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TDA1300T

Photodetector amplifiers and laser supplies

Philips Electronics 

Philips Semiconductors

Photodetector amplifiers and laser

supplies

Preliminary specification

TDA1300T; TDA1300TT

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Reference source VADJ and laser adjustment current IADJ

Vref

reference voltage

RADJ = 48 kΩ

∆T

reference temperature drift

1.15 1.24

1.31

mV

−

40

−

ppm

RSref

IADJ

Zi

M

reference supply rejection

adjustment current

input impedance

multiplying factor (Imon/IADJ)

RADJ = 5.6 kΩ

RADJ = 4.8 kΩ

−

−

1

%

−

−

200

µA

−

1

−

kΩ

−

10

−

−

Notes to the characteristics

1. The maximum input current is defined as the current in which the gain Gd(n) reaches its minimum. Increasing the

supply voltage to VDD = 5 V increases the maximum input current (see also Figs 4 and 5).

2. The gain increases if a larger supply voltage is used (see Fig.6).

3. Transresistance of 70 kΩ and 120 kΩ (typical) is only available in N-sub monitor mode (see Table 1).

4. Transresistance of 140 kΩ and 240 kΩ (typical) is only available in P-sub monitor mode (see Table 1).

5. Output voltage swing will be: VO(RF)(swing) = VO(RF)(max) − VO(RF)(p-p).

6. For single speed the data amplifier gain ratio is defined as gain difference between 1 MHz and 100 kHz, while the

flatness delay is defined up to 1 MHz (see Fig.7). For double speed the data amplifier gain ratio is defined as gain

difference between 2 MHz and 200 kHz, while the flatness delay is defined up to 2 MHz.

1997 Jul 15

9

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