Cy800 300MHz ~ 450MHz Sop-8 Integrated Circuit Wireless RF Receiver IC Chip

• Conductive Type: Unipolar Integrated Circuit
• Integration: GSI
• Shape: DIP
• Frequency: 300MHz ~ 450MHz
• Sensitivity: -107dBm
• Data Rate: up to 10kbps
• Model NO.: CY800
• Current: 3~4.8mA
• Voltage: 3.0~5.5V
• Ambient Temperature: -30° C to 85° C
• Packaging: Sop-16
• Lead Time: 3 Weeks After Receiving Payment
• Ship by: DHL/FedEx/UPS
• MOQ: 100PCS
• Transport Package: Reel
• Trademark: CY
• Origin: China
• HS Code: 8542399000
• Production Capacity: 200000PCS/Year

Product Description

General Description

The CY800 is a single chip ASK/OOK (ON-OFF Keyed) RF receiver IC. This device is a true "antenna-in to data-out" monolithic device. All RF and IF tuning are accomplished automatically within the IC which eliminates manual tuning and reduces production costs. The result is a highly reliable yet low cost solution.
 
The CY800 is a fully featured part packaged in 8-pin packaging with a reduced feature set. 

The CY800 provides two additional functions, (1) a Shutdown pin, which may be used to turn the device off for duty-cycled operation, and (2) a "Wake-up" output, which provides an output flag indicating when an RF signal is present. These features make the CY800 ideal for low and ultra-low power applications, such as RKE and remote controls. 

All IF filtering and post-detection (demodulator) data filtering is provided within the CY800, so no external filters are necessary. One of four demodulator filter bandwidths may be selected externally by the user. 

The CY800 offer fixed-mode (FIX) operation. In fixed mode the CY801 functions as a conventional super-heterodyne receiver, and fixed-mode provides better selectivity and sensitivity performance.

 

Features

1. 300MHz to 450MHz frequency range 
2. High receiver sensitivity: -106dBm (315MHz), -107dBm (433MHz)
3. Data-rate up to 10kbps 
4. Low Power Consumption 
5. 3.0mA fully operational (315MHz) 
6. 0.9µA in shutdown 
7. 250µA in polled operation (10:1 duty-cycle) 
8. Wake-up output flag to enable decoders and microprocessors 
9. Very low RF re-radiation at the antenna
10. Highly integrated with extremely low external part count

Applications

1. Automotive Remote Keyless Entry (RKE)
2. Remote controls
3. Remote fan and light control
4. Garage door and gate openers

 

Pin Configuration

Pin Description

Pin Number 8-Pin Pkg.	Pin Name	Pin Function
1	VSSRF	RF Power Supply: Ground return to the RF section power supply.
2	ANT	Antenna (Analog Input): For optional performance the ANT pin should be impedance matched to the antenna. See "Applications Information" for information on input impedance and matching techniques.
3	VDDRF	RF Power Supply: Positive supply input for the RF section of the IC.
4	CTH	Data slicing threshold capacitor (Analog I/O): capacitor connected to this pin extracts the dc average value from the demodulated waveform which becomes the reference for the internal data slicing comparator.
5	DO	Data Output ( Digital Output)
6	SHUT	Shutdown (Digital Input): Shutdown-mode logic-level control input. Pull low to enable the receiver. Internally pulled-up to VDDRF
7	CAGC	Automatic Gain Control (Analog I/O): Connect an external capacitor to set the attack/ decay rate of the on-chip automatic gain control.
8	RFFOSC	Reference Oscillator: Timing reference, sets the RF receive frequency.

Typical Application