PHILIPS TZA1015T

INTEGRATED CIRCUITS
DATA SHEET
TZA1015
Data amplifier and laser supply
circuit for CD and read-only optical
systems (HDALAS)
Product specification
Supersedes data of 1998 Sep 09
File under Integrated Circuits, IC01
1999 Aug 19
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
FEATURES
GENERAL DESCRIPTION
• Six input buffer amplifiers with low-pass filtering and
virtually no offset
The TZA1015 is a data amplifier and laser supply circuit for
3-beam pick-up detectors found in a wide range of CD and
read-only optical systems.
The device contains 6 transimpedance amplifiers to
amplify and filter the focus and radial photo diode voltage
input signals. The preamplifier forms a versatile,
programmable interface from voltage output CD
mechanisms to the Philips’ digital signal processor family.
• Universal photodiode IC interface using internal
conversion resistors
• RF data amplifier with wide bandwidth designed for data
rates up to a maximum of 30×
• Programmable RF gain for CD-A/V, CD-R, CD-R/W and
CD-ROM applications
The dynamic range of this preamplifier/processor
combination can be optimized for the LF servo and RF
data paths. The servo channel gain is set by the ADC
range of the processor. The RF data channel can be
programmed in the TZA1015 preamplifier.
The programmable RF bandwidth allows this device to be
used in CD-A/V applications or CD-R, CD-R/W and
CD-ROM applications with a data rate up to a maximum of
30×. The RF and LF gain can be adapted for CD-A/V,
CD-R and CD-ROM discs or CD-R/W discs by means of a
gain switch. In addition to this gain switch the RF gain is
programmable to guarantee optimal playability. In order to
enable minimal access time the TZA1015 generates a
Fast Track Count signal which enables the decoder
(ACE or MACE) to count the number of tracks during a
track jump.
• Programmable RF bandwidth for optimal playability
• Radial error signal for fast track counting
• Programmable RF/Fast Track Count (FTC) gain for
optimal dynamic range
• Fully automatic laser control including stabilization and
on/off switch plus a separate supply for power efficiency
• Automatic monitor diode polarity selection
• Adjustable laser bandwidth and laser switch-on current
slope using external capacitor
• Protection circuit to prevent laser damage due to supply
voltage dip
• Optimized interconnection between data amplifier and
Philips’ digital signal processor family (CD7, ACE and
MACE)
The device can accommodate astigmatic, single Foucault
and double Foucault detectors and can be used with all
laser and N- or P-sub monitor diodes. The Automatic Laser
Power Control (ALPC) circuit will maintain control over the
laser diode current. With an on-chip reference voltage
generator, a constant and stabilized output power is
ensured independent of ageing. A separate power supply
connection allows the internal power dissipation to be
reduced by connecting a low voltage supply.
• Wide supply voltage range
• Wide temperature range
• Low power consumption.
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
TZA1015T
1999 Aug 19
SO28
DESCRIPTION
plastic small outline package; 28 leads; body width 7.5 mm
2
VERSION
SOT136-1
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
VDD(RF,LF)
supply voltage
4.5
5.0
5.5
V
VDD(L)
laser supply voltage
3
−
5.5
V
LF amplifiers
IOS
channel matching
−
−
1
%FS
B(−3dB)
−3 dB bandwidth
65
90
115
kHz
−
10
−
MHz
−
20
−
MHz
−
50
−
MHz
−
−
0.4
ns
−
−
100
mA
N-type monitor
−
0.150
−
V
P-type monitor
−
VDD(RF,LF) − 0.150 −
V
RF amplifier
B(−3dB)
td(f)(RF)
−3 dB bandwidth
programmable;
GARF = open-circuit
RF flatness delay
Laser supply
Io(LASER)(min) minimum laser output current VDD(L) = 3 V
Vi(mon)
monitor input voltage
Temperature range
Toper
operating temperature
0
−
85
°C
Tstg
storage temperature
−65
−
+150
°C
1999 Aug 19
3
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
BLOCK DIAGRAM
handbook, full pagewidth
D1
D2
D3
D4
S5
6
+
7
+
8
+
9
+
10
+
11
S6
+
−
+
+
22
+
21
+
20
+
19
+
18
+
17
RFBWS
VCOM
O3
−
O4
−
O5
−
O6
−
15
26
GSE
O2
−
25
GARF
O1
−
28
FTC
RFP
RFN
VDD(LF)
27
1
14
13
Vref
TZA1015
V/I
(1)
MON
5
VGAP
V/I
2
LD
V/I
4
23
12
3
24
16
MGK356
VDD(RF) VDD(LF)
VDD(L)
GND
(1) Bandgap reference voltage.
Fig.1 Block diagram.
1999 Aug 19
4
PWRON
CFIL
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
PINNING
SYMBOL
PIN
DESCRIPTION
RFBWS
1
RF amplifier bandwidth select
LD
2
current output to the laser diode
VDD(L)
3
laser supply voltage
CFIL
4
external filter capacitor
MON
5
laser monitor diode input
D1
6
input photo diode amplifier 1 (central)
D2
7
input photo diode amplifier 2 (central)
D3
8
input photo diode amplifier 3 (central)
D4
9
input photo diode amplifier 4 (central)
S5
10
input photo diode amplifier 5
(satellite)
S6
11
input photo diode amplifier 6
(satellite)
VDD(LF)
12
LF diode and FTC amplifier supply
voltage
handbook, halfpage
RFBWS 1
LD 2
27 GSE
VDD(L) 3
26 RFN
CFIL 4
25 RFP
MON 5
24 GND
D2 7
D3 8
21 O2
D4 9
20 O3
S5 10
19 O4
S6 11
18 O5
VDD(LF) 12
17 O6
common mode DC reference input
Vref
14
DC reference voltage for biasing of
Opto Electronic IC (OEIC)
FTC
15
fast track count amplifier output
PWRON
16
power on/off switch (Vref bias
generator always active)
O6
17
output photo diode amplifier 6
VCOM 13
O5
18
output photo diode amplifier 5
Vref 14
O4
19
output photo diode amplifier 4
O3
20
output photo diode amplifier 3
O2
21
output photo diode amplifier 2
22
output photo diode amplifier 1
23
RF amplifier supply voltage
GND
24
ground
RFP
25
positive output RF data amplifier
RFN
26
negative output RF data amplifier
GSE
27
gain select for CD, CD-R, CD-R/W;
RF and FTC amplifiers
GARF
28
gain adjust for RF and FTC amplifiers
1999 Aug 19
22 O1
TZA1015
13
VDD(RF)
23 VDD(RF)
D1 6
VCOM
O1
28 GARF
16 PWRON
15 FTC
MGK355
Fig.2 Pin configuration.
5
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VDD(RF,LF)
supply voltage
−0.5
+5.5
VI(n)
input voltage for all pins
−0.5
VDD(RF,LF) + 0.5 V
Isource
source current
pin FTC
−
4
mA
pin RFP
−
2
mA
pin RFN
−
2
mA
−40
+100
°C
−
700
mW
Tamb
operating ambient temperature
Pmax
maximum power dissipation
note 1
V
Note
1. Based on standard measurement for determining thermal resistance of the package. In accordance with
MIL-STD 883C.
CHARACTERISTICS
VDD(LF) = VDD(RF) = VDD(L) = 5.0 V; Tamb = 25 °C; PWRON = HIGH; GSE = LOW; GARF = open-circuit;
RFBWS = HIGH; DC input voltages at pins VCOM, D1 to D4, S5 and S6 = 1⁄2VDD; output voltage at pins O1 to O6 = 0 V;
IDD(L)(d) = 50 mA; CCFIL = 1 nF; unless otherwise specified. Diode input voltages all with respect to VCOM.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
VDD(RF,LF)
supply voltage
4.5
5.0
5.5
V
VDD(L)
laser supply
voltage
3
−
5.5
V
IDD(LF)
LF supply current
−
13
−
mA
IDD(RF)
RF supply current
−
20
−
mA
IDD(L)(d)
laser diode supply
current
−
50
100
mA
Iq
quiescent supply
current
−
−
6
mA
Vi(D1-D4,S5,S6) input signal voltage all inputs;
range (with respect GSE = LOW
to VCOM)
all inputs;
GSE = HIGH
0
−
0.6
V
0
−
0.15
V
VI(CM)
1.6
−
VDD(RF,LF) − 2.2 V
PWRON = LOW
Input voltages
1999 Aug 19
common mode DC
reference input
voltage range
6
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
SYMBOL
PARAMETER
CONDITIONS
TZA1015
MIN.
TYP.
MAX.
UNIT
LF diode amplifiers
ZCONV
Io(LF)
conversion
impedance
central diodes,
D1 to D4
GSE = LOW
40
47
54
kΩ
GSE = HIGH
10.5
12.5
15.0
kΩ
satellite diodes,
S5 and S6
GSE = LOW
75
92
106
kΩ
GSE = HIGH
20.5
24.5
28
kΩ
central diodes,
O1 to O4
0
−
12
µA
satellite diodes,
O5 and O6
0
−
6
µA
−0.2
−
VDD(RF,LF) − 2.1 V
−
3.1
−
pF
−
3.1
−
pF
central diodes,
O1 to O4
−1
−
+1
%FS
satellite diodes,
O5 and O6
−2
−
+2
%FS
central diodes,
D1 to D4
65
90
115
kHz
satellite diodes,
S5 and S6
65
90
115
kHz
output current
range
VO(LF)
DC output voltage
range central and
satellite diodes
Zi
input impedance
note 1
central diodes
satellite diodes
IOS
B(−3dB)
channel pair
matching
note 2
−3 dB bandwidth
RF amplifier
VO(RFP)
DC output level
RFP
GSE = LOW or
HIGH;
Vi(D1 to D4) = 0 V
0.25
0.5
0.7
V
VO(RFN)
DC output level
RFN
GSE = LOW or
HIGH;
Vi(D1 to D4) = 0 V
2.6
3.1
3.4
V
Vo(RF)(dif)
differential RF
output signal
(Vo(RFP) − Vo(RFN))
note 3
−
2
−
V
Vo(RF)
single-sided RF
output signal
note 3
−
1
−
V
Zo(RF)
RF output
impedance
−
25
−
Ω
1999 Aug 19
7
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
SYMBOL
GRF
td(f)(RF)
BRF(−3dB)
PARAMETER
RF path gain
RF flatness delay
−3 dB bandwidth
(RF signal)
CONDITIONS
MIN.
TYP.
MAX.
UNIT
note 4
GSE = LOW
9
10.5
12
dB
GSE = HIGH
21
22.5
24
dB
f < 5 MHz;
RFBWS = LOW
−
−
2.0
ns
f < 10 MHz;
RFBWS =
open-circuit
−
−
1.0
ns
f < 25 MHz;
−
RFBWS = HIGH
−
0.4
ns
GSE = LOW or
HIGH; note 5
GSE = LOW or
HIGH
RFBWS = LOW
−
10
−
MHz
RFBWS =
open-circuit
−
20
−
MHz
RFBWS = HIGH −
50
−
MHz
RFBWS = LOW
−
1.0
−
mV
RFBWS =
open-circuit
−
1.4
−
mV
RFBWS = HIGH
−
2.1
−
mV
1.3
1.5
1.7
V
GSE = LOW
16.5
18
19.5
dB
GSE = HIGH
26.5
28
29.5
dB
220
300
380
kHz
−
−
100
mA
N-type
−10%
0.150
+13.5%
V
P-type
−
VDD(RF,LF) − 0.150
−
V
Io(LASER) = 100 mA −
−
VDD(L) − 1.2
V
Vn(in-band)(rms) in-band noise
(RMS value)
VO(FTC)
fast track count DC GSE = LOW or
output level
HIGH; note 6
GFTC
fast track count
gain
BFTC(−3dB)
TZA1015
fast track count
−3 dB bandwidth
f = 100 kHz;
note 7
Laser supply (APC)
Io(LASER)(min)
minimum laser
output current
Vi(mon)
monitor input
voltage
Vo(LASER)
laser output
voltage range
tsw(on)(LASER)
laser switch-on
time
−
3
−
ms
Ii(mon)
monitor input
current
−
−
100
nA
1999 Aug 19
8
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
SYMBOL
PARAMETER
CONDITIONS
TZA1015
MIN.
TYP.
MAX.
UNIT
Control inputs
Zi(pd)
pull-down input
impedance
(pin GSE)
−
150
−
kΩ
Zi(pu)
pull-up input
impedance
(pin PWRON)
−
150
−
kΩ
VIL
LOW-level input
voltage
pins GSE
and PWRON
−0.2
−
V DD(RF,LF)
-------------------------3.3
V
pins GARF
and RFBWS
−0.2
−
+0.5
V
−
VDD(RF,LF) + 0.2 V
VIH
HIGH-level input
voltage
pins GSE
and PWRON
V DD(RF,LF)
-------------------------1.4
pins GARF
and RFBWS
VDD(RF,LF) − 0.5
−
VDD(RF,LF) + 0.2 V
IIL
LOW-level input
current
(pins GARF
and RFBWS)
−
−
−70
µA
IIH
HIGH-level input
current
(pins GARF
and RFBWS)
−
−
80
µA
V DD(RF,LF)
-------------------------2
+10%
V
Vref voltage source
VO
DC output voltage
IO
output current
range
ZO
1999 Aug 19
−10%
sink
1.5
−
−
mA
source
−
−
−3
mA
DC output
impedance
−
−
30
Ω
9
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
Notes
1. The output current can be increased but does not match the default input range of the servo system.
2. Matching defined in % of FS output per channel pairs (O1 − O2), (O3 − O4), (S5 − S6), at 1⁄3 and 2⁄3 of full output
scale.
3. Vo(RFP) = Vo(RF); Vo(RFN) = −Vo(RF).
4. Gain is defined as:
V o ( RFP )
V o ( RFN )
G RF = 20 × log -------------------- = 20 × log -------------------V i ( LF )
V i ( LF )
ΣV i(D)
All inputs assumed to be equal: V i(LF) = -------------- , where i = 1 to 4 and D means diode.
4
5. See Figs 3, 4 and 5.
6. Voltage is based on 2 PN junctions and is temperature dependent.
V o ( FTC )
7. Gain is defined as: G FTC = 20 × log ----------------------------------------( V i ( S5 ) – V i ( S6 ) )
MGK357
12
handbook, halfpage
G
(dB)
MGK358
12
9.00
td
handbook, halfpage
G
(dB)
(ns)
14.5
td
(ns)
(1)
14.0
8.75
11
8.50
10
13.5
9
8.25
9
13.0
8
8.00
8
12.5
11
(1)
(2)
10
(2)
7
10−1
(1) Gain.
(2) Delay.
1
Definition of delay:
10
f (MHz)
7
10−1
7.75
102
ϕ 
 -------- 360-
delay = --------------f
(1) Gain.
(2) Delay.
Fig.3 Gain and delay for 50 MHz bandwidth.
1999 Aug 19
1
Definition of delay:
10
f (MHz)
12.0
102
ϕ 
 -------- 360-
delay = --------------f
Fig.4 Gain and delay for 20 MHz bandwidth.
10
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
MGK359
12
handbook, halfpage
(2)
G
(dB)
23
td
(ns)
21
11
(1)
10
19
9
17
8
15
7
10−1
(1) Gain.
(2) Delay.
Definition of delay:
1
10
f (MHz)
13
102
ϕ 
 -------- 360-
delay = --------------f
Fig.5 Gain and delay for 10 MHz bandwidth.
Table 1
Control inputs, conversion impedances and gain settings
PIN GSE
PIN GARF
NOMINAL LF V/I
CONVERSION
(CENTRAL DIODES)
NOMINAL LF V/I
CONVERSION
(SATELLITE DIODES)
NOMINAL RF
GAIN (dB)
NOMINAL FTC
GAIN (dB)
LOW
LOW
47 kΩ
92 kΩ
7
14
LOW
open-circuit
47 kΩ
92 kΩ
10.5
18
LOW
HIGH
47 kΩ
92 kΩ
15
22
HIGH
LOW
12.5 kΩ
24.5 kΩ
19
24
HIGH
open-circuit
12.5 kΩ
24.5 kΩ
22.5
28
HIGH
HIGH
12.5 kΩ
24.5 kΩ
27
32
Table 2
Control inputs and RF bandwidth
PIN RFBWS
RF AMPLIFIER BANDWIDTH
LOW
10 MHz
open-circuit
20 MHz
HIGH
50 MHz
1999 Aug 19
11
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
APPLICATION INFORMATION
The circuits shown in Figs 6 and 7 are applications for the TZA1015 (HDALAS) with the SAA7370A (CD7) or the
SAA7348 (ACE).
from
microprocessor(1)
handbook, full pagewidth
RFBWS
LD
MON
OPIC
from
microprocessor(1)
28
1
LD
2
VDD(LASER)
VDD(L)
3
100
nF
CFIL
4
1 nF
MON
5
D1
D1
D2
D2
D3
D3
D4
D4
S5
S5
S6
S6
VDD(RF, LF)
100 nF
Vref
VDD(LF)
VCOM
Vref
27
26
25
24
23
6
22
7
TZA1015
8
9
(HDALAS)
21
20
10
19
11
18
12
17
13
16
100
nF
GARF
100
nF
ISLICE
Iref
GSE
RFN
RFP
1 nF
1 nF
R2(2)
22
kΩ
R1(2)
C1(2)
22
kΩ
GND
VDD(RF, LF)
VDD(RF)
100 nF
HFIN
HFREF
O1
D1
O2
D2
O3
D3
O4
D4
O5
R1
O6
R2
PWRON
LDON
14
18
15
17
3
SAA7370A
4
(CD7)
5
7
8
9
64
6
14
15
FTC
6 × 220 pF
VRL
100 nF
to
microprocessor(3)
(1) Pins RFBWS, GARF and GSE can be microprocessor controlled but can also be fixed or switched by any other means.
(2) For recommended values per speed see Table 3.
(3) The FTC output is available for optional processing.
Fig.6 Application diagram with SAA7370A (CD7).
1999 Aug 19
12
MGK360
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
from
microprocessor(1)
handbook, full pagewidth
RFBWS
LD
MON
OPIC
from
microprocessor(1)
28
1
LD
2
VDD(LASER)
VDD(L)
3
100
nF
CFIL
4
1 nF
MON
5
D1
D1
D2
D2
D3
D3
D4
D4
S5
S5
S6
S6
VDD(RF, LF)
VDD(LF)
VCOM
100 nF
Vref
Vref
TZA1015
27
26
25
24
6
23
7
22
TZA1015
(HDALAS)
8
21
9
20
10
19
18
11
12
17
13
16
14
15
GARF
GSE
RFN
RFP
C1(2)
68 nF R1(2)
GND
HFIN
9
VDD(RF, LF)
VDD(RF)
100 nF
O1
D1
O2
D2
O3
D3
O4
D4
O5
S1
O6
S2
PWRON
LDON
22 nF
FTC
100 nF
FTCH
47
kΩ
5
pF
FTCL
15
SAA7348
16
(ACE)
17
20
21
22
100
24
25
MGK361
(1) Pins RFBWS, GARF and GSE can be microprocessor controlled but can also be fixed or switched by any other means.
(2) For recommended values per speed see Table 4.
Fig.7 Application diagram with SAA7348 (ACE).
Table 3
Recommended values of components per
speed for application diagram of Fig.6
Table 4
Recommended values of components per
speed for application diagram of Fig.7
N
C1
R1
R2
N
C1
R1
1×
47 pF
1 kΩ
1 kΩ
1×
100 pF
1 kΩ
2×
47 pF
470 Ω
470 Ω
2×
47 pF
1 kΩ
4×
22 pF
470 Ω
470 Ω
4×
22 pF
1 kΩ
8×
10 pF
470 Ω
470 Ω
8×
22 pF
470 Ω
10×
8.2 pF
470 Ω
470 Ω
16×
10 pF
470 Ω
18×
6.8 pF
470 Ω
1999 Aug 19
13
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
PACKAGE OUTLINE
SO28: plastic small outline package; 28 leads; body width 7.5 mm
SOT136-1
D
E
A
X
c
y
HE
v M A
Z
15
28
Q
A2
A
(A 3)
A1
pin 1 index
θ
Lp
L
1
14
e
w M
bp
0
detail X
5
10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
HE
L
Lp
Q
v
w
y
mm
2.65
0.30
0.10
2.45
2.25
0.25
0.49
0.36
0.32
0.23
18.1
17.7
7.6
7.4
1.27
10.65
10.00
1.4
1.1
0.4
1.1
1.0
0.25
0.25
0.1
0.9
0.4
inches
0.10
0.012 0.096
0.004 0.089
0.01
0.019 0.013
0.014 0.009
0.71
0.69
0.30
0.29
0.050
0.419
0.043
0.055
0.394
0.016
0.043
0.039
0.01
0.01
0.004
0.035
0.016
Z
(1)
θ
8o
0o
Note
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
SOT136-1
075E06
MS-013AE
1999 Aug 19
EIAJ
EUROPEAN
PROJECTION
ISSUE DATE
95-01-24
97-05-22
14
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
SOLDERING
Wave soldering
Introduction
Wave soldering techniques can be used for all SO
packages if the following conditions are observed:
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.
• The longitudinal axis of the package footprint must be
parallel to the solder flow.
• The package footprint must incorporate solder thieves at
the downstream end.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “Data Handbook IC26; Integrated Circuit Packages”
(order code 9398 652 90011).
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Reflow soldering
Reflow soldering techniques are suitable for all SO
packages.
Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.
Repairing soldered joints
Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.
1999 Aug 19
15
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
TZA1015
DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1999 Aug 19
16
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
NOTES
1999 Aug 19
17
TZA1015
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
NOTES
1999 Aug 19
18
TZA1015
Philips Semiconductors
Product specification
Data amplifier and laser supply circuit for CD
and read-only optical systems (HDALAS)
NOTES
1999 Aug 19
19
TZA1015
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Internet: http://www.semiconductors.philips.com
SCA 67
© Philips Electronics N.V. 1999
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
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under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
545002/03/pp20
Date of release: 1999
Aug 19
Document order number:
9397 750 06271