NRF9E5 NORDIC SEMICONDUCTOR, NRF9E5 Datasheet - Page 18

• 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
7 ANALOG INTERFACE
7.1
Tolerance includes initially accuracy and tolerance over temperature and aging.
To achieve a crystal oscillator solution with low power consumption and fast start-up
time, it is recommended to specify the crystal with a low value of crystal load
capacitance. Specifying a lower value of crystal parallel equivalent capacitance,
Co=1.5pF is also good, but this can increase the price of the crystal itself. Typically
Co=1.5pF at a crystal specified for Co_max=7.0pF.
The crystal load capacitance, C
C
C
into the XC1 and XC2 pin respectively; the value is typical 1pF.
7.2
The “ANT1 & ANT2” output pins provide a balanced RF output to the antenna. The
pins must have a DC path to VDD_PA, either via a RF choke or via the center point in a
dipole antenna. The load impedance seen between the ANT1/ANT2 outputs should be in
the range 200-700 . The optimum differential load impedance at the antenna ports is
given as:
A low load impedance (for instance 50 ) can be obtained by fitting a simple matching
network or a RF transformer (balun). Further information regarding balun structures and
matching networks may be found in the Application Examples chapter.
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone [phone] - Fax [phone]
Revision: 1.3
1
PCB2
and C
Frequency
Crystal Specification
Antenna Output
are the layout parasitic on the circuit board. C
12MHz
16MHz
20MHz
4MHz
8MHz
2
are 0603 SMD capacitors as shown in the application schematics. C
C
L
900MHz
430MHz
C
C
1
1
'
'
8pF – 16pF
8pF – 16pF
8pF – 16pF
8pF – 16pF
8pF – 16pF
C
C
2
2
Table 13 Crystal specification of nRF9E5.
'
'
C
,
L
where
225 +j210
300 +j100
L
, is given by:
C
1
'
150
100
100
100
100
ESR
Page 18 of 108
C
1
C
PCB
1
7.0pF
7.0pF
7.0pF
7.0pF
7.0pF
C
C
0max
I
1
I1
and
and C
C
2
'
868/915 MHz
I2
Tolerance @
C
are the capacitance seen
2
30ppm
30ppm
30ppm
30ppm
30ppm
C
PCB
2
C
Tolerance @
I
2
433 MHz
60ppm
60ppm
60ppm
60ppm
60ppm
PCB1
June 2006
and