TZA1038HW,118 NXP Semiconductors, TZA1038HW,118 Datasheet - Page 27

• Manufacturer Part Number: TZA1038HW,118
• Description: IC DVD SIGNAL PROC 48-HTQFP
• Manufacturer: NXP Semiconductors

Specifications of TZA1038HW,118

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP Exposed Pad, 48-eTQFP, 48-HTQFP, 48-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935273843118; TZA1038HW-T; TZA1038HW-T

Philips Semiconductors
Switches SW-A to SW-D can be programmed 1, 1 or 0
(respectively pass, invert or not pass the signal) for each
channel. In this way the data can be read by any
combination of diode inputs.
The first gain stage also carries the signals for DPD
tracking. Therefore this stage will also be active when
RFSUM input and DPD is selected. The DC offset
cancellation is also active in this situation but left and right
channels are controlled from a single DAC. Also in this
situation, the A to D and RFSUM inputs are used
simultaneously.
Control of the DC offset DACs can be chosen to be from
the same register or from two independent registers
(registers 4 and 5).
7.5.2
With bit RFSUM = 1:
(DVD
A
RFP = RFREF + 0.5
RFN = RFREF
Thus:
RF
7.5.3
The differential HF signal from the G
filter section that consists of an equalizer and a noise filter,
which are controlled by bits BWRF, RFKEQ, RFEQEN and
RFNFEN. The equalizer has a transfer function H
which is modelled after a target transfer function H
This represents a third-order equi-ripple phase filter with a
good delay response. The boost factor k is programmable
via the serial bus control bit RFKEQ. The corner
frequency
parameter bit BWRF. The equalizer is switched on with
control bit RFEQEN.
The noise filter has a transfer function H
modelled after a third-order Butterworth low-pass filter with
target transfer function H
2003 Sep 03
H
RFSUM
e
High speed advanced analog DVD signal
processor and laser supply
dif
s
= A
RFP
=
RFSUM
D
AND
HF
-------------------------------------------------------
1
[RFSUMP
ATA SIGNAL PATH THROUGH INPUT PINS
DVD
+
0RF
FILTERING
--------------- -
RFSUMN
1
0RF
s
+
= 2 f
RFN
2
0.5
k
[RFSUMP
2
) =
+
-------------- -
0RF
0RF
RFSUMN
s
A
A
2
3
3
is programmable via control
n
2
------------
(s):
0RF
s
(DVD
(DVD
RFSUMN
------------------------------ -
1
RFP
RFP
RF
+
3
OFFSS
stage is sent to a
1
DVD
DVD
2
------------
(s) which is
0RF
s
RF
]
RFN
RFN
OFFSS
RFSUMP
)
)
1
e
]
(s)
(s):
27
The corner frequency
filter. The noise filter is switched on with bit RFNFEN.
7.5.4
Focus servo signals:
OA =
+
OB =
+ (1
OC =
+
OD =
+ (1
The parameter
The focus offset DAC can be switched on with the control
bit F
7.5.5
7.5.5.1
DPD tracking can be activated with bits RT_mode[2:0] of
register 1. Input signals are taken from the diode inputs
A to D, through the input stage G
cancellation DAC. When bit RFSUM = 0, the input stage is
also used for the RF signal. When bit RFSUM = 1, the
setting for G
the setting for the data signal which goes through RFSUM.
S1
S2
relative to the period time T
is the full scale range.
H
------
T
P
n
t
DPD
DPD
s
is the time difference between the two input signals,
OFFSEN
F
F
------------ -
R
------------ -
R
------------ -
R
------------ -
R
= I
= I
OFFS
OFFS
=
)
)
LFC
LFC
1
1
LFC
LFC
1
1
F
R
(FS)(DPD)
-------------------------------------------- -
1
OCUS SIGNALS
ADIAL SIGNALS
(FS)(DPD)
F
F
DPD signals (DVD-ROM mode) with no
drop-out concealment
.
+
1
OFFS
OFFS
-------------- -
and DC offset control can be independent of
A
A
A
A
0RF
s
LFC
LFC
LFC
LFC
2
can be programmed via the serial bus.
1
2
+
------
T
(A
(B
(C
(D
------
T
------------
P
t
P
0RF
t
0RF
s
+ I
+ I
OPUREF + LF
OPUREF + LF
OPUREF + LF
OPUREF + LF
REFRAD
is equal to that of the equalizer
P
REFRAD
----------------------
1
of the input signal. I
+
1
------------
1
0RF
and the DC offset
s
TZA1038HW
Product specification
OFFS
OFFS
OFFS
OFFS
C
C
C
C
(FS)(DPD)
OFFSA
OFFSB
OFFSC
OFFSD
)
)
)
)