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PDF SH38300 Data sheet ( Hoja de datos )
| Número de pieza | SH38300 | |
| Descripción | 2.4GHz GFSK Transceiver | |
| Fabricantes | SINO WEALTH | |
| Logotipo |  |
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Preliminary
SH38300/SH38301
2.4GHz GFSK Transceiver
General Description
SH38300/38301 is a monolithic CMOS integrated circuit for wireless applications in 2.4GHz ISM band. The device is
provided in a 32-lead plastic QFN5X5 packaging and is designed as a complete GFSK transceiver up to 3Mbps/ 1Mbps data
rate. The chip features a fully programmable frequency synthesizer with integrated VCO circuitry.
Typical Applications
Wireless digital audio
Wireless Mouse and Keyboard
2.4GHz ISM Band Communication System
Wireless game pad
Wireless toy
1/22 V1.2
1 page  
SH38300/SH38001
Parameter
Digital IO DC characteristics
High Level Input Voltage (VIH)
Low Level Input Voltage (VIL)
High Level Output Voltage (VOH)
Low Level Output Voltage (VOL)
Description
@IOH= -0.5mA
@IOL= 0.5mA
Minimum Typical Maximum
0.8*VDD
0
VDD-0.4
0
VDD
0.2*VDD
VDD
0.4
Unit
V
V
V
V
Note:
1.
2.
Data rate= 1Mbps @1M Mode, Data rate= 3Mbps @3M Mode. SH38301 operates at 1M Mode only.
With external RF filter that provides minimum 17dB of attenuation in the band: 30MHz ~ 2GHz and 3GHz
~12.75GHz.
5/22 V1.2
5 Page 
SH38300/SH38001
4. CAL State:
There are five sub-states in the CAL (Calibration) state: IFCAL (IF filter calibration), DFCAL (Data filter calibration),
DEMCAL (Demodulator calibration), RHCAL (RSSI slope calibration @RHREF) and RLCAL (RSSI slope calibration @RLREF)
where RHREF and RLREF are two internal sources for RSSI slope calibration. The following is the sub-state diagram of the CAL
state.
1.1.1.1.1.1.11
ECAL=1
ECAL=0
CAL 1.1.1.1.1EC.A1L=.012
(Manual)
1.1.1.1.1EC.A1L=.013
(Manual)
1.1.1.1.1EC.1AL=.014
(Manual)
1.1.1.1.1EC.1AL=.015
(Manual)
1.1.1.1.1EC.1AL.=10 6
(Auto/Manual)
Figure 8: CAL State Sub-state Diagram
Before calibration, the EXIR and EXDR bits (Mode control register bit [9:8]) must be set to 1.By setting the ECAL bit to “1”
in the STBY state, the SH38300/38301 transceiver will move into the CAL state. If ECAL command’s assertion is not in the
STBY state, the SH38300/38301 transceiver will move into the CAL state when next movement to the STBY state takes place
unless it is reset first. Two registers must be configured, the Calibration control register (I) and (II), for starting the
calibration process. The bits 4 to 8 of the Calibration control register (I) must be set first. These bits are the selection of
which calibrations are going to be executed. They may be set to all “1” to calibrate all five items. Or some of them (one or
more) should be set to “1” to calibrate one or more items. Then the command of calibration, the ECAL bit of the Calibration
control register (II), must be set to “1”. The five sub-states will do its specific calibration in turn. The first sub-state is the
IFCAL sub-state that does the intermediate frequency filter bandwidth and center frequency calibration. The second is the
DFCAL that calibrates the data filter bandwidth and center frequency. The next sub-state is the DEMCAL that calibrates the
demodulator center frequency. The RHCAL sub-state calibrates the RSSI slope (@RHREF) and the last one is RLCAL that
calibrates the RSSI slope (@RLREF). If some of the bits 4 to 8 of the Calibration control register (I) are not issued, the
corresponding calibrations will be bypassed. It must be paid attention that the IFCAL and the DFCAL must have been
executed correctly before executing the DEMCAL alone and the IFCAL must have been executed correctly before executing
the RHCAL or the RLCAL alone.
When finishing the calibration process, the ECAL bit will be reset to “0” automatically in normal case and the state machine
will go back to the STBY state. But it may happen that the calibration process halts and the state machine stays in an
unknown sub-state. To escape from the halt situation, the ECAL bit should be set to “0” manually and the all sub-states will be
reset. At this time, the state machine will also go back to the STBY state.
11/22
V1.2
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet SH38300.PDF ] | |
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