).

Input 1.0Vrms, 1kHz @ VR

0

dB with GS @ at logic high

-0.6

-0.4

dB with GS @ at logic low

Gain relative to Gain @ 1kHz

-0.5

with GS @ logic high

0.22

9 2-wire Return Loss over

300-3400Hz

20

30

10 Transhybrid Loss over

300-3400 Hz

THL

20

35

11 Longitudinal to Metallic

Balance over 300-3400 Hz

46

55

12 Total Harmonic Distortion

THD

at VX

0.1

at Tip and Ring

0.1

13 Common Mode Rejection

CMRR 40

50

Ratio

2-wire to VX

14 Idle channel Noise (at VX)

Nc

(at T & R)

15 Power supply rejection ratio PSRR

VDD

20

30

VEE

20

30

VBat

20

30

0.1

dB 300Hz & 3k4Hz

0.1

dB 600Hz & 2k4Hz

ZLoad, See Note (1).

dB Input 0.5 Vrms , across Tip

and Ring, ZLoad = complex

network. See Note (1).

dB

Input 0.5V Vrms, ZLoad=

complex network. See

Note (1).

dB Input 1 Vrms

Input 3dBm, 1 kHz

1.0

% across Tip and Ring,

Input 1.0 Vrms 1kHz at VR

1.0

%

dB Input 1 Vrms, 1KHz

14 dBrnC C- Message

-76 dBrnp psophemetric

12 dBrnC C- Message

-78 dBrnp psophometric

dB 1 VPP ripple, 1kHz on

dB

VDD/VEE//VBat,measure at

dB Vx and across Tip and

Ring

* Typical figure are at 25°C and are for design aid only: not guaranteed and not subject to production testing.

Note (1): Zin = 200 + 560Ω //0.1µF

2-118

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