LD3300-16 查看數據表（PDF） - Unspecified
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LD3300-16 Datasheet PDF : 2 Pages
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LD3300-XX
2, 4, 6, 8, 10, 12, 14, and 16-Channel Programmable
+5V, -3V, MR Head Preamplifier
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DESCRIPTION
The LD3300-XX is one in the family of integrated
circuit products designed for use with Magneto-
Resistive recording heads. It is a register-based design
to provide maximum programmability. These devices
support 2, 4, 6, 8, 10 up to 16 channel MR Head. It
contains an MR low noise read amplifier, a thin film
head write driver and Interface/Command Control
block which provides the ability to program the
multiple operation modes, write currents and MR bias
voltages as well as control diagnostic functions. This
product family requires dual supply voltage of 5V, and
-3V. These devices are available in TQFP, or flip chip.
FEATURES
• Programmable Bandwidth from 150 to 360MHz
• Write current rise/fall time = 2.0ns
• Programmable Read Amplifier Gain 150, 250,
300, 350 V/V through ICCB (serial port)
• Programmable Thermal Asperity Threshold
Detection and Correction
• MR Head: Differential Voltage sense, Voltage
bias
• Head Unsafe, including Read and Write unsafe
sensing
• Interface/Command Control Block (ICCB) with
shadow register
• Servo write capability
• Power supply fault protection
• Programmable write current and MR bias voltage
• Available in TQFP & Flip Chip
CHEN
IWRN
MRRN
SDEN
SCLK
SDATA
BLOCK DIAGRAM
Interface/Command Control Block
Mode
Select
Head
Select
address
Decoder
Write Register
Read Register
Serial Port
Control
RREF
CBY2 CBX2
Write
DAC
Read
DAC
MUX
Write
Data
Read
Amp
0.40
Multiplier
Current
Generator
Write
Current
Bias
Dummy
Head
Read
Bias
Source
POR
Prog
Prog.
Vref
Head
Unsafe
Thermal
Gain
Asp. Detc. Post Pre
&
Amplifier
Correction
WDX WDY
CN VEER
VEE VDD VSS
HUS
RDX RDY
CBY1 CBX1
HWY5
HWX5
HRY5
HRX5
HWY0
HWX0
HRY0
HRX0
version 3.0
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