MH88422 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

MH88422

Data Access Arrangement

Mitel Networks 

Preliminary Information

MH88422

AC Electrical Characteristics† - MH88422-3

Characteristics

Sym Min

Typ‡ Max

Units

Test Conditions

1 Return Loss at 2-Wire

(370Ω + 620Ω // 310nF)

RL

16 20

Test circuit as Fig 7

dB 200-4000Hz

2 Longitudinal to Metallic Balance

50 60

Test circuit as Fig 8

dB 300-3400Hz

3 Idle Channel Noise

Nc

at 2-Wire

at VX

-80 -70 dBmp

-80 -68 dBmp

4 Transmit Gain (2-Wire to Vx)

-1.4 -0.4 0.9

Test circuit as Fig 5

dB Input 0.5V @ 1kHz

Off-Hook

5 Frequency Gain

-1.6 -1.3 0.4

dB 300Hz

(relative to gain @ 1kHz)

-2.1 -0.5 0.9

dB 3400Hz

†AC Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.

‡Typical figures are at 25°C with nominal +5V and are for design aid only.

Note 1: All of the above test conditions use a test source impedance which matches the device’s impedance.

AC Electrical Characteristics† - MH88422BD-1

Characteristics

Sym Min Typ‡ Max

Units

Test Conditions

1 Return Loss at 2-Wire

RL

(220Ω + 820Ω // 115nF)

2 Longitudinal to Metallic Balance

3 Idle Channel Noise

Nc

at 2-Wire

at VX

4 Transmit Gain (2-Wire to Vx)

5 Frequency Gain

(relative to gain @ 1kHz)

16 22

30 65

40 60

46 60

-84 -70

-75 -70

-1.4 -0.4 0.9

-1.6 -1.3 -0.4

-1.2 -0.5 0

Test circuit as Fig 7

dB 300-3400Hz

Ref ZV5 Sec 2.5.2 and

2.8.3

Test circuit as Fig 8

dB 50-300Hz

dB 300-600Hz

dB 600-4000Hz

Ref ZV5 Sec 2.8.2

dBmp

dBmp

dB

dB

dB

Test circuit as Fig 5

Input 0.5V @ 1kHz

Off-Hook

300Hz

3400Hz

†AC Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.

‡Typical figures are at 25°C with nominal +5V and are for design aid only.

Note 1: All of the above test conditions use a test source impedance which matches the device’s impedance.

2-21

Share Link: