TDA5155X Philips Semiconductors, TDA5155X Datasheet - Page 20

• Manufacturer Part Number: TDA5155X
• Description: Pre-amplifier for Hard Disk Drive HDD with MR-read/inductive write heads
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1997 Apr 08
Switching characteristics
f
t
t
t
t
t
t
t
DC characteristics
I
I
I
I
V
SCLK
rec(W-R)
sw(R)
off(R)
st(W)
off(W)
sw(W)
sw(S)
CC(R)
CC(W)
DD(STB)
DD(S)
V
ref
Pre-amplifier for Hard Disk Drive (HDD)
with MR-read/inductive write heads
SYMBOL
o(cm)
serial interface clock rate
common mode DC output
voltage change from read to
write mode
write-to-read recovery time
(AC and DC settling);
note 9
head switching (in read
mode), standby to read
active and MR current
change recovery time.
(AC and DC settling);
note 10
read amplifier off time
write settling times; note 11
write amplifier off time
head switching (in write
mode), and standby to write
head active
switch time to and from
sleep mode
read mode supply current
write mode supply current
standby mode supply
current
sleep mode supply current
reference voltage for R
PARAMETER
ext
I
from 50% of the rising edge of
R/W to steady state read-back
signal: AC and DC settling at
90% (without load at RDx, RDy)
from falling edge of SEN to
steady state read-back signal
(without load at RDx, RDy)
from falling edge of R/W to read
head inactive
from 50% of the falling edge of
R/W to 90% of the steady state
write current (in write mode)
from rising edge of R/W to
1
(I
from falling edge of SEN to write
head active
I
I
static
MR
MR
WR
10
WR
read amplifier OFF: d5 = 0
read amplifier ON: d5 = 1
from V
from V
= 10 mA; I
= 10 mA; note 12
= 35 mA; note 13
= 35 mA)
I
WR
CC
CC(WD)
CONDITIONS
(programmed)
(5 V)
20
WR
(5 to 8 V)
= 35 mA
MIN.
200
3
100
3
50
72
33
54
0.25
1.32
0.02
TYP.
Preliminary specification
25
4.5
150
4.5
50
70
50
70
100
80
41
61
1
MAX.
TDA5155
MHz
mV
ns
ns
ns
ns
ns
mA
mA
mA
mA
mA
V
s
s
s
UNIT