MICRF219 datasheet(11/24 Pages) MICREL

部件名	MICRF219

功能描述	300MHz to 450MHz ASK Receiver with RSSI, Auto-Poll, Bit-Check and Squelch

PDF	24 Pages

Scroll/Zoom	100%

制造商	MICREL [Micrel Semiconductor]

网页	http://www.micrel.com

标志

11 / 24 page

Micrel

MICRF219

January 2009

M9999-011509

(408) 944-0800

lect

D16

MODE: Demod BW Se

Normal Demod BW’s - default

vailable)

F t Demod BW’s, (not a

SQ Pin

ch Enable

MODE: Squel

quelch Circuit Enabled

it Disabled

Squelch Circu

Squelch Circuit Disabled

(default)

Squelch Circuit Enabled

The external pin SQ can invert the setting of squelch

on/off defined by register bit D17. The external pin

hig

-up so the squelch is

off w

if D17 = 1. Such bit

logic

o low (Ground).

D18

MODE: Bit-Check

out

def lts

h v

an internal pull

ith default D17 = 0 and on

is reversed if SQ pin is tied t

Watchdog Time

Sleep polling watchdog active - d

Watchdog time

efault

for D3, D4, BW setting

20ms

5ms

10ms

5ms

Sleep polling watchdog disabled - unlimited

poll period

DE: RSSI

D19

RSSI offset 0mV

- default

RSSI offset +200mV

D19

MODE: Fast AGC Settling Disable

All improved fast attack AGC and CTH

hold circuits are enabled - default

Fast attack and CTH hold operation is

disabled

MICRF219 数据表(PDF) 11 Page - Micrel Semiconductor

MICRF219 数据表(HTML) 11 Page - Micrel Semiconductor

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