TDA8808T 데이터 시트보기 (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
CONDITIONS
A42
at lD3 = 1 µA; ID4 = 0 µA
S2 mean value of
A31, A32, A41, A42
AC gain for:
G4 = 20 log P1; ID3 = ID4 = 0
G4
at ID1 = 0; ID2(p-p) = 1 µA + 2 µADC note 6
G4
at ID1(p-p) = 1 µA + 2 µADC; ID2 = 0 note 6
G5 = 20 log P2; ID1 = ID2 = 0
G5
at ID3 = 0; ID4(p-p) = 1 µA + 2 µADC note 7
G5
at ID3(p-p) = 1 µA + 2 µADC; ID4 = 0 note 7
Gain control (GCLF)
Input voltage for:
VGCLF
minimum LF gain
VGCLF
maximum LF gain
ZGCLF Input impedance
Threshold total LF current
IDT3
Output current (see Fig.7)
IGCLF
∆VDET<VDETn2 or ∆VDET>VDETp2
IDT < IDT3
MIN.
S2−1
−0,1
−4,5
−4,5
−4,5
−4,5
−
−
−
−
−
IGCLF
IGCLF
VDETn2 < ∆VDET < VDETp2
IDT > IDT3;
note 8
S6−10
−
IRe1
IRe1
IRe2
IRe2
VRe1
VRe2
ZRe1
ZRe2
Iret
VLPF
Re1, Re2 outputs (pin 21, pin 20)
Output current
at ID1 = ID2 = 1 µA; ID3 = ID4 = 0
at ID1 = ID2 = ID3 = ID4 = 0
at lD1 = ID2 = 0; ID3 = ID4 = 1 µA
at lD1 = ID2 = ID3 = ID4 = 0
Output voltage
pin 21
pin 20
Output impedance
pin 21
pin 20
Reference current (Iret)
Iret = IRe1 = IRe2
LPF output (pin 14)
DC voltage level
VGCLF = 3,5 V
note
note 9
110
−
110
−
1
1
−
−
200
VP−2,1
TYP.
S2
0,7
−3
−3
−3
−3
1
2,8
25
1,6
−0,6
IBgc
S6
−0,2
IBgc
128
0
128
0
−
−
1
1
220
VP−1,7
MAX.
S2+1
3
UNIT
−1,5
dB
−1,5
dB
−1,5
dB
−1,5
dB
−
V
−
V
−
MΩ
−
mA
± 10
µA
S6+10 µA
±2
µA
168
mA
−
mA
168
mA
−
mA
VP
V
VP
V
−
MΩ
−
MΩ
240
µA
VP−1,4 V
November 1987
10
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