- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄368629 > TDA5153BG (NXP SEMICONDUCTORS) Pre-amplifier for Hard Disk Drive HDD with MR-read/inductive write heads PDF資料下載
參數(shù)資料
| 型號： | TDA5153BG |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 光電元器件 |
| 英文描述： | Pre-amplifier for Hard Disk Drive HDD with MR-read/inductive write heads |
| 中文描述： | 4 CHANNEL READ WRITE AMPLIFIER CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, SOT-313, LQFP-48 |
| 文件頁數(shù)： | 21/28頁 |
| 文件大?。?/td> | 128K |
| 代理商： | TDA5153BG |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁當前第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
1997 Jul 02
21
Philips Semiconductors
Preliminary specification
Pre-amplifier for Hard Disk Drive (HDD)
with MR-read/inductive write heads
TDA5153
t
st(W)
write settle times; note 12
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
I
WR
-programmed /10
(I
WR
= 35 mA)
from falling edge of SEN to
write head active
70
ns
t
off(W)
write amplifier off time
50
ns
t
sw(W)
head switching (in write mode),
and standby to write head active
sleep to (and from) any other
modes
50
70
ns
t
sw(S)
100
μ
s
DC characteristics
I
CC(R)
I
CC(W)
supply current; note 13
supply current; note 14
read mode; I
MR
= 10 mA
write mode; I
WR
= 35 mA
from V
CC
(5 V)
from V
CC(WD)
(5 to 8 V)
72
80
mA
33
54
0.25
0.025
1.32
41
61
1
mA
mA
mA
mA
V
I
DD(stb)
I
DD(S)
V
ref
standby mode supply current
sleep mode supply current
reference voltage for R
ext
static
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Notes to the characteristics
1.
The differential voltage gain depends on the MR
resistance. It can be improved by programming the
d4 bit in the configuration register using the serial
interface.
2.
The gain boost implements a pole-zero combination:
The +3 dB gain boost corner frequency is
8 d3
4 d2
2 d1
1 d0
+
+
+
(
The
3 dB gain attenuation corner frequency is
8 d3
4 d2
2 d1
+
+
(
where d3, d2, d1, d0 are bits (0, 1) to be programmed
via the Serial Interface. In practical use, the bandwidth
is limited by the inductance of the connection between
the MR heads and the pre-amplifier.
Noise calculation
a)
Definitions:
The amplifier has a low-ohmic input.
No lead resistance is taken into account. The input
referred noise voltage, excluding the noise of the
MR resistors, is defined as follows:
V
v
3.
where G
v
is the voltage gain and V
no
is the noise
voltage at the output of the amplifier, k is the
)
-------------------------------800 MHz
1 d0
+
)
-------------------------------800 MHz
V
nir
2
-G
2
4kT
R
MR1
R
MR2
+
(
)
×
V
–
=
Boltzmann constant and T is the temperature in K.
The noise figure is defined as follows:
V
G
4kT
R
MR1
in 1 Hz bandwidth. Note that R
MR
includes all
resistances between Rx or Ry to ground.
b)
Noise figure versus I
MR
and R
MR
:
Table 1 shows
the variation of the noise figure with I
MR
(mA) and
R
(
).
c)
Input noise voltage consideration:
the input
referred noise voltage calculation can significantly
be different (from 1.0 to 0.44 nV/
√
Hz for instance)
by taking into account an equivalent
signal-to-noise ratio when using two MR stripes
(28
for each stripe) or one MR stripes (42 W).
It assumes that the signal coming from the head is
larger for a dual stripe head than for a single stripe
head (50% extra signal for dual stripe head).
The channel separation is defined by the ratio of the
gain response of the amplifier using the selected head
H(n) to the gain response of the amplifier using the
adjacent head H(n
±
1), Head H(n) being selected.
4.
F
10
log
--------
2
R
MR2
+
(
)
×
-----------------------------------------------------------
×
dB
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA5634T | 9 V UHF mixer/oscillator for TV and VCR tuners |
| TDA5731M | Low power VHF, UHF andhyperband mixer/oscillator for TVand VCR 3-band tuners(應(yīng)用于TV和 VCR三頻帶調(diào)諧的低功耗VHF，UHF和超頻帶混頻器/振蕩器) |
| TDA5732 | Low power VHF, UHF mixer/oscillator for TV and VCR 2-band tuners |
| TDA5732M | Low power VHF, UHF mixer/oscillator for TV and VCR 2-band tuners |
| TDA5744 | Low power mixers/oscillators for hyperband tuners |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA5153X | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Pre-amplifier for Hard Disk Drive HDD with MR-read/inductive write heads |
| TDA5155 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Pre-amplifier for Hard Disk Drive HDD with MR-read/inductive write heads |
| TDA5155X | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Pre-amplifier for Hard Disk Drive HDD with MR-read/inductive write heads |
| TDA5200 | 功能描述:射頻接收器 CNTRL RF RECEIVER 870MHZ 5V RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| TDA5200_10 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ASK Single Conversion Receiver |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。