CXA1915AN 查看數據表（PDF） - Sony Semiconductor

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CXA1915AN

I-V Photo IC for MiniDisc

Sony Semiconductor 

CXA1915AN

Notes on Operation

1. Connection to RF amplifiers

In the CXA1915AN, the RF signals (I, J) are of the voltage-output type. Therefore, the RF amplifier should

have an I-V amplifier at the input block because the servo signals (A to F) are of current-output type.

2. Power supply

The CXA1915AN can be used either with a dual positive/negative power supply or with a single power

supply. However, this IC is not provided with a center voltage generating circuit, and so when used with a

single power supply the center voltage must be supplied by an RF amplifier or some other device.

Power supply connections for each case are as follows.

Dual positive/

negative power supply

(12) VCC

Positive power supply

(3) (9) GND

(1) VC

Negative power supply GND

Single power supply Positive power supply GND

Center voltage

Note) Pins 3 and 9 are shorted in the IC.

For both a dual positive/negative power supply and a single power supply, the voltage difference between

the Vcc and GND pins should be within the range of 2.5 V and 5.5 V.

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