Product Summary

The U2741B-NFBG3Y is a PLL transmitter IC which has been especially developed for the demands of RF low-cost data transmission systems at data rates up to 20 kBaud. The transmitting frequency range is 300 MHz to 450 MHz. The U2741B-NFBG3Y can be used in both FSK and ASK systems.

Parametrics

U2741B-NFBG3Y absolute maximum ratings: (1)Supply voltage VS: 6 V; (2)Power dissipation Ptot: 250 mW; (3)Junction temperature Tj: 150 ℃; (4)Storage temperature Tstg: -55 125 ℃; (5)Ambient temperature Tamb: -40 105 ℃; (6)Supply current (power down)VASK, VFSK ≤ 0.3V, VS < 3.6V ISoff: 0.35 μA.

Features

U2741B-NFBG3Y features: (1)Very High Transmitting Frequency Accuracy Compared to SAW Solutions (Enables Receivers at Lower Bandwidth than with SAW Resonators); (2)Lower Cost than the Usual Discrete Solutions Using SAW and Transistors; (3)Supply Voltage 2.0V to 5.5V in the Temperature Range –20℃ to +70℃, Supply Voltage 2.2 V to 5.5 V in the Temperature Range –40℃ to +85℃; (4)XTO Output for Clocking the Microcontroller, Thereby Together with the ATAR090 or ATAR890 Results in the Optimum System Cost-effectiveness; (5)One-chip Solution with Minimum External Circuitry; (6)Very Small SSO16 Package, Pitch 0.635, 150 mil; (7)Single-ended Open-collector Output (Same Antennas as in Discrete Solutions Can Be Used, Simpler Adaptation of Magnetic Loop Antennas); (8)Very Large FSK Frequency Deviation Achievable by ±100 ppm Pulling of the Reference Crystal; (9)Enables Receivers at Lower Bandwidth than with SAW Resonators; (10)ESD Protection According to MIL-STD.883 (4 KV HBM)Except Pins XTO1/ 2, ANT and LF.

Diagrams

U2741B-NFBG3Y pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
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U2741B-NFBG3Y
U2741B-NFBG3Y

Atmel

RF Transmitter ASK/FSK Remote Control 433 MHz

Data Sheet

Negotiable 
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
U274
U274

Apem

Switch Hardware Switch Hardware

Data Sheet

0-1: $0.66
1-25: $0.61
25-100: $0.56
100-500: $0.50
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