AK2364 Datasheet, PDF (17/26 Pages) Asahi Kasei Microsystems – Two-way Radio Filterless FM Detector LSI

2) Description of registers
Address 0x01 (Control Register 1)
Name
D7(MSB) D6
Control
Register 1
LDOSTAT PDLDON
Initial Value
1
0
D5
D4
BPF_BW[1:0]
0
0
D3
D2
LOFREQ[1:0]
0
1
LDO setting
Data
Function
LDO
STAT
Output status
In LDO power down
Operation
0
1
AVSS shorted
AVDD shorted
PDLDON LDO power control
OFF
ON
[AK2364]
D1 D0(LSB)
BS[1:0]
0
1
Notes
BPF band width setting
BPF_BW BPF_BW
[1]
[0]
0
1
0
0
1
0
1
1
name
F1
F2
F3
F4
6dB attenuation
±10kHz
±7.5kHz
±6kHz
±4.5kHz
Local frequency setting
LOFREQ LOFREQ
[1]
[0]
0
0
Local frequency
45.9MHz
0
1
50.4MHz
1
0
57.6MHz
Note: Do no set the combination of the code which is not defined in the table given above.
Operation mode setting
BS[1]
BS[0]
Mode name
0
0
Mode0(Power-down)
0
1
Mode1(standby)
1
0
Mode2
1
1
Mode3
AGNDIN
OFF
ON
ON
ON
VIREF system
OFF
OFF
ON
ON
Circuits except AGNDIN,
LOBUF,VIREF
OFF
OFF
OFF
ON
MS1431-E-01
- 17 -
2012/10