ISDN S - Interface Low Profile SMT

Dual Transformer

CSA3490G

Rev. -

6/9/98

• Meets Pulse Waveform Template of CCITT 1.430 •

with recommended Chip Pair AT&T/Lucent T7250/6/9

and Motorola MC145474/5

• 2000 Vrms Isolation •

• Operating Temp. 0

°C - 70°C •

Schematic

EPA3490G

E L E C T R O N I C S I N C .

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

6799 SCHOENBORN ST.

NORTH HILLS, CA 91343

A

B

C

D

E

F

G

H

I

J

K

L

M

N

P

Q

Dim.

Min.

.950

.590

.300

---

.015

---

.700

.022

---

---

8

°

.045

Max.

.940

.580

.290

.700

.010

.100

.690

.020

.010

.120

---

.035

.030

.100

.085

.750

Nom.

(Inches)

(Millimeters)

23.62

14.48

7.11

---

.127

---

17.28

.457

---

---

0

°

.635

---

Min.

24.14

14.99

7.62

---

.381

---

17.78

.559

---

---

8

°

1.14

Max.

23.88

14.73

7.37

17.78

0.26

2.54

17.53

0.51

0.26

3.05

---

0.89

.762

2.54

2.16

19.05

Nom.

.930

.570

.280

---

.005

---

.680

.018

---

---

0

°

.025

Dimensions

Package

G

K

L

I

Solder Pad

Layout

Q

N

M

P

C

F

H

E

PCA

EPA3490G

D.C.

A

B

J

D

Pin 1

I.D.

OCL

(mH Min.)

Interwinding Capacitance

(pF Max.)

Leakage Inductance

(

µH Max.)

Electrical Parameters @ 25

° C

Turns Ratio

(Pri : Sec

±2%)

DCR

(

Ω ±25%)

Pins 1-4,5-8 (Pri.)

22

A &B (Sec.)

40

A&B

100

Pri

2.4

Sec

5.3

Distributed Capacitance

(pF Max.)

A &B (Pri.)

A & B

1:2.5

110

A & B

1

I dc

(mA Max.)

A

B

1

3

2

4

16

14

15

13

5

7

6

8

12

10

11

9

Sec.

(Chip Side)

Pri.

(Line Side)

Product performance is limited to specified parameters. Data is subject to change without prior notice.