Product Summary

The CH1228 is a true single-chip UHF transceiver designed for very low power and very low voltage wireless applications. The circuit is mainly intended for the ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency bands at 315, 433, 868 and 915 MHz, but can easily be programmed for operation at other frequencies in the 300-1000 MHz range.

Parametrics

CH1228 absolute maximum ratings: (1)Supply voltage, VDD: -0.3 to 5.0 V; (2)Voltage on any pin: -0.3 to VDD+0.3, max 5.0 V; (3)Input RF level: 10 dBm; (4)Storage temperature range (TSSOP): -50℃ to 150℃; (5)Shelf life (UltraCSP): 1 year; (6)Reflow soldering temperature (TSSOP): 260℃; (7)Peak reflow soldering temperature (UltraCSP): 255℃.

Features

CH1228 features: (1)True single chip UHF RF transceiver; (2)Very low current consumption; (3)Frequency range 300 to 1000 MHz Integrated bit synchroniser; (4)High sensitivity (typical -110 dBm at 2.4 kBaud); (5)Programmable output power -20 to 10 dBm; (6)Small size (TSSOP-28 or UltraCSP package); (7)Low supply voltage (2.1 V to 3.6 V); (8)Very few external components required.

Diagrams

CH1228 block diagram

CH1206-100UFP
CH1206-100UFP
Vishay/Sfernice
High Frequency/RF Resistors 330mWatt 100ohms 1% Hyper Frequency
Data Sheet
Negotiable 
CH127-1
CH127-1
Cooper Bussmann
Fuseholders, Clips, & Hardware F/H 22MMX127MM 1POLE
Data Sheet
0-1: $69.51
1-5: $66.35
5-10: $63.19
10-25: $60.03
CH127-2
CH127-2
Cooper Bussmann
Fuseholders, Clips, & Hardware F/H 22MMX127MM 2POLE
Data Sheet
0-1: $102.36
1-5: $97.72
5-10: $93.06
10-25: $88.40
CH127-3
CH127-3
Cooper Bussmann
Fuseholders, Clips, & Hardware F/H 22MMX127MM 3POLE
Data Sheet
0-1: $138.82
1-5: $132.52
5-10: $126.20
10-25: $119.89