P5033

ETALDOC 779/5

Page 4 of 6

June 2005

Improved matching and hybrid

Insertion Loss (Line to RXA): 2.8dB @ 2kHz

Frequency Response : ±0.2dB 30Hz – 10kHz

Return Loss: 20dB 200Hz – 4kHz

Transhybrid Loss: 30dB 50Hz – 10kHz

Insertion Loss (Line to RXA): 2.2dB @ 2kHz

Frequency Response : ±0.5dB 50Hz – 4kHz

Return Loss: 20dB 200Hz – 4kHz

Transhybrid Loss: 18dB 200Hz – 4kHz

600

Insertion Loss: 1.5dB @ 2kHz

Frequency Response : ±0.2dB 20Hz – 20kHz

Return Loss: 16dB 20Hz – 20kHz

600Ω

Fig. 6

LINE

600

10nF

560

1k

1nF

10k

RXA

TXA2

TXA1

μ

22 F

10nF

1nF

LINE

270

(220)

750

(820)

μ

22 F

150nF

(120nF)

750

100nF*

* Note: 100nF capacitor should have a temperature stable dielectric

120

European CTR21/(Australia, etc.)

Fig. 7

RXA

TXA2

TXA1

1k

10k

μ

μ

47 F*

μ

47 F*

600Ω

Fig. 8

600Ω

600Ω

6.8nF

6.8nF

* If no DC block required, one of these capacitors can be removed and

the other set to 22 F, or, if preferred, both capa citors can be eliminated.

Patented