AK2400 Datasheet, PDF (26/52 Pages) Asahi Kasei Microsystems – High integrated receiver for PMR-LMR

[AK2400]
LOFREQ[1:0] : Local frequency setting
LOFREQ
[1]
LOFREQ
[0]
Local Frequency
0
0
45.9MHz
0
1
50.4MHz
1
0
57.6MHz
1
1
28.8MHz
Address 0x08
PGA0[2:0]: Gain setting of PGA0+2nd MIX
PGA0[2] PGA0[1] PGA0[0] PGA0+2nd MIX gain [dB]
0
0
0
(42)
0
0
1
(44)
0
1
0
0
1
1
(46)
(48) (default)
1
0
0
(50)
1
0
1
(52)
1
1
0
(54)
1
1
1
(56)
Note ) Test circuit is shown Figure 8 on page 15.
PGA0_LG: When {PGA0_LG}=1, PGA0+2nd MIX gain is fixed 28dB regardless of {PGA0[2:0]}.
0 : PGA0+2nd MIX gain is controlled by setting of {PGA0[2:0]} (default)
1 : PGA0+2nd MIX gain is 28dB fixed regardless of setting of {PGA0[2:0]}.
PGA2_G[4:0]：When AGC_OFF=”1”, AGC2 gain setting is available.
PGA2_G[4] PGA 2_G[3] PGA 2_G[2] PGA 2_G[1] PGA 2_G[0]
0
1
1
0
0
Gain[dB]
(d1B2 )
0
1
0
1
1
11
0
1
0
1
0
10
0
1
0
0
1
9
0
1
0
0
0
8
0
0
1
1
1
7
0
0
1
1
0
6
0
0
1
0
1
5
0
0
1
0
0
4
0
0
0
1
1
3
0
0
0
1
0
2
0
0
0
0
1
1
0
0
0
0
0
0
Note: Do not set the combination of the code which is not defined in the table given above.
014008989-E-01
26
2015/4