tda5155 NXP Semiconductors, tda5155 Datasheet - Page 18

• Manufacturer Part Number: tda5155
• Description: Pre-amplifier For Hard Disk Drive Hdd With Mr-read/inductive Write Heads
• Manufacturer: NXP Semiconductors

Philips Semiconductors
13 CHARACTERISTICS
V
1997 Apr 08
Read characteristics
I
G
R
C
THD
B
B
F
V
B
B
PSRR
CMRR
MR
CC
I
cs
L
H
irn
F(L)
F(H)
Pre-amplifier for Hard Disk Drive (HDD)
with MR-read/inductive write heads
i(dif)
i(dif)
v(dif)
MR
SYMBOL
= 5.0 V; V
CC(WD)
MR current adjust range
tolerance (excluding R
differential voltage gain;
note 1
differential input resistance
differential input
capacitance
total harmonic distortion
lower signal gain pass-band
edge
higher signal gain
pass-band edge
noise figure
input referred noise voltage;
note 3
lower noise band edge
(+3 dB)
upper noise band edge
(+3 dB)
channel separation; note 4
power supply rejection ratio;
note 5
common mode rejection
ratio; note 5
= 8 V; V
PARAMETER
GND
= 0 V; T
ext
)
amb
= 25 C; unless otherwise specified.
R
I
from head inputs to RDx, RDy;
R
f = 20 MHz
I
R
T
R
T
R
T
no lead inductance
R
T
no lead inductance
unselected head
f < 1 MHz; I
f < 100 MHz; I
from nRx-nRy to RDx-RDy R
mismatch < 5%
I
MR
MR
MR
3 dB
3 dB; note 2
amb
amb
amb
amb
ext
MR
MR
MR
MR
MR
d4 = 0
d4 = 1
without gain boost
(4 nH lead inductance)
with gain boost
(50 nH lead inductance)
f < 1 MHz
f < 100 MHz
programmed at 10 mA
= 10 mA
= 10 mA
= 10 k ; 0.5 mA steps
= 28 ; I
= 28 ; I
= 28 ; I
= 28 ; I
= 28 ; I
= 25 C; f = 20 MHz
= 25 C; f = 20 MHz
= 25 C;
= 25 C;
CONDITIONS
MR
18
MR
MR
MR
MR
MR
MR
= 10 mA
= 10 mA;
= 10 mA;
= 10 mA;
= 10 mA;
= 10 mA;
= 10 mA
MR
5
MIN.
160
226
13
16
1
220
170
3.0
0.9
220
50
80
50
45
25
4
TYP.
Preliminary specification
20.5
100
3.2
1.0
400
MAX.
TDA5155
mA
%
pF
%
kHz
MHz
MHz
dB
nV/ Hz
kHz
MHz
dB
dB
dB
dB
dB
UNIT