5

®

AFE1103

TYPICAL PERFORMANCE CURVES

At Output of Pulse Transformer

Typical at 25

°C, AV

CURVE 2. Transmitted Pulse Template and Actual Performance as Measured at the Transformer Output.

CURVE 1. Upper Bound of Power Spectral Density Measured at the Transformer Output.

0.4T

B = 1.07

C = 1.00

D = 0.93

0.4T

–0.6T

–1.2T

A = 0.01

E = 0.03

G = –0.16

A

B

C

D

E

F

G

H

0.01

1.07

1.00

0.93

0.03

–0.01

–0.16

–0.05

0.0264

2.8248

2.6400

2.4552

0.0792

–0.0264

–0.4224

–0.1320

–0.0264

–2.8248

–2.6400

–2.4552

–0.0792

0.0264

0.4224

0.1320

0.0088

0.9416

0.8800

0.8184

0.0264

–0.0088

–0.1408

–0.0440

–0.0088

–0.9416

–0.8800

–0.8184

–0.0264

0.0088

0.1408

0.0440

NORMALIZED

LEVEL

QUATERNARY SYMBOLS

+3

–3

+1

–1

14T

H = –0.05

50T

F = –0.01

A = 0.01

F = –0.01

0.5T

1.25T

CURVE 3. Input Impedance of rxLINE and rxHYB.

1K

–20

–40

–60

–80

–100

–120

10K

100K

POWER SPECTRAL DENSITY LIMIT

Frequency (Hz)

1M

10M

–38dBm/Hz for T1

–40dBm/Hz for E1

196kHz

292kHz

–80dB/decade

T1

–120dBm/Hz

for E1

–118dBm/Hz

E1

100

200

150

100

50

0

300

500

INPUT IMPEDANCE vs BIT RATE

Bit Rate (kbps)

700

900

1300

1100

E1

T1

T1 = 784kbps, 45k

Ω

E1 = 1168kbps, 30k

Ω