TDA1300T 데이터 시트보기 (PDF) - Philips Electronics

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TDA1300T

Photodetector amplifiers and laser supplies

Philips Electronics 

Philips Semiconductors

Photodetector amplifiers and laser

supplies

Preliminary specification

TDA1300T; TDA1300TT

Transfer functions; see Fig.6

The equalized amplifier including Cext and Rext has the following transfer functions, where ‘RFE’ refers to equalized

output only and ‘RF’ refers to equalized and not equalized outputs.

FOR SINGLE SPEED (SP = LOGIC 1)

I--i-V(--c--eR---n-F-t-r-E-a--l-) = RRF × 1-----+-----1-----⁄---Q--1----×-–----sk----s⁄---ω2----o---s⁄---ω-+---2--s-o--2-s---⁄--ω-----2--o---s- × -1----+-----s-1----⁄--ω-----1 × 1-----+-----s----R----e--1-x---t---×----C-----e---x--t

(1)

FOR DOUBLE SPEED (SP = LOGIC 0)

I--i-V(--c--eR---n-F-t-r-E-a--l-) = RRF × -1----+-----1-----⁄---Q--1----×-–----sk----s⁄---ω2----o---d⁄---ω-+---2--s-o--2-s---⁄---ω----2---o---d × -1----+-----s----R----e--1-x---t---×----C-----e---x--t

(2)

The denominator forms the denominator of a Bessel low-pass filter.

Symbols used in equations (1) and (2) are explained in Table 3.

Table 3 Transresistance

SYMBOL

k

ωos/ω1

Q

ωod = 2 × ωos

RRF

Rext

Cext

DESCRIPTION

internally defined

internally defined

internally defined

internally defined

see Chapter “Characteristics”

external resistor

external capacitor

TYP.

4

1.094

0.691

17.6 × 10−6

−

750

47

UNIT

rad/s

Ω

pF

1997 Jul 15

10

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