TQ8105P 查看數據表（PDF） - TriQuint Semiconductor

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TQ8105P

SONET/SDH Transceivers

TriQuint Semiconductor 

TQ8105/TQ8106

PRELIMINARY DATA SHEET

Table 2A. TQ8105/TQ8106 Recommended Transmit Loop Filter Values (Preliminary)

Reference

Frequency

(MHz)

19.44

38.88

51.84

77.76

155.52*

Divide

Ratio

32

16

12

8

4

Note: *Internal divide by two on Reference

Resistor

Value R1

(ohms)

1200

620

470

300

300

Capacitor

Value C1

(µF)

0.082

0.15

0.22

0.33

0.33

Capacitor

Value C2

(pF)

82

150

220

330

330

Table 2B. TQ8106 Recommended CDR Loop Filter Values

(Preliminary)

Incoming

Resistor Capacitor Capacitor

AVDD

CDRAVDD

NRZ Data Rate Value R2 Value C3

Value C4

C1

C3

(Mbs)

(ohms)

(µF)

(pF)

155.52

470

1.0

39

C2

R1

C4

R2

622.08

680

4.7

39

FP1

FP2

CDR FP 1

CDR FP 2

Figure 5. Loopback Modes

Normal

RXD

RXCK

DXD

RXBC

TXD

MXD

TXCK

RXD

RXCK

TXD

TXCK

Split

DXD

RXBC

MXD

Equipment

RXD

RXCK

DXD

RXBC

TXD

MXD

TXCK

Facility

RXD

DXD

RXCK

TXD

MXD

TXCK

For additional information and latest specifications, see our website: www.triquint.com

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