TDA8809T Datasheet, PDF (7/16 Pages) NXP Semiconductors – Radial error signal processor for compact disc players

Philips Semiconductors
Radial error signal processor for compact
disc players
Product specification
TDA8809T
SYMBOL
PARAMETER
Digital inputs
B0, B1, B2 and B3
V_IH
Input voltage HIGH
V_IL
Input voltage LOW
I_IH
Input sink current HIGH
I_IL
Input source current LOW
Divide-by-4 input (DIV4)
V_IH
Input voltage HIGH
V_IL
Input voltage LOW
I_IH
Input sink current HIGH
I_IL
Input source current LOW
f_i
Input frequency at Re1 and
Re2
Radial error inputs (Re1; Re2)
V_Re1, V_Re2
I_Re1, I_Re2
Z_Re1, Z_Re2
Input voltage level
Input current
Input impedance
Gain control input (AGC)
Offset current
I_AGC
Lag current for
I_lag
I_lag
|Z_AGC|
minimum radial gain
maximum radial gain
Input impedance
Gain
I_AGC0
∆^----(^{---I--R---∆--}_e^-I-₁^-A---–^G----C-I--_R^---_e^---₂^---)^--
CONDITIONS
MIN.
TYP.
MAX. UNIT
note 2
note 2
divide-by-1
divide-by-4
2,0
−
V_P
V
0
−
0,8
V
0
0,03
1,0
µA
−3,0
−0,1
0
µA
2,0
−
V_P
V
0
−
0,8
V
0
5,0
(5)
µA
−10
−3
0
µA
−
10
50
kHz
I_Re1 = I_Re2 = −110 µA V_P−1,81 V_P− 1,71 V_P− 1,61 V
−
−110
−
µA
−
2,5
−
kΩ
rad on; lag hold off
V_AGC = 3,8 V;
I_Re1 = I_Re2 = 0
I_Re1 = −85 µA;
I_Re2 = −115 µA
V_AGC = 0,6 V
V_AGC = 3,8 V
−0,2
0
0,2
µA
−2,5
−0,45 +1,5
µA
−42
−30
−18
µA
−
(5)
−
MΩ
V_AGC = 3,8 V;
V_Cosc2 = V_ref + 1,4 V;
V_Cosc1 = V_ref;
I_Re1 = −100 µA;
I_Re2 = −100 µA
−
−2
−
µA
I_Re1 - I_Re2 = 4 µA
− I_AGC0 then
I_Re1 - I_Re2 = −4 µA
− I_AGC0
0,7
0,9
1,1
November 1987
7