TDA8808T Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Fabricante

TDA8808T

Photo diode signal processor for compact disc players

Philips Electronics 

Philips Semiconductors

Photo diode signal processor for compact

disc players

Product specification

TDA8808T

TDA8808AT

SYMBOL

PARAMETER

CONDITIONS MIN.

TYP.

MAX.

τLO

For AC (note 12) delay time

* Value to be fixed.

** X = don’t care.

−

*

−

Notes to the characteristics

1. Voltage output signal VO1 measured at fHFin = 700 kHz; IHFin(p-p) = 7 µA; VGCHF = 2,4 V.

Voltage output signal VO2 measured at fHFin = 100 kHz; IHFin(p-p) = 7 µA; VGCHF = 2,4 V.

2. Voltage output signal VO1 measured at fHFin = 1 MHz; IHFin(p-p) = 7 µA; VGCHF = 2,4 V.

Voltage output signal VO2 measured at fHFin = 100 kHz; IHFin(p-p) = 7 µA; VGCHF = 2,4 V.

3. Phase of input/output signal, group delay and flatness measured at IHFin(p-p) = 1 µA; VGCHF = 4 V.

Group delay τ = d-d---w-φ-- ; ∆f ≈ 50 kHz.

Flatness: ∆τ = τmax − τmin.

4. HF part output voltage for closed loop conditions; fHFin = 500 kHz.

5. HF part output voltage for closed loop conditions; fHFin = 0,1 to 1 MHz.

M1 is the measured value of VO1.

6. P1 is the measured value of I--D----1----(--1---I-)-R---+-e--1--I--D(---1-2---)-(--1----)-- ⋅ --I--D---1----(-I--2R----)e---1-+--(---I2--D--)-2----(---2---)--

Where:

(1) are the current levels at fi = 25 kHz.

(2) are the current levels at fi = 1 kHz.

Measurement taken at VGCLF = 3,5 V.

7. P2 is the measured value of I--D----3----(--1---I-)-R---+-e--2--I--D(---1-4---)-(--1----)-- ⋅ --I--D---3----(-I--2R----)e---2-+--(---I2--D--)-4----(---2---)--

Where:

(1) are the current levels at fi = 25 kHz.

(2) are the current levels at fi = 1 kHz.

Measurement taken at VGCLF = 3,5 V.

8. S6 is the measured value of S1 ⋅ -I-D-4---T- – 1, 1 IBgc

Measurement taken at VGCLF = 3,5 V.

9. LF part reference current Iret and low-pass filter output voltage for closed loop conditions.

Measurement taken at IDT > IDT3; ∆VDET < VDETn2 or ∆VDET > VDETp2.

10. FE output current measured at VGCLF = 3, 5 V and Si ⁄ RD = HIGH Z; IST = V--R---F-F--O-O---CC-----SS---TT---AA---RR---T-T-

UNIT

ns

11. Laser supply transconductance for DC

GLDC = ∆--∆--V-I--L-L--O-M-- ( 0 < – ILO < 2 mA)

November 1987

14

Share Link: