TDA8808T Просмотр технического описания (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
SYMBOL
PARAMETER
VPLLHL
VPLLHH
IPLLH
IPLLH
IDT1
VD
ID
ZD
A11
A12
A21
A22
A31
A32
A41
PLLH output (pin 10)
Output voltage LOW
IPLLH = 400 µA (sink current)
Output voltage HIGH
IPLLH = −50 µA (source current)
Output sink current
Output source current
Threshold total LF current
VDETp2/Vrefp; VDETn2/Vrefn
LF photo diode inputs (pins 22 to
25)
(values given for each input)
DC voltage level
Input current range
Input impedance at 1 MHz
LF gain
Maximum DC gain
for: A1 = I--D----1I--R--+--e--1-I--D---2- ;
ID3 = ID4 = 0
at lD1 = 0 µA; ID2 = 1 µA
at lD1 = 1 µA; ID2 = 0 µA
for: A2 = I--D----3I--R--+--e--2-I--D---4- ;
ID1 = ID2 = 0
at lD3 = 0 µA; ID4 = 1 µA
at lD3 = 1 µA; ID4 = 0 µA
S1 mean value of
A11, A12, A21, A22
Minimum DC gain
for: A3 = I--D----1I--R--+--e--1-I--D---2- ;
ID3 = ID4 = 0
at lD1 = 0 µA; ID2 = 1 µA
at lD1 = 1 µA; ID2 = 0 µA
for: A4 = I--D----3I--R--+--e--2-I--D---4- ;
ID1 = ID2 = 0
at lD3 = 0 µA; ID4 = 1 µA
CONDITIONS MIN.
TYP.
−
VGCLF = 3,5 V
2,4
0,5
−
−
57,5
−
−
1,5
−100
2,0
62,5
−
1,2
0
−
ID = 1 µA
−
10
VGCLF = 3,5 V
VGCLF = 3,5 V
S1−10% S1
S1 or 55 S1
S1−10% S1
S1 or 55 S1
55
64
VGCLF = 0,8 V
S2-1
S2
S2-1
S2
VGCLF = 0,8 V
S2−1
S2
November 1987
9
MAX. UNIT
0,4
V
−
V
−
mA
−50
µA
−
µA
67,5
%
−
V
6
µA
−
kΩ
S1
S1
S1
S1
84
S2+1
S2+1
S2+1
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