AK2400 Datasheet, PDF (28/52 Pages) Asahi Kasei Microsystems – High integrated receiver for PMR-LMR

[AK2400]
IFOG[2:0] : IFBUF Gain setting.
IFOG
[2]
IFOG
[1]
IFOG
[0]
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
IFBUF Gain[dB]
0
3 (default)
6
9
12
15
Address 0x09
Software-reset
When data 0x09:10101010 is written to the SRST[7:0] register, software reset is performed.
Address 0x0A
PDN,BS[2:0] : 2nd IF Block Operation mode setting
PDN
BS
[2]
BS
[1]
BS
[0]
Mode name
LDO
D
LDOA,
AGNDI
N
LOBUF
,
VIREF
2nd MIX
～SMF,
DIV,
AGCCNT
IFBU
F
LIMITE
R, RSSI
DISCRI,
Noise
Squelch
0
-
-
-
Mode0
(Power
Down0)
OFF OFF OFF
OFF OFF OFF OFF
1
0
0
1
Mode1
(Note 1)
ON OFF OFF
OFF OFF OFF OFF
1
0
1
0
Mode2
(Initial value)
ON
ON
OFF
OFF OFF OFF OFF
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
Mode3
Mode4
Mode5
Mode6
ON ON ON
ON ON ON
ON ON ON
ON ON ON
OFF OFF OFF OFF
ON ON OFF OFF
ON ON ON OFF
ON OFF ON
ON
1
1
1
1
Mode7
ON ON ON
ON
ON ON
ON
Note 1) : Do not use Mode1.
Note 2) : Do no set the combination of the code which is not defined in the table given above.
DISLPF_G[2:0]： Setting of the demodulation output level
DISLPF_G[2]
DISLPF_G [1]
DISLPF_G [0]
Demodulation output level when
±1.5kHz dev. signal input
0
0
1
100mVrms
0
1
0
200mVrms
0
1
1
1
0
1
300mVrms
50mVrms
1
1
0
100mVrms
1
1
1
150mVrms
Note ) The demodulation output level (±1.5kHz dev. signal input, AUDIOOUT pin output) can be
set to 50mVrms typ. to 300mVrms typ. by setting of {DISLPF_G[2:0]}.
Note ) Do no set the combination of the code which is not defined in the table given above.
014008989-E-01
28
2015/4