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參數(shù)資料
| 型號(hào)： | U2745B-MFBG3 |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類(lèi)： | 通信及網(wǎng)絡(luò) |
| 英文描述： | UHF ASK TRANSMITTER |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO16 |
| 封裝： | SSO-16 |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 188K |
| 代理商： | U2745B-MFBG3 |
Rev. 4734A–RKE–11/03
Features
Very High Transmitting Frequency Accuracy Compared to SAW Solutions
(Enables Receivers at Lower Bandwidth than with SAW Resonators)
Lower Cost than the Usual Discrete Solutions Using SAW and Transistors
Supply Voltage 2.2 V to 4.0 V in the Temperature Range of -40 C to 85 C
XTO Output for Clocking the Microcontroller, Thereby Together with the ATAR090 or
ATAR890 Results in the Optimum System Cost-effectiveness
One-chip Solution with Minimum External Circuitry
Very Small SSO16 Package, Pitch 0.635, 150 mil
“Single-ended Open-collector” Output (Same Antennas Can Be Used as in Discrete
Solutions, Simpler Adaptation of Magnetic Loop Antennas)
ESD Protection According to MIL-STD.883 (4 KV HBM) Except Pins XTO1/ 2,
ANT and LF
Electrostatic sensitive device.
Observe precautions for handling.
Description
The U2745B 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 310 MHz to 440 MHz. It can be used in ASK sys-
tems. The main applications of the U2745B are in the areas of outside temperature
metering, socket control, garage door opener, consumption metering, light/fan or air-
condition control, jalousies, wireless keyboard and various other consumer market
applications.
UHF ASK
Transmitter
U2745B
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