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TDA8808T 查看數據表(PDF) - Philips Electronics

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TDA8808T Datasheet PDF : 22 Pages
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Philips Semiconductors
Photo diode signal processor for
compact disc players
Product specification
TDA8808T
TDA8808AT
GENERAL DESCRIPTION
The TDA8808 is a bipolar integrated circuit designed for use in compact disc players with a single spot read-out system.
It amplifies the photo-diode signals and processes the error signals for the focus- and radial control network.
Features
Data amplifier with equalizer and AGC
Offset-free pre-amplifier with AGC for the servo signals
Trackloss and drop-out detection
Start-up procedure for focus
Normalizing focus error output signal to minimize radial error interference
Laser supply amplifier and reference source
Both TDA8808T and TDA8808AT versions suitable for car, portable and home applications
Single and dual supply application
Focus in-lock signal; ready signal output (RD).
QUICK REFERENCE DATA
SYMBOL
PARAMETER
VP
Vext
Vext
IQ
IHFin(p-p)
ID
ILO
Tamb
Supply
Supply voltage range
External voltage range
TDA8808T
TDA8808AT
Quiescent supply current
HF input current
(peak-to-peak value)
LF input current
(for each diode input)
Laser supply output current
Operating ambient
temperature range
CONDITIONS
MIN.
TYP. MAX. UNIT
4,5
5,0
5,5
V
Si/RD = 0 V
5,5
5,0
0
V
VP
10
12
V
7,5
10
12,5
mA
fHFin = 100 kHz
3
10
µA
0
6
µA
Si/R7D = HIGH Z 8
4
2
mA
30
+85
°C
PACKAGE OUTLINE
28-lead mini-pack; plastic (SO28; SOT136A); SOT136-1; 1996 August 13.
November 1987
2
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