BC2102 Datasheet, PDF (10/15 Pages) Holtek Semiconductor Inc – Sub-1GHz OOK/FSK Transmitter

BC2102
CFG1: Configuration Control Register 1
Address
Bit
7
6
5
4
Name
DLY_TOFF[3:0]
01h
R/W
R/W
Initial Value
1
1
1
0
3
2
1
0
Setting1
R/W
R/W
0
0
0
1
Bit 7~4
Bit 3~0
DLY_TOFF[3:0]: Transmitter Auto Power Off Delay Time
t = 2ms×(DLY_TOFF[3:0]+2)
0000: 4ms
0001: 6ms
0010: 8ms
:
1110: 32ms
1111: Infinite – Never enter the Deep Sleep Mode
Setting1: Must be [0b0001]
CFG2: Configuration Control Register 2
Address
Bit
7
6
5
4
3
2
1
0
Name
FDEV[7:0]
02h
R/W
R/W
Initial Value
0
1
1
0
0
1
1
0
Bit 7~0
FDEV[7:0]: Frequency deviation for FSK
When External Crystal = 24MHz, FDEV = (f_dev × 2¹⁴ / Fxtal); Fxtal=12MHz
When External Crystal = 16MHz, FDEV = (f_dev × 2¹⁵ / Fxtal); Fxtal=16MHz
Examples are as follows:
Default FDEV[7:0]=01100110 → Decimal 102
External Crystal = 16MHz
f_dev (Frequency deviation) = FDEV × (16M / 2¹⁵ )
f_dev (Frequency deviation) = 102 × (16M / 32768) = 49.8kHz
CFG3: Configuration Control Register 3
Address
Bit
7
6
5
4
3
2
1
0
Name FSK_SEL
Setting2
TXPWR[3:0]
03h
R/W
R/W
R/W
R/W
Initial Value
0
1
0
0
1
0
0
0
Bit 7
Bit 6~4
Bit 3~0
FSK_SEL: FSK Mode Enable
0: OOK
1: FSK
Setting 2: Must be [0b100]
TXPWR[3:0]: RF Output Power
The device has several output power values which are 0, 5, 10, and 13 dBm for all temperatures.
TXPWR[3:0]
0000
0100
RF Output Power
0dBm
5dBm
TXPWR[3:0]
1000
1100
RF Output Power
10dBm
13dBm
Rev. 1.00
10
December 21, 2016