Impedance

(

Ω)

[Xmit/Rcv]

Insertion Loss

(dB)

Common Mode Rejection

(dB Min.)

Return Loss

(dB Min.)

1-16

MHz

1-30

MHz

30-100

MHz

100-200

MHz

Crosstalk

(dB Min.)

1-30

MHz

200-300

MHz

32

MHz

36

MHz

1-6

MHz

6-17

MHz

17-25

MHz

Electrical Parameters @ 25° C

Token Ring Transceiver Module

CST7076a

Rev. B1

1/19/99

• Optimized for voltage source driving into 150 ohms •

• Enhanced Common Mode performance over UTP •

• Robust construction allows for solder reflow processes •

• Complies with or exceeds IEEE 802.5 Requirements •

Schematic

Package

EPT7076

44

MHz

-12

-18

-8

-50

-38

Xmit

Rcv Xmit

Rcv Xmit

Rcv Xmit Rcv Xmit Rcv Xmit

Rcv

-35

-30

-.8

Xmit Rcv

-.6

-7

Xmit Rcv

-1

-20

-25

Xmit Rcv

-3

-23

-10

-40

-35

-30

100

Cable Side

Xmit

Rcv

-20

-20

-30

Xmit Rcv

-3

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

150

Chip Side

1.090

.260

.380

---

.010

---

---

.016

.008

---

.130

---

1.110

.280

.400

---

.030

---

---

.022

.012

---

.150

---

27.69

6.60

9.65

---

.254

---

---

.406

.203

---

3.30

---

28.19

7.11

10.16

---

.762

---

---

.559

.305

---

3.81

---

Dimensions

A

B

C

D

E

F

G

H

I

J

K

L

Dim.

Min.

Max.

Nom.

(Inches)

(Millimeters)

Min.

Max.

Nom.

1.100

.270

.390

.950

.020

.050

.135

.020

.010

.075

.140

.100

27.94

6.85

9.91

24.13

.508

1.27

3.43

.508

.254

1.91

3.56

2.54

K

A

E

C

I

PCA

EPT7076

Date Code

G

B

Pin 1 I.D.

J

L

D

H

F

LPF

FIN 1

FINL 2

5 FOUT

4 FOUT

FGND 3

TX1+ 9

TX1- 10

19 TXOUTL

20 TXOUT

TXCT 11

15 RPHB

RX0+ 6

RX0- 7

150

Ω

14 RPHA

18 RXIN

17 RXINL

RXCT 8

12 TPHB

13 TPHA

150

Ω

100

Ω

100

Ω

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

150

Ω

150

Ω

Max.

Max.

Min.

Max.

Min.

Max.

Min.

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