NRF9E5 NORDIC SEMICONDUCTOR, NRF9E5 Datasheet - Page 28

• Manufacturer Part Number: NRF9E5
• Description: TRX, 430-928MHZ, MCU/ADC/PWM, SMD
• Manufacturer: NORDIC SEMICONDUCTOR

Specifications of NRF9E5

• Receiving Current: 12.5mA
• Transmitting Current: 30mA
• Data Rate: 50Kbps
• Frequency Range: 430MHz To 928MHz
• Modulation Type: GFSK
• Rf Ic Case Style: QFN
• No. Of Pins: 32
• Supply Voltage Range: 1.9V To
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PRODUCT SPECIFICATION
nRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADC
9.6
The operating RF-frequency of nRF905 is set in the configuration register by CH_NO
and HFREQ_PLL. The operating frequency is given by:
When HFREQ_PLL is ‘0’ the frequency resolution is 100kHz and when it is ‘1’ the
resolution is 200kHz.
The application operating frequency has to be chosen to apply with the Short Range
Devise regulation in the area of operation.
9.7
When the nRF905 is in ShockBurst
RF carrier is present at the channel the device is programmed to. This feature is very
effective to avoid collision of packets from different transmitters operating at the same
frequency. Whenever a device is ready to transmit it could first be set into receive mode
and sense whether or not the wanted channel is available for outgoing data. This forms a
very simple listen before transmit protocol. Operating Carrier Detect (CD) with Reduced
RX Power mode is an extremely power efficient RF system. Typical Carrier Detect level
(CD) is typically 5dB lower than sensitivity, i.e. if sensitivity is –100dBm then the
Carrier Detect function will sense a carrier wave as low as –105dBm. Below –105dBm
the Carrier Detect signal will be low, i.e. 0V. Above –95dBm the Carrier Detect signal
will be high, i.e. Vdd. Between approximately -95 to -105 the Carrier Detect Signal will
toggle.
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone [phone] - Fax [phone]
Revision: 1.3
Output Frequency
Carrier Detect.
Operating frequency
430.0 MHz
433.1 MHz
433.2 MHz
434.7 MHz
862.0 MHz
868.2 MHz
868.4 MHz
869.8 MHz
902.2 MHz
902.4 MHz
927.8 MHz
f
OP
Table 18 Examples of real operating frequencies.
(
422
4 .
(
CH
_
HFREQ_PLL
TM
NO
Page 28 of 108
RX, the Carrier Detect (CD) pin is set high if a
[0]
[0]
[0]
[0]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
/
10
))
1 (
HFREQ
[001001100]
[001101011]
[001101100]
[001111011]
[001010110]
[001110101]
[001110110]
[001111101]
[100011111]
[100100000]
[110011111]
CH_NO
_
PLL
)
MHz
June 2006