NRF9E5 NORDIC SEMICONDUCTOR, NRF9E5 Datasheet - Page 42

• 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
12 TRANSCEIVER SUBSYSTEM TIMING
The following timing must be obeyed during nRF905 operation.
12.1 Device Switching Times
Notes to table:
12.2 ShockBurst
After a data packet has finished transmitting the device will automatically enter Standby
mode and wait for the next pulse of TRX_CE. If the Auto Re-Transmit function is
enabled the data packet will continue re-sending the same data packet until TRX_CE is
set low.
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone [phone] - Fax [phone]
Revision: 1.3
P W R _ U P
T R X _ C E
T X D A T A
T X _ E N
M O S I
T IM E
C S N
1)
RX to TX or TX to RX switching is available without re-programming of the RF
configuration register. The same frequency channel is maintained.
C o n fig u r a tio n R e g is te r
a n d T X D a ta R e g is te r
STBY
STBY
RX ShockBurst™
TX ShockBurst™
P r o g r a m m in g o f
TM
Figure 13 Timing diagram for standby to transmit.
TX Timing
Table 32 Switching times for nRF905.
TX ShockBurst™
RX ShockBurst™
T 0 = R a d io E n a b le d
T 1 = T 0 + 1 0 u S M in im u m T R X _ C E p u ls e
T 2 = T 0 + 6 5 0 u S .S ta r t o f T X D a ta tr a n s m is s io n
T 3 = E n d o f D a ta P a c k e t , e n te r S ta n d b y m o d e
nRF905 timing
RX ShockBurst™
TX ShockBurst™
Page 42 of 108
T 0
T 1
T 2
T r a n s m itte d D a ta 1 0 0 k b p s
M a n c h e s te r E n c o d e d
550
550
650 s
650 s
Max.
1
1
s
s
T 3
June 2006