MH88625 データシートの表示（PDF） - Mitel Networks

部品番号

コンポーネント説明

メーカー

MH88625

DID/OPS Subscriber line interface circuit (SLIC) for on/off premise PBX line cards, DID line cards and central office cards.

Mitel Networks 

Preliminary Information

MH88625

AC Electrical Characteristics‡

Characteristics

1 TX Gain

2 RX Gain

3 Ringing Capability

4 On-Hook Transmission

Signal Input Level

Gain

5 External Signal Output Level

Sym

6 SHK Rise Time

tR

Fall time

tF

7 2-Wire Termination

Impedance

8 Off-Hook Detect Threshold

9 2-Wire Return Loss

10 Longitudinal Balance

Longitundinal to Metallic

Metallic to Longitudinal

11 Longitudinal Current

Capability

12 Idle channel Noise

NCR

Rx to T-R NCX

T-R to Tx

13 Transhybrid Loss

THL

14 Unbalanced Detect Threshold IUB

15 Analog Signal Overload Level

at Tip and Ring

16 Ringing Signal Voltage

Min Typ* Max Units

Test Conditions

0

dB externally adjustable

0

dB externally adjustable

5

REN

2.0

6

1.75

2.25

1

1

600/

900

10

20

20

20

Vrms

dB

VBat=-48V

T-R load = 10kΩ min.

Vrms

VBat= -48V, T-R load=

200Ω LCA=0V, Zo-600Ω,

Gain=0dB

ms Dial Pulse Detection

ms

Ω

Selectable

mA

dB 300 to 500Hz

dB 500 to 2500Hz

dB 2500 to 3400Hz

58

dB 200-1000Hz

53

dB 3400Hz

40

mA 20mA per lead

8

12

22

40

10

dBrnC

dBrnC

dB

mA

200-3400Hz

4

dBm T-R=600Ω, VBat=-48V

90

Vrms

17 Ringing Frequency

17

33

Hz

18 Ring Trip Delay

100

ms

19 Absolute Gain, Variation

+0.1

dB 0dB at T-R, 1kHz

20 Relative Gain, reference to

1kHz

+0.05

dB 300-3400Hz

21 Power supply Rejection Ratio PSRR

dB 1kHz, 100mVpp

VBat

24

VDD

24

VEE

24

‡ AC Electrical Characteristics are over recommended operating conditions unless otherwise stated.

* Typical figure are at 25°C with nominal +5V supplies and are for design aid only.

Notes: Impedance set by external network of 600Ω or 900Ω default.

External network for test purposes consists of 2200Ω + 8200Ω // 11.5nF between pins Z1 and Z2, the equivalent Zin has 1/10th

the impedance and is equivalent o 220Ω+820Ω // 115nF.

Test condition uses a Zin value of 600Ω, 900Ω and the above external network.

Test conditions use a transmit and receive gain set to 0dB default and a Zin value of 600Ω unless otherwise stated.

“Ref” indicates reference impedance which is equivalent to the termination impedance.

“Net” indicates network balance impedance.

Refer to Table 1, 2 for TX, RX gain adjustment.

2-187

Share Link: