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MICRF008, MICRF008YM, MICRF009

Table of contents:
Info of MICRF008
Info of MICRF008YM
Info of MICRF009

MICRF008, MICRF008YM, MICRF009 Selling Leads, Datasheet

MFG:Micrel Inc Category:RF and RFID Package Cooled:SOP-8 D/C:03+

MICRF008, MICRF008YM, MICRF009 Datasheet download

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Part Number: MICRF008YM

Category: RF and RFID

MFG: Micrel Inc

Package Cooled: SOP-8

D/C: 03+

Description: IC RECEIVER 300-440MHZ 8-SOIC

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MICRF008 Parameters

MICRF008 Features

Complete UHF receiver on a monolithic chip
300MHz to 440MHz frequency range
Up to 4.8kbps data rate.
Automatic tuning, no manual adjustment
Very low RF antenna reradiation
CMOS logic interface for standard ICs
Low external part count
Replaces superregenerative receivers design
Manufacturability and same performance over the years
Very small PCB area required

MICRF008 General Description

QwikRadio™ Sweep-Mode Receiver

MICRF008 Maximum Ratings

Supply Voltage (VDDRF, VDDBB) .......................................+7V
Reference Oscillator Input Voltage (VREFOSC) ............ . VDDBB
Input/Output Voltage (VI/O) ................. .VSS0.3 to VDD+0.3
Junction Temperature (TJ) ........................................ +150°C
Storage Temperature Range (TS) ............ 65°C to +150°C
Lead Temperature (soldering, 10 sec.) ................... ...+260°C

MICRF008 Features

Complete UHF receiver on a monolithic chip
300MHz to 440MHz frequency range
Up to 4.8kbps data rate.
Automatic tuning, no manual adjustment
Very low RF antenna reradiation
CMOS logic interface for standard ICs
Low external part count
Replaces superregenerative receivers design
Manufacturability and same performance over the years
Very small PCB area required

MICRF008 Typical Application

MICRF008 Datasheet

MICRF008 Connection Diagram

Pin Number	Pin Name	Pin Function
1	SEL0	Bandwidth Selection Bit 0 (Input): Sets the desired demodulator filter bandwidth. See Table 1. Internally pulled-up to VDD.
2	ANT	Antenna (Input): High-impedance, internally AC-coupled receiver input. Connect this pin to the matching network. See "Applications Information" for optional band-pass filter information.
3	VDD	Positive Supply Input: Connect a low ESL, low ESR decoupling capacitor from this pin to VSS, as short as possible.
4	CTH	[Data Slicing] Threshold Capacitor (External Component): Capacitor extracts the DC average value from the demodulated waveform which becomes the reference for the internal data slicing comparator. See "Applications Information" for selection.
5	DO	Digital Output (Output): CMOS-level compatible data output signal.
6	VSS	Negative Supply Input: Connect this pin to the RF ground.
7	CAGC	AGC Capacitor (External Component): Integrating capacitor for on-chip AGC (automatic gain control). The decay/attack time-constant () ratio is nominally 10:1. See "Applications Information" for capacitor selection.
8	REFOSC	Reference Oscillator (External Component or Input): Timing reference for on-chip tuning and alignment. Connect either a ceramic resonator or a crystal between this pin and VSS, or drive the input with an AC-coupled 0.5VPP input clock.

MICRF008YM Parameters

Technical/Catalog Information	MICRF008YM
Vendor	Micrel Inc
Category	RF and RFID
Applications	Garage Openers
Current - Receiving	7mA
Features	Automatic Tuning
Data Rate - Maximum	4.8 kbps
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC
Packaging	Tube
Sensitivity	-95dBm
Modulation or Protocol	OOK
Voltage - Supply	4.75 V ~ 5.5 V
Frequency	300MHz ~ 440MHz
Memory Size	-
Data Interface	PCB, Surface Mount
Antenna Connector	PCB, Surface Mount
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	MICRF008YM MICRF008YM 576 1961 5 ND 57619615ND 576-1961-5

MICRF009 General Description

The MICRF009 is a single chip, ASK/OOK (ON-OFF Keyed) RF receiver IC. It provides the same function but with performance enhancements over earlier QwikRadio® receivers. Two key improvements are: higher sensitivity (typically 6dB higher than the MICRF002) and faster recovery from shutdown (typically 1ms). Just like all other members of the QwikRadio® family, the MICRF009 achieves low power operation, a very high level of integration, and it is particularly easy to use.

All post-detection (demodulator) data filtering is provided on the MICRF009, so no external baseband filters are required. One of two filter bandwidths may be selected externally by the user. The user only needs to program the appropriate filter selection based on the data rate and code modulation format.

The MICRF009 offer two modes of operation; fixed-mode (FIX) and sweep-mode (SWP). In fixed-mode the MICRF009 functions as a conventional superheterodyne receiver. In sweep-mode the MICRF009 employs a patented sweeping function to sweep a wider RF spectrum. Fixed-mode provides better selectivity and sensitivity performance while sweep mode enables the MICRF009 to be used with low-cost, imprecise transmitters.

Data sheets and support documentation can be found on Micrel's web site at www.micrel.com.

MICRF009 Maximum Ratings

Supply Voltage (V_DDRF, V_DDBB)........................................+7V
Input/Output Voltage (V_I/O)..................V_SS0.3 to V_DD+0.3
Max. Input Power.....................................................+20dBm
Junction Temperature (T_J)........................................+150°C
Storage Temperature Range (T_S)...........65°C to +150°C
Lead Temperature (soldering, 10 sec.)....................+260°C
ESD Rating..................................................................Note 3

MICRF009 Features

• High sensitivity (104dBm)
• Fast recovery from shutdown (1ms)
• 300MHz to 440MHz frequency range
• Data-rate up to 2.0kbps (fixed-mode, Manchester encoding)
• Low power consumption
2.9mA fully operational (315MHz)
0.15A in shutdown
290A in polled mode (10:1 duty-cycle)
• Shutdown input
• Automatic tuning, no manual adjustment
• Very low RF re-radiation at the antenna
• Highly integrated with extremely low external part count
• 1ms time to good data

MICRF009 Typical Application

• Automotive remote keyless entry (RKE)
• Long range RF identification
• Remote fan and light control
• Garage door and gate openers

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