TZA1026T Philips Semiconductors, TZA1026T Datasheet - Page 13

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TZA1026T

Manufacturer Part Number
TZA1026T
Description
Data amplifier and laser supply circuit for CD audio and video optical systems ADALASAuto
Manufacturer
Philips Semiconductors
Datasheet

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Philips Semiconductors
The application for the TZA1026 (ADALASAuto) with the SAA7326 (CD10Auto) without a coupling capacitor is shown in
Fig.9. A minimum supply voltage (V
1998 Oct 30
handbook, full pagewidth
Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASAuto)
(1) See Equation (3) to calculate the value of this resistor.
(2) Pins EQSEL and CDRW can be controlled by the CD10Auto or a microprocessor but can also be fixed or switched by any other means.
(3) The 10 k feedback resistor between pins 9 and 10 is a fixed value.
(4) For recommended values per speed see Table 1.
(5) The high-pass filter (AC-coupling) is placed at the input of the preamplifier. The 3 dB point (f = 10 kHz) is at
(6) The minimum supply voltage (V
OPU
LD
MON
VCOM
D1
D2
D3
D4
S1
S2
Fig.9 Application diagram with SAA7326 (CD10Auto) without coupling capacitor.
V DD
100 nF
V DD(LASER)
DD
) without using a coupling capacitor is 2.8 V.
R2 (4 )
C2
10 nF
(5)
DD
PWRON
) is required for optimal performance.
V DD(L)
MON
CFIL
GND
DIN
LD
1
2
3
4
5
6
7
TZA1026
(ADALAS
Auto)
LF FILTER
14
13
12
11
10
13
9
8
RGADJ
V DD
EQSEL
CDRW
RFEQO
RFFB
CMFB
R RGADJ
10 k
(3)
(1)
V DD
1 k
100 nF
(6)
100 nF
C1
(4)
microprocessor
6
R2
-------------------------------------------- -
from
220 pF
100 nF
HFREF
ISLICE
LDON
4
VRIN
HFIN
C2 F
(2)
D1
D2
D3
D4
S1
S2
Product specification
(CD10Auto)
SAA7326
TZA1026
MBK892

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