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TDA8809T Datasheet(PDF) 13 Page - NXP Semiconductors

Part # TDA8809T
Description  Radial error signal processor for compact disc players
PDF  16 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA8809T Datasheet(HTML) 13 Page - NXP Semiconductors

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November 1987
13
Philips Semiconductors
Product specification
Radial error signal processor for compact
disc players
TDA8809T
Notes to the characteristics
1. REdig output conditions:
(A) IRe1 > IRe2 + 5 µA; (B) IRe2 > IRe1 + 5 µA.
2. Input voltage HIGH indicates logic 1; Input voltage LOW indicates logic 0; see also Table 1.
3. DIV4 = HIGH; Voffset in adjusted for VREdig = 1,4 V; rad on; lag hold off; VAGC = 3,8 V;
IRe1 = I Re2= −100 µA.
4. Output voltage conditions are:
rad on; lag short-circuit off; lag hold off; VAGC = 3,8 V; IRe1 = IRe2 = −100 µA;
Voffset = Vref − 1,2 V.
5. Value to be fixed.
Table 1
Truth table for DAC output current
Where:
0 = input voltage LOW; 1 = input voltage HIGH.
FUNCTIONS
DAC OUTPUT
LOGICAL INPUTS
INTERNAL SWITCHES
IREout/IDAC
B3
B2
B1
B0
lag
s/c
rad
lag
hold
PUSH
−1/2
0
0
0
0
off
off
on
(kick)
−2
0
001off
off
off
OFF
0
0
0
1
0
off
off
on
OFF
0
0
0
1
1
on
off
off
PULL
1/2
0
1
0
0
off
off
on
(kick)
2
0
1
0
1
off
off
off
CATCH
0
0
1
1
0
off
on
on
PLAY
0
0
1
1
1
off
on
off
PUSH
−1/2
1
0
0
0
on
off
on
PUSH
−3/8
1
0
0
1
on
off
off
PUSH
−1/4
1
0
1
0
on
off
on
PUSH
−1/8
1
0
1
1
on
off
off
PULL
1/2
1
1
0
0
on
off
on
PULL
3/8
1
1
0
1
on
off
off
PULL
1/4
1
1
1
0
on
off
on
PULL
1/8
1
1
1
1
on
off
off



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