tza1020 NXP Semiconductors, tza1020 Datasheet - Page 24

• Manufacturer Part Number: tza1020
• Description: Pre-amplifiers For Cd-rw Systems
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2000 Oct 30
V
V
R
Wobble pre-processor; see note 10 and Table 33
LPF2
B
V
k
G
I
SR
B
M
V
R
B
k
g
V
l
/I
bal
mult
m(V-I)
B
AZIN
o(DALPHA)
ARIABLE GAIN LOOP
PPN(norm)
ref(V-I)
sw(AINTON)
ca
Pre-amplifiers for CD-RW systems
bal
ULTIPLIER LOOP
r
3dB(LPF2)
3dB(bal)
3dB(HPF)
LPF2
SYMBOL
loop
voltage on AZIN input node I
output voltage pin
DALPHA
resistance AINTON switch
bandwidth ( 3 dB) of LPF2 lpsel = 00
relative variation B
over input current range
sensitivity balance circuit
gain balancing circuit
input current range of
balancing circuit
slew rate loop
bandwidth variable gain
loop
normalize voltage pin PPN
resistance ca
bandwidth ( 3 dB) of HPF
sensitivity multiplier
transconductance V
reference voltage V
PARAMETER
LPF2
I
I
I
lpsel = 01
lpsel = 10
lpsel = 11
note 10
cdrwsel = 0
cdrwsel = 1
ppnctrl1 = 0
I
ppnctrl1 = 0; note 11
AMON = 0
AMON = 1
note 12
ppnctrl2 = 0
AZIN
AZIN
op
V
p
= I
= 100 A
= 10 A
CONDITIONS
on
V
ref(V-I)
= 0 A; note 11
24
< 0.354 V;
32
64
120
240
0.758
3.0
0.5
800
40
3.25
3.5
MIN.
TZA1020; TZA1020A
0
50
40
80
150
300
1
0.889
3.5
6200
0
1000
0
3.14
8
50
0.19
340
0
3.5
60
TYP.
+3.5
48
96
180
360
6
0.951
3.84
2
1250
1
60
3.75
Product specification
MAX.
mV
mV
V
kHz
kHz
kHz
kHz
%
V
V/s
V/s
kHz
kHz
V
k
k
kHz
mA/V
V
A/V
A/V
UNIT
1
2