TZA1025T Philips Semiconductors, TZA1025T Datasheet - Page 7

• Manufacturer Part Number: TZA1025T
• Description: Data amplifier and laser supply circuit for CD audio and video optical systems ADALASLC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
CHARACTERISTICS
V
CDRW = LOW; C
specified.
1998 Oct 30
Supplies
V
V
I
I
RF amplifier
I
Z
V
V
V
Z
t
G
Z
THD
PSRR
V
s)
Laser supply circuit
V
I
)
Z
DD
q
i(DIN)
d(f)(RF)
o(LASER)(max
DD
SYMBOL
i(DIN)
o(RFEQO)
tr(RF)
o(LASER)
DD
DDL(L)
CMFB
O(RFEQO)
o(RFEQO)
n(in-band)(rm
drop
Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)
RF
= 2.4 V; V
RF
RF
DD(L)
supply voltage
laser supply voltage
supply current
quiescent supply
current
central diode input
current
central diode input
impedance
common mode
feedback input voltage
RF amplifier output
DC-level
RF amplifier output
voltage
RF amplifier output
impedance
RF flatness delay
RF path gain boost
RF transimpedance
RF total harmonic
distortion
RF power supply ripple
rejection
in-band noise
(RMS value)
drop voltage
maximum laser output
current
laser output impedance V
CFIL
PARAMETER
V
= 10 nF; R
o(LASER)
= 0.55 V; I
RFFB
= 10 k ; pin RGADJ connected to ground; T
PWRON = LOW
CDRW = LOW
CDRW = HIGH
note 1
f = 720 kHz; note 2
note 3
note 4
0 to 100 kHz
note 4
note 5
V
i(DIN)
drop
drop
CDRW = LOW
CDRW = HIGH
I
I
o(LASER)
o(LASER)
CONDITIONS
= 0.55 V; note 6 80
= 0.55 V; note 7
= 0 mA; I
= 53 mA
= 20 mA
o(LASER)
7
= 80 mA; V
2.4
2.4
0.7
V
V
0.25
9.2
35.6
0.55
70
CMFB
CMFB
MIN.
0.05
0.35
CMFB
3
100
1
100
5
9.8
38
40
2.7
500
1200
=
50
2
V
amb
1
DD
TYP.
2
V
= 25 C; unless otherwise
DD
; PWRON = HIGH;
5.5
5.5
40
+70
V
V
V
V
10
10.4
40.4
5.5
DD
CMFB
CMFB
DD
Product specification
MAX.
0.4
0.25
+ 0.25 V
+ 0.35 V
TZA1025
V
V
mA
V
V
ns
dB
k
k
dB
dB
mV
V
mA
UNIT
A
A