MH88435-P 查看數據表（PDF） - Mitel Networks

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产品描述 (功能)

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MH88435-P

Data Access Arrangement

Mitel Networks 

Preliminary Information

MH88435-P

= Ground (Earth)

11

13

15

3 LOOP

VR+

4 VR-

5 VX

RS

LCD

TIP 28

NB1 1

MH88435

21 SC

NB2 2

22

SC

360K 24 VLOOP2

RING 27

25 VLOOP1

VBIAS 10

LC RV AGND VCC ZA

1K

6 16 8 9 7

5V

4.7K

15K

V2

10uF

-V

10H 500Ω

I=20mA 100uF

+

V1

100uF

+

10H 500Ω

5V

Long. to Met. Balance = 20 * Log (V1 / Vs)

CMR = 20 * Log (VX / Vs)

CMOL = V2

Figure 10 - Test Circuit 5

300Ω

300Ω

Vs = 0.5V

-V

= Ground (Earth)

10H 500Ω

11

13

15

3

LOOP

VR+

RS

4 VR-

LCD

TIP 28

NB1 1

I=20mA

100uF

+

5 VX

MH88435

15K

21 SC

NB2 2

300Ω

Vs

22

SC

360K 24 VLOOP2

RING 27

300Ω 510Ω V1

100uF

+

10H 500Ω

25 VLOOP1

VBIAS 10

LC RV AGND VCC ZA

10uF

1K

6 16 8 9 7

5V

4.7K

5V

Met. to Long. Balance = 20 * Log (V1 / Vs)

Figure 11 - Test Circuit 6

2-51

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