MT91610 데이터 시트보기 (PDF) - Mitel Networks

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MT91610

Analog Ringing SLIC

Mitel Networks 

MT91610

Preliminary Information

VDD 1

TD 2

TF1 3

NC 4

TIP 5

VREF 6

LR 7

RING 8

RF1 9

NC 10

RD 11

CP1 12

CP2 13

CP3 14

CP4 15

ESE 16

PD 17

DCRI 18

36 VEE

35 RV

34 CP7

33 SHK

32 VBAT

31 UD

30 RC

29 CP6

28 VR

27 GTX1

26 ESI

25 VX

24 GTX0

23 Z3

22 Z2

21 CP5

20 Z1

19 AGND

Pin Description

Pin # Name

1

VDD

2

TD

3

TF1

4

NC

5

Tip

6

VREF

7

LR

8

Ring

9

RF1

10

NC

11

RD

12

CP1

13

CP2

14

CP3

15

CP4

16

ESE

17

PD

18

DCRI

19

AGND

Figure 2 - Pin Connections

Description

Positive supply rail, +5V.

Tip Drive (Output). Controls the Tip transistor. Connects 150nF cap to GND.

Tip Feed 1 (Output). Connects to the Tip transistor and to TIP via the Tip feed resistor.

No Connection Left open

Tip. Connects to the TIP lead of the telephone line.

Reference Voltage (Input). Used to set the subscribers loop constant current. A 0.1uF

cap should be connected between this pin and GND for noise decoupling.

Line Reverse (Input). This pin should be set to 0V for NORMAL polarity. Setting the pin

to +5V reverses the polarity of Tip and Ring

Ring. Connects to the RING lead of the telephone line

Ring Feed 1 (Output). Connects to the RING lead via the Ring feed resistor

No Connection Left open

Ring Drive (Output). Controls the Ring transistor. Connects 150nF cap to GND.

CP1. A 220nF capacitor should be connected between this pin and pin 13

CP2. A 330nF capacitor for loop stability is connected between this pin and pin 14

CP3. A 330nF capacitor for loop stability is connected between this pin and pin 13

CP4. A 100nF cap should be connected between this pin and GND

External Signal Enable (Input). A logic ’1’ enable the MPI (Meter Pulse Input) to Tip /

Ring. This pin should be set to logic ’0’ when not used.

Power Down (Input). A logic ’1’ power down the device. This pin should be set to logic ’0’

for normal operation.

DC voltage for Ringing Input (Input) The positive voltage supply for balance ringing.

The input DC voltage range is from 0V to +72V.

Analog Ground. 4 Wire Ground, normally connected to system ground.

2

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