NRF402 Datasheet, PDF (2/16 Pages) List of Unclassifed Manufacturers – 433MHz Single Chip RF Transmitter

PRODUCT SPECIFICATION
nRF402 Single Chip RF Transmitter
BLOCK DIAGRAM
CS
7
DIN
9
PWR_UP
13
OSC
PLL
1
14
REFERENCE
LOOP
FILTER
6
LPF
VCO
4
5
VCO
INDUCTOR
PA
8
11 _ANT1
10 ^ANT2
RF_PWR
Figure 1. nRF402 block diagram with external components
PIN FUNCTIONS
Pin Name
Pin function
1 XC1
2 VSS
3 VDD
4 VCO1
5 VCO2
6 LPF
7 CS
Input
Ground
Power
Input
Input
Test
Input
8 RF_PWR
9 DIN
10 ANT2
11 ANT1
12 VSS
13 PWR_UP
Input
Input
Output
Output
Ground
Input
14 XC2
Output
Description
Crystal oscillator input
Ground (0V)
Power supply (+3V DC)
External inductor for VCO
External inductor for VCO
Loop filter voltage test pin *
Channel selection
CS=“0” ⇒ 433.92MHz, (Channel#1)
CS=“1” ⇒ 434.33MHz, (Channel#2)
Transmit power setting
Data input
Antenna terminal
Antenna terminal
Ground (0V)
Power on/off
PWR_UP = “1” ⇒ Power up (Transmit mode)
PWR_UP = “0” ⇒ Power down (Standby mode)
Crystal oscillator output
Table 3. nRF402 pin functions
*) This pin is only for test purposes and is intended for use when measuring the loop filter voltage.
Nordic VLSI ASA
Revision: 2.1
Vestre Rosten 81, N-7075 Tiller, Norway -
Page 2 of 16
Phone [phone] -
Fax [phone]
February 2000