參數(shù)資料
型號: NRF902
廠商: Electronic Theatre Controls, Inc.
英文描述: Single chip 868 MHz Transmitter
中文描述: 單芯片868兆赫發(fā)射機
文件頁數(shù): 2/13頁
文件大小: 160K
代理商: NRF902
PRELIMINARY PRODUCT SPECIFICATION
nRF902 Single chip 868 MHz Transmitter
Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900 - Fax +4772898989
Revision: 1.0
Page 2 of 13
April 2000
BLOCK DIAGRAM
R E X T
Crystal
Oscillator
xtal
F S K
ant1
Frequency synthesizer
Power
A m p lifier
Phase
Detector
V C O
Loop
Filter
Prescaler
1/64
ant2
1/8
Clock
Divider
X O 8
Figure 1. nRF902 block diagram
PIN FUNCTIONS
Pin
Name
Pin function
Description
1
2
3
4
5
6
7
8
xtal
REXT
XO8
VDD
FSK
ant2
ant1
VSS
Input
Input
Output
Input
Input
Power/Output
Power/Output
Power
Crystal pin / Power Up
Power adjust / Clock Mode / ASK modulation digital input
Reference Clock Output (Crystal Frequency / 8)
Positive Supply (2.4 - 3.6V)
Digital Data Input
Antenna output 1
Antenna output 2
Ground (0V)
Table 2. nRF902 pin functions
PIN ASSIGNMENT
FSK
VSS
7
6
5
8
ant2
ant1
xtal
REXT
XO8
VDD
1
2
3
4
nRF902
Figure 2. nRF902 pin assignment
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