TDA8808T datasheet(8/22 Pages) PHILIPS

No de pièce	TDA8808T

Description	Photo diode signal processor for compact disc players

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Fabricant	PHILIPS [NXP Semiconductors]

Site Internet	http://www.nxp.com

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8 / 22 page

November 1987

8

Philips Semiconductors

Product speciﬁcation

Photo diode signal processor for compact

disc players

TDA8808T

TDA8808AT

Group delay

τ300

at fHFin = 300 kHz + ∆f

note 3

−

290

−

ns

Flatness

∆τ

between 0,1 and 1 MHz

note 3

*

9

*

ns

HF output (HFout)

Output voltage

VHFout

at IHFin = 0

VGCHF = 4 V

1,5

2,4

3,3

V

Output voltage

(peak-to-peak value)

VO1(p-p)

at IHFin(p-p) = 7 µA

note 4

1

1,20

−

V

VO(p-p)

at IHFin(p-p) = 4 to 10 µA

note 5

−20%

M1

+20%

V

Z

HFout

Output impedance

−

60

−Ω

HF detector input (DET)

see Fig.5

VDET0

DC voltage level

IDET = 0

−

2,2

−

V

Positive reference voltage

Vrefp

VDET to VDET0

−10%

540

+10%

mV

Negative reference voltage

Vrefn

VDET to VDET0

−5%

−Vrefp

+5%

mV

ZDET

Input impedance

−

9

−

k

Ω

Gain control (GCHF)

Input voltage for:

VGCHF

minimum HF gain

−

1,8

−

V

VGCHF

maximum HF gain

−

3,4

−

V

Input impedance

ZGCHF

at VGCHF = 1,5 to 4 V

−

25

−

M

Ω

Output current (see Fig.5)

IGCHF

∆VDET < Vrefn or ∆VDET > Vrefp

DODS = LOW

90

100

110

µA

IGCHF

∆VDET < Vrefn or ∆VDET > Vrefp

DODS = HIGH

86

96

106

µA

Vrefn < ∆VDET < VDETn1 or

IGCHF

VDETp1 < ∆VDET < Vrefp

DODS = LOW

−0,65

−0,35

−0,2

µA

Vrefn < ∆VDET < VDETn1 or

IGCHF

VDETp1 < ∆VDET < Vrefp

DODS = HIGH

−5,0

−4,4

−3,8

µA

IGCHF

VDETn1 < ∆VDET < VDETp1

DODS = X**

−0,65

−0,35

−0,2

µA

VDETp1/Vrefp; VDETn1/Vrefn

10

12,5

15

%

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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