CXB1581Q 查看數據表（PDF） - Sony Semiconductor

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CXB1581Q

Fibre Channel Transmitter

Sony Semiconductor 

CXB1581Q

Pin

No.

Symbol

Type

Typical pin

I/O voltage

Equivalent circuit

VCCG

48 LDALM

TTL

input

TTL lebel

LDALM

VEET

Description

Laser diode alarm

signal input. FAULT

output goes to high

level at the rising

edge of this signal.

(See Table 3.)

VEET

VCCG

52 CLR∗

TTL TTL high

input level or 3.3V

CLR∗

VEET

53,

54

VCCP

Power

supply

3.3V

External

55 REXT

part

connection

—

pin

56,

57

VEEP1

Power

supply

0V

58 VEEP2

Power

supply

0V

Internal counter clear.

Setting this signal to

low level clears the

internal counter.

VEET

Positive power

—

supplies for internal

PLL.

VCCP

REXT

VEEP2

Connects the

resistor which

determines the VCO

center frequency.

Connect a 4.7kΩ

resistor between this

pin and VEEP1. (See

Notes on Operation

and Fig. 1.)

Negative power

—

supplies for internal

PLL.

Negative power

—

supply for internal

PLL.

–9–

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