CXA1829N中文资料索尼数据手册PDF规格书

描述 Description

The CXA1829N is a Read/Write amplifier for hard disk drive thin-film heads and is designed to handle up to 8-channel heads.

特性 Features

• Operates on a single 5V power supply.

• Low power consumption. Read: 115 mW Write (IW = 15 mA): 160 mW + IW × 5 Power Save: 7 mW

• Write current can be varied through an external resistor. Built-in stabilizer circuit provides stable current, preventing voltage and temperature drift.

• Drives up to 8 heads.

• Supports thin film heads or 2-pin MIG heads.

• Emitter follower-type Read amplifier features 290 times gain (typ.).

• Write-unsafe detection circuit.

• Damping resistance is switched at Write (315 Ω).

• Simultaneous Write function.

• Supply voltage monitor circuit prohibits error writing during power surge or abnormal voltage.

• IC protection circuit for head-to-ground short circuit protection.

• Differential input capacitance at Read: 14 pF (typ.).

• Write data input minimum pulse width: 10 ns

• Read data output in Write mode becomes a high impedance due to the improved Read data offset when Write is switched to Read.

• Non-selected head DC voltage falls to GND level.