TDA5153 Datasheet, PDF (19/28 Pages) NXP Semiconductors – Pre-amplifier for Hard Disk Drive HDD with MR-read/inductive write heads

Philips Semiconductors
Pre-amplifier for Hard Disk Drive (HDD)
with MR-read/inductive write heads
Preliminary specification
TDA5153
13 CHARACTERISTICS
V_CC = 5.0 V; V_CC(WD) = 8 V; V_GND = 0 V; T_amb = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Read characteristics
I_MR
∆I_MR
G_v(dif)
MR current adjust range
tolerance (excluding R_ext)
I--_{M-----R-I--M-}–_{---R--I--M(-P---RR---(-)-P---R---)}
with I_MR(PR) = 10 mA
differential voltage gain; note 1
R_ext = 10 kΩ; 0.5 mA steps
5
−
from head inputs to RDx, RDy;
R_MR = 28 Ω; I_MR = 10 mA;
f = 20 MHz;
d4 = 0
−
R_i(dif)
C_i(dif)
THD
B_L
B_H
F
V_nir
f_B(L)
d4 = 1
−
differential input resistance
I_MR = 10 mA
−
differential input capacitance
−
total harmonic distortion
−
signal gain pass band edge; note 2 −3 dB
−
signal gain pass band edge without −3 dB (4 nH lead inductance) −
gain boost; note 2
−3 dB (50 nH lead inductance) −
noise figure; note 3
R_MR = 28 Ω; I_MR = 10mA;
−
T_amb = 25 °C; f = 20 MHz
input referred noise voltage; note 3 R_MR = 28 Ω; I_MR = 10mA;
−
T_amb = 25 °C; f = 20 MHz
+3 dB noise low corner frequency R_MR = 28 Ω; I_MR = 10 mA;
−
T_amb = 25 °C; no lead
inductance
f_B(H)
+3 dB noise upper corner
frequency
R_MR = 28 Ω; I_MR = 10 mA;
−
T_amb = 25 °C; no lead
inductance
α_cs
PSRR
CMRR
channel separation; note 4
unselected head
−
power supply rejection ratio; note 5 f < 1 MHz; I_MR = 10 mA
−
f < 100 MHz; I_MR = 10 mA
−
common mode rejection ratio;
note 5
from nRx − nRy to RDx − RDy;
R_MR mismatch < 5%;
I_MR = 10 mA;
f < 1 MHz
−
f < 100 MHz
−
DR
rejection of SCLK and SDATA;
from SCLK, SDATA inputs to −
note 6
the RDx − RDy outputs; note 7
V_O(R)(dif)
output DC offset voltage in read
DC voltage between
−
mode (differential after DC settling) RDx − RDy (in read mode)
Z_o(R)
output impedance in read mode single ended
−
−
20.5 mA
±4
−
%
160 −
226 −
13
−
Ω
16
−
pF
1
−
%
−
100 kHz
220 −
MHz
170 −
MHz
3.0 3.2 dB
0.9 1.0 nV/√Hz
400 kHz
220
MHz
50
dB
80
dB
50
dB
45
dB
25
dB
50
dB
−
±0.2 V
16
−
Ω
1997 Jul 02
19