CXA3304N 查看數據表（PDF） - Sony Semiconductor

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CXA3304N

IF IC for ETC

Sony Semiconductor 

CXA3304N

Pin

Symbol

No.

7 HOLD CAP

8 GND

9 VCC

11 VREF

12 RSSI PEAK

13 PEAK HOLD

14 POWER SAVE

Pin

voltage

Equivalent circuit

124

—

7

—

—

—

124

11

124

12

—

—

13

20k

14 (28k)

—

80k

(120k)

Description

VCC

Connects the external capacitor

which determines the peak hold

time constant.

The bias current of the internal

buffer circuit flows even in hold

mode.

GND

Ground.

VCC.

VCC

Input of voltage which is the

threshold value of the carrier

sense comparator.

RSSI peak voltage output.

This is also connected to the

input pin for the carrier sense

GND comparator.

VCC

Peak hold circuit control.

Peak hold for low;

reset operation for high.

Power saving control.

Sleep mode for low;

IC operation for high.

GND

VCC

15 XIF IN

16 IF IN

15

0V

16

1.5k

1.5k

IF signal input.

It is input with DC coupled.

Input the IF signal via a

matching circuit.

GND

—4—

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