SM1211E915 Semtech, SM1211E915 Datasheet - Page 59

• Manufacturer Part Number: SM1211E915
• Description: Dev Kit Accessory
• Manufacturer: Semtech

Specifications of SM1211E915

• Modulation Type: FSK, OOK
• Data Rate Max: 200Kbps
• Frequency Range: 902MHz To 928MHz
• Supply Voltage Range: 2.1V To 3.6V
• Module Interface: SPI
• Supply Current: 25mA
• Accessory Type: RF Module
• Sensitivity: -105dBm
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: TQFN EP
• Operating Supply Voltage (min): 2.1V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Sensitivity (dbm): -105dBm
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

Rev 7 – Sept 2
ADVANCED COMMUNICATIONS & SENSING
Data_mode_1
IF_gain
Freq_dev
Res
BR
OOK_
floor_thresh
Fifo_size
Fifo_thresh
R1
P1
S1
R2
P2
S2
Res
PA_ramp
Res
nd
, 2008
2
1-0
7-0
7
6-0
7-0
7:6
5-0
7-0
7-0
7-0
7-0
7-0
7-0
7-5
4-3
2-0
1
1
2
3
3
4
5
5
6
7
8
9
10
11
12
12
12
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Data operation mode’s MSB. Cf. Data_mode_0 (Bit 5 Addr 1)
Gain on the IF chain:
00
01
10
11
Single side frequency deviation in FSK Transmit mode:
Refer to sections 3.3.4 and 3.3.5
Fdev =
(d): D = “00000011” => Fdev = 100 kHz
Reserved
(d): “0”
Bit Rate =
(d): C = “0000111” => Bit Rate = 25 kb/s NRZ
Floor threshold in OOK Rx mode. By default 6 dB.
(d): “00001100” assuming 0.5 dB RSSI step
FIFO size selection:
00
01
10
11
FIFO threshold for interrupt source (Cf section 5.2.2.3)
(d): B = “001111”
R counter, active when RPS_select=”0”
(d):77h; default values of R1, P1, S1 generate 915.0 MHz in FSK mode
P counter, active when RPS_select=”0”
(d): 64h; default values of R1, P1, S1 generate 915.0 MHz in FSK mode
S counter, active when RPS_select=”0”
(d): 32h; default values of R1, P1, S1 generate 915.0 MHz in FSK mode
R counter, active when RPS_select=”1”
(d): 74h; default values of R2, P2, S2 generate 920.0 MHz in FSK mode
P counter, active when RPS_select=”1”
(d): 62h; default values of R2, P2, S2 generate 920.0 MHz in FSK mode
S counter, active when RPS_select=”1”
(d): 32h; default values of R2, P2, S2 generate 920.0 MHz in FSK mode
Reserved
(d): “001”
Ramp control of the rise and fall times of the Tx PA regulator output voltage in
OOK mode:
00
01
10
11
Reserved
(d):”000”
Data_mode_1
Bit 2 addr 1
maximal gain (0dB) (d)
-4.5 dB
-9dB
-13.5 dB
16 bytes (d)
32 bytes
48 bytes
64 bytes
3us
8.5 us
15 us
23 us (d)
32
0
0
1
Page 59 of 92
64
f
(D
XTAL
f
XTAL
(C
1)
Data_mode_0
Bit 5 addr 1
, 0 ≤ D ≤ 255, where D is the value in the register.
1)
, 0 ≤ C ≤ 127, where C is the value in the register.
0
1
x
Data Operation
Mode
Continuous (d)
Buffered
Packet
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