MICRF219AAYQS(2011) データシートの表示（PDF） - Micrel

部品番号

コンポーネント説明

メーカー

MICRF219AAYQS
(Rev.:2011)

300MHz to 450MHz ASK/OOK Receiver with Auto-Poll, RSSI, and Squelch

Micrel 

Micrel, Inc.

MICRF219A

Pin Description (Continued)

Pin

Number

12

13

14

15

16

Pin

Name

CTH

CAGC

RSSI

SCLK

RO2

Pin Function

Demodulation Threshold Voltage Integration Capacitor. Connect a 0.1μF capacitor from CTH pin to GND

to provide a stable slicing threshold.

AGC Filter Capacitor. Connect a capacitor from this pin to GND. Refer to the AGC Loop and CAGC

section for information on the capacitor value.

Received Signal Strength Indicator. The voltage on this pin is an inversed amplified version of the voltage

on CAGC. Output is from a switched capacitor integrating op amp with 250Ω typical output impedance.

Programming clock input.

Reference resonator connection to the Pierce oscillator. Internal capacitance of 7pF to GND during normal

operation.

July 2011

3

M9999-071811-A

RadioTech@micrel.com or (408) 944-0800

Share Link: